Fatsboot boot bug (phone doesn't boot) - Nokia 7.1 Questions & Answers

Hello!
Now I have a trouble with my Nokia 7.1.
When I try to boot twrp or another kernel (boot.img) it stuck. I do '"fastboot boot twrp.img" or "fastboot boot boot.img" and my phone frozes on Android One logo.
And if problem with twrp can be solved (first enter "fastboot flash recovery twrp.img" and only than "fastboot boot twrp.img"), problem with boot.img is still relevant.
I noticed, that after "fastboot boot ..." phone restarts into download mode.
My phone is unlocked.
Thank

Hi, before any boot command, you'll need to do that flash recovery counterpart. You can do it on a standard boot image as well, not just TWRP. There's no recovery partition, so, nothing gets flashed. But it somehow allows us to boot our bootable img files.
So,
Code:
fastboot flash recovery boot.img
fastboot boot boot.img

singhnsk said:
Hi, before any boot command, you'll need to do that flash recovery counterpart. You can do it on a standard boot image as well, not just TWRP. There's no recovery partition, so, nothing gets flashed. But it somehow allows us to boot our bootable img files.
So,
Code:
fastboot flash recovery boot.img
fastboot boot boot.img
Click to expand...
Click to collapse
Yes! Thank you.
I recently came to this conclusion, but what is it?
Does it bootloader bug or anything else?

i have similar problems and just started a new request

Related

[Q] Flashed kernel as recovery

Well today i flashed buttered toast's kernel today, i got a bootloop so to fix that i went on command and did fastboot to flash the stock kernel to fix the boot loop (i've done this before and worked) now what i did was mistakenly i don't even know what was going through my head, i flashed the stock kernel as my recovery. So i wrote "fastboot flash recovery boot.img" instead of "fastboot flash boot boot.img" and so i quickly realized that and did it again except the correct way this time. Realizing that my 4EXT recovery was erased so after successfully booting up my cell i noticed i had wifi error, so i figured ill flash stock kernel again from recovery after i go through "fastboot flash recovery cwm.img" and flash cwm. That did not work, my phone just reboots to system. I do not know what to do. I cant get wifi to download a 4EXt recovery or cwm and flash it through system, but how could i without wifi even if fastboot recovery won't work?
Shariq Ahmed said:
Well today i flashed buttered toast's kernel today, i got a bootloop so to fix that i went on command and did fastboot to flash the stock kernel to fix the boot loop (i've done this before and worked) now what i did was mistakenly i don't even know what was going through my head, i flashed the stock kernel as my recovery. So i wrote "fastboot flash recovery boot.img" instead of "fastboot flash boot boot.img" and so i quickly realized that and did it again except the correct way this time. Realizing that my 4EXT recovery was erased so after successfully booting up my cell i noticed i had wifi error, so i figured ill flash stock kernel again from recovery after i go through "fastboot flash recovery cwm.img" and flash cwm. That did not work, my phone just reboots to system. I do not know what to do. I cant get wifi to download a 4EXt recovery or cwm and flash it through system, but how could i without wifi even if fastboot recovery won't work?
Click to expand...
Click to collapse
Try to boot into recovery from fast boot command
Fastboot boot cwm.img or what ever recovery img you have
Sent from my DOWNGRADED EVO 3D
jcfunk said:
Try to boot into recovery from fast boot command
Fastboot boot cwm.img or what ever recovery img you have
Sent from my DOWNGRADED EVO 3D
Click to expand...
Click to collapse
Well i just got a newer version of recovery from clock work mod's website and i used command prompt to flash it and i got my recovery back, booted up my phone, flashed 4EXT recovery, then flashed a custom kernel with smart flash on and the wifi works now
Thanks for your help though!
see

I can't flash back stock rom :(

Hi everyone I have a big problem I make backup of my stock rom (boot.img, recovery.img, etc.) and now I try to flash it back but it say error and bad size
My device: Colorovo citytab lite 10" (RockChip RK3168)
Sorry for my bad English.
You have to flash the .img files with fastboot.
For the boot its: fastboot flash boot boot.img
For the recovery its: fastboot flash recovery recovery.img
I'm trying to toggle on fastboot but I can't see device in "fastboot devices"
Now I'm on logo screen(not animation) but I can't boot. Only works recovery, adb and bootloader :/

fastboot

I just wanted to know... If I ran "fastboot boot recovery.img", this would merely boot the recovery image and not install it right? And to boot into system I would just have to "fastboot reboot" right?
fastboot boot recovery.img (Boot into recovery)
fastboot flash recovery recovery.img (install twrp recovery)
staharuddin said:
I just wanted to know... If I ran "fastboot boot recovery.img", this would merely boot the recovery image and not install it right? And to boot into system I would just have to "fastboot reboot" right?
Click to expand...
Click to collapse
yup, thats right. that boot command can be used to perform some quick commands, like resetting etc.
So if I want to keep my stock recovery I can just use "fastboot boot recovery.img" Is that correct?
staharuddin said:
So if I want to keep my stock recovery I can just use "fastboot boot recovery.img" Is that correct?
Click to expand...
Click to collapse
Yes you are correct this command will just open your currently installed recovery but to flash the recovery you'll have to use the following command
Fastboot flash recovery recovery recovery_name.img

deleted

Hello,
i have a TF303k Asus tablet.
It worked fine (rooted with Kingo) until i ran Magisk.
Since then, the tablet only boots into fastboot mode, when i switch it on.
However, when i do a:
Code:
fastbooot boot boot.img
with the boot.img of the firmware.zip, the tablet starts and i can use it.
Trying to make booting permanent does not seem to work:
Doint a
Code:
fastboot flash boot boot.img
ends with success, but the tablet again goes to fastboot mode.
There are some additional images in the firmware: bootloader.[aboot, rpm, bl2, sbl3,tz].img but none of these is bootable.
I'm not able to boot into recovery, i always end up in fastboot mode.
Any tips or does anyone have a recovery.img ?
Thanks, Je\/eR

Successfully unbricked mi 9t

I would like to share my experienced how to unbricked my phone that stock on fastboot mode.why my phone is brick? The reason why my phone brick just because i restore the wrong system with the other vendor from china to miuimix and after restore it, it stock on fastboot mode unable to recover backup or to load in recovery mode. It didn't also turn off. l try to use miflash tool but it didn't work because of authorization not match to my phone, i tried other fastboot rom but it didnt work.. Try to boot twrp using fastboot boot but it didn't show any. I came up with the idea to flash. Img using cmd into the system that i restore, begin with the boot.img nothing will happen. Until i flash the vbmeta.img, then it begin to show boot img and eventually access twrp. I wiped everything and flash again a brandnew rom miui12 and it works well now.. Hope it will help to others to have an idea to unbrick there phone. ☺☺☺
flamedrops said:
I would like to share my experienced how to unbricked my phone that stock on fastboot mode.why my phone is brick? The reason why my phone brick just because i restore the wrong system with the other vendor from china to miuimix and after restore it, it stock on fastboot mode unable to recover backup or to load in recovery mode. It didn't also turn off. l try to use miflash tool but it didn't work because of authorization not match to my phone, i tried other fastboot rom but it didnt work.. Try to boot twrp using fastboot boot but it didn't show any. I came up with the idea to flash. Img using cmd into the system that i restore, begin with the boot.img nothing will happen. Until i flash the vbmeta.img, then it begin to show boot img and eventually access twrp. I wiped everything and flash again a brandnew rom miui12 and it works well now.. Hope it will help to others to have an idea to unbrick there phone.
Click to expand...
Click to collapse
Could you explain? My phone is stuck at fastboot and my pc doesn't detect the phone.
if u could access your phone via fastboot / adb then it wasn't a hardbrick , just a softbrick
TahmidZee said:
Could you explain? My phone is stuck at fastboot and my pc doesn't detect the phone.
Click to expand...
Click to collapse
You should check first the driver of your computer. Make sure you have the driver of your phone to your computer. After that you can check your device via adb by using commnd on cmd "adb devices".
instructions to flash:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot erase recovery
fastboot flash recovery twrp-3.3.1-0-davinci.img
link: https://dl.twrp.me/davinci/twrp-3.3.1-0-davinci.img
w595shubham said:
instructions to flash:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot erase recovery
fastboot flash recovery twrp-3.3.1-0-davinci.img
link: https://dl.twrp.me/davinci/twrp-3.3.1-0-davinci.img
Click to expand...
Click to collapse
VERY VERY THANX A LOT MAN...THX THX THX:highfive:
flamedrops said:
I would like to share my experienced how to unbricked my phone that stock on fastboot mode.why my phone is brick? The reason why my phone brick just because i restore the wrong system with the other vendor from china to miuimix and after restore it, it stock on fastboot mode unable to recover backup or to load in recovery mode. It didn't also turn off. l try to use miflash tool but it didn't work because of authorization not match to my phone, i tried other fastboot rom but it didnt work.. Try to boot twrp using fastboot boot but it didn't show any. I came up with the idea to flash. Img using cmd into the system that i restore, begin with the boot.img nothing will happen. Until i flash the vbmeta.img, then it begin to show boot img and eventually access twrp. I wiped everything and flash again a brandnew rom miui12 and it works well now.. Hope it will help to others to have an idea to unbrick there phone.
Click to expand...
Click to collapse
Can u please explain it. I am stuck with the same problem. I got success in flashing fastboot rom via miflash tool but it's still stuck in fastboot.
Thanks God Bless You.
---------- Post added at 05:01 PM ---------- Previous post was at 04:36 PM ----------
Deaddo6 said:
VERY VERY THANX A LOT MAN...THX THX THX:highfive:
Click to expand...
Click to collapse
This Helped You guys are angel
w595shubham said:
instructions to flash:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot erase recovery
fastboot flash recovery twrp-3.3.1-0-davinci.img
link: https://dl.twrp.me/davinci/twrp-3.3.1-0-davinci.img
Click to expand...
Click to collapse
I have the same problem. I tried also this one, but nothing.
Everything goes ok in CMD, but when I type:
fastboot boot twrp.img
I get:
FAILED (remote: Failed to load/authenticate boot image: Load Error)
I still can't go in Recovery, neither turn off the phone. How solve this?!
dix93 said:
I have the same problem. I tried also this one, but nothing.
Everything goes ok in CMD, but when I type:
flash boot twrp.img
I get:
FAILED (remote: Failed to load/authenticate boot image: Load Error)
I still can't go in Recovery, neither turn off the phone. How solve this?!
Click to expand...
Click to collapse
flash boot twrp.img?
What do you wanna do?
If you want to boot into TWRP it should be
Code:
fastboot boot recovery "name-of- recovery.img"
If you want to flash TWRP it should be
Code:
fastboot flash recovery "name-of-recovery.img"
Your command
fastboot flash boot twrp.img should flash the recovery image over the boot image?
If you want to boot into twrp you should use the command above.
As far as I know not every device/firmware is able to boot into TWRP. It seems other users were able to do so with a mi 9t so my advice would be:
- Try another usb port / cable.
- Check twice if you renamed the twrp image correctly
- Try another twrp version (older one or unofficial)
w595shubham said:
instructions to flash:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot erase recovery
fastboot flash recovery twrp-3.3.1-0-davinci.img
link: https://dl.twrp.me/davinci/twrp-3.3.1-0-davinci.img
Click to expand...
Click to collapse
Wolfcity said:
flash boot twrp.img?
What do you wanna do?
If you want to boot into TWRP it should be
Code:
fastboot boot recovery "name-of- recovery.img"
If you want to flash TWRP it should be
Code:
fastboot flash recovery "name-of-recovery.img"
Your command
fastboot flash boot twrp.img should flash the recovery image over the boot image?
If you want to boot into twrp you should use the command above.
As far as I know not every device/firmware is able to boot into TWRP. It seems other users were able to do so with a mi 9t so my advice would be:
- Try another usb port / cable.
- Check twice if you renamed the twrp image correctly
- Try another twrp version (older one or unofficial)
Click to expand...
Click to collapse
Thank you. Actually I was confused in the transcript here, I meant fast boot instead of flash.
But I figured out to use XiaomiFlash Tool to install a ROM via fastboot, and then reinstall a recovery.
The popup camera is not working good with the XIAOMI official rom (It tries to close the cam even if it is already closed). Now I'm trying to install Havoc OS to try to solve those problem, but it demands me the miui v11.0.4 or new (error in twrp), even if I have the miui v12.... trying to figure out why
for the guys whome are stuck on fastboot, you may try "XiaoMiTool V2". this bought my Mi9T from fastboot to life.
make sure all the drivers are installed as well. what's better is install usb drivers, reboot computer, enable usb debugging, connect the phone to computer, select transfer data, wait till the computer completely setup your phone, turn off phone and connect to computer, wait till computer detects and setup, put the phone on fastboot mode and connect, check whether computer shows android device... once everything are confirmed then proceed with flasing.. :good::good:
w595shubham said:
instructions to flash:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot erase recovery
fastboot flash recovery twrp-3.3.1-0-davinci.img
link: https://dl.twrp.me/davinci/twrp-3.3.1-0-davinci.img
Click to expand...
Click to collapse
This command - fastboot flash vbmeta worked.
(using a version from Redispade for Grus - mi9se)
Unbricked my bootloop (recovery) after upgrading from miui 12 (android 10) to 12.5 android 11.
thanks!

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