Help Stuck on boot screen after Lineage OS Rom install. - Samsung Galaxy A21s Questions & Answers

Hello.
I have done the installation process of Lineage OS 18.1 Rom that is posted here, so I did the wipe/factory reset, and the phone does not start... I cannot enter in downloading mode, and the PC does not connect to the phone... so it is bricked i think.
Could anyone help me??
Thank you.
Best regards.

I've having the same issue.. stuck on Samsung splash screen
But I can enter lineage OS recovery & downloading mode

Finally I managed to enter download mode and flash stock rom with Odin, just press vol+ vol- and power, then when the device turns off, release power button and connect it to the usb cable.
And then is in download mode and flash it with Odin.
Best regards

titoblue said:
Hello.
I have done the installation process of Lineage OS 18.1 Rom that is posted here, so I did the wipe/factory reset, and the phone does not start... I cannot enter in downloading mode, and the PC does not connect to the phone... so it is bricked i think.
Could anyone help me??
Thank you.
Best regards.
Click to expand...
Click to collapse
I think This is Probably due to the Bug in U7 Lineage Recovery. I tried it in my A21s with U7 And Couldn't get out of the Bootloop for a while. So I just Ditched the idea of changing to Stock rom. Let me know if Anyone finds the Working U7 Recovery

Related

OPX stuck In bootload - No access to phone, recovery or fastboot - Please help!

So I was trying to flash CM13 on my rooted OPX but I think I may have accidently deleted my recovery and now my phone is stuck in a boot loop where it loads the OxygenOS setup screen freezes then reboots. I would really appreciate it if someone can help me. Thanks in Advance
If you have none of these you should be sending for repairs. You sure you don't have fastboot? Have you taken a look at the mega unbrick guide?
carmelizing said:
So I was trying to flash CM13 on my rooted OPX but I think I may have accidently deleted my recovery and now my phone is stuck in a boot loop where it loads the OxygenOS setup screen freezes then reboots. I would really appreciate it if someone can help me. Thanks in Advance
Click to expand...
Click to collapse
If you havent tried , first press power button for few seconds till your phone switches off. Then press vol up+power button simultaneously to go in fastboot mode.
If you are successful then follow the Mega Unbrick guide for Oneplus X else head over to service center.
Oh thanks, couldn't figure how to get to fast boot, but thanks

One Plus one 64GB Stucked on boot logo, not booting into recovery, flashed stock rom.

Hi XDA Users,
I m feeling very helpless so i thought to write here cause every solution is here.
I am user of One Plus One (64GB variant). while normal usage i restarted my phone but it stuck on boot logo. i tried to boot into recovery mode by pressing Volume down + Power key but phone is not booting into recovery mode. i unlocked bootloader and tried by flashing TWRP but failed to boot into recovery. i flashed stock rom but situation is same. i also tried by flashing ColorOS then stock recovery.
Noting is working at least phone should boot with TWRP (twrp-2.7.0.0-bacon.img or twrp-3.2.1-0-bacon.img)
Phone is booting in preloader and fastboot mode only.
stock rom tried (cm-11.0-XNPH05Q-bacon-signed-fastboot and cm-13.1-ZNH2KAS1KN-bacon-signed-fastboot)
Everything is Failed.:crying::crying::crying:
Any help would be really appreciated.
rochak9411 said:
Hi XDA Users,
I m feeling very helpless so i thought to write here cause every solution is here.
I am user of One Plus One (64GB variant). while normal usage i restarted my phone but it stuck on boot logo. i tried to boot into recovery mode by pressing Volume down + Power key but phone is not booting into recovery mode. i unlocked bootloader and tried by flashing TWRP but failed to boot into recovery. i flashed stock rom but situation is same. i also tried by flashing ColorOS then stock recovery.
Noting is working at least phone should boot with TWRP (twrp-2.7.0.0-bacon.img or twrp-3.2.1-0-bacon.img)
Phone is booting in preloader and fastboot mode only.
stock rom tried (cm-11.0-XNPH05Q-bacon-signed-fastboot and cm-13.1-ZNH2KAS1KN-bacon-signed-fastboot)
Everything is Failed.:crying::crying::crying:
Any help would be really appreciated.
Click to expand...
Click to collapse
Try this tips
https://www.youtube.com/watch?v=Sm-lWKk8uFs
Good Luck
Not Working
Dear,
Teddy Lo
Thanks for your reply But i have tried this method. flashing is done but phone is still in same state (boot logo).
I am thinking there may be any hardware issue. I have sent this handset to one of the best repair center in india. just wating for their reply.

Struck at MI logo while joining partitions

I'm struck at MI logo and even if I shutdown it is restarting at struck at mi logo. If I hold volume and power button, I can see fastboot screen but nothing happens after that. Kindly help how to reset my mi pad
Same problem here.
chandidas said:
I'm struck at MI logo and even if I shutdown it is restarting at struck at mi logo. If I hold volume and power button, I can see fastboot screen but nothing happens after that. Kindly help how to reset my mi pad
Click to expand...
Click to collapse
Problem:
1.I had Resurrection Remix rom 7.1.2 installed with TWRP.
2. Tried to Install stock rom and stock recovery. Was able to install stock recovery but it was hanging in recovery. Could not move with volume buttons.
3. Then I tried flashing fastboot roms through miflashtool. Flashing was done successfully but nothing happens. It is now stuck on MI logo.
4. Mi logo only(No powered by android below or anything) It just restarts.
5. Cant go to recovery by any means tried everything.
6. Can only go to fastboot.
7. Adb does not detect device tried to install multiple times.
8. Cannot switch on Usb debuging since tablet wont boot even once.
9. I have no means to flash recovery as well.
Please help.
Same here
daewoo31 said:
Problem:
1.I had Resurrection Remix rom 7.1.2 installed with TWRP.
2. Tried to Install stock rom and stock recovery. Was able to install stock recovery but it was hanging in recovery. Could not move with volume buttons.
3. Then I tried flashing fastboot roms through miflashtool. Flashing was done successfully but nothing happens. It is now stuck on MI logo.
4. Mi logo only(No powered by android below or anything) It just restarts.
5. Cant go to recovery by any means tried everything.
6. Can only go to fastboot.
7. Adb does not detect device tried to install multiple times.
8. Cannot switch on Usb debuging since tablet wont boot even once.
9. I have no means to flash recovery as well.
Please help.
Click to expand...
Click to collapse
Iam with the same problem as you hope someone comes for our help
https://en.miui.com/forum.php?mod=viewthread&tid=2781455#lastpost i had the same problem, i follow the above guide and it works.

[q] mi a1 freezing after some time and restarting

HI ALL,
RECENTLY I WAS TRYING TO INSTALL TWRP FOR TISSOT. BUT I COULD NOT FIND RECOVERY PARTITION ON MY DEVICE. SO I TRIED "FASTBOOT FLASH PARTITION gpt_both0.bin". BUT AFTER REBOOTING MY DEVICE GONE INTO EDL MODE. THEN I TRIED TO FLASH THE ORIGINAL TISSOT 8.0 BY MI FLASH TOOL.
AFTER REBOOTING ITS SHOWING ANDROID ONE LOGO THEN AFTER FEW SECONDS IT'S FREEZING AND RESTART. I TRIED TO FLASH WITH ORIGINAL 7.0 ROM AND 8.0 ALSO WITH 8.1 ROM MANY TIMES. BUT EVERYTIME AFTER FLASHING IT'S BOOTING AND GETTING FREEZES AND RESTARTS.
(IT'S WORKING FINE BOTH IN FASTBOOT MODE AND RECOVERY MODE).
NOW GUYS PLEASE HELP ME TO FIX MY DEVICES IF ANYONE KNOWS ABOUT THIS ISSUE. I DON'T WANT TO GO TO SERVICE CENTRE.
PLEASE GUYS.​
Thanks a lot XDA
pnath said:
hi all,
recently i was trying to install twrp for tissot. But i could not find recovery partition on my device. So i tried "fastboot flash partition gpt_both0.bin". But after rebooting my device gone into edl mode. Then i tried to flash the original tissot 8.0 by mi flash tool.
After rebooting its showing android one logo then after few seconds it's freezing and restart. I tried to flash with original 7.0 rom and 8.0 also with 8.1 rom many times. But everytime after flashing it's booting and getting freezes and restarts.
(it's working fine both in fastboot mode and recovery mode).
Now guys please help me to fix my devices if anyone knows about this issue. I don't want to go to service centre.
Please guys.​
Click to expand...
Click to collapse
thanks a lot xda, i finally recovered my device fully. And got latest android 9.0 pie update too. Special thanks to https://forum.xda-developers.com/crossdevice-dev/android-one-secondgeneration-general/guide-fix-devices-imeis-signal-t3589276
Thanks a lot guys.

Samsung Galaxy A105FN/DS hardbricked after flashing wrong custom rom

so today i wanted to install havoc os 3.9 on my galaxy a10 . after rebooting from twrp when i completed the process . it hardbricked. (i cant access fastboot or twrp or download mode and does not turn on only with force turn on)
pls help
Fenix29 said:
so today i wanted to install havoc os 3.9 on my galaxy a10 . after rebooting from twrp when i completed the process . it hardbricked. (i cant access fastboot or twrp or download mode and does not turn on only with force turn on)
pls help
Click to expand...
Click to collapse
the same I can only forced open it by power + vol down but It close

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