[GUIDE] Android 8 API27 SUPERMOD for YT9216BF YT9216CFJ YT9216BJ YT9216BFJ YT9216CJ - root, Viper4Android, TWRP, Custom UI, brick recovery and more

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ExtremeMOD

Senior Member
Aug 14, 2020
1,020
238
London
extrememod.co.uk
Hi all,

If you want to greatly improve the way your head unit works, sounds and looks like - you've come to the right place!

Why install this?
With this package you will greatly improve:
  • Stability
  • Speed
  • User Interface
  • Sound tweaking options
  • Customisation options
20210805112900.jpg 20210805091905.jpg 20210805091639.jpg 20210805091836.jpg 20210805112820.jpg

  • ON PHYSICAL BUTTONS: this software has only been tested on head units with no physical buttons (like volume) | Before making any changes, access the CAR SETTINGS -> FACTORY SETTINGS -> ENCODER SETTINGS on your head unit and take a screenshot of the current settings (see example below). After installing the package, go back to these settings and adjust them if needed. If that doesn't help and if you can't successfully re-calibrate the buttons after installing the firmware, restore your backup

    encoder settings.png

Disclaimer
I do not create the software itself but rather use research and put together different mods and hacks into one package that includes very user-friendly step-by-step instructions on how to install it all. You will find the links to original posts in the instructions pdf's if credit is due. The software might include smaller changes made by me and has been fully tested in real units.

This firmware works on the following 1Gb RAM and 2 Gb RAM units with fake Android 8.1, 9.0, 9.1, 10 and Android 11 installed, with screen resolution of 1024x600 px. It will not work on Tesla-style units:

- YT9216BF | YT9216CFJ | YT9216BJ | YT9216BFJ | YT9216CJ

!! TAKE A PICTURE OF YOUR SYSTEM INFO AND KERNEL VERSION BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!


Screenshot_20181015-082542.png 20210805092140.jpg

The zip file package contains:
  • Modified firmware - courtesy of Stranger21UFA @ 4PDA (link to the original post)
  • TWRP (separate folders for 1GB and 2GB RAM units)
  • Root via Magisk
  • Viper4Android
  • Car Launcher
  • Boot Animation
  • SEPARATE INSTRUCTIONS ARE INCLUDED IN EVERY FOLDER

>>>> ALWAYS BACKUP YOUR UNIT BEFORE MAKING ANY CHANGES TO IT <<<<

!! IMPORTANT !!

This is a fairly advanced installation process and will require you to follow the individual guides included in the software package - to the letter. Failing to do so, will (in "best" case) result in a slow and buggy head unit and in the worse case - brick it altogether.​


DOWNLOAD
YT9216BF * YT9216CFJ * YT9216BJ * YT9216BFJ * YT9216CJ - supermod software package & drivers

STEP-BY-STEP GUIDE (upgrading from working stock firmware):
  1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER. STEPS 5 AND 6 ARE MOST CRITICAL.

  2. Proceed to download the software package for your unit and the drivers package in the same folder

  3. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

  4. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers.

  5. Backup your current system by exporting a full memory dump. Video Guide

  6. Import back your memory dump from step-5 to ensure it fully works. This is how.

  7. Install the package. Separate instructions are included in every folder of the downloaded zip file. Follow them by the order.

IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE YOUR BACKUP AVAILABLE, follow the steps below:
  1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER.

  2. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

  3. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers - (download link is in the video description)

  4. Watch this video on Test Point recovery

  5. Import back your memory dump. This is how.

  6. If successful - try to install the software package again or stay with your original one

IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE NO BACKUP AVAILABLE, follow the steps below:
  1. Share the pictures of your System Info and Kernel in this thread and we'll try to help you



------------------------------------------

This post is being frequently updated and you'll find more guides and mods in our signature​

------------------------------------------

** IF YOU ARE UNABLE TO RESTORE YOUR UNIT, PLEASE CONSIDER DONATING IT TO US @ ExtremeMOD, SO WE CAN BUILD MORE MODS AND TUTORIALS


Thanks! And if this post is helpful to you please don't forget to "like" it.

Enjoy!​


[V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216BF] [YT9216CFJ] [YT9216BJ] [YT9216BFJ] [YT9216CJ]
 
Last edited:
Jun 3, 2009
40
4
OnePlus 7T
I flashed this on my YT9216BJ and everything flashed 100%, but when I went to reboot I got nothing. It looks like the unit isn't turning on at all. There is a blue LED on the board that is lit up when I connect power. Any ideas as to what went wrong?
 

ExtremeMOD

Senior Member
Aug 14, 2020
1,020
238
London
extrememod.co.uk
I flashed this on my YT9216BJ and everything flashed 100%, but when I went to reboot I got nothing. It looks like the unit isn't turning on at all. There is a blue LED on the board that is lit up when I connect power. Any ideas as to what went wrong?

Sorry to hear that. Please try the following steps:

1. Completely disconnect your head unit from power, start Flash Tool as Administrator and execute the command: Format+ALL including deleting the bootloader

2. Run the steps from "Brick Recovery" starting with Step-6.

If the above doesn't work - revert back to your original firmware by restoring your backup. Share your System Info screen found in Car Settings as well as your build.prop file and we'll have a look.

Make sure the USB cable is properly attached. The firmware update should not take more than 20 min. If it does, it indicates a bad cable/connection.
 
Last edited:
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ExtremeMOD

Senior Member
Aug 14, 2020
1,020
238
London
extrememod.co.uk
My PC will not detect the head unit at all. I'll try the test point recovery tomorrow and report back.

In that case, follow the full brick recovery guide in the OP but use your backup to restore it. Once completed, share the info mentioned in my previous reply.

PS try step 1 in my previous reply. Because the unit is only detected once you push "Download" in Flashtool and then connect the USB cable to your computer. Before that nothing will be shown in your Device Manager. If nothing happens in Flashtool then do test point method.
 
Jun 3, 2009
40
4
OnePlus 7T
Why would I need to short them for 3 minutes? Isn't shorting them while I connect the usb enough. That's what the test point instructions say.

Edit: I was able to recover using the Android 6 version of the mod. Could not get the Android 8 mod to work. Thank you for the guide
 
Last edited:

ExtremeMOD

Senior Member
Aug 14, 2020
1,020
238
London
extrememod.co.uk
Why would I need to short them for 3 minutes? Isn't shorting them while I connect the usb enough. That's what the test point instructions say.

Edit: I was able to recover using the Android 6 version of the mod. Could not get the Android 8 mod to work. Thank you for the guide

Glad to hear it! Android 6 is the recommended option, hands down. I made Android 8 for those that can't successfully rollback to 6.

The unit you see in the pictures in the Android 6 post is a project of mine where rollback caused physical buttons to no longer work and I couldn't remap them either. So had to put together Android 8 package.
 

vijay_joon

Member
Dec 11, 2013
20
5
Why would I need to short them for 3 minutes? Isn't shorting them while I connect the usb enough. That's what the test point instructions say.

Edit: I was able to recover using the Android 6 version of the mod. Could not get the Android 8 mod to work. Thank you for the guide
i meant to say 2,3 times , my mistake , i amended, shorting them removes the previous preloader stuff , i may be noob here but this is what worked for me
 
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Jun 3, 2009
40
4
OnePlus 7T
The method I had to use slightly differs from everything I have read.

1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)

2.) I connected my radio to my PC (most instructions said do this after)

3.) Pressed the download button in flash_tool.

4.) Shorted the test points and turned on the toggle switch. As soon as I flipped the switch the radio connected and flashed %100.

I actually soldered a button to the test points to make it easier and in case I have to do it again. Took me a minute but then I realized it's just the volume up button and the procedure is essentially the same as putting a phone into download mode.
 

ExtremeMOD

Senior Member
Aug 14, 2020
1,020
238
London
extrememod.co.uk
The method I had to use slightly differs from everything I have read.

1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)

2.) I connected my radio to my PC (most instructions said do this after)

3.) Pressed the download button in flash_tool.

4.) Shorted the test points and turned on the toggle switch. As soon as I flipped the switch the radio connected and flashed %100.

I actually soldered a button to the test points to make it easier and in case I have to do it again. Took me a minute but then I realized it's just the volume up button and the procedure is essentially the same as putting a phone into download mode.

Soldering a button switch is indeed by far the best approach. However since the majority of folks here are very new to these types of units, the guide makers here aim to keep it as simple as possible.

You're correct about the buttons and their functionality but since the majority of these devices come without physical buttons, you need to force download mode this way.

Finally, test point method is only required if you mess up your preloader. This should rarely happen. The only times you need to write a new preloader is when changing Android API, i.e upgrading or downgrading. And of course if you modify some of the hardware inside.

The majority of times users accidentally delete the preloader from their units in FlashTool.
 
Last edited:

ian1mm989

Senior Member
Oct 6, 2018
73
12
I thing i found the picture for the test points but i am a little confuses 2 and three are on the same pad but 1 and 4 are different. Do i short them all together?
short.PNG
 
Last edited:

YakoPL

New member
Aug 22, 2021
2
1
I have problem with my Unit (Ebilaen YT9216BF 2GB/32GB).
I installed your firmware, and try reboot to twrp (using command: reboot recovery).
After that my unit doesn't boot (black screen).
After that i want to install TWRP (by SPFlashTools as says Tutorial), but Unit was bricked.

My problem is i didn't make backup firmware.

Right now when i try to unbrick my Unit (using a lot of firmware versions) in SP Flash Tools has error: s_ft_enable_dram_fail (4032) (olso when using TestPoint in motherboard).
I think this error means that i have wrong preloader.bin

Any chance to unbrick Unit without having original firmware?
Information about Unit from motherboard:
B9216BF v0.5/C 32G
A005-B9216BF011(9.0)
20210220


Problem solved. I find correcr preloader.bin
 
Last edited:
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ExtremeMOD

Senior Member
Aug 14, 2020
1,020
238
London
extrememod.co.uk
The method I had to use slightly differs from everything I have read.

1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)

You could share a picture of your soldered button. Some folks here might find it helpful :)

I'm thinking of making a guide going for a permanent mod, where the soldered tactile SMD button will be accessible through a small hole in the back of the head unit (similar to how you access the RESET button). That way you can use a 'needle' to short the test points, rather than picking the unit apart every time.
 

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  • 1
    Hello

    I have installed the SUPERMOD on my Device and i like it! :)

    .. but (as before) i can not install Here Navigation on it.
    Google Play does not even show it to install, so when i download the apk i can install it, but it hangs on the Start Screen.


    does somebody have any Hints to get it installed and working with my Device?

    thank you :)

    Sorry but our mod won't solve app-specific issues.
    1
    What the correct firmware version for this unit...
    as you can see on the sticker its YT9216bj model
    please for me YT9216BJ_00012-V001 Android 9.1 Can you upload it, we lost my original software
    Anyway, wrong thread. This one is about root, mods etc.
    you can try here:
    Rom-firmware-brick-recovery-for-android-head-unit-ac8227l
    Btw. I just posted a link for someone to the firmware of another unit that matches to models for both of you.
    1
    This can happen for two reasons:

    1. USB port losing power
    2. Incorrect COM port configuration
    3. Copy Protection
    The first can be solved by connecting your head unit to power 2 seconds after inserting the USB cable (in the steps where you are asked to insert the USB cable). Do this every time.

    USB port losing power - If you are doing this on battery power this is a likely culprit. You will need to disable USB power saving functions and make sure your laptop isnt going to sleep
    1
    Maybe I'm tired, but I see nothing resembling a "requirements" on the first page of this forum thread. It maybe worth explicitly stating that there. Do you have any suggestions? I think my issues may be resolved if I can just get the unit rooted.

    @robbyastra you have the same style unit as me so it's probably not worth the effort you are going through to get it connected.

    Thank you for pointing this out - it seems that we forgot to include them. The original post has been now updated, right after the Disclaimer.
    1
    Hi all,

    If you want to greatly improve the way your head unit works, sounds and looks like - you've come to the right place!

    Why install this?
    With this package you will greatly improve:
    • Stability
    • Speed
    • User Interface
    • Sound tweaking options
    • Customisation options
    View attachment 5383193 View attachment 5383199 View attachment 5383195 View attachment 5383197

    • ON PHYSICAL BUTTONS: this software has only been tested on head units with no physical buttons (like volume) | Before making any changes, access the CAR SETTINGS -> FACTORY SETTINGS -> ENCODER SETTINGS on your head unit and take a screenshot of the current settings (see example below). After installing the package, go back to these settings and adjust them if needed. If that doesn't help and if you can't successfully re-calibrate the buttons after installing the firmware, restore your backup

      View attachment 5400709

    Disclaimer
    I do not create the software itself but rather use research and put together different mods and hacks into one package that includes very user-friendly step-by-step instructions on how to install it all. You will find the links to original posts in the instructions pdf's if credit is due. The software might include smaller changes made by me and has been fully tested in real units.

    This firmware works on the following 1Gb RAM and 2 Gb RAM units with fake Android 8.1, 9.0, 9.1, 10 and Android 11 installed, with screen resolution of 1024x600 px. It will not work on Tesla-style units:

    - YT9216BF | YT9216CFJ | YT9216BJ | YT9216BFJ | YT9216CJ

    !! TAKE A PICTURE OF YOUR SYSTEM INFO AND KERNEL VERSION BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!


    View attachment 5423637 View attachment 5383201

    The zip file package contains:
    • Modified firmware - courtesy of Stranger21UFA @ 4PDA (link to the original post)
    • TWRP (separate folders for 1GB and 2GB RAM units)
    • Root via Magisk
    • Viper4Android
    • Car Launcher
    • Boot Animation
    • SEPARATE INSTRUCTIONS ARE INCLUDED IN EVERY FOLDER

    >>>> ALWAYS BACKUP YOUR UNIT BEFORE MAKING ANY CHANGES TO IT <<<<

    !! IMPORTANT !!

    This is a fairly advanced installation process and will require you to follow the individual guides included in the software package - to the letter. Failing to do so, will (in "best" case) result in a slow and buggy head unit and in the worse case - brick it altogether.​


    DOWNLOAD
    YT9216BF * YT9216CFJ * YT9216BJ * YT9216BFJ * YT9216CJ - supermod software package & drivers

    STEP-BY-STEP GUIDE (upgrading from working stock firmware):
    1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER. STEPS 5 AND 6 ARE MOST CRITICAL.

    2. Proceed to download the software package for your unit and the drivers package in the same folder

    3. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

    4. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers.

    5. Backup your current system by exporting a full memory dump. Video Guide

    6. Import back your memory dump from step-5 to ensure it fully works. This is how.

    7. Install the package. Separate instructions are included in every folder of the downloaded zip file. Follow them by the order.

    IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE YOUR BACKUP AVAILABLE, follow the steps below:
    1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER.

    2. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

    3. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers - (download link is in the video description)

    4. Watch this video on Test Point recovery

    5. Import back your memory dump. This is how.

    6. If successful - try to install the software package again or stay with your original one

    IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE NO BACKUP AVAILABLE, follow the steps below:
    1. Share the pictures of your System Info and Kernel in this thread and we'll try to help you



    ------------------------------------------

    This post is being frequently updated and you'll find more guides and mods in our signature​

    ------------------------------------------

    ** IF YOU ARE UNABLE TO RESTORE YOUR UNIT, PLEASE CONSIDER DONATING IT TO US @ ExtremeMOD, SO WE CAN BUILD MORE MODS AND TUTORIALS


    Thanks! And if this post is helpful to you please don't forget to "like" it.

    Enjoy!​


    [V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216BF] [YT9216CFJ] [YT9216BJ] [YT9216BFJ] [YT9216CJ]
    The link has no software to install, only drivers.
  • 24
    Hi all,

    If you want to greatly improve the way your head unit works, sounds and looks like - you've come to the right place!

    Why install this?
    With this package you will greatly improve:
    • Stability
    • Speed
    • User Interface
    • Sound tweaking options
    • Customisation options
    20210805112900.jpg 20210805091905.jpg 20210805091639.jpg 20210805091836.jpg 20210805112820.jpg

    • ON PHYSICAL BUTTONS: this software has only been tested on head units with no physical buttons (like volume) | Before making any changes, access the CAR SETTINGS -> FACTORY SETTINGS -> ENCODER SETTINGS on your head unit and take a screenshot of the current settings (see example below). After installing the package, go back to these settings and adjust them if needed. If that doesn't help and if you can't successfully re-calibrate the buttons after installing the firmware, restore your backup

      encoder settings.png

    Disclaimer
    I do not create the software itself but rather use research and put together different mods and hacks into one package that includes very user-friendly step-by-step instructions on how to install it all. You will find the links to original posts in the instructions pdf's if credit is due. The software might include smaller changes made by me and has been fully tested in real units.

    This firmware works on the following 1Gb RAM and 2 Gb RAM units with fake Android 8.1, 9.0, 9.1, 10 and Android 11 installed, with screen resolution of 1024x600 px. It will not work on Tesla-style units:

    - YT9216BF | YT9216CFJ | YT9216BJ | YT9216BFJ | YT9216CJ

    !! TAKE A PICTURE OF YOUR SYSTEM INFO AND KERNEL VERSION BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!


    Screenshot_20181015-082542.png 20210805092140.jpg

    The zip file package contains:
    • Modified firmware - courtesy of Stranger21UFA @ 4PDA (link to the original post)
    • TWRP (separate folders for 1GB and 2GB RAM units)
    • Root via Magisk
    • Viper4Android
    • Car Launcher
    • Boot Animation
    • SEPARATE INSTRUCTIONS ARE INCLUDED IN EVERY FOLDER

    >>>> ALWAYS BACKUP YOUR UNIT BEFORE MAKING ANY CHANGES TO IT <<<<

    !! IMPORTANT !!

    This is a fairly advanced installation process and will require you to follow the individual guides included in the software package - to the letter. Failing to do so, will (in "best" case) result in a slow and buggy head unit and in the worse case - brick it altogether.​


    DOWNLOAD
    YT9216BF * YT9216CFJ * YT9216BJ * YT9216BFJ * YT9216CJ - supermod software package & drivers

    STEP-BY-STEP GUIDE (upgrading from working stock firmware):
    1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER. STEPS 5 AND 6 ARE MOST CRITICAL.

    2. Proceed to download the software package for your unit and the drivers package in the same folder

    3. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

    4. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers.

    5. Backup your current system by exporting a full memory dump. Video Guide

    6. Import back your memory dump from step-5 to ensure it fully works. This is how.

    7. Install the package. Separate instructions are included in every folder of the downloaded zip file. Follow them by the order.

    IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE YOUR BACKUP AVAILABLE, follow the steps below:
    1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER.

    2. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

    3. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers - (download link is in the video description)

    4. Watch this video on Test Point recovery

    5. Import back your memory dump. This is how.

    6. If successful - try to install the software package again or stay with your original one

    IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE NO BACKUP AVAILABLE, follow the steps below:
    1. Share the pictures of your System Info and Kernel in this thread and we'll try to help you



    ------------------------------------------

    This post is being frequently updated and you'll find more guides and mods in our signature​

    ------------------------------------------

    ** IF YOU ARE UNABLE TO RESTORE YOUR UNIT, PLEASE CONSIDER DONATING IT TO US @ ExtremeMOD, SO WE CAN BUILD MORE MODS AND TUTORIALS


    Thanks! And if this post is helpful to you please don't forget to "like" it.

    Enjoy!​


    [V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216BF] [YT9216CFJ] [YT9216BJ] [YT9216BFJ] [YT9216CJ]
    4
    Below post is to show my respect & appreciation to iceblue1980 and in addition to share my experience that had for a few days while trying to make my unit better with above firmware.

    As I downloaded firmware package, I chose not to follow his guide by letter & skip a few steps, for example & most important, not to take full back up of memory.
    Then disaster followed, as I almost bricked the unit.
    So I turned back to post/s to find solutions. Iceblue1980 was there, day & night responding to me & sending me several alternatives to try.
    He even volunteered to fix my unit by sending it to him without any money even if he had to spend valuable time for it.
    Finally, after several attempts & lots of files / firmwares / guides he sent me the gold package & we made it work !!!

    I carefully followed his last guide by letter & that was it.

    Now my unit is back to life & even better than ever.

    This guy is awesome & I personally thank him so much.

    To all members, PLS FOLLOW author's
    guides BY LETTER EVERYTIME to avoid surprises !!!!
    AND
    Don't forget to thank the people who are there for you day or night.
    They use lot of their personal time to be there for you & that is priceless !!

    :) :) :) :)
    2
    The links go to a '404' page.
    I did the first step as per the guide then did a factory reset. I then installed TWRP and rebooted then unit. Then I ran the 'reboot recovery' command in the terminal emulator and the unit rebooted, but it only shows the logo, some vertical lines on the bottom half of the screen, then a black screen and hangs there.

    I can still reboot normally and the unit will run.

    Separately, when resuming audio tracks after key-off, the audio is very choppy and unusable. Both bluetooth audio and the music app behave the same.

    To recover, I have to reset the unit and then the audio is ok.

    Also there's a very loud audio boom on start up and shutdown of the unit. This is not there in the stock firmware.View attachment 5409085

    Thank you for sharing these details. I'm afraid your head unit is not compatible with any of my software packages. If you haven't done so already, please revert back to factory firmware to avoid issues.
    2
    View attachment 5405715my board is this where is the recovery pin ? And where I conect an antenna for wifi

    These are the recovery test points:

    IMG-20210909-WA0006.jpeg

    The Wifi/BT antenna mod is shown here, however I plan to post a proper guide on this particular mod in the future.
    2
    The method I had to use slightly differs from everything I have read.

    1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)

    You could share a picture of your soldered button. Some folks here might find it helpful :)

    I'm thinking of making a guide going for a permanent mod, where the soldered tactile SMD button will be accessible through a small hole in the back of the head unit (similar to how you access the RESET button). That way you can use a 'needle' to short the test points, rather than picking the unit apart every time.