[UNLOCK][ROOT][TWRP][UNBRICK] Fire TV Stick 2nd gen (tank)

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Sus_i

Senior Member
Apr 9, 2013
1,858
811
Is there any hope for a FireTV 2nd generation OS 5.2.9.1 ?
On power up it go into Optimization and stays there. Let it run
for a couple days with no change. I try a few other methods using a keyboard
to get into a recovery but it didn't work. I am not a heavy software guy
so if there is someway of getting this to work again I would need
a step by step guide. Video even better.

Thank you,
Ken
For tank the fireOS doesn't matter.
In case it isn't a late stick, the OP will work...
 

veerjaicna

New member
Nov 24, 2022
3
1
FireISO is a live linux distro with a patched kernel (its a system rescue disk) you can use any other distro.
All the steps are to be done using a computer (the unlock script i.e. bootrom-step.sh is to be done on linux, others can be done on any OS)

When you run the unlock script all the info will be displayed on the terminal.
When you run fastboot-step.sh its output will also be displayed in terminal.
To check if your stick is in fastboot mode you can type
fastboot devices

You can boot into recovery using fastboot
fastboot reboot recovery

When you are in TWRP you can do whatever you like. To check if your device is in recovery type
adb devices

you can perform any operation in there like

adb push file.zip /sdcard/

To push files to stick

Then to install

adb shell twrp install /sdcard/file.zip

You can find twrp commanline on the net

(The above mentioned steps can be performed only by shorting your stick)

To boot into TWRP from the system you can type

adb reboot recovery
(You will have to do everything via commandline)

Or if you want to use a mouse then just connect it via otg and you can navigate TWRP normally.

I cannot provide you any info about any rom/kernel.
But you can flash magisk using TWRP (do not update it in the system)
Use older version like 20.4 (latest version will have magiskhide removed)
Help please
[email protected]:/home/niranjan/Downloads/amonet-tank-v1.2.2/amonet# adb push Magisk-v20.4.zip/sdcard/
adb: push requires an argument
[email protected]:/home/niranjan/Downloads/amonet-tank-v1.2.2/amonet#
 

Sumitsingh247

Member
Jul 14, 2020
5
1
Delhi
Read this whole guide before starting.

This is for the 2nd gen Fire TV Stick (tank)

Current relase: amonet-tank-v1.2.2.zip

NOTE: Recent reports indicate a change that disables brom DL-mode
The change seems to have been introduced with devices that where manufactured in December 2019 or later.
The change is unrelated to the software-version and results in the device not showing up as a USB device when shorted.
Unfortunately these devices cannot currently be unlocked.

NOTE: If you are on version 1.0, don't update to 1.2.1 through TWRP, as there is a bug.
NOTE: This issue has been fixed in version 1.2.2
NOTE: When updating from version 1.0, don't install anything else before rebooting



To update to the current release if you are already unlocked, just flash the zip in TWRP.

What you need:
  • A Linux installation or live-system
  • A micro-USB cable
  • Something conductive (paperclip, tweezers etc)
  • Something to open the stick.


NOTE: Ideally you want to update your system to 5.2.6.9 before starting this process, since this flashes the 5.2.6.8 boot.img and people have reported issues with adb-authorization with older firmware.
Since version 1.2 this isn't required, because instead of flashing the 5.2.6.9 boot.img, your existing boot.img will be patched.
It is still recommended to first update to 5.2.6.9


Install python3, PySerial, adb and fastboot. For Debian/Ubuntu something like this should work:
Code:
sudo apt update
sudo add-apt-repository universe
sudo apt install python3 python3-serial android-tools-adb android-tools-fastboot

Make sure ModemManager is disabled or uninstalled:
Code:
sudo systemctl stop ModemManager
sudo systemctl disable ModemManager


NOTE: If you have issues running the scripts, you might have to run them using sudo.
Also try using different USB-ports (preferably USB-2.0-ports)


1. Extract the attached zip-file "amonet-tank-v1.2.2.zip" and open a terminal in that directory.
2. start the script:
Code:
./bootrom-step.sh

It should now say Waiting for bootrom.

Short CLK to GND (The metal shielding is also GND) according to the attached photo and plug it in.


NOTE:

In lsusb the boot-rom shows up as:
Code:
Bus 002 Device 013: ID [b]0e8d:0003[/b] MediaTek Inc. MT6227 phone

If it shows up as:
Code:
Bus 002 Device 014: ID [b]0e8d:2000[/b] MediaTek Inc. MT65xx Preloader
instead, you are in preloader-mode, try again.

dmesg lists the correct device as:
Code:
[ 6383.962057] usb 2-2: New USB device found, idVendor=[b]0e8d[/b], idProduct=[b]0003[/b], bcdDevice= 1.00


4. When the script asks you to remove the short, remove the short and press enter.

5. Wait for the script to finish.
If it stalls at some point, stop it and restart the process from step 2.

6. Your device should now reboot into unlocked fastboot state.

7. Run
Code:
./fastboot-step.sh

8. Wait for the device to reboot into TWRP.

9. Use TWRP to flash custom ROM, Magisk etc.


NOTE:
Only ever flash boot/recovery images using TWRP, if you use FlashFire or other methods that are not aware of the exploit,
your device will likely not boot anymore (unless you flashed a signed image).
TWRP will patch recovery/boot-images on the fly.

NOTE:
This process does not disable OTA or does any other modifications to your system.
You will have to do that according to the other guides in this forum.



Very special thanks to @xyz` for making all this possible and putting up with the countless questions I have asked, helping me finish this.
Thanks to @hwmod for doing initial investigations and providing the attached image.
I tried everything and everyprocess but some how not able to get into process where it start running script.
I connect USB to my laptop run the command and with sefty pin with wire connect one point CLK and another point GND nothing happened i tried multiple times. I am running os 5.2.9.2 in my fire stick 2nd gen. Plz help i really want to get rid of tata binge.
 

Ayush_45

New member
Dec 1, 2022
4
0
Mine short was successful, but fastboot is not happening.
Sometimes an error comes and sometimes it shows waiting for device.
Please help🙏🙏
 

Ayush_45

New member
Dec 1, 2022
4
0
I tried everything and everyprocess but some how not able to get into process where it start running script.
I connect USB to my laptop run the command and with sefty pin with wire connect one point CLK and another point GND nothing happened i tried multiple times. I am running os 5.2.9.2 in my fire stick 2nd gen. Plz help i really want to get rid of tata binge.
Do one thing, take a paperclip metal one, adjust it in such a way that it touchs clock pin and male hdmi port of fire stick and hold it with a cloth pin. It just worked for me
 
Last edited:
I tried everything and everyprocess but some how not able to get into process where it start running script.
I connect USB to my laptop run the command and with sefty pin with wire connect one point CLK and another point GND nothing happened i tried multiple times. I am running os 5.2.9.2 in my fire stick 2nd gen. Plz help i really want to get rid of tata binge.
To get rid of tatasky binge you have to install :ineage OS as tatasky app is tied to the device serial and when setup process is happening it kicks in no matter what.

Regards
 

Ayush_45

New member
Dec 1, 2022
4
0
the recovery mode is added successfully, but i am unable to transfer rom to sdcard.
It gives adb push error, read only file.
please help🙏🙏
 

TimmyP

Senior Member
Mar 5, 2008
374
73
Gets stuck at "unable to update" screen even after flash of custom image and magisk via abd twrp shell after root procedure which is all successful. Anyone know what is going on? It all flashes, if I hard wipe with remote it even shows twrp script for rewipe, but I have way to reboot into twrp because I have no way to get into os and settings.

Does not show shortcut when OTG is plugged in. Ive done plenty others okay but that was years ago.
 

Sus_i

Senior Member
Apr 9, 2013
1,858
811
Gets stuck at "unable to update" screen even after flash of custom image and magisk via abd twrp shell after root procedure which is all successful. Anyone know what is going on? It all flashes, if I hard wipe with remote it even shows twrp script for rewipe, but I have way to reboot into twrp because I have no way to get into os and settings.
What is the issue, the OS doesn't boot and/or you can't boot TWRP?
Does not show shortcut when OTG is plugged in. Ive done plenty others okay but that was years ago.
The bootmenu doesn't show up if the OTG cable is connected?
Are you sure it isn't a power supply issue?
 

TimmyP

Senior Member
Mar 5, 2008
374
73
I dont know really. The script ran fine (done it many times before on tanks and 4ks), the second script ran fine, ended up in recovery like usual, pushed rom and magisk to stick via adb, wiped, flashed both via twrp adb command line which took awhile and had no error...

Restart stick and it boots to setup, connect to internet, ends up at "unable to update fire stick" screen. If I perform a soft wipe with remote, I can see twrp running a small script on restart that says its wiping. Boots to same thing.

OTG doesnt show anything if its plugged in. Works great on both my sticks one is 4k and one is tank, both rooted. This was for a friend. It was the same on 2 sticks. Both most likely updated as far as they could go before root attempt.

*Before I tried to root, they ended up at the same "unable to update" screen. I wonder if Amazon blacklisted them or something.
 

Sus_i

Senior Member
Apr 9, 2013
1,858
811
Restart stick and it boots to setup, connect to internet, ends up at "unable to update fire stick" screen. If I perform a soft wipe with remote, I can see twrp running a small script on restart that says its wiping. Boots to same thing.
Try to skip the whole update:
*Before I tried to root, they ended up at the same "unable to update" screen. I wonder if Amazon blacklisted them or something.
Sounds like blacklisted. Lets see how far the stick boots if you skip the update.
In case that won't work properly , if the stock launcher nags somehow, or if prime video plays nothing, you can switch to a custom launcher as a workaround.
 
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  • 67
    Read this whole guide before starting.

    This is for the 2nd gen Fire TV Stick (tank)

    Current relase: amonet-tank-v1.2.2.zip

    NOTE: Recent reports indicate a change that disables brom DL-mode
    The change seems to have been introduced with devices that where manufactured in December 2019 or later.
    The change is unrelated to the software-version and results in the device not showing up as a USB device when shorted.
    Unfortunately these devices cannot currently be unlocked.

    NOTE: If you are on version 1.0, don't update to 1.2.1 through TWRP, as there is a bug.
    NOTE: This issue has been fixed in version 1.2.2
    NOTE: When updating from version 1.0, don't install anything else before rebooting



    To update to the current release if you are already unlocked, just flash the zip in TWRP.

    What you need:
    • A Linux installation or live-system
    • A micro-USB cable
    • Something conductive (paperclip, tweezers etc)
    • Something to open the stick.


    NOTE: Ideally you want to update your system to 5.2.6.9 before starting this process, since this flashes the 5.2.6.8 boot.img and people have reported issues with adb-authorization with older firmware.
    Since version 1.2 this isn't required, because instead of flashing the 5.2.6.9 boot.img, your existing boot.img will be patched.
    It is still recommended to first update to 5.2.6.9


    Install python3, PySerial, adb and fastboot. For Debian/Ubuntu something like this should work:
    Code:
    sudo apt update
    sudo add-apt-repository universe
    sudo apt install python3 python3-serial android-tools-adb android-tools-fastboot

    Make sure ModemManager is disabled or uninstalled:
    Code:
    sudo systemctl stop ModemManager
    sudo systemctl disable ModemManager


    NOTE: If you have issues running the scripts, you might have to run them using sudo.
    Also try using different USB-ports (preferably USB-2.0-ports)


    1. Extract the attached zip-file "amonet-tank-v1.2.2.zip" and open a terminal in that directory.
    2. start the script:
    Code:
    ./bootrom-step.sh

    It should now say Waiting for bootrom.

    Short CLK to GND (The metal shielding is also GND) according to the attached photo and plug it in.


    NOTE:

    In lsusb the boot-rom shows up as:
    Code:
    Bus 002 Device 013: ID [b]0e8d:0003[/b] MediaTek Inc. MT6227 phone

    If it shows up as:
    Code:
    Bus 002 Device 014: ID [b]0e8d:2000[/b] MediaTek Inc. MT65xx Preloader
    instead, you are in preloader-mode, try again.

    dmesg lists the correct device as:
    Code:
    [ 6383.962057] usb 2-2: New USB device found, idVendor=[b]0e8d[/b], idProduct=[b]0003[/b], bcdDevice= 1.00


    4. When the script asks you to remove the short, remove the short and press enter.

    5. Wait for the script to finish.
    If it stalls at some point, stop it and restart the process from step 2.

    6. Your device should now reboot into unlocked fastboot state.

    7. Run
    Code:
    ./fastboot-step.sh

    8. Wait for the device to reboot into TWRP.

    9. Use TWRP to flash custom ROM, Magisk etc.


    NOTE:
    Only ever flash boot/recovery images using TWRP, if you use FlashFire or other methods that are not aware of the exploit,
    your device will likely not boot anymore (unless you flashed a signed image).
    TWRP will patch recovery/boot-images on the fly.


    NOTE:
    This process does not disable OTA or does any other modifications to your system.
    You will have to do that according to the other guides in this forum.


    Very special thanks to @xyz` for making all this possible and putting up with the countless questions I have asked, helping me finish this.
    Thanks to @hwmod for doing initial investigations and providing the attached image.
    12
    There are three options for interacting with TWRP:
    1. A mouse via USB-OTG
    2. TWRP commandline via adb: https://twrp.me/faq/openrecoveryscript.html
    3. Via /cache/recovery/command

    Example for /cache/recovery/command:
    Code:
    echo "--update_package=/path/to/zipfile" > /cache/recovery/command
    echo "--wipe_cache" >> /cache/recovery/command
    reboot recovery

    Should you somehow end in a bootloop you can boot into hacked fastboot or recovery using.
    Code:
    sudo ./boot-fastboot.sh

    Code:
    sudo ./boot-recovery.sh

    NOTE:This will only work if the boot-exploit is still there.

    Source Code:
    https://github.com/chaosmaster/amonet
    https://github.com/chaosmaster/android_bootable_recovery
    9
    Changelog

    Version 1.2 (25.03.2019)
    • Update TWRP to twrp-9.0 sources
    • Implement downgrade-protection for LK/PL/TZ
    • Add scripts to enter fastboot/recovery in case of bootloop
    • Automatically restore boot-patch when you boot into recovery

    Features.

    • Hacked fastboot mode lets you use all fastboot commands (flash etc).
    • Boots custom/unsigned kernel-images (need to be patched)
    • For the devs: sets printk.disable_uart=0 (enables debug-output over UART).
    • TWRP protects from accidental lk/preloader/tz downgrades
    • Set bootmode via preloader

    NOTE: Hacked fastboot can be reached via TWRP.

    NOTE: Hacked fastboot won't patch your boot/recovery-images, so you can easily go back to stock.
    Use TWRP for autopatching.
    8
    Please read the instructions k4y0z wrote (1st page), then read the extra info below. It was my first time rooting a FireTV Stick via hardware and I had a lot of questions. Although, most answered via post replies throughout this thread. Here is a descriptive version of the rooting process for other beginners from what I learned.

    Any damages or issues resulting from rooting your own device falls on you!

    EDIT: I know this is long, but if you are a beginner DO NOT SKIM THROUGH.

    A Linux operating system is required. Ubuntu 19.04 is recommended and the following instructions are for Debian based systems like Ubuntu.

    The following packages were used (Check for updates):
    Amonet-tank-v1.2.2
    tank-5.2.6.9-rooted_r1
    Magisk-v19.2
    Everything was saved to the Downloads folder.

    Step 0: Open the FireTV Stick
    1. Use a plastic tool like an unused credit card. With a bit of force push the plastic tool into the edge (seam) of the FireTV Stick while slightly popping the side wall outwards until a snap. Continue on all sides until the plastic shell can be separated. Then, remove the motherboard. Disassembly video - Link
    2. On the side with the smaller metal shield, use a thin blunt knife or flathead. Start near the HDMI port above and below the black pad. There are small gaps that can be used to push the metal shield up. Continue around the metal shield until it is removed. Be careful not to scratch the board and leave the metal rim.
    3. Attach the micro USB cable to the FireTV Stick but not to a computer!
    4. Extract “amonet-tank-v1.2.2.zip” in the Downloads folder and open a Terminal on a Linux system.

    Step 1: Update Ubuntu
    Code:
    sudo apt update && sudo apt upgrade -y

    Step 2: Install Dependencies (Ignore if Android Studio is installed)
    Code:
    sudo apt install python3 python3-serial android-tools-adb android-tools-fastboot

    Step 3: Stop and Disable ModemManager
    Code:
    sudo systemctl stop ModemManager
    sudo systemctl disable ModemManager

    Step 4: Short CLK to GND (Please read k4y0z instructions as well)
    1. Navigate to script directory:
      Code:
      cd ~/Downloads/amonet-tank-v1.2.2/amonet/
    2. Start the script:
      Code:
      sudo bash bootrom-step.sh
    3. When the Terminal prompt says "waiting for bootrom" (Easiest with two people)
    4. Place the removed metal shield next to the disassembled FireTV Stick. If it doesn't short, then use k4y0z suggested GND method.
    5. Use a paperclip (etc), and lightly touch the bottom metal piece of the CLK to the metal shield (CLK location, but use metal shield as GND). The CLK is tiny so be careful.
    6. Plug the USB cable connected to the FireTV Stick into the computer while holding the short!!! When I did it, I accidentally lost the short but it still worked (uncommon).
    7. The Terminal prompt will say when to "remove the short and press enter".
    8. Wait until the script finishes. If the script stalls, unplug USB and start the script again and short.
    9. Run fastboot script:
      Code:
      sudo bash fastboot-step.sh
    10. Next step has instructions.

    Step 5: Using Fastboot to install Roms and Magisk
    1. Wait for the FireStick to reboot into TWRP
    2. Push Tank’s prerooted rom zip file onto the FireTV Stick sd card:
      Code:
      adb push ~/Downloads/tank-5.2.6.9-rooted_r1.zip /sdcard/
    3. Push Magisk zip file:
      Code:
      adb push ~/Downloads/Magisk-v19.2.zip /sdcard/
    4. Go into ADB Shell:
      Code:
      adb shell
    5. Install rom:
      Code:
      twrp install /sdcard/tank-5.2.6.9-rooted_r1.zip
    6. Install Magisk:
      Code:
      twrp install /sdcard/Magisk-v19.2.zip
    7. EDIT: STOP! DO NOT WIPE ANYTHING OTHER THEN WHAT WAS STATED OR SKIP WIPING ENTIRELY IF YOU'RE A BEGINNER! You can skip wiping and reboot (#9 & #10) or decide if you want to wipe the cache and dalvik only (advanced):
      Code:
      twrp wipe cache
    8. Code:
      twrp wipe dalvik
    9. Code:
      reboot -p
    10. Unplug USB and plug the disassembled FireTV Stick into a monitor or TV. Use the power brick and handle with care.
    11. The "Optimizing Storage" screen will display and will take 10 minutes to complete.

    Optimizing Storage Screen Hangs Issue*
    Try plugging the FireTV Stick's USB to a different power brick temporarily.

    Otherwise and unfortunately, the following instructions will erase your apps and will force you to re-register your FireTV Stick.
    1. Unplug the FireTV Stick USB from the power brick only and open a Terminal window.
    2. Navigate to script directory:
      Code:
      cd ~/Downloads/amonet-tank-v1.2.2/amonet/
    3. Run the boot recovery script to boot into twrp:
      Code:
      sudo bash boot-recovery.sh
    4. When the Terminal prompt says "Waiting for preloader", plug the USB into the computer.
    5. Go into ADB Shell:
      Code:
      adb shell
    6. Code:
      twrp wipe data
    7. Code:
      twrp wipe cache
    8. Code:
      twrp wipe dalvik
    9. Install rom:
      Code:
      twrp install /sdcard/tank-5.2.6.9-rooted_r1.zip
    10. Install Magisk:
      Code:
      twrp install /sdcard/Magisk-v19.2.zip
    11. Code:
      reboot -p
    12. Plug FireTV Stick into a TV or Monitor and wait for the "Optimizing Storage" screen to finish and re-register your device.

    TWRP Can Be Accessed Anytime via Boot Recovery Script*
    Run the boot-recovery script and plug the FireTV Stick into the computer.

    How to backup TWRP**
    I haven't made a backup yet via the command line. But I assume it would go as follow and if anyone wants to help, please do.
    1. Unplug the FireTV Stick USB from the power brick only and open a Terminal window.
    2. Navigate to script directory:
      Code:
      cd ~/Downloads/amonet-tank-v1.2.2/amonet/
    3. Run the boot recovery script to boot into twrp:
      Code:
      sudo bash boot-recovery.sh
    4. When the Terminal prompt says "Waiting for preloader", plug the USB into the computer.
    5. Go into ADB Shell:
      Code:
      adb shell
    6. Create a TWRP backup (everything):
      Code:
      twrp backup twrp
      OR here is a list of partitions that can be backed up.

    Here is a list of bloatware to disable***
    Be extremely careful. Disabling the wrong thing can break your FireTV Stick! - Link

    1. Enable ADB debugging via FireTV Stick Settings and get the ip address under About.
    2. Connect to the FireTV Stick via Wifi:
      Code:
      adb kill-server
      adb start-server
      adb connect <ip-address>:5555 # Grant access via prompt on TV or monitor.
      adb shell
      su
    3. If su command does not work in shell, then open Magisk app and grant root access to shell (in sidebar menu).
    4. Disable bloat as shown in the link above. Be careful!!
    5
    I have not ported my bootmenu recovery to this device yet. I'll try to work on getting the device added to my build system and see what I can put together. Unfortunately I don't have any time this weekend, I'll see if I can get something going next weekend.