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boot loop please help

i was on oreo rom by har****... but now i'm facing continuous booting..just shows lenovo logo then restarts..tried to enter twrp ...shows twrp logo then restarts continuously..is there any way to reinstall twrp??

If you are able to enter fastboot mode,then try to boot twrp from ADB

[Fixed] Stuck on TWRP logo, can reboot only to recovery or bootloader

Hi, I installed Reurrection Remix, this recovery TWRP 3.2.1-0 by Pretoriano80: I wanted to make a twrp backup so I pressed restart -> recovery, the phone is stuck on the TWRP logo, and only reboots to recovery to get stuck again. It is possible to go to bootloader, I tried fastboot reboot but it reboots to recovery only and can't be turned off.
What should I do?

EneaV said:
Hi, I installed Reurrection Remix, this recovery TWRP 3.2.1-0 by Pretoriano80: I wanted to make a twrp backup so I pressed restart -> recovery, the phone is stuck on the TWRP logo, and only reboots to recovery to get stuck again. It is possible to go to bootloader, I tried fastboot reboot but it reboots to recovery only and can't be turned off.
What should I do?
Click to expand...
Click to collapse
I resolved installing a different recovery

[SOLVED] Unable to enter TWRP/Stock recovery and can't boot into system

Hi,
I have been using my P Smart (FIG-LX1) for a while with LineageOS 16 and decided to move on to Android 10. Installed LineageOS 17.1 (found it on this forum) and pph-Magisk 20.3 for root - it did work, but the system was unstable so i decided to try AOSP 10.0 instead. I entered TWRP, wiped cache,dalvik,system and data, flashed the ROM, gapps etc. It was advised to now flash stock recovery and use it to do a factory reset - and now i'm stuck here.
After flashing the recovery_ramdisk img the phone stopped being able to enter any recovery at all. The system itself does not boot (stuck on the "Your device has been unlocked (...) Your device is booting now..." screen forever), the recovery never appears (previously in the start screen with 'unlocked device' warning it used to suggest pressing volume UP to enter recovery, now it only shows "Your device is booting now"). As i can still access fastboot, I tried flashing TWRP again - the TWRP splash screen does appear, but the phone gets stuck on it. Also tried flashing another system's img - nothing changed.
Is there anything I can do or did i just brick it completely?
Thanks for help!
SOLVED:
Apparently running fastboot erase on system and userdata partitions made me able to boot into recovery/erecovery again. I do have another problem now, but it's not connected with this one so I will create another thread for that.

Could you try help me? I can't even get ADB to work anymore

Twrp logo stuck and Lineage logo bootloop

Yesterday i tried Lineage rom and when i tried to switch back to other Rom and goto Recovery Mode,it just goes with Lineage Recovery Mode that i cannot switch to TWRP again,so i did ADB and flashed TWRP again,but this time after flashing twrp i did (fastboot erase cache) after that ( fastboot reboot recovery ) Indeed it reboot into twrp Recovery ,but Stuck there at with logo, even if booting up, also Stuck at Lineage Logo.
Now ADB didn't recognize with Fastboot mode, only Recognize in Recovery Mode,but with Recovery mode Adb command doesn't work anythings....
Hopes for Experts helps from here Thanks.

Samsung s8 stuck on lineage boot logo

I bricked my phone and decided to install a rom to fix it
So I decided to install lineage 17 on my s8
The only way to install it was to use adb sideload
On my mac I used it whilst the phone was in sideload mode in TWRP
It successfully installed and rebooted but now its stuck on the lineage logo and then it goes back to recovery mode(TWRP) after a minute
I cleared all kind of cache but didn't work
Any advice please?