bootloop after unlocking bootloader and flashing TWRP

bfbl

Member
Feb 13, 2018
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Hello,
I have lenovo k4 note 32GB ROM, 2GB RAM with stock 6.0 MM. I've unlocked the bootloader with the command ''fastboot flashing unlock'', confirmed it by pressing volume down and returned to fastboot, then successfully flashed twrp from here https://forum.xda-developers.com/k4-note/development/recovery-twrp-3-0-2-0-touch-recovery-t3530374 , i used the latest version 3.2.1. Now the phone remains in bootloop. After pressing vol- with pwr it enters meta mode for a few seconds but then returns to bootloop again. Attempts to anything lead to bootloop. My computer does not recognise it. Is there anything I can do to revive it? Maybe SP flashtool? I have not tried that yet. Help me please, I would be very thankful for any help.
Thank you
 

senthilvigneshkumar

Senior Member
Nov 24, 2012
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Hello,
I have lenovo k4 note 32GB ROM, 2GB RAM with stock 6.0 MM. I've unlocked the bootloader with the command ''fastboot flashing unlock'', confirmed it by pressing volume down and returned to fastboot, then successfully flashed twrp from here https://forum.xda-developers.com/k4-note/development/recovery-twrp-3-0-2-0-touch-recovery-t3530374 , i used the latest version 3.2.1. Now the phone remains in bootloop. After pressing vol- with pwr it enters meta mode for a few seconds but then returns to bootloop again. Attempts to anything lead to bootloop. My computer does not recognise it. Is there anything I can do to revive it? Maybe SP flashtool? I have not tried that yet. Help me please, I would be very thankful for any help.
Thank you
1. Flash stock version (This will lock you bootloader again).
2. Unlock bootloader and let it reboot (donot flash recovery now)
3. It will wipe the device and boots up.
4. After the boot is successful, go back to fastboot and flash recovery.
 

bfbl

Member
Feb 13, 2018
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1. Flash stock version (This will lock you bootloader again).
2. Unlock bootloader and let it reboot (donot flash recovery now)
3. It will wipe the device and boots up.
4. After the boot is successful, go back to fastboot and flash recovery.
I appreciate your reply, but could you please elaborate on the first step? How am I supposed to flash stock recovery when I cannot enter fastboot? The phone is in bootloop no matter what I try. I can't seem to find a way to communicate with the phone from computer.
 
Last edited:

senthilvigneshkumar

Senior Member
Nov 24, 2012
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28
I appreciate your reply, but could you please elaborate on the first step? How am I supposed to flash stock recovery when I cannot enter fastboot? The phone is in bootloop no matter what I try. I can't seem to find a way to communicate with the phone from computer.
Flash full stock rom, not just recovery using flashtool. You can't flash recovery alone at this point.

For flashtool, you need to power off the mobile completely.
 
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bfbl

Member
Feb 13, 2018
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Flash full stock rom, not just recovery using flashtool. You can't flash recovery alone at this point.

For flashtool, you need to power off the mobile completely.
Thank you soooo much, you helped me a lot. The phone is now running! :)

Btw, before I restored it, I got into TWRP once, I think i pressed some of the nav buttons to get there. But in mount partitions system was missing and data partition was showing 0B, so something was definitely wrong.

Gonna try flashing it again, this time I'll reboot after unlocking bootloader and only then flash. I hope this time I'll succeed
 

senthilvigneshkumar

Senior Member
Nov 24, 2012
229
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Thank you soooo much, you helped me a lot. The phone is now running! :)

Btw, before I restored it, I got into TWRP once, I think i pressed some of the nav buttons to get there. But in mount partitions system was missing and data partition was showing 0B, so something was definitely wrong.

Gonna try flashing it again, this time I'll reboot after unlocking bootloader and only then flash. I hope this time I'll succeed
Good, might be problem with twrp. Flash the correct version of twrp provided for k4 note(2/3gb/
 

bfbl

Member
Feb 13, 2018
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Good, might be problem with twrp. Flash the correct version of twrp provided for k4 note(2/3gb/
It works now, successfully rooted!

I know it's OT, but could you recommend me a reliable custom AOSP ROM? I don't have time to spend trying to find one. You seem to have experience with the phone :)
thanks!
 

senthilvigneshkumar

Senior Member
Nov 24, 2012
229
30
28
It works now, successfully rooted!

I know it's OT, but could you recommend me a reliable custom AOSP ROM? I don't have time to spend trying to find one. You seem to have experience with the phone :)
thanks!
Try resurrection remix. More stable one as far as i know. Follow the install steps exactly as said in OP
 
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