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[DiamondJohn]

{Mod edit: Quoted post has been deleted}


You may be better off posting on the following threads. However, they have been quiet of recent times.

[GUIDE][COMPLETE] Android ROM Development From Source To End

Hello Everyone....:D:D Today I will present you all the ultimate guide for ROM development starting from Source to End. This guide will be applicable to all devices. So lets Start :D What is Android? :rolleyes: Android is the...

forum.xda-developers.com

[REFERENCE] How to compile an Android kernel

Introduction Hello everyone, I will be going over how to compile a kernel from beginning to end! Prerequisites: A Linux environment (preferably 64-bit) Knowledge of how to navigate the command line Common sense A learning spirit, there will be...

forum.xda-developers.com

 

[SubwayChamp]

Hi all,
I wanna ask something about this logcat reader app (https://github.com/darshanparajuli/LogcatReader)
I use it on non rooted device with adb mode. I have 2 question here
1. If the device is rebooted does the permission set by adb gone & ?
2. Will the permission lose after I disable usb debugging ?

1 - Permissions survive within reboots, but, some devices tend (are programmed, depending on specific build number, this is ruled by the OEM´will) to disable the USB debugging on every reboot, although the permission still remains, the ADB will show no device, as you can see, it won't say "unauthorized".
2 - Permission is gone only when you revoke USB authorization, do a factory reset, change the device ID, delete the correspondent ADB keys either from your PC or your device.

 

[Aceus]

What do you mean by "convert from Lenovo to HTC"?

My device is Lenovo manufacturer, but I want to know is if I could change it to run HTC manufacturing. It has Android 10.

 

[Droidriven]

My device is Lenovo manufacturer, but I want to know is if I could change it to run HTC manufacturing. It has Android 10.

If you're asking if you can just flash the HTC software on the Lenovo and have everything working, the answer is no.

If the Lenovo and HTC have the same CPU architecture/chipset, it might work if you modify/port the HTC software to work on your Lenovo but it won't be simple or easy to do.

If they do not have the same CPU/chipset, you will not be able to use the HTC software on your Lenovo.

Be warned, if you try porting the HTC software to work on your Lenovo, if you aren't careful or if you don't get everything right, you could very easily brick your device when you flash the modified HTC software on your Lenovo.

 

[Mirlacher]

Hi,

i got a smartphone as present. It is a chinese one from banggood or something like that. The guy who bought it was get rid of it and gave it to me ...

I have resetted it to factory defaults and realised that the Android 10 Image which is installed is awful ....
Now i am considering for a costum Rom for this device. I know nothing about the manufacturer and so on.

I checked the IMEI an the check told me a Samsung Galaxy S21 Ultra 5G. The device Information tells me a MT6889 CPU, 16GB RAM and 512GB ROM ...

Please can you tell me if ther is a Costum Rom wich can be installed on this device and help me trough the process? I installed some CyanogenMod on Sony Devices long time ago, and was pretty happy with it.

Please excuse my bad english. Thank you for your help in advance.
Christian

 

[maybeme2]

I bought a new phone (Moto one 5G ace 128 GB with an additional sdcard slot) and I can avoid rooting it if I could do 2 things on an unrooted phone:
1. Create the equivalent of TWRP's nandroid backup
2. Do the equivalent of Titanium Backup of apps.

I believe they are possible (preferably to the 2nd sdcard) but I don't know how. Can someone help?

Thank you.

 

[Droidriven]

I bought a new phone (Moto one 5G ace 128 GB with an additional sdcard slot) and I can avoid rooting it if I could do 2 things on an unrooted phone:
1. Create the equivalent of TWRP's nandroid backup
2. Do the equivalent of Titanium Backup of apps.

I believe they are possible (preferably to the 2nd sdcard) but I don't know how. Can someone help?

Thank you.

The only way to get a proper nandroid backup is either with root or with TWRP. Without at least one of those, you will not be able to make a nandroid backup or any kind of backup that is as thorough as a nandroid backup. There are plenty of ways to backup data without root or TWRP but none of them can back up the things that a nandroid backup can.

 

[Iredo]

I have a HP 8 G2 Tablet. When I start the unit it displays, "E: failed to mount". I have tried to do a factory reset but cannot get past this screen.

I appreciate any help or advice.

 

[Mirlacher]

Hi,

i got a smartphone as present. It is a chinese one from banggood or something like that. The guy who bought it was get rid of it and gave it to me ...

I have resetted it to factory defaults and realised that the Android 10 Image which is installed is awful ....
Now i am considering for a costum Rom for this device. I know nothing about the manufacturer and so on.

I checked the IMEI an the check told me a Samsung Galaxy S21 Ultra 5G. The device Information tells me a MT6889 CPU, 16GB RAM and 512GB ROM ...

Please can you tell me if ther is a Costum Rom wich can be installed on this device and help me trough the process? I installed some CyanogenMod on Sony Devices long time ago, and was pretty happy with it.

Please excuse my bad english. Thank you for your help in advance.
Christian

Can nobody help?

 

[SubwayChamp]

Can nobody help?

The first you need to know, is exactly, the specs from your device, which processor really has, among other info. As you can realize, the specs from the manufacturer are absolutely surreal.

Starting from this point, I don't think, you find a specific custom ROM for such generic device, so the step 2 would be, try to port this ROM for your device, to achieve this, you should find a custom ROM that is actually, running on a device with the closer similar specs to yours, then learn how to port it. Assume that your device really have an MT6889, then you should search, for example, something like: "Devices with processor MT6889", then, from the list you'll have, search "custom ROM for X device", this ROM would be a good candidate, to try to port it.

If your device is running Android 8.1, most likely Android 9 (more available files for), then you should use a GSI.

The long process would be building it from source, I don't think you find a source for such generic/obscure device.

 

[SubwayChamp]

I have a HP 8 G2 Tablet. When I start the unit it displays, "E: failed to mount". I have tried to do a factory reset but cannot get past this screen.

I appreciate any help or advice.

Flashing the stock ROM would solve it. The scripts verified in the flashing process mount every partition to re-write them, once by once, again.

 

[Mirlacher]

The first you need to know, is exactly, the specs from your device, which processor really has, among other info. As you can realize, the specs from the manufacturer are absolutely surreal.

Starting from this point, I don't think, you find a specific custom ROM for such generic device, so the step 2 would be, try to port this ROM for your device, to achieve this, you should find a custom ROM that is actually, running on a device with the closer similar specs to yours, then learn how to port it. Assume that your device really have an MT6889, then you should search, for example, something like: "Devices with processor MT6889", then, from the list you'll have, search "custom ROM for X device", this ROM would be a good candidate, to try to port it.

If your device is running Android 8.1, most likely Android 9 (more available files for), then you should use a GSI.

The long process would be building it from source, I don't think you find a source for such generic/obscure device.

Thank you for your support. Is there an app wich is able to connect the real hardware specs by examing the device?

 

[Mirlacher]

Thank you for your support. Is there an app wich is able to connect the real hardware specs by examing the device?

 

[Mirlacher]

Well, i found a tool for examining the phone. The Output i transfered to a PDF-File i added here. Can you please help me find a compatible ROM for the device? Thank you in advance for your help!

 

[SubwayChamp]

Well, i found a tool for examining the phone. The Output i transfered to a PDF-File i added here. Can you please help me find a compatible ROM for the device? Thank you in advance for your help!

This is not exactly a tool but an app, I don't know from a hardware tool that can do this, and I doubt even it exists.
An app only can read the info that is written in the firmware, all the info displayed is misleading.
You can't expect better things from a device that is sold in these conditions.
No way to know for real, if the device is capable of 4G, would be grateful.
Anyway, there are some info that could be possible, again, take in account that this is absolutely non-technical/untrusted, it seems the device ports a MediaTek SoC 6889, it's running MM, and it's a 32-bit processor, under the risky to mess some things you could try the next:

- Download this tool, to back up every partition https://github.com/bkerler/mtkclient
- You can unlock bootloader with the linked tool, search and learn the previous steps to take that.
- Search (as I said you previously) "devices with MediaTek 6889 or with mt6889"
- From the list you get, discard those sold that ran newer versions than MM, out of the box.
- From the list you get, search "Device X XDA" to find if the device has a dedicated thread here., if not, then search "Custom ROMs for device X"
- Then search for "How to port custom ROMs for MediaTek devices"
- Be sure, again, that the device is running the same version as your device claims to run, MM.
- Apply, under risk/trial & error, all the learned.

 

[Iredo]

Flashing the stock ROM would solve it. The scripts verified in the flashing process mount every partition to re-write them, once by once, again.

Thank you for your reply! Can you suggest a place where I could find the stock ROM? I have looked everywhere.

 

[SubwayChamp]

Thank you for your reply! Can you suggest a place where I could find the stock ROM? I have looked everywhere.

I don't know, the most you can do is search for "stock ROM for X device", first search if your tablet have other variants, for other regions, in some way the firmware for them, could work too, for your device, in case some exists.

HP 8 G2 Tablet Update for Android OS – HP Driver & Downloads

HP 8 G2 Tablet series, Full Feature Software and Driver Downloads for Android Operating System(s). HP 8 G2 Tablet Update for Android OS Downloads Available Drivers for Android Operating System; Android Pie Android Oreo Android Nougat Android Marshmallow Android Lollipop Android KitKat Android...

hpdriverscenter.net

 

[Iredo]

I don't know, the most you can do is search for "stock ROM for X device", first search if your tablet have other variants, for other regions, in some way the firmware for them, could work too, for your device, in case some exists.

Thank you.

 

[xda-hayduke]

Moved to https://forum.xda-developers.com/t/...o-download-mode-any-usbjig-for-usb-c.4446661/

 

[sina_mehdizade]

hey everyone, is there a way to get vpn servers, username and passwords from installed free vpn apps?