Bricked Lenovo A7600-f, stuck at booting. How to recover system? - Android Q&A, Help & Troubleshooting

Hi.
Unfortunately i flashed a Android OS system software, while tablet was rooted. It failed. So now I cannot boot into recovery on it A7600-f. My PC computer will not find the tablet when connecting with a USB cable. System will not load on the tablet. It will not go into recovery either when I press "Power+volume up" and choose recovery. Only option is to go into fastboot. However it does not work proberly either! So I think it's lost, or do you know how to solve this?
I have also tried SP Flash tool, but again the tablet is never recognized
However when I go in to fastboot by holding "Power +volume up" down, I write: fastbott devices on my pc. Then the proper name of the tablet comes up:
C:\... fastboot devices
mt6582_phone fastboot
However when trying to flash a stock rom system.img in fastboot I'm stuck at "Erasing" system... and no OKAY comes. Or when I try to boot boot.img from a stock recovery in fastboot it never says ok, only booting..... So I think my fastboot is not working right:
c:\adb>fastboot boot boot.img
downloading 'boot.img'
OKAY [ 0.170s]
booting....
And that's it.. after booting... no OKAY comes and CMD freezes.
So anybody knows how to solve this? How to get my tablet back with a android OS system?
Thanks for any help I can get.
Br.
Kim
PS. Cant post pictures since I have not had 10 posts yet.

Related

Asus TF201 stuck on Asus Logo screen + "this device is unlocked" -- Newbie here!

Asus TF201 stuck on Asus Logo screen + "this device is unlocked" -- Newbie here!
Hi guys,
First off- I have to clarify that I don't know squat about Android..
I got this TF201 tablet from a technology-ill friend who asked if I can do something about it.
I've encountered many posts of people with this issue:
* Powering On the tablet get it stuck on the Asus Logo screen, with the "this device is unlocked" writing on the top left corner (and the nVidia Logo on the bottom right).
* Trying to power off the tablet only causes a power cycle, and it gets stuck in the same screen all over again.
* Trying to boot into fastrecovery (I think that's how it's called? - pressing the down volume button+power button) gets to the same stuck on screen as mentioned.
* Only way I got it to power off (I think) is by pressing the up volume button+power button and then first releasing the power button after the screen is blank (and only after the volume button).
* Connecting the tablet to the computer doesn't seem to work - it won't recognize the USB device (I do see "APX" under the list of Other Devices on the Device Manager) - can't seem to find (working) drivers.
I've read that there's a way to solve this using NVFlash -- don't think I have that..
Found other workarounds, but as I mentioned - I don't know how to get around much in this territory.
Anyone who's patient enough to help me out (if such thing is even remotely possible) ?
It will be much appreciated !
help?
I tryed install the v30, and later v26 version, but do not work.
When powering On the tablet get it stuck on the Asus Logo screen, with the "this device is unlocked" writing on the top left corner and the nVidia Logo on the bottom right.
Trying start with power mode, but boot do not start, only RCK mod recovery/fastboot started.
I think, that device is not unlocked. How to check/verify the device really unlocked? Or any idea? Please help me. Thanks.
Have one pf you @msarg77 or @skew01 got the tablet working again?
I am stuck with a tf201 which has TWRP 2.8 but after installing Katkiss 6 it won't boot; keeps rebooting...
deltabet, Can you get into the TWRP console?
NP
I'am sorry Nektopoli that i did not answer you any sooner.
The original fault was that i had formatted the tab with the wrong file system; it should have been f2fs.
After that is was Murphy, i run into other problems ending up with no fastboot, no adb, no TWRP only APX mode.
Luckily i had made the NvFlash backup of my tab with the important tab id files...
But i managed to get my tablet working with Android 6, but had to reinstall the original Asus firmware with the nvflash backup i had made.
An other problem i run into was that my tablet had an older bootloader 10.4.2.15 and this should have been 10.4.2.18.
With the reinstall of the latest Asus firmware (from support site Asus) i received the correct bootloader.
Anyhow, I am glad the tab is working again. And i have learned a lot about installing a rom on an Android tab.
Good to hear, but you should try be on BootLoader: 10.6.1.27.1 if you want to use one of the newer KANG-TWRP
NP
Check out this link for info on the bootloader;
https://forum.xda-developers.com/transformer-prime/help/bootloader-questions-tf201-t3104884
Same Problem... Different Day...
Nektopoli said:
Good to hear, but you should try be on BootLoader: 10.6.1.27.1 if you want to use one of the newer KANG-TWRP
NP
Check out this link for info on the bootloader;
https://forum.xda-developers.com/transformer-prime/help/bootloader-questions-tf201-t3104884
Click to expand...
Click to collapse
Hya Gang... I seem to have the same problem.....
The good news here is that I am able to get into the bootloader, and I do have BootLoader: 10.6.1.27.1 and I am able to fastboot into my windows computer... I have tried fastboot flashing both the flatline TWRP and the latest TWRP but here is my problem..
It will start into the TWRP recovery screen for a few seconds... then goes black. This computer was working fine running KatKiss a few weeks ago, then one night just crashed, went into the above described bootloop and got me stuck in this situation...
Unidave199, you might have to do a full wipe (via a laptop or computer), flash KANG's TWRP [found here: https://basketbuild.com/devs/Captain_Throwback/TF201T/TWRP ].
Boot into the new TWRP and then flash the ROM, GAAPs and SuperSU. I was able to send these commands to my TF201 to up-brick it;
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc
fastboot erase cache
Then flash the TWRP and reboot
fastboot -i 0x0B05 flash recovery c:\your\DIRECTORY\path\BLOB.FILE <TWRP zip file
fastboot -i 0x0B05 reboot
Good Luck
NP
Nektopoli said:
Unidave199, you might have to do a full wipe (via a laptop or computer), flash KANG's TWRP [found here: https://basketbuild.com/devs/Captain_Throwback/TF201T/TWRP ].
Boot into the new TWRP and then flash the ROM, GAAPs and SuperSU. I was able to send these commands to my TF201 to up-brick it;
fastboot erase system
fastboot erase recovery
fastboot erase userdata
fastboot erase boot
fastboot erase misc
fastboot erase cache
Then flash the TWRP and reboot
fastboot -i 0x0B05 flash system c:\your\DIRECORY\path\HERE
fastboot -i 0x0B05 reboot
Good Luck
NP
Click to expand...
Click to collapse
Regarding this line:
fastboot -i 0x0B05 flash system c:\your\DIRECORY\path\HERE
Is this a directory of the TWRP .img file that you've included in your post?
Luckily i had made the NvFlash backup of my tab with the important tab id files...
But i managed to get my tablet working with Android 6 said:
what did you use to restore your id files?
Click to expand...
Click to collapse
Krysiul said:
Regarding this line:
fastboot -i 0x0B05 flash recovery c:\your\DIRECTORY\path\HERE
Is this a directory of the TWRP .img file that you've included in your post?
Click to expand...
Click to collapse
Yes, but I made a mistake, it needs to be flashed to the recovery partition NOT system
NP
asus tf201 stucked on "the device is unblocked"
I seem to have the same problem with my asus tf201
Have you solved this problem?
shehada said:
I seem to have the same problem with my asus tf201
Have you solved this problem?
Click to expand...
Click to collapse
You need a computer or laptop (windows 7 or XP is preferred) with;
Universal_Naked_Driver_0.72: https://forum.xda-developers.com/attachment.php?attachmentid=1489873&d=1353190173
and
Minimal ADB and Fastboot: https://forum.xda-developers.com/showthread.php?t=2317790
Then you can plug the TF201 into the computer and see if you can receive fastboot commands like: adb reboot
NP

Huawei P20 Lite bricked: FRP lock, Phone Locked.

Hello, i have my phone Huawei P20 Lite wich is bricked with Phone Locked and FRP lock. I tried to write recovery with fastboot but always receive 'Command not allowed'. It's because my bootloader isn't unlocked...
when i want to power on it's stuck on 'Attention! Please install the update again'
If anyone know how to solve that, please leave an answer there!
orpheum123 said:
Hello, i have my phone Huawei P20 Lite wich is bricked with Phone Locked and FRP lock. I tried to write recovery with fastboot but always receive 'Command not allowed'. It's because my bootloader isn't unlocked...
when i want to power on it's stuck on 'Attention! Please install the update again'
If anyone know how to solve that, please leave an answer there!
Click to expand...
Click to collapse
Hi there
Have you tried to go to eRecovery through power on and Volume+ buttons?
Yes
ars_chelsea said:
Hi there
Have you tried to go to eRecovery through power on and Volume+ buttons?
Click to expand...
Click to collapse
yes, but is stucked on Huawei logo..
orpheum123 said:
yes, but is stucked on Huawei logo..
Click to expand...
Click to collapse
Hallo there
Ok! So you can't really have an unlock code? Cause that would help a lot more... Anyway as for now from all cases I have seen you are telling me this is the hardest one. Altough there is one more chance that you should try.
If you have the stock recovery .img or a TWRP recovery .img you might be able to boot to it and do a hard reset which fixes your issue.
First download the adb tools from here:
https://dl.google.com/android/repository/platform-tools-latest-windows.zip
Then extract it to a random folder.
After you have the stock or TWRP recovery .img just copy it to this folder and open it.
If you don't have the stock recovery, I have a link to it here:
https://mega.nz/#!SR9RzKST!dhXS0yC-p_SvWu-SYYLaop1aRFzSulLVrnSXCVVJiGI
Then press shift + right click on the mouse, it should show an option called "Open a Powershell Window here in case you have Windows 10, or "Open a CMD window here" (on windows 8 and below) click that and a window will appear.
Next, if you are on windows 10 and the window says Windows Powershell type ".\fastboot boot imagenamehere.img" if not and you are on Windows 8 or below type "fastboot boot imagenamehere.img".
Where "imagenamehere" is your image name such as recovery.img or twrp.img or usually on this stock recovery recovery_ramdisk.img.
It should boot into recovery
That way you can factory reset if on stock recovery of course.
Either way you gotta lose all your data right now, there's just no way around it without losing data.
Cheers and best of hopes,
AS
ars_chelsea said:
Hallo there
Ok! So you can't really have an unlock code? Cause that would help a lot more... Anyway as for now from all cases I have seen you are telling me this is the hardest one. Altough there is one more chance that you should try.
If you have the stock recovery .img or a TWRP recovery .img you might be able to boot to it and do a hard reset which fixes your issue.
First download the adb tools from here:
https://dl.google.com/android/repository/platform-tools-latest-windows.zip
Then extract it to a random folder.
After you have the stock or TWRP recovery .img just copy it to this folder and open it.
If you don't have the stock recovery, I have a link to it here:
https://mega.nz/#!SR9RzKST!dhXS0yC-p_SvWu-SYYLaop1aRFzSulLVrnSXCVVJiGI
Then press shift + right click on the mouse, it should show an option called "Open a Powershell Window here in case you have Windows 10, or "Open a CMD window here" (on windows 8 and below) click that and a window will appear.
Next, if you are on windows 10 and the window says Windows Powershell type ".\fastboot boot imagenamehere.img" if not and you are on Windows 8 or below type "fastboot boot imagenamehere.img".
Where "imagenamehere" is your image name such as recovery.img or twrp.img or usually on this stock recovery recovery_ramdisk.img.
It should boot into recovery
That way you can factory reset if on stock recovery of course.
Either way you gotta lose all your data right now, there's just no way around it without losing data.
Cheers and best of hopes,
AS
Click to expand...
Click to collapse
will not work, because:
"downloading 'boot.img'...
OKAY [ 0.487s]
booting...
FAILED (remote: Command not allowed)
finished. total time: 0.510s"
bootloader are locked, cant do anything!!
Arnys said:
will not work, because:
"downloading 'boot.img'...
OKAY [ 0.487s]
booting...
FAILED (remote: Command not allowed)
finished. total time: 0.510s"
bootloader are locked, cant do anything!!
Click to expand...
Click to collapse
Yeah you are right, my bad :/
I have a simple one, have you tried "fastboot reboot recovery" via the same command line as well? I know it's obvious but that should work for you...
If it doesn't please send me the error code.
Cheers,
AS
I'm also having almost the same issue. My p20 lite is locked to Japan AU network and frp lock but it's not bricked. I want to use it here in Philippines that's why I'm planning to install a stock rom which will work here. Can you help me?
Hello, I have the exact same problem the guy above has, and I tried "Fastboot reboot recovery" and it still didn't work, I believe because of my cellphone. Do you have any more advice?
contact me i will try help
Hi kikson112!
If You are able to help in such problem I would like to ask You for help as well.
My case look similar.
My P20 lite with no reason (nothing I know) got locked . the screen is black and when I try to unlock it shows only time and weather in uper right corner. It looks like it would stuck in flipcover mode but I never had one.
I tried to reset it , reboot it but nothing help.
I tried to connect by Hisuite to download My data but it is not in debugg mode so I cannot connect.
During reset it looks like it is not loading the system.
When I connect my bluetooth headset it connects.
It is playing the alarm in the morning.
But I cannot do anything. The screen does not respond.
Any ideas what could I try to get My data would be apprieciate.
Hi kikson112!
If You are able to help in such problem I would like to ask You for help as well.
My case look similar.
My P20 lite with no reason (nothing I know) got locked . the screen is black and when I try to unlock it shows only time and weather in uper right corner. It looks like it would stuck in flipcover mode but I never had one.
I tried to reset it , reboot it but nothing help.
I tried to connect by Hisuite to download My data but it is not in debugg mode so I cannot connect.
During reset it looks like it is not loading the system.
When I connect my bluetooth headset it connects.
It is playing the alarm in the morning.
But I cannot do anything. The screen does not respond.
Any ideas what could I try to get My data would be apprieciate.
Click to expand...
Click to collapse
hi, for rescue data use converter to connect a mouse in usb port should work, in this case posible digitizer can be just broken, try download software math to ur phone and write it over sd card by 3 buttons (vol - vol + pwr) and post here if any changes
Umm, you can try to get Huawei to do it or youcan buy an unlock key to flash the stuff.
I think there is a special Huawei Flash mode but I don't remember how to access it anymore because I was a Huawei employee and I knew how before but I forgot. Sorry!
hi all, i have the same problem...Huawei logo...
I connect the mobile phone to the PC, press volume - and power and enter "Fastboot & Rescue Mode".
Phone locked
FRP lock
I try to give the command from the terminal, fastboot boot recovery_ramdisk.img, and I have the following messages:
F: \ P20 \ platform-tools_r29.0.5-windows \ platform-tools> fastboot boot recovery_ramd
isk.img
<waiting for any device>
Sending 'boot.img' (32768 KB) OKAY [0.963s]
Booting FAILED (remote: 'Command not
allowed ')
fastboot: error: Command failed
Then try Volume+ buttons, but it restarts showing the initial logo, without going to eRecovery
hi all, i have the same problem...Huawei logo...
I connect the mobile phone to the PC, press volume - and power and enter "Fastboot & Rescue Mode".
Phone locked
FRP lock
I try to give the command from the terminal, fastboot boot recovery_ramdisk.img, and I have the following messages:
F: \ P20 \ platform-tools_r29.0.5-windows \ platform-tools> fastboot boot recovery_ramd
isk.img
<waiting for any device>
Sending 'boot.img' (32768 KB) OKAY [0.963s]
Booting FAILED (remote: 'Command not
allowed ')
fastboot: error: Command failed
Then try Volume+ buttons, but it restarts showing the initial logo, without going to eRecovery
Click to expand...
Click to collapse
is fastboot working and upgrade mode ?

Help!!! I accidentally flash boot instead of recovery

Device: Nokia 3.2
Os: Android 10
So I accidentally flash boot without backups or anything to recover, so when I boot up my device it show up TWRP and I turned it off for like a whole day and turned it back up again it stuck on fastboot mode and I can't exit it, I tried to go to recovery mode, reboot, turned it off for a while. Then I tried flashing it with Qfil but the tool can't even detect device, I installed the drivers and still it "No port available" , and I tried to manually flash it with fastboot and after that I tried this command fastboot -w flashall , again no luck, it said that "fastboot: error: ANDROID_PRODUCT_OUT not set", and I can't do much with this phone that has no images and I don't know much stuff because I'm new to this, so anyone have an idea how to fix this, thanks.

Question Unlocking OEM without access to the OS or the TWRP

I have a Moto G Play 2021 (XT2093-4) (another one), that I made a mistake to relock the bootloader after I had it unlocked. I don't have access to the OS on the phone anymore. Previously I had the treble floss installed on it. I don't have TWRP installed. The only thing I have access to is fastboot. I realise I might have completely bricked this phone but I thought I ask here to see if there is any way to unlock the OEM again just using the fastboot.
the fastboot screen on the phone has a menu option to go into recovery mode. stock recovery might be able to restore your phone to working condition.
volume-down + power buttons > fastboot mode > volume button to 'recovery' option > power button to execute. if your recovery screen is broken with the 'no command' message, hold down the power button and quickly press and release the volume-up button. that should get you to the working recovery screen where you can try to factory reset your phone.
strumcat said:
the fastboot screen on the phone has a menu option to go into recovery mode. stock recovery might be able to restore your phone to working condition.
volume-down + power buttons > fastboot mode > volume button to 'recovery' option > power button to execute. if your recovery screen is broken with the 'no command' message, hold down the power button and quickly press and release the volume-up button. that should get you to the working recovery screen where you can try to factory reset your phone.
Click to expand...
Click to collapse
Thanks, but I think my phone is completely messed up now. If you can believe it, I can't even get to recovery mode. I can get to fastboot and then find the recovery mode and click to go to it but then it just starts the fastboot again. I'm basically stuck in fastboot forever. It's just weird cause there's nothing wrong with the hardware. Thanks again.
if you have nothing working on your phone but fastboot mode, that might still be enough to rescue your phone. boot it to the fastboot screen, connect it to a pc that has the fastboot program installed, open a terminal window on the pc wherever fastboot is, and type 'fastboot devices'. if your phone answers with its serial number, you'rr probably able to flash a whole stock rom to it piece by piece. get a stock rom from somewhere like lenovo, using their lmsa program, or just download the right one from lolinet or somewhere. unzip it. then, for instance, to flash the boot.img to your phone you would type 'fastboot flash boot boot.img'. that would replace your possibly broken boot partition with a known good one. then 'fastboot reboot' to see if that helped. there are tutorials on the net for flashing the rest of the rom. be sure to read one, because all of the flash commands aren't that straightforward.
strumcat said:
if you have nothing working on your phone but fastboot mode, that might still be enough to rescue your phone. boot it to the fastboot screen, connect it to a pc that has the fastboot program installed, open a terminal window on the pc wherever fastboot is, and type 'fastboot devices'. if your phone answers with its serial number, you'rr probably able to flash a whole stock rom to it piece by piece. get a stock rom from somewhere like lenovo, using their lmsa program, or just download the right one from lolinet or somewhere. unzip it. then, for instance, to flash the boot.img to your phone you would type 'fastboot flash boot boot.img'. that would replace your possibly broken boot partition with a known good one. then 'fastboot reboot' to see if that helped. there are tutorials on the net for flashing the rest of the rom. be sure to read one, because all of the flash commands aren't that straightforward.
Click to expand...
Click to collapse
Sorry for the really late reply. I tried what you said, but it fails right at the (fastboot flash partition gpt.bin) command and the output I get is:
Sending 'partition' (37 KB) OKAY [ 0.002s]
Writing 'partition' (bootloader) Validating 'gpt.default.xml'
(bootloader) flash permission denied
(bootloader) Cancelling 'gpt.default.xml'
FAILED (remote: '')
fastboot: error: Command failed
It keeps saying flash permission denied. I have another exact same phone with an unlocked bootloader and I did the same on that one and I was able to flash a stock ROM to it. I've tried every RETCA and RETUS on this site: https://mirrors.lolinet.com/firmware/motorola/guamna/official/ but it fails with the same error. I'm going to try all the rest later but it's a lot to download for now.
Thanks again for the help!

Help Please... unable to boot into TWRP (or Orangefox)

First time poster.... please go gentle on me. Not entirely new to custom roms and TWRP, but really stuck here. I am trying to install a CrDroid ROM. Phone is not networked locked and brand new. What I managed to do so far:
1. Reset the phone
2. reboot into Recovery (Mi Recovery)
3. Wipe data
4. Unlocked the phone (using offical Mi Unlock)
I then proceeded to boot into Fastboot and flashed the TWRP (twrp-3.7.0_12-0-onclite), renamed to recovery. But after flashing and rebooting I can only get into Fastboot, or boot it normally. Holding down the Volume+Up and Power button doesn't get me anywhere but Fastboot. (Same for Volume-Down and Power Up). I tried both un-pluggin the phone from the PC immediately after flashing is finished, and using Fastboot Reboot command, but all to no avail. Its Fastboot or normal boot only.
I also tried whats suggested here upto the vbmeta image, but didn't make a difference. When sending the 'fastboot boot recovery.img' command, I get the following error:
C:\adb>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.939s]
booting...
FAILED (remote: unknown reason)
finished. total time: 1.502s
Trying this guide for a 'custom' boot image from this page also didnt help
Really hoping there is a way to get this resolved. But totally stuck here. Have access to both Mac OS and Windows 10. If anyone can point me in the right direction it would be wonderful!
Ok, small update - in hope to help others...
I went ahead and used 'XiaoMiTool V2'to see if it might help to load a different ROM. When starting the app, I choose the 'Bricked' device option, even it wasnt bricked. I choose the Global ROM 12. (The phone showed up as unknown and I didnt sign in with the Mi Account).
After the new ROM was on it, phone started normally and went through the setup. Had to re-enable Developer Options, USB Debugging, but even so it still didnt work - installing the TWRP just kept bringing me back to Fastboot.
However, the TWRP from this page did work: https://twrp.me/xiaomi/xiaomi-mi439.html
I also took no chances and held the Volume up button pressed and with the Command window open and 'fastboot reboot'typed out, hit the Enter key at the same time as pressing the Power button on the phone.
Worked for me!
Try to install PitchBlack Recovery it's very compable PBRP-pine-3.1.0 _OFFICIAL
Timesnaps said:
First time poster.... please go gentle on me. Not entirely new to custom roms and TWRP, but really stuck here. I am trying to install a CrDroid ROM. Phone is not networked locked and brand new. What I managed to do so far:
1. Reset the phone
2. reboot into Recovery (Mi Recovery)
3. Wipe data
4. Unlocked the phone (using offical Mi Unlock)
I then proceeded to boot into Fastboot and flashed the TWRP (twrp-3.7.0_12-0-onclite), renamed to recovery. But after flashing and rebooting I can only get into Fastboot, or boot it normally. Holding down the Volume+Up and Power button doesn't get me anywhere but Fastboot. (Same for Volume-Down and Power Up). I tried both un-pluggin the phone from the PC immediately after flashing is finished, and using Fastboot Reboot command, but all to no avail. Its Fastboot or normal boot only.
I also tried whats suggested here upto the vbmeta image, but didn't make a difference. When sending the 'fastboot boot recovery.img' command, I get the following error:
C:\adb>fastboot boot recovery.img
downloading 'boot.img'...
OKAY [ 0.939s]
booting...
FAILED (remote: unknown reason)
finished. total time: 1.502s
Trying this guide for a 'custom' boot image from this page also didnt help
Really hoping there is a way to get this resolved. But totally stuck here. Have access to both Mac OS and Windows 10. If anyone can point me in the right direction it would be wonderful!
Click to expand...
Click to collapse
You are trying to install onclite (Redmi 7) recovery on pine (Redmi 7A) ???
mi439 TWRP works for me as well & even successfully flash the rom/gapps. but when it comes to rooting with Magisk, i failed to flash nor install it properly. hope someone/somebody would make a tutorial for flashing/installing Magisk.

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