Bricked Fastboot - Shield Android TV Q&A, Help & Troubleshooting

***FIXED***
Update:
I was able to resolve this, here is what I've done in case others happen to have the same issue:
Turn on computer volume, reason being I had mine off and even though it appeared to skip over fastboot with the OTG method, it in fact was enabling for a sec or 2 then moving on as I could hear the USB connection chime.
NOTE: I had to press and hold to the LEFT of the Nvidia symbol until I heard the USB pick up chime, once I heard the chime I released my finger.
Prior to plugging in the power cord, I ran "fastboot boot <yourfilename.img>" and it sits at waiting for device...
Device took it and booted me into TWRP, I then flashed the Unofficial TWRP for the SATV, by choosing Image, then finding the .img that I already had on the internal storage
Rooted with SU, rebooted system and everything is now good to go.
Root, custom recovery and also Fastboot stock menu is back.
---------------------------------------------------------------------------------------------FIXED------------------------------------------------------------------------------------------------------------------
Hello All,
Long time lurker, now reaching out.
Just looking for a little help with my SATV Pro 500gb.
Here is the background:
Out of the box today, booted up and enabled ADB and jumped into fastboot for the bootloader unlock
Process took about 2 hours as the info said it would. Device rebooted, perfect working order.
Decided to flash TWRP for SU install along with possible custom roms, etc.
used this tool:
http://forum.xda-developers.com/shi...l-windroid-universal-android-toolkit-t3291266
Device said "please wait...." in fastboot screen, appeared finished and device rebooted into the the OS.
Here is the problem:
I go into command and adb reboot-bootloader, device reboots, I see the Nvidia logo and it boots into the OS, skips right over Fastboot
Shut it down, attempt the OTG, power cord ~3 secs over and over, hangs at logo and then boots in to the OS.
I reset the device, hoping the recovery OS would reflash the fastboot image, appears not to be the case.
Currently I am stuck with no fastboot access, device boots to OS no problems, but as far as fastboot is concerned I cannot access. Appears something went wrong with using that 1 click tool for flashing recovery.
Now before anyone chimes in, adb reboot-bootloader will not boot into fastboot and I've attempted the HW method listed on Nvidias dev site. Its 100% nogo.
Current State of device:
No fastboot
OS boots no problems
ADB works
No Root
Thanks for everyones look and help!

Related

Stuck on Bootloop & FirstAid kit won't help. Any Ideas? Please Help

Hello everyone!
Okay, so I'll try to keep it as short as possible but with the most information I can give ofc.
So here's what I did with my Oneplus 2:
- unlocked bootloader
- flashed custom recovery (twrp)
- flashed superSU.zip
- flashed xposed.zip
- used it for about half a year if not even longer
everything on Lollipop 5.1 stock rom so xposed would work.
Everything was fine but some day when I wanted to enter twrp recovery it didn't work. (I swear, this is the most illogical thing ever but I DID NOT CHANGE A THING!)
I tried to enter recovery via fastboot but that didn't work either.
So I reflashed latest TWRP recovery.img for OP2 via fastboot.
When I pressed power + vol. down to see if it'd work nothing happened.
When I tried to enter recovery when my system was booted via power button->restart->recovery my phone got stuck in a bootloop.
I had to go in fastboot mode to enter "fastboot continue" in order to get my phone booting normal again.
Then, one night when my phone was in my pocket it vibrated and got stuck in the bootloop again, even though it was booted into system and locked last time I used it (minutes before that).
I had no access to a computer at that moment so I had to wait for a few days.
Now when I boot my phone in fastboot mode and try to enter "fastboot continue" on my cmd nothing happens with my phone and cmd says "(command write failed (Unknown error))" even though "fastboot devices" shows that my device is connected properly.
I also tried:
- the FirstAidKit, copied the Win Files in my fastboot directory and started the firstaid.bat but it stops on "fastboot flash boot boot.img" (I waited for like two hours).
- a different USB port (USB 3 and USB 2)
I am kinda depending on my phone so yeah..
If someone knows how to fix this I would be very grateful.
Have a good day/night
SoulSnatcher
Do you have a backup??
If yes, download the latest official OS from Oneplus and the stock recovery. Flash the stock recovery. Try rebooting into stock recovery. If it succeeds, wipe everything and flash OS via adb sideload.
Honestly, I can't guess what went wrong with your device. Maybe it could've been some app which crashed the entire system.
AJay27 said:
Flash the stock recovery.
Click to expand...
Click to collapse
Same problem as with the FirstAidKit:
"fastboot devices" does display the device but "fastboot flash recovery recovery.img" doesn't do anything (I waited for 1h just to make sure).
I'll try this Mega Unbrick Guide for A Hard Bricked OnePlus 2 next, even though I can get into fastboot but since it doesn't do s**t I'll have to give it a try. I mean, what's the worst thing that could happen? That my phone gets bricked?!
Haha.... hmm.
I'll keep the person(s) updated who care to know what's happening.
Cheers
fml

Bricked my device. Oops...

Hey all.
I've looked far and wide and cannot find a solution for my phone. I was following this tutorial (Sorry can't post links)(Unlock Bootloader, Install TWRP and Root ZTE Axon 7 (A2017G) Droidviews) and got all the way to unlocking my bootloader. Did all the steps correctly but when I clicked start on my unlocked bootloader it went to the ZTE logo and never actually started. I then held the power button down until the device restarted and went into twrp and tried installing lineage and gapps because somewhere I read that someone fixed this problem by installing an update.zip file for nougat 7.0. I used this tutorial (Again cannot post links)(How to Install Lineage OS 14.1 on ZTE Axon 7 Droidviews) to install lineage. Needless to say that did not work and my device was stick stuck in the ZTE logo so I went back into twrp and tried installing the update.zip file for B11. Now my device goes past the ZTE logo but then goes to the bootloader. When I click the power button to boot a Linux symbol appears on my screen and will not leave until I hold the power button for 20 seconds or so, then it goes into what I assume is the default axon 7 recovery. It has a few options such as; reboot device, reboot into bootloader, update via microSD card, update via ADB. When I try to reboot noramlly or to bootloader the previous Linux screen happens. I can't use any commands on ADB aside from sideload and am kinda stuck. Any help would be very much thanked...
P.S. all this has happened on my A2017G that was running Nougat 7.0 B11.
FOUND A SOLUTION!!!
Because I wasn't able to use adb or fastboot in the bootloader or the recovery mode that inbuilt into the phone, I had to instead go into factory test mode by powering on the device whilst holding the power down button, it took a few tries and I kept accidently going into the bootloader instead but eventually I got it. Then you can connect your phone to adb and run the command "adb reboot edl" after that use "axon7tools -w recovery". This didn't work at first for me because I was using an older version of TWRP. After a heap of frustration I finally tried downloading the newest version and voila! It worked. From there I was able to go into TWRP recovery and unlock my bootloader and then finally reboot my phone. Lots of stress but glad I found a solution.
I don't think anyone has posted that adb works in the test menu. good to know.

Problems booting into recovery

Okay, to start with, I've read the other threads about this. I understand the process that *should* work:
1. Power off.
2. Then, press and hold both all Volume Down + Power buttons at the same time until the LG Logo is being displayed on your LG V20.
3. Now, release the keys and press the above combination again however, this time you should wait until recovery mode menu is displayed.
...and I've tried the version where you keep holding the Volume Down button the entire time.
So, yes, I've reached the white screen where it asks you if you want to do a factory reset. I've hit "Yes" to both questions. The problem is that it really does a factory reset then.
---
After unlocking the bootloader, I installed TWRP via fastboot:
adb reboot bootloader
fastboot flash recovery twrp.img
fastboot reboot
...everything went fine.
But I can't get into recovery. And since I'm waiting to have TWRP working so that I can flash root, I can't boot into recovery via an app.
What did I do wrong?
EDIT:
Okay, it looks like TWRP isn't working properly. I tried "adb reboot recovery" and that got me to a dead Android icon and a "No command" message. I have no idea why TWRP isn't working.
Haphim said:
Okay, to start with, I've read the other threads about this. I understand the process that *should* work:
1. Power off.
2. Then, press and hold both all Volume Down + Power buttons at the same time until the LG Logo is being displayed on your LG V20.
3. Now, release the keys and press the above combination again however, this time you should wait until recovery mode menu is displayed.
...and I've tried the version where you keep holding the Volume Down button the entire time.
So, yes, I've reached the white screen where it asks you if you want to do a factory reset. I've hit "Yes" to both questions. The problem is that it really does a factory reset then.
---
After unlocking the bootloader, I installed TWRP via fastboot:
adb reboot bootloader
fastboot flash recovery twrp.img
fastboot reboot
...everything went fine.
But I can't get into recovery. And since I'm waiting to have TWRP working so that I can flash root, I can't boot into recovery via an app.
What did I do wrong?
EDIT:
Okay, it looks like TWRP isn't working properly. I tried "adb reboot recovery" and that got me to a dead Android icon and a "No command" message. I have no idea why TWRP isn't working.
Click to expand...
Click to collapse
to confirm, have you verified you are using the correct TWRP version for your V20?
in this step "fastboot flash recovery twrp.img" is your twrp image that you saved, named twrp.img? If its not, that command won't work correctly.
usually after I flash recovery, when still in the recovery menu, i choose reboot recovery just to make sure it did stick. If it reboots back to itself, then try rebooting the device, and again confirm with manually entering recovery. Maybe overkill but it works for me LOL.
Good luck!
I am in need of big help! I made a critical error after days of trying to navigate the minefields of rooting my device. I have a LG V20 h910 and it is no one-click wonder root. It made me work for it and I finally got it. I loaded LineageOS 14.1 and all was good until the USB OTG cable from my PS4 controller did not register anymore. Damn, that was a let down, and probably led to my careless move of needing to downgrade my TWRP, saw the version I needed, forgot these are device specific, and now I'm stuck in a hard place.
Perhaps the fix is easy, but I have not found the answer after many, many searches...
I had TWRP 3.2.1-2 and needed to downgrade to 3.2.1-0 to try SuperRom (hoping it would have OTG ability). I hastily grabbed the first TWRP 3.2.1-0, threw it on the SD card, wiped everything except internal storage, and flashed the img, and did a reboot. Road block went up.
I tried getting back into recovery, did the PWR and DOWN pressing combo and got the Factory Reset screen, but after clicking "Yes" to both, instead of getting the TWRP screen, I got this error screen (attached).
I tried another idea - hooked it up USB to my PC and tried accessing it via adb/fastboot. I tried multiple drivers for my device, but no adb and no fastboot devices were ever found. The only thing that almost worked was booting phone into FASTBOOT mode by holding DOWN btn and plugging in a USB cable attached to PC. Once in FASTBOOT mode, My PC at least saw the ID for fastboot device. I tried to flash TWRP via fastboot, and it looked like it would happen, but in the end there was no phone screen response to my attempt, and the cmd window on my PC would get stuck and just hang.
Can someone please advise me on how I can fix this problem?

Unable to enter fastboot mode after flashing

I have unlocked my phone, hoping to find a fix to USB external camera not being recognized. As a consequence, I am not able to update my system through OTA. Moreover, I am no longer able to enter fastboot mode. Whatever key combination I tried, my phone will do a normal boot. When I power up or I press volume - I only end up doing a normal boot or powering off. If I press all 3 keys together I get into the e-recovery boot, which fails. I have only been able to boot into TWRP after downloading a system update and choosing to install it. With this procedure, the update will not be installed, but I will boot into TWRP. From here, if I choose recovery, I do boot into fastboot, but my fastboot is not recognized by my computer, as it was before. Running either ADB or Fastboot will not reveal any device connected.
pieemme said:
I have unlocked my phone, hoping to find a fix to USB external camera not being recognized. As a consequence, I am not able to update my system through OTA. Moreover, I am no longer able to enter fastboot mode. Whatever key combination I tried, my phone will do a normal boot. When I power up or I press volume - I only end up doing a normal boot or powering off. If I press all 3 keys together I get into the e-recovery boot, which fails. I have only been able to boot into TWRP after downloading a system update and choosing to install it. With this procedure, the update will not be installed, but I will boot into TWRP. From here, if I choose recovery, I do boot into fastboot, but my fastboot is not recognized by my computer, as it was before. Running either ADB or Fastboot will not reveal any device connected.
Click to expand...
Click to collapse
When you use key combinations, you must shutdown your phone first, not reboot or you can boot into system, make sure that usb debugging is turned on, open adb and type "adb reboot bootloader".
DeathBell said:
When you use key combinations, you must shutdown your phone first, not reboot or you can boot into system, make sure that usb debugging is turned on, open adb and type "adb reboot bootloader".
Click to expand...
Click to collapse
Thanks, I followed your instructions but with no success. As soon as I plug into USB it will power on and go on with a normal system boot, no matter how quick I am in typing the command "adb reboot bootloader", which invariably returns "no devices/emulators found", or whether I press the volume - button or not. This also happens when I am in the charging screen (not sure whether this also equals power off).
pieemme said:
Thanks, I followed your instructions but with no success. As soon as I plug into USB it will power on and go on with a normal system boot, no matter how quick I am in typing the command "adb reboot bootloader", which invariably returns "no devices/emulators found", or whether I press the volume - button or not. This also happens when I am in the charging screen (not sure whether this also equals power off).
Click to expand...
Click to collapse
No, you need to boot to Android to use adb.
Is your device bricked or stuck in a bootloop or something?
DeathBell said:
No, you need to boot to Android to use adb.
Is your device bricked or stuck in a bootloop or something?
Click to expand...
Click to collapse
I wouldn’t call it properly bricked, inasmuch as it is actually doing its job. However, It does some strange things: it gets the OTA updates, but when I click on Download and Install, it restarts in the TWRP menu (which I cannot otherwise access. I have 2 TWRP apps installed, which don’t seem to be of any use: official TWRP App and TWRP Manager). When I am in the TWRP menu, I can choose to restart in the bootloader. However, once there, with the green window telling me that my phone is flashed, the phone is still not detected by ADB or Fastboot commands. I don’t know when the bootloader started to be unaccessible because I left the tinkering a couple of months ago, when I realized that nobody so far has had any success in getting a P10 Lite to work with a USB Endoscope.
pieemme said:
I wouldn’t call it properly bricked, inasmuch as it is actually doing its job. However, It does some strange things: it gets the OTA updates, but when I click on Download and Install, it restarts in the TWRP menu (which I cannot otherwise access. I have 2 TWRP apps installed, which don’t seem to be of any use: official TWRP App and TWRP Manager). When I am in the TWRP menu, I can choose to restart in the bootloader. However, once there, with the green window telling me that my phone is flashed, the phone is still not detected by ADB or Fastboot commands. I don’t know when the bootloader started to be unaccessible because I left the tinkering a couple of months ago, when I realized that nobody so far has had any success in getting a P10 Lite to work with a USB Endoscope.
Click to expand...
Click to collapse
Thats normal behaviour, when you have a custom recovery installed and do anything in the stock recovery then it boots you into the custom recovery, it should also boot to TWRP when you do factory reset in the stock recovery. And when your phone isn't detected by fastboot then its probably a adb and fastboot installation issue on your PC, type "fastboot devices" to see if it detects your device. And what do you even want to do in fastboot?
Also are you in Nougat or Oreo?
DeathBell said:
Thats normal behaviour, when you have a custom recovery installed and do anything in the stock recovery then it boots you into the custom recovery, it should also boot to TWRP when you do factory reset in the stock recovery. And when your phone isn't detected by fastboot then its probably a adb and fastboot installation issue on your PC, type "fastboot devices" to see if it detects your device. And what do you even want to do in fastboot?
Also are you in Nougat or Oreo?
Click to expand...
Click to collapse
I am not too sure to have any working recovery at all, right now. If I press all 3 buttons, I get into the Huawei recovery mode, which fails. I am on EMUI 5.1.1 (Nougat) and would like to install a stock recovery to Oreo. If I am able to get to a working bootloader mode, I would like to install this file which seems to be a stock recovery with Oreo (WARSAW L21C432B182_EU_SERVICE_ANDROIDHOST.RU.RAR). Otherwise, I will buy a MicroSD card reader and try copying this installation to the card, which, according to this video (https://www.youtube.com/watch?v=0vDgDXePAR4&feature=youtu.be) should be the last resort, if everything else fails. I would be perfectly happy to return to a working and updated standard EMUI. I'm told that if I installed the OTA version this would not be working correctly on my my phone. According to an app called Rootchecker, my phone is not properly rooted either, but there are a lot of crappy apps out there, so I don't know what to believe.
BTW: I don't believe there is any problem with my adb fastboot installation (on MacOS). It was working earlier on. When I type "fastboot devices", it returns: "waiting for any device"
pieemme said:
I am not too sure to have any working recovery at all, right now. If I press all 3 buttons, I get into the Huawei recovery mode, which fails. I am on EMUI 5.1.1 (Nougat) and would like to install a stock recovery to Oreo. If I am able to get to a working bootloader mode, I would like to install this file which seems to be a stock recovery with Oreo (WARSAW L21C432B182_EU_SERVICE_ANDROIDHOST.RU.RAR). Otherwise, I will buy a MicroSD card reader and try copying this installation to the card, which, according to this video (https://www.youtube.com/watch?v=0vDgDXePAR4&feature=youtu.be) should be the last resort, if everything else fails. I would be perfectly happy to return to a working and updated standard EMUI. I'm told that if I installed the OTA version this would not be working correctly on my my phone. According to an app called Rootchecker, my phone is not properly rooted either, but there are a lot of crappy apps out there, so I don't know what to believe.
BTW: I don't believe there is any problem with my adb fastboot installation (on MacOS). It was working earlier on. When I type "fastboot devices", it returns: "waiting for any device"
Click to expand...
Click to collapse
I still can't uderstand you. Can you boot into Android or not? And Does TWRP work? When you device is softbricked, what did you do to brick it?
At one point you say that you can access fastboot by choosing reboot to bootloader in TWRP and then you say that you have no working recovery at all.
Anyway I can't help you with the fastboot thing then and that file isn't Oreo it's an old version of Nougat, B360 and up is Oreo and also B321 witch is Oreo Beta. You can only flash image files in fastboot anyway as that file needs to be unpacked and put on the dload folder on your sd card.
When you want to get to Oreo you can either use service roms from this thread https://forum.xda-developers.com/p10-lite/development/service-rom-b362-c432-upgrade-o-o-n-o-t3813946, you need to copy the two zip files into the dload folder in your SD card. You can also use HWOTA but that wouldn't work since fastboot isn't working for whatever reason. Or when your custom recovery is working you can use HuRUpdater. But you need to be on the newest version of Nougat B210 or B209 to update as otherwise you may brick your phone.

Moto E4 (woods) Bootloop

Hi all,
I had recently unlocked my bootloader on my moto e4 (woods), installed twrp, and install magisk, and everything was going smoothly. Until recently, where i had a OTA update for the device. Me not thinking, i installed the update and then my device refused to boot to system, and only rebooted to twrp. I tried everything to get it to boot, but it just didn't.
I today, found on another thread, that you could reinstall the stock firmware onto the device, and followed the instructions, which were basically just running 'fastboot erase ----' and 'fastboot flash ----'. Everything was going well, until i came to system, which failed to install. I then tried restarting the device (because i wasn't thinking properly), and now the device will show the boot screen for approx 10 seconds then loop again. It has the message of ">device unlocked" at the bottom of the screen, and the moto logo and "powered by android writing on it". I have tried to access the recovery and bootloader on the device by using the hardware buttons, but there was no luck when i was doing it. It would just carry on with it's bootloop. I also tried plugging the device into a windows system, and ran 'adb devices', and 'fastboot devices' but nothing was being picked up. I also checked device manager, and no new devices were being shown.
I am 99% sure that i have indeed hard bricked the device, but i am turning to the amazing people of XDA devs for any help or tips that they can give to possibly get the device back and running.
Anything will be useful, since i can't make the device any less usable now anyway.
Thank you to anyone that replies
just Google the model number and get the original stock firmware and use SP flash tools and the scatter file took a hit to the latest firmware then use fastboot commands to unlock the bootloader flash custom recovery and root the device

Categories

Resources