I have wiped system partition and dalvik cache without flashing recovery and rebooted it, now I'm stuck on fastboot mode, anyway to boot back normally, without losing data? I'm unable to boot into twrp through fastboot, it says that couldnt authenticate boot image
Try switching the recovery partition, then try to boot the recovery img again.
fastboot --set-active=b
fastboot boot path/to/your/recovery.img
Related
Hi,
So, I'm a bit new to this device and also helping a friend so not sure what actually caused this, but here is the issue I am having.
Whenever I turn on the phone, it boots only to fastboot mode. This is also true whenever plugging the charger to the phone.
Bootloader is still locked, and trying to flash stock rom using pc tool or fastboot shows that it is successful but has no effect. I've tried this multiple times.
I could boot directly to twrp, using fastboot boot and twrp shows that it can't mount any internal partition.
Issuing df command from twrp shows no partition other than tmpfs. Mount shows similar output, with the addition of recovery partitions.
Anything I could do about this phone?
Bootloader never locks in mi4i.
Try flashing TWRP instead of just booting into it
use
fastboot flash recovery twrp.img
After flashing, allow modifications
and repair file system for system and data partitions to ext4 from wipe menu
madhurajkumar said:
Bootloader never locks in mi4i.
Try flashing TWRP instead of just booting into it
use
fastboot flash recovery twrp.img
After flashing, allow modifications
and repair file system for system and data partitions to ext4 from wipe menu
Click to expand...
Click to collapse
Well, when I check in fastboot oem device-info
Device unlocked is false.
Doesn't that mean it's bootloader is locked?
Also I did tried flashing TWRP, but it won't stick. After reboot the modification just seems gone.
Mi4i bootloader is unlocked by default as far I knew. Did you try
fastboot oem unlock
to unlock it?
Did repair file system not work when you tried it from twrp?
I wanted to upgrade my LineageOS version, so:
I wiped all the partitions I could wipe (from TWRP)
I rebooted to recovery, but I got a CrashDump error
I tried "fastboot boot" the latest official twrp img, and the bluespark one, but same error.
I also tried this https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665 but it wasn't of help.
What do I have to do?
Both system and recovery mode leads to a CrashDump mode
Solved! I did this https://www.getdroidtips.com/unbrick-oneplus-6/ and worked!
If you can boot into fastboot, you could just flash fastboot images with flashall.bat script
My realme 5 pro bootloops and never boot to recovery, I've flashed
stock .img files (system, vendor, boot, dbto, vbmeta, recovery) from
ROM(RMX1971EX_11_OTA_1080_all_29hQ1fOMjgyl) (C.08 RUI 1.0) and various custom recoveries(TWRP-OrangeFox) using fastboot mode but nothing.
Also it was booting into fastboot directly nothing else, but after erasing system partitions
(system, boot, vendor, recovery, dbto, cache, userdata)
via fastboot commends then flashing them using C.08 ROM files and disabling verification,
it began to bootloop on "powered by android" screen after it was booting into fastboot only so i think it's good step forward, but i need some help to know what should i do next.
What happended exactly ?
Well, yesterday i had an OTA update for android 11 RUI 2.0, after update done and system boot up, it began flashing the lock screen then a black screen; so i used commend
Code:
fastboot erase userdata
after that i couldn't go recovery mode again.
Merry Christmas guys,
I have a really unusual situation.
First time that I have tried all tricks I know and I can't get myself out of this difficult situation.
I was trying to update Magisk with a patched boot file and after a reboot I was not being able anymore to access the system but only this black screen with the Crashdump Mode is appearing.
I can access the Fastboot screen, but no way to reboot to the TWRP recovery or to flash another boot.img, even through some pc flashing utilities.
Is there anything to try through another slot or something else?
I also tried:
fastboot flash boot_a boot.img
and I get this error:
FAILED (remote: Flashing is not allowed for Critical Partitions)
But my bootloader is unlocked and other commands like fastboot reboot works normally.
After I flashed through fastboot the images of boot, abl, dtbo, fw I can only access the TWRP recovery where everything is decrypted.
Any other ideas?
Try booting temporary into TWRP by using this command
fastboot boot twrp.img
If you can't use MSMDownloadTool
Installed lineageos19.1 with lineage recovery. Flashed recovery_a with fastboot flash recovery_a twrp-3.5.2_10-kiev.img. All working normally except recovery. Twrp starts but only gets to start screen then shuts down and reboots to lineageos. Also cannot access recover_a to flash anything else. Any ideas on how how to clear and reflash lineageos recovery?
Maybe try:
fastboot boot lineagerecovery.img
once booted (assuming it doesnt reboot as you are experiecing)
abd sideload lineagerecovery.img
reboot