yashsingh1/xdaforums huggingface dataset:
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, I'll get the USB A to A cable, how does one run the fastboot?

Once I connect the FireTV to my PC using the USB A- A cable, what will happen? do I need to install anything on my Windows 10 to run fastboot?

Update:

OK, dfound out I already have fastboot in my platform-tools folder,

From AFTNews:

Enter the command:

fastboot devices

If your computer has correctly detected your Fire TV, you will see a series of numbers followed by the word “fastboot” after entering the above command.

Download the latest version of ClockworkMod custom recovery from AFTVnews.com/recovery

Rename the file you just downloaded to “recovery.img”

Enter the command:

fastboot flash recovery recovery.img

(Be sure to replacerecovery.img with the full path to the file you just renamed)

Enter the command:

fastboot boot recovery.img

(Be sure to replacerecovery.img with the full path to the file you just renamed)

Your Fire TV should now boot into ClockworkMod recovery. Proceed to follow the steps in the next section below labeled “Resetting with Recovery Mode”.

Resetting with Recovery Mode

If you can successfully enter ClockworkMod recovery, then follow the below steps to reset your Fire TV, regardless of what state it is in and what has been done to it. You can also follow these steps if, for example, you want to update your ROM but aren’t sure if you’ve unlocked your bootloader or aren’t sure if you’ve installed the boot menu.

[OPTIONAL] From within ClockworkMod, select the option to “wipe data/factory reset”. This will delete all of your settings and user data. It is an optional step, but is recommended.

From within ClockworkMod, select the option to “wipe cache partition”.

Follow my guide to install pre-rooted Stock ROM version 51.1.4.0_514006420 updated. Note, you are NOT installing the latest pre-rooted ROM on purpose. Do NOT skip ahead and install the latest pre-rooted ROM.

Restart your Fire TV. You should be able to boot normally.

Follow my guide to install BusyBox.

Follow my guide to unlock your bootloader.

Follow my guide to install the boot menu.

Follow my guide to install the latest pre-rooted ROM.

Do I need to redo all these? I already have TWRP. If I'm to do the above I would end up with both TWRP recovery and ClockworkMod custom recovery, right?

Once done, do I actually install the 51.1.4.0_514006420 updated or 5.2.6.3_r1?

Pardon my ignorance!
[Fire TV Q&A, Help & Troubleshooting] DanielF50:
Yep, bundled with android-sdk so runs just like you'd use adb, but obviously has a different purpose/commands - I should think there would be info on the full bootloader unlock thread on how to use it to recover from a bootloop using fastboot?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
You can try to boot the recovery.img (boot... not flash!)

This means, grab the latest prerooted, extract the recovery.img into the fastboot/adb folder. Check/connect with fastboot devices and run: fastboot boot recovery.img

In case this fails, you may carefully follow the guide you've posted above.
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, will try and report back.

I actually made a copy of "bueller-twrp_3.0.0-7.img", "bootmenu.img" and "recovery.img" which I copied from the FireTV before flashing, I reckon I can use the "recovery.img"?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
I would try to boot bueller-twrp_3.0.0-7.img and recovery.img
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Update 3:

Gosh, I got it to the point of checking for updates and unplugged the internet cable hoping to issue via adb to block OTA, and the FireTV detected no internet connection and asked to unplug the power for a few minutes and I did that, but now no whatsoever light on the FIreTV itself, don't tell me its now dead not because I bricked it the other day, but because of the power unit?

Tested the power adapter with a multimeter, got 6.18V (6.25 is printed on the power adapter), since 6.18V is close to 6.25V, its not the power adapter right?

Update 2:

OK, figured out I could remove the USB A to A cable and use the USB port on the FireTV to connect my Logitech K400 :)! (see, I'm not a very smart person!)

- I deleted "Data"

- Tried to wipe cache and got a message "No OS installed"

- No choice but to select install option and install 5.2.7.2_r1

- Now at least I'm seeing the Colourful Amazon logo again, and now its doing the "Optimizing system storage and applications...", wish me luck!

Update 1:

Just received my USB A to A Male to Male (LOL) cable today.

Don't know to jump for joy or cry!

- When I typed "fastbbot devices", I got exactly from "AFTNews - If your computer has correctly detected your Fire TV, you will see a series of numbers followed by the word “fastboot” after entering the above command.", I got the screen showing me my device/serial number and the word fastboot, so I think its working!

- I then typed "fastboot boot bueller-twrp_3.0.0-7.img" and the white Amazon logo was gone I was back in TWRP screen, but I couldn't do anything, the USB port is already used by the USB A to A cable (USB splitter couldn't work either), I see the mouse pointer, but how to move it to reboot/wipe/install/advance etc?

Mayday, help!
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
:good:

:good:

Pull all the plugs from the box + tv and try again...

6.xx v seems ok. Any voltage drops if you connect a device, light bulb or anything like that?
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Thanks Sus_i.

How to connect the light bulb to test, and connect from where to where?

I couldn't believe what a stupid move I did by pulling the internet cable and now I want to beat myself so bad...:mad:

I've a few power adapters from router/modem etc lying around, will I damage the Fire TV if I'm to try them out?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Have you tried to pull all plugs, reconnect only the power supply... what does the LED?

There is an ifixit guide on how to disassemble the fireTV. In case you open the box, measure the voltage IN inside the fireTV at power on. You can measure VDD 3.3v and VDDQ 1.8v too, next to the emmc, see the picture here.

That shouldn'd harm anything. In case of a failure, the fireTv should blink yellow.

You can test other adapters, someone on this forum said that he used an 5v usb supply, but for a 'stable use' you need a big one... regards the amps...

I think a power supply between 7v to 5v works fine, probably no damages at all.
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, will try to open up the FireTV.

No light/LED when plugging only the power adapter to the FIreTV, already tried different power outlets throughout the house:(

Come to the worst, will this https://xdaforums.com/showpost.php?p=66961740&postcount=676 help?

Thanks again.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Worst case is a broken fireTV.

Don't follow this guide, you lose your unlock... apart from that, the download link from the guide is dead ;)
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, will forget about that!

Once I got the FireTV opened, will take some pixs and report back!
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, here are the pixs.

Now that I look at the Multimeter, I'm not sure I'm using it correctly. Bought this few years ago (just in case I need to test my car's battery).

AT the bottom of the multimeter, there are 3 holes, one red on each side and black hole in the center, which two am I supposed to use?

I tested the power adapter again with multimeter using the center black and red on the right, and I'm reading 4.2V?
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Would it be possible just by looking at the board if its kaput?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
OK. The board looks good, can't see any broken solderings.

For measuring take this setting: The black cable uses the middle COM port, for the red cable take the right (fused) port. At the meter you choose DC Volts (DCV), it's clockwise turned the first one...

If you look at your first picture, you see at the top/left the bottom of the power input plug... First step is to measure the voltage to the ground (shield). If you see 6.x volts, your power supply should be ok.

In case the power supply works, test VDD = 3.3v and VDDQ 1.8v, take the picture from exploiteers in order to find the right condensers (near the usb port, bottom side, next to the EMMC (toshiba chip), for details look at the exploiteers picture I mentioned above). Simply measure both ends of the condenser and you see the voltage.

Don't touch parts with the hands, don't short circuit something, don't use any pressure, be careful, don't break parts from the board ;)
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Thanks, you are a great teacher!

Here are the pixs, am I doing it right?

1st = power adapter

2nd = C175 VDD

3rd = VDDQ (top of C 172)

4th = circled of 2nd and 3rd
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Almost, but you have to measure the other sides, i.e. not the GND side of the condenser ;)
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
You mean using the red probe to touch these two points?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Exact, but don't touch other parts at the same time, i.e. don't short circuit anything arround...
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, I'll be careful not to kill it (short circuit) one more time:D.

I took multiple shots...
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
I assume you touched with the black probe simultaneously a shield somewhere?

Something is definitely up... there should be 3.3 and 1.8 volts.

If you look at the bottom side of the power plug socket (you see the four solderings for the shield), there is one single pad in the middle between the two shield solderings... can you measure this soldered pad?
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, I'll redo the above.

If you look at the bottom side of the power plug socket (you see the four solderings for the shield), there is one single pad in the middle between the two shield solderings... can you measure this soldered pad?

Is this in this pix? if it is, please tell me which part/point to touch.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Correct place, but the pad is on the bottom side. Turn arround and look for the four solder pads from the powerplug socket housing and you see a single pad in the middle
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
These?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Yes, but you need to measure together with the black probe... i.e. the black one to the shield.

It needs both ones, the black and the red one.
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
As you can tell I'm real bad with electronics:fingers-crossed:, "shield" meaning using the black probe to touch the red probe? If that is correct, the readings would go up and down and finally settled at 0.00?

I saw some sparks?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
No ;)

First, touch with the black one any ground point on the fireTV, such as the big metal shield... or the ring arround the screw holes...

Hold/keep the black one and then touch with the red one the point that you want to measure...
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Like these?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
No. The black one needs to touch ground on the fireTV board, i.e. touch the metal case of the usb port, or the metal case of the power socket. All the silver metal shields on the board are ground. The yellow metal ring arround the drilled srew holes is ground too.
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Thanks for being so patience with me:D.

Are these OK?

P/s I redo the VDD and VDDQ and I got 2.93 and 1.91/1.92 with the black probe touching the metal on the board.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Thats better. :good:

Now you know that the power input socket/plug is ok and your 6.2v power supply drops down to 5.8v under load.

You may get better/higher readings!? if you measure that point to the shield of the power socket, without a camera/phone in the hand (steady & stabilized connection).

Try this, touch with the black one the GND side from the 2nd... and the VDD side with the red.

Same for the 3rd, VDDQ, the black one to the GND side and the red one to VDDQ side.

This way you get propper voltage readings...

PS: Don't try to take a picture, you need both hands for this^^
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, the 6.2V is 6.14, VDD is 2.93 and VDDQ is 1.82.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
OK. That's fine. :good:

Power supply is ok, also the emmc voltages.

LED is still off?

HDMI shows still nothing?

Can you connect with fastboot?

What happens if you connect your PC via USB a-a cable?
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Good to hear that, at least still got a tiny little bit of hope....

- Yes, LED is OFF

- HDMI shows nothing, blank screen

- Fastboot screen attached

- When connected to PC A to A, PC auto popup this folder with "Image" inside and the "Image" folder has the following files (see attached)

- Windows 10 is seeing the FireTV as an external drive?
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
What happens if you run adb devices instead of fastboot devices?
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Please see attached, no device listed.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
OK. Just for completeness, have you tried another HDMI cable?

Do you have a PC running linux? If not, you can grab an ubuntu live iso and flash it to an usbstick with 'rufus'.

I would connect the fireTV to the ubuntu PC and turn it on.

Then open a terminal (right click on desktop) and run commands like:

mount
df -h
cat /proc/partitions

Best is if you copy/paste all the printed terminal output...
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Yes, tried 3 HDMI cables already!

Someone on the other Xda threat posted fireiso-1.0.0.iso which can be mounted on USB, can I use that? or Ubuntu? (Yes, I know rufus, luckily).

This one? (sorry about the rotation, I'm seeing it straight but xda is turning it side way!)

Screenshots from Ubuntu...
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Ubuntu is better in case you have to install a missing package.

From what you've wrote, I think it isn't possible that the efuse in the fireTV's SOC is burned.

But who knows, maybe a somehow burned efuse prevents the box from booting, then your link is indeed an option...

On your pictures the fireTV shows up as /dev/sdb (sdb1 to sdb20).

You need to extract the image files (mentioned in the guide) out of an update.bin into a folder, open a terminal in this folder and dd (copy) the files to the corresponding partition, like described in the guide from rbox.

dd if=NON-HLOS.bin of=/dev/sdb3
dd if=sbl1.mbn of=/dev/sdb4
dd if=sbl2.mbn of=/dev/sdb5
dd if=sbl3.mbn of=/dev/sdb6
dd if=tz.mbn of=/dev/sdb7
dd if=rpm.mbn of=/dev/sdb8
dd if=emmc_appsboot.mbn of=/dev/sdb9
dd if=boot.img of=/dev/sdb10

You can rename the update.bin file to zip and open it with an archive manager. The boot.img file is in the top level of the bin, all other files in the image folder. Extract all necessary files to a folder on the ubuntu desktop.

A problem is that the mentioned update.bin file is gone. I 'assume' that you can use just the latest update.bin aviable here. I had a quick look into it and all images files are there.

Follow the guide from rbox carefully, remember:
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
I'm totally lost in Linux:angel:.

Plug it in with USB to a LINUX computer and turn it on. It should show up as a hard drive. Make sure to unmount anything that automatically mounted.

In my case, my Linux is on USB, what's the "Plug it in with USB to a Linux computer" is rbox referring to? and how/what to unmount?

The link https://d1s31zyz7dcc2d.cloudfront.n...te-kindle-bueller-51.6.4.8_user_648594820.bin is not doing anything? Just an empty page with security warnings?

I keep old things, lol. In one of my old FireTV folder, I found Official Stock Software from Amazon.com & Stock Recovery from Amazon.com.

Official Stock Software from Amazon.com

bueller-ota-51.1.1.0_user_511069920-signed.bin

bueller-ota-51.1.3.0_user_513011520-signed.bin

Stock Recovery from Amazon.com

recovery-stock-51.1.0.img

recovery-stock-51.1.3.0.img

Can I use any of the above since I couldn't download the bin file from you link.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Yes, ubuntu started from usb live disk is ok.

It means:

Take your usb a-a cable and connect the fireTV to the PC that runs ubuntu. At the same time, plug the fireTV power supply in.

If you type

df -h
mount

you see what partitions are mounted.

If there are sdb3 to sdb10 partitions, you have to run an umount command.

Edit: That link points to the latest update.bin file. Open it with firefox, download the file.

---------- Post added at 10:59 PM ---------- Previous post was at 10:50 PM ----------

Seems that your files are much older than the 5.0.5 file, I would say no.

Download the new bin file with windows if you like, or connect the ubuntu live system to a wifi network ;)

The URL works, 100% :D
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, got the bin file (my router is blocking all updates/downloads from Amazon).

In the meantime, I will go over https://xdaforums.com/showpost.php?p=66961740&postcount=676 multiple times and re-read your instructions above.

Once I'm done, I will type out the line by line instructions and you can tell me yes or no:fingers-crossed:, have a great rest buddy!
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
:good:

The ubuntu usbstick with the iso is probably full and/or write protected, may be you need a second stick for this.

Yeah, do the right click. :good:

No. Open the folder on the desktop with your files, right click in there, open terminal.

Run the df -h and mount command and watch out for sdb entries. If there isn't any trace, none of them is mounted.

In the log above, only sdb2 partition is mounted. If you umount it just at the connect, there should be nothing sdb related in there.

:good:

Yes, with the open terminal running in your folder, run the dd commands line by line. You can call su with sudo just infront of the first dd command, i.e.: sudo su

You can do this if you like, but it should work at the first time.

Yeah, pray :D

You see, from what you've wrote, I think it could be working:

You've already installed the latest prerooted from rbox including bootmenu/twrp, but at the setup with a power unplug things got worse. Maybe the efuse is burned and this prevents the box from booting, the LED is off.

That could be the case, makes sense, but who knows.

It depends, the newer logon setups doesn't allow to finish, in case there is no network. You may try it with blocked updates. If it doesn't finish, you can block the updates with the so called build prop method, i.e. you pull the build.prop file from /system and edit the OS version number, then push it back to the system. Take a look at the guide here. With a edited os version number, you can unblock the update server in the router and finsih the logon setup screen...

As soon the setup is done, enable adb debugging + unknown sources and block the ota updater via adb shell:

adb shell
su
pm disable com.amazon.device.software.ota
pm disable com.amazon.device.software.ota.override
pm disable com.amazon.tv.forcedotaupdater.v2

In case the box starts to download a update package, you can stop/delete it with:

pm clear com.amazon.device.software.ota

Don't forget to grant the adb + su permission, see the pop up screen on the TV...

Good luck ;)
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Welcome back and I sincerely wish that you rested well!

OK, I would issue the "sync" command after those 8 items just before entering the command eject /dev/sdb, right? How to issue the sync command in the 1st place?

What is the command to unmount sdb?

Should my box booted up, do I go into recovery to re-flash (if re-flash, which image? 5.2.6.3_r1 or the latest 5.2.7.2_r1), or the box will continue from its previous attempt to continue setup?

Thanks
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Mayday, everything went well except the last step, eject /dev/sdb - unable to find or open device for /dev/sdb.

OK, I power off my notebook (Ubuntu) and I assumed this would auto unmount all drives....

Still no LED and no boot after power off/on the FireTV?

Connect back the FireTV via A to A to Ubuntu is showing the same exact 8.4 MB drive and SDB1 to SDB20 all there.

Connect the FireTV via A to A to Windows 10 still shows the same "Image" folder with all files just like before?

What gives?

P/s

- Once the FireTV got connected to Ubuntu, I right click and selected safely remove...

- During the first dd if=NON-HLOS.bin of=/dev/sdb3, I got permission denied, but after Sudo su, everything went OK.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
Try all again, but this time don't click safely remove at the fireTV connect, check if only sdb2 is mounted, as sdb2 doesn't matter...

For the last step use: sudo eject /dev/sdb
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Thanks god you are back.....:D, I'll redo this now, please stay with me....thanks!!!
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
Oh my gosh, it boots up now and pairing remote/select language and now saying Unable to update your Fire TV?

Enable updates in my router?

An option to power off a few secs and power back, this is the exact same thing I did (power-off) and bricked my Fire TV in the 1st place, I'm not going to power off this time...

OK, I had to allow the updates via my router (it found some updates...) and everything went well, got it registered again and I immediately block updates via my router again.
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
OK., fine :good:

I hope you do this, in order to disable updates... as the block via router don't work propperly.

Enable adb debugging + unknown sources and block the ota updater via adb shell:

adb shell
su
pm disable com.amazon.device.software.ota
pm disable com.amazon.device.software.ota.override
pm disable com.amazon.tv.forcedotaupdater.v2
pm clear com.amazon.device.software.ota
exit
exit

The pm clear command clears out any downloaded update files...
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, issued

adb shell

su

pm disable com.amazon.device.software.ota

pm disable com.amazon.device.software.ota.override

pm disable com.amazon.tv.forcedotaupdater.v2

pm clear com.amazon.device.software.ota

Its now on 5.2.7.2 (648594820).

Everything seems OK except 80% of the time hitting the back button returns to Home screen instead of previous screen. It also appears that lots of leftover files taking up the storage (2.35 of 5.59 GB Avail), what files/folders can I safely remove via TWRP? I don't mind redo everything as the FireTV is basically fresh.

How could I ever thank you, Sus_i:good::good::good::good::laugh::laugh::laugh: Sus_i = FireTV Professor!
[Fire TV Q&A, Help & Troubleshooting] Sus_i:
You can look at /sdcard for old stuff, with twrp filebrowser or 'adb link' filebrowser. Also you can remove/delete all old twrp backups, as your bootloader should be locked now (and if you restore an old unlocked backup to the fireTV, it bootloops forever).

No problem, I’m glad that your fireTV is ok :good:
[Fire TV Q&A, Help & Troubleshooting] Matt_7:
OK, so now what I can do (as far as installing different launcher to avoid the Home screen/future rbox's pre-rooted rom or scripts to remove Amazon's background processors like photo/music/ etc) or what I can not do going forwards?

Apparently, I still have Su (limited, I guess) and TWRP, how to show my bootloader status, I know it should be locked now, but just want to list/show.

Can I do this "Customizing the Fire TV Stick 4K (mantis) - Debloat - Replace launcher and Testing" https://xdaforums.com/fire-tv/general/customizing-fire-tv-stick-4k-mantis-t4025723 or "FTVLaunchX: custom launcher, no root (replacement for LauncherHijack)" https://xdaforums.com/fire-tv/general/ftvlaunchx-custom-launcher-root-t4037397.