[ROM][PX3][RK3188][Nougat][7.1.2] Hal9k ROM 2 for ALL RK3188/PX3 MTCD/E head units

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GigCSburger

Member
Apr 25, 2021
9
0
Wont be any anti virus either - I use Linux so I have no antivirus and it still happens sometimes. @Hal9k_'s modinstaller was sposed to sort it but even that doesnt always work.

You mean you installed the MCU MTCD KLD 2.57 ? That wont make it any faster as its an MCU not a ROM. Thats not the latest KLD MCU by the way, its MTCE 3.01, check the fileserver in my signature.
I tend to agree on MCU, but it felt that the system was a bit faster, however, it might have been due to other reasons. I noticed my HU doing that from time to time. Not sure what's causing it though. I rarely connect my HU to internet, because it becomes almost completely unresponsive. This is why I'm glad to have found this ROM and I'm willing to give it a try.

Thanks for the link to MCU, I noticed though that v.3.01 is MTCE not MTCD. I remember seeing a note somewhere that it's same, but can you confirm? EDIT: nvm, I found your answer in Post # 2095). Thanks.

I have so many issues with my HU that it might seem not really worth using it in its current state - LOL - I don't use WIFI, my dashcam is laggy and videos rendered are choppy, so I had to buy a stand-alone one, the backup camera image is awful, overall system is laggy and slow. Radio stations are not saved in order, and sometimes there is bad interference. Half of steering wheel keys don't function as intended, because the HU looses the presets, and I don't bother resetting them. Mic volume is awful, so I don't use the system for calls. I use offline maps of Google Maps, because if I connect my HU to internet, it will just hang. And finally, I'm not happy with the screen colors, brightness and contrast. The former look discolored and faded. Not sure if this can be fixed by software, or this is an issue with the LCD screen. I have an impression it was better when I bought it, so I kind of suspect an update is the culprit. I installed the update provided by the seller 3 years ago. It fixed my issue with BT (which I use for Torque), but introduced all these issues, which I didn't have before. I reached out to the seller on a few occasions requesting an update, but was told there was none. One good thing my HU has is audio sound. It is to die for. I use jetAudio and I hope this ROM has good audio too.
 
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GigCSburger

Member
Apr 25, 2021
9
0
Installed MCU MTCE 3.01 this afternoon. I can definitely say that my HU became more swift considerably. I was really surprised. I even was able to watch videos when I was connected to the internet, something that I was not able to do since I installed the update 3 years ago. Furthermore, I was able to run Google Maps with video in the background. The radio was storing stations in order! And also the screen got somewhat brighter.

I decided to do the factory reset and see how it would change things. Once I did it, I noticed that the system got somewhat slower, but still faster than it was yesterday.

I wanted to proceed with the install of this ROM, but was not able to get into recovery mode. Does someone know how to?
 

GigCSburger

Member
Apr 25, 2021
9
0
Installed MCU MTCE 3.01 this afternoon. I can definitely say that my HU became more swift considerably. I was really surprised. I even was able to watch videos when I was connected to the internet, something that I was not able to do since I installed the update 3 years ago. Furthermore, I was able to run Google Maps with video in the background. The radio was storing stations in order! And also the screen got somewhat brighter.

I decided to do the factory reset and see how it would change things. Once I did it, I noticed that the system got somewhat slower, but still faster than it was yesterday.

I wanted to proceed with the install of this ROM, but was not able to get into recovery mode. Does someone know how to?
Ok, I found a way to get into recovery mode. My HU is EONON GA6200F, and to get in there, I had to press the Power button and hold it until the lights flash 4-5 times, then release the button and 1-2 sec later short-press it again. If it doesn't work at first time, I had to do it again, and eventually it worked.

It's funny though that the HU boots into Android 5.1.1 recovery mode, not Nougat. Is it because it won't recognize the SD card? I tried inserting the bootable SD-card containng the image prepared by SD_firmware_tool into GPS and SD CARD ports, and USB with the ROM image into both USB ports to no avail. I guess the problem is that the SD Card is not recognized, so the system won't boot into Nougat. How do I force it?
 
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typos1

Senior Member
Apr 3, 2007
9,492
1,740
UK
The MCU will have no effect on the speed of the HU. It can effect your internet connection though.

If its booting into Lollipop recovery you have a Lollipop ROM.
 

GigCSburger

Member
Apr 25, 2021
9
0
Hi, yea :) i was getting tired of running between car and home to test different approaches of formatting and running down to check if it would work...
Plus i wasnt 100% sure with the HU connected in the car that it didn't still get from somewhere like the subwoofer amp or elsewhere a tiny amount of power that would prevent it from completely shutting down in order to reset and boot from the SD card.
So i wanted everything to be in one place in front of me to focus and eliminate one by one all variables.
Practically at this point i was beginning to be suspicious of everything else apart from the HU and the sd card+slot+usb stick that they're working, that's how sure i was there wasn't fault in them /or how i format them :p or that clear check-box means empty, without 'tick' /
So i went to search for other versions or sources of the SD Firmware Tool because i saw something suspicious that i cant describe.
I downloaded SD Firmware Tool from here: https://ublaze.ru/sd-firmware-tool-rockchip/ - and the magic happened on the 1st try, now i'm with Nougat.
I don't know why with the one i downloaded from the 2nd post link it didn't work.
But if one lesson is learned from all this, if Hal9k says it fits that and that unit - it fits, don't give up until you find how to fit it.

Btw, over the Lolipop, the unit now feels like it does not have only 1GB of ram and 4 cores. It's like... now it has 1.5GB and 6 cores :laugh: :laugh:
I'm going to try it tomorrow. Hopefully, it works for me too. :)
 

GigCSburger

Member
Apr 25, 2021
9
0
So I downloaded SD_Firmware_Tool from the location mentioned by opexo above, and voila, I was able to boot into Nougat. I had to try different USB sticks with the images downloaded at different times, and one of them finally worked, and now I have Android 7 installed on my HU Eonon GA6200F! Am I happy now!

I was super-surprised how fast it was! I connected to internet via my phone and logged into Google account, and it slowed it down considerably though. Then I activated MicroG and the HU got snappy again! And let me tell you, I have never seen it so fast! Not a day since I bought it four years ago. I also noticed that the screen became brighter, sure the color scheme is different, but still it is visibly brighter and maybe somewhat crispier, not sure, but something changed.

I installed jetAudio+, MX Player Pro and Torque from SD card with no issues. The sound is great and even greater than it used to be before. Maybe this is due to the fact that the versions of the apps installed are more recent. MX Player that I had before didn't have the equalizer for videos, the latest version does have it. It makes a difference. I stayed in the car for another hour just watching the videos, because I couldn't resist splendid sound and more vivid colors LOL. Don't get me wrong, this could not compare to your TV screen, but it's just better than what I had before.

I didn't try BT yet, but WiFi connectivity is somewhat sporadic. I could not connect to my home WiFi because I was getting "Failed Configure IP" error, never seen it before. Not sure what's causing it. I was able to connect to my phone though, no problem there. Also, my big concern is that the HU doesn't seem to detect my location. I don't know if GPS functions correctly now, and which settings should be adjusted. All I know is that it worked earlier today, but not since I installed this ROM. I tried to go to Play Store, but it gave me an error "Error retrieving information from server DF-DFERH-01". I think I have to update Play Store, but I don't remember how. I'll search this forum and hopefully find a solution for that.

EDIT: For Play Store I think the problem is related to F-Droid. For me it got stuck at 29% of download. I'll have to ensure the download is complete.

Also I'd like to have a different launcher, as the minimalist style is not my style :). Hal9k mentioned there is a folder with various launchers, but I couldn't find it. I'll have to search the forum for that too.

So to recap:
1. Try multiple SD cards and USB sticks, one of them will work;
2. Try various versions of SD_Firmware_Tool to create a bootable SD card using images downloaded at different times, one of them will work;
3. If it doesn't work, try different computers to create both SD card and USB stick with ROM image.

For me it was a combination of all three above that worked. I didn't think that the choice of SD cards, USB sticks and computers would be so crucial, but apparently so. Read my previous posts for details. To get into recovery mode, I used the Power button at first, but then I would just pull the Radio fuse in the fuse box under the dashboard. It worked perfectly.

When I got into Nougat recovery mode at first, the system couldn't find the image file, it would not boot into Android 5, because it was wiped. So I got stuck with the HU with no OS. I didn't despair, and just methodically continued on copying the image on different SD cards and USB sticks (tried both methods) until I stumbled on a USB stick that worked. Don't forget to format it before copying the image. I copied just one image file to the root, no text or html files.

HUGE THANKS TO Hal9k for this excellent ROM, and to typos1 and others for their contribution and support !

I hope I will be able to fix the issues I mentioned above, or someone could point in the right direction, because I'd like to keep this ROM and would hate to roll back to Android 5.
 
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torsti

Senior Member
Jul 4, 2010
150
10
whats the latest magisk I can use on this rom? if I try to update in magisk, it does not work.
If I change to micro G, I can't access playstore. Any solution?
 
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Froost

Member
Oct 4, 2021
10
0
hello king man greetings from turkey, you are doing this job super, now i am using your 5.1 android rom, but whatever i do for android 7 does not work. As in your second message, i uninstall and install tik with the sd tool, but it creates sdupdate.img in the sd card, unfortunately it does not see it, but your 5.1 rom duptade.img is loading automatically somehow 7.1 nupdate.img sdupdate.img is not loading at all please help
 

Froost

Member
Oct 4, 2021
10
0
@Hal9k_ help me please 🙏🏻
Screenshot_2021-10-04-22-23-33-133_com.miui.gallery.jpg
 

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Froost

Member
Oct 4, 2021
10
0
hello king man greetings from turkey, you are doing this job super, now i am using your 5.1 android rom, but whatever i do for android 7 does not work. As in your second message, i uninstall and install tik with the sd tool, but it creates sdupdate.img in the sd card, unfortunately it does not see it, but your 5.1 rom duptade.img is loading automatically somehow 7.1 nupdate.img sdupdate.img is not loading at all please help
 

Froost

Member
Oct 4, 2021
10
0
there is no problem, as far as i read here, the users are satisfied, my problem is that i can't install roms, just help me with that.
 

typos1

Senior Member
Apr 3, 2007
9,492
1,740
UK
I can tell you from experience that 7.1 with ! Gb RAM, will not work properly unless you remove ALL google apps. All the help you need is already in this thread - I am not going to re-type it all !
 

Froost

Member
Oct 4, 2021
10
0
I can tell you from experience that 7.1 with ! Gb RAM, will not work properly unless you remove ALL google apps. All the help you need is already in this thread - I am not going to re-type it all !
I've already read the whole article, my friend, I guess you don't want to understand. Even if I'm going to have problems with 1 gb ram, I need to install this rom first. How to install 5.1 software is already in the second message, but it doesn't work, I added the pictures, I get an error!
 

typos1

Senior Member
Apr 3, 2007
9,492
1,740
UK
I have written extensively about how to do it in this thread, I am not going to retype it or spend my time going through the whole thread for you trying to find it, the info is there, you have to find it.
 

typos1

Senior Member
Apr 3, 2007
9,492
1,740
UK
Well, as I said, I d have to review each page one by one for you if you dont and I ve got too much to do to do that.
 

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  • 71
    Hal9k Mod v2.5
    07.04.2019
    Firmware for platform MTCD-MTCE Rockchip PX3-RK3188 1024x600 800x480 based on the latest official version of HCT2.
    This is the further development of my Mod v1.x based on Android 5.
    Thanks graviton.no for the equipment provided for development.
    Nougat for ALL RK3188/PX3.

    You can install this firmware on your radio, if in Settings > About machine >
    • The model starts with px3
    • The Android version starts with 7.1.
    • The chip version starts with MTCD or MTCE. Then there can be any letters, two, three, four - it does not matter.
    Machine status example:
    00.png

    Or, if in Settings > About device > Version info>
    • The MCU version starts with MTCD or MTCE. Then there can be any letters, two, three, four - it does not matter.
    • The Android version starts with 5.1.
    • The Build number starts with rk3188.
    Version info example:
    01.png

    Also, to restore the radio, if something goes wrong, you should be able enter the recovery.

    The main advantages and trends of development of this mod:
    • New features.
    • Correction of existing errors and imperfections of the stock.
    • Best responsiveness in comparison of the stock + the ability for the user to improve this indicator.
    • The customizability. All critical changes made on my taste, you can customize for yourself or do as it was in the stock.
    • All changes made directly in application code without the use of Xposed framework for best perfomance.
    • Stability.
    • The stock design.
    The first boot takes less than one minute.
    When switching from any other firmware or from version 1.x, user data is cleared automatically!
    If you are upgrading from a previous version of 2.x, you do not need to wipe. But it is recommended if any problems arise. Especially if you used microG in the previous version.

    If you install without wiping the data on top of the previous version, the first boot may take several minutes. Depends on the number of third-party applications.
    But be sure to go to "Mod settings" to apply the default settings.
    After installing or updating the firmware, the HU will reboot one more time to complete the installation of Magisk.


    How to install the firmware ?
    Extract the nupdate.img file from the archive to the root of the USB flash drive or SD card. It must be formatted in FAT32.
    Take out all the other flash drives, SD cards, modems and other devices from the radio jacks.

    Insert the USB flash drive into the USB connector of the radio. It is desirable to use the connector in which it is defined as USB1 (can be seen, for example, in the player).
    Or SD-card - in the GPS slot.

    The radio will prompt "Firmware Updating".
    Click "Install".
    02.png

    In addition, you can install the firmware through the System update in Settings.
    Or through the recovery.
    If you have an old version of the MCU, I highly recommend upgrading to the current version.
    MTCE MCU can be installed instead of MTCD. (make sure the letters of the current MCU matches the one you flash!)

    If you like my ROMs and you want to thank me, please consider making a donation. You can find required details on my website or just click here.
    Download:

    Version 2.5 Google Drive

    Old versions

    Version 2.4 Google Drive
    Other launchers not included in the firmware. Installing by the replacement /system/priv-app/Launcher3HCT2

    List of changes:
    Version 2.5
    1. Moved to the new base firmware from December 2018.
    2. Added or corrected translations in different languages:
      Thanks to:
      de @maus05, @Toto1365
      el @grigoris_a
      it @tonimontoia
      cs @Bugscze
      hr @dankec2000
      hu @didu73
      nl @ZeroZorro
      fr @mykerinos1
      sv @kupa
      es @segu45
    3. Improved screensaver:
      Made displaying covers for most third-party players and radio station icons for PCRADIO app.
      For correct work, I recommend adding your players to the "List of applications that should not work simultaneously".
      Made displaying recommendations when driving along a route for Yandex.Navigator, Yandex.Maps, Google Maps, Sygic GPS Navigation & Maps.
      Made displaying temperature from Yandex.Weather, if the data on the temperature does not come from the CAN-adapter.
      Now the screensaver is correctly displayed in 800x480.
      While the screensaver is running, the stock volume control is no longer shown.
    4. Added pop-up messages from BT Music and third-party media players. Third-party media players must be added to the appropriate list.
    5. Added a list of applications that will work in immersive mode (full screen).
    6. Made a separate list of navigation using TTS
    7. Added the ability to assign the last launched navigation to the Navi button (to switch between navigation and player, for example).
    8. By popular demand :) added custom parking lines. Thanks for Incognito+
    9. Magisk updated to v18.1, Viper4Android updated to v2.7
    10. Added new button codes to replace
    11. OEM launchers with widgets can now be installed just all at once.
    12. Much work has been done to ensure support for new basic firmware, although this is not visible from the outside.
    Old versions

    Version 2.4
    1. Moved to the new base firmware from October 2018.
    2. In exchange for SuperSU, another root (Magisk) is preinstalled. Do not update.
      You can install additional modules to extend the functionality.
    3. Added ability to edit the list of applications in the carousel that are switched with the Mode button.
    4. Added the ability to replace applications that run instead of stock. You can have your radio button launch PCRadio etc.
    5. Added speed dependant volume control.
    6. Added color selection in the HCT screensaver.
    7. Fixed bug with ringtone selection.
    8. A new screensaver has been added that displays the time and date, information from most third-party players (not just regular ones), the volume level, the speed, and the temperature if this data is available.
      To display the temperature you need a CAN adapter.
      It is possible to customize the appearance of the screensaver: colors, background image, the maximum value for the speed indicator.
    9. Added the ability to replace the codes of buttons located on the steering wheel and the front panel.
      You can configure the actions that are performed when you press the buttons on the steering wheel, even if they are connected via a CAN adapter.
    10. Added the ability to select a group of radio stations.
      If you are traveling to another locality where other radio stations operate, you can select a different group and tune in the stations again.
      And having come home, choose the default group again and your settings will be restored.
    11. Added a list of applications that have access to USB-devices. It allows you to get rid of the annoying request for access.
    12. For fans of Taskers, the ability to assign numbers 1-9, 0, and the characters * and # to the steering buttons is added.
      Intent = "com.microntek.report.event"
      Extra "type" = "key"
      Extra "value" = button code.
    13. The name of the artist was added to the pop-up message from Music, and the frequency from the message from Radio.
    14. Added an equalizer call for a long tap to the on-screen button of presets in Music.
    15. The checkbox "Switching folders in Music with buttons on the steering wheel" is removed, since now the buttons on the steering wheel can be customized.
    16. Replaced sysinit system - scripts in init.d are now executed in parallel.
    17. Updated microG to latest version.
    18. A short press on the on-screen power button now turns on the selected screensaver.
    19. Added MTCDialer application for calls from third-party applications.
    20. The Google app now calls via MTCDialer without additional settings.
    21. You can muffle music by navigation application that play voice prompts through a speech synthesizer.
      To use, you need to add the application to the "List of navigational applications that muffle other sounds" and select "Text-to-speech engine that muffle other sounds"
    22. Replaced icons in the regular launcher and in the status bar.
    23. Added the ability to call System UI Tuner from Mod Settings.
    24. Added the ability to replace new button codes for a joystick in a Mazda car.
    25. Other minor changes aimed at improving stability and usability.
    Version 2.3
    1. Moved to the new base firmware from April 2018.
    2. Made a list of applications that allow the screen saver to be started.
      You can add a third-party launcher or player to it, for example.
    3. Added the ability to switch tracks in third-party players using the steering wheel buttons for owners of CAN-adapters for Mercedes cars, etc.
    4. Made a list of applications that are restarted after sleep.
      I included the PCRadio application in it. Now it always starts playback correctly after exiting sleep, if it was started when HU go to sleep.
      In PCRadio's settings, you must enable the "Resume playback when application starts" switch. Also it is necessary to remove it from the whitelist if it was added to it.
    5. Editing the whitelist now does not require a restart of the HU.
    6. Added a volume control in the style typical for AV equipment from the 7floor module
    7. Added the ability to display the volume control at the top, middle or bottom of the screen.
    8. Added the ability to adjust the time during which the volume control remains on the screen after changing the volume value.
    9. Has been made a list of applications that should not work simultaneously.
      This list is an extension of the corresponding system list.
      If one of the applications included in this list is launched, then the rest are closed.
      That is, for example, if you include the same PCRadio, then it will close when you start the stock Music or Radio. And vice versa.
    10. Added the ability to move the statusbar to the bottom of the screen. (Experimental option.)
    11. Changed the logic of the name request for the button of the stored radio station.
      If the name for the stored frequency is not specified earlier, text from the RDS is suggested.
    12. Other changes aimed at improving stability.
    Version 2.2.1 OTA-package
    1. Added the ability to disable switching folders in the Music by the buttons on the steering wheel.
    2. Fixed interface display for 800x480 resolution.
    Version 2.2
    1. In audioplayer added a jump to the previous / next folder on the seekdown / seekup steering wheel buttons and a on the long tap to the prev / next screen buttons.
    2. Added folder name display to the pop-up message when switching between folders.
    3. Made a list of navigational apps that muffle other sounds when playing voice prompts.
      The list should include all navigation applications, including the one that is set by default to the Navi button.
    4. Added application F-Droid for automatic update microG.
    5. Added the ability to hide storage icons in the statusbar.
    6. Updated the time zones to version 2018d.
      After updating without a wipe, make sure that the time zone is set correctly.
    7. Other changes, to improve stability.
    Version 2.1
    1. Moved to the new base firmware from February 2018.
    2. The possibility of OTA-updates is added.
    3. Added the ability to lock device as a regular Android device.
      The lock is turned on after rebooting or exiting from sleep.
      You can also turn on the lock after the Android screensaver has triggered or manually from the shutdown menu.
    4. Sorting in alphabetical order of all lists in players is done.
    5. Added pop-up messages showing information about the current radio station and music file. It is possible to set the font size and the duration of the messages.
    6. The audio player goes to the next folder in the list after the playing the last file in the current folder in the sequential play mode.
    7. Added a request for a name for the button of the stored radio station.
    8. Added the ability to choose from eight screensavers. Pictures here.
    9. Added the ability to turn off the full-screen keyboard.
    10. Added the ability to turn off the restarting applications that worked before going to sleep.
    11. In the application "Wheelkey Study" added actions "turn off the screen backlight", "recent applications" and "F-Cam application".
    12. In third-party applications preinstalled "sound improver" ViPER4Android.
    13. In the OEM added 5 launchers and their widgets (AY, HCT2, HCT3, KGL, ZH). Selection of the launcher after installation is made as usual, by pressing the Home button, as in the phone.
      Unfortunately, Android 7 does not allow third-party applications to automatically create widgets.
      Therefore we do this:
      Install widgets and launcher APKs. Add any widget and give permission (see Screenshot).
      Then remove the launcher and install it again. Or clear the launcher's data.
    14. In the folder with the launcher HCT2 added weather from vitarkananda. Works only with this launcher.
    15. Other changes, to improve stability.
    Ideas of some improvements are taken from the module xposed-mtce-utils and other modules with the permission of the author, MVG-V70. For which I thank him very much.
    But they are implemented without using the Xposed framework.

    Version 2.0
    1. All interface changes are also made for screen resolution 800x480.
    2. The firmware is completely re-odexed with optimization for the px3 processor.
    3. The Mod settings are made in a separate application, also available from the "Extra settings" in the Settings app.
    4. Added the ability to replace Gapps on a microG with a lightened Play Market and back, at any time. It's extremely speed up the device, actual for 1 GB of RAM.
      Located in the Mod settings.
    5. Allowed autoloading of third-party applications when the device starts. (Torque, etc.)
    6. Fixed playback of voice alerts in the standard voice package in Mapcam.info.
    7. Removed the "red text", which appeared, if you flash the firmware on the radio, where was Android 5.
    8. The internal memory is expanded on 256MB.
    9. Preinstalled root and SuperSU.
    10. Added support for init.d
    11. The default is:
      • English language and date format, time zone CET.
      • Watching video whle driving - enabled
      • Bluetooth Password - 1234
      • Mixing level - 4
      • GPS time update - enabled
      • Navigation sound mode - mixing
      • Timeout of the screen saver - 1 minute, options added: 2 minutes, 10 and 30 minutes.
      • Added the ability to choose the speed at which the video will be blocked
      • Deny connection to data services in roaming.
      • Volume when reversing -4
      • Brightness of the screen at night - 20%
    12. Unnecessary applications and files were deleted:
      • Open Wnn
      • Built-in Pico TTS speech synthesizer
      • WAP Push Manager
      • Corporate profiles
      • EasyConnected
      • Android live wallpapers (the ability to install your own Live wallpaper is left)
      • GPSTest replaced with GPS Test Plus
    13. Google Maps has been moved from system applications to third-party applications. Now you can simply delete them in Settings if they are not needed.
    14. Also, in third-party applications preinstalled Google Text-to-speech Engine. Speech synthesis works without connecting to the network.
    15. Synchronization of Contacts and Calendar is added.
    16. Time Zones updated to the latest version.
    17. The built-in Contacts application is enabled.
    18. Allowed to install applications not from the Play Market.
    19. The Daydream functionality is enabled. This allows you to install any screensaver from the Play Market without stopping at one.
      By default, the Clock screensaver from Android is selected. Color can be changed.
      Any third-party screensaver is turned off under the same conditions as the standard one (touching the screen, switching cameras, etc.)
      Android screensaver can be turned off, then the standard screensaver will work.
    20. In the Bluetooth application, the name field is enlarged in the phone book. Added the recognition of the OBD adapter based on the settings so that the system distinguishes them from the phones and works with them correctly.
      It is necessary, if your adapter does not have the letters OBD in the name.
    21. In the Video application, the playlist is enlarged.
      Repeat is disabled by default.
    22. In the Music application, the playlist is enlarged and the repeat is disabled by default.
      Instead of a spinning plate, a square fixed cover is made, loading of lyrics from the network is included,
      the player is paused for an incoming call and the Mute button is pressed.
    23. Radio - the running RDS text has been removed from the saved stations buttons. Now we can assign names to saved stations.
    24. Fixed Bluetooth.
      Now normally works those diagnostic programs that previously wrote that Bluetooth is turned off, offered to turn it on and hang up.
      Programs automatically detect a previously paired adapter.
    25. The on-screen power button in the status bar is made.
      • Single click to turn on the screen saver.
      • Double click to make a screenshot.
      • Triple click to kill the active application.
      • Long press - shutdown menu.
      Added items in the shutdown menu : Restart, Safe mode, Recovery mode.
    26. Added the ability to change the ringtone to any in the ringtones folder (only for the MD725 Bluetooth module)
    27. Added the possibility of increasing TTL by default to bypass restrictions on the distribution of Internet from mobile devices.
    28. Added a white list of applications that do not close when going to sleep, with the ability to configure.
    29. The number on the volume control is increased and made white.
    30. Added hidden item "Developer options" in settings.
    31. The Status item is added in Settings - About machine.
    32. Added the ability to disable some statusbar elements.
      By default, the Home button, the Volume, Eject and Brightness icons are disabled. The Back button is moved from right to left. Everything can be configured, as it was in the stock or in another way.
    Known issue: On devices with 1 GB due to lack of RAM or another videocodec hardware, the built-in video player and other programs that work with video does not work normally.
    Solution: use a third-party video player.

    Version 2.0 screenshots
    18
    Helpful Tips
    • How to automatically install your favorite APKs after flashing ?
      Create a hct folder on a USB flash drive with firmware.
      In this folder create folder apk.
      Put your favorite APKs in this folder, they will be automatically installed after flashing.

    • How to switch to microG ?
      Go to Mod Settings > Framework selection and select microG option. Changes take effect immediately !
      The device will restart multiple times.
      Then run the microG Settings app, give the necessary permissions and enable Google device registration and Google Cloud Messaging.
      If you have GSM modem connected to your radio, go to UnifiedNlp Settings and turn on Mozilla Location Service in "Configure location backends" and Nominatim in "Configure address lookup backends".
      Then go to Self-Check and verify that all the checkboxes are enabled (the check boxes in the lower part is only available with GSM modem).
      Recreate Google account.

    • How to install this firmware instead of Android 5.1.1 ?
      Download the attached archive with the SD_Firmware_Tool utility and unpack it.
      Prepare a micro SD card for 2 - 4 - 8 Gb. It will be completely overwritten.
      Prepare USB flash drive with the same firmware.

      Insert the card into the PC card reader and run SD_Firmware_Tool.exe as Administrator.
      Choose the removable disk.
      Clear the "Upgrade Firmware" check box. It's important !
      Press the "Firmware" button and select nupdate.img file.
      Press the "Create" button and wait for the process to finish.

      Insert this card into the "GPS" slot on the radio.
      Insert the USB flash drive with the same firmware into the USB slot on the radio.
      Hard reboot or turn off and turn on the power of the radio.

      The radio will boot the recovery from Android 7 from the card and will go to the menu.
      Select "Apply system image from SD card or USB"> "From usb storage"
      Wait for the flashing process to finish.
      Then select "Wipe data/factory reset"
      Then "Reboot system now"
      Radio will ask you to remove the SD card. Remove that.

      Radio will boot to Android 7.

      Note: You must Restore this card with the SD_Firmware_Tool utility for future use.
      You can return to Android 5 in the same way.
    microG and Version 2.1 screenshots
    12
    Version 2.2, 2.3 and 2.4 screenshots:
    9
    Version 2.5 released
    List of changes in the first post. Screenshots in the third.
    6
    Will we get an update for the px3?
    Yes. I just can not do everything at once.