Fix phone using only fastboot? - LG V20 Questions & Answers

alright so I can't boot into anything. When I try to boot TWRP it gets to the loading screen and just idles there indefinitely. If I try a normal boot, it get encryption unsuccessful, passwords match but data is ****ed, system UI has crashed. I can only boot into fastboot. How do I go about fixing this problem?

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[Q] Cannot Boot into Recovery, Android O.S is Messed Up

Hi,
The other day, I flashed a new ROM (after clearing everything) and it has messed up my entire device. My device gets stuck at the android logo and stays there forever when booting into Android. I cannot boot into recovery mode, it just gets stuck at "Google".
I also cannot boot into recovery mode using Nexus 7 toolkit because it requires my device to be booted, which is impossible.
Anyone know how to fix this?
Thanks

Keeps hanging on recovery boot

For some reason, every time I try to boot into recovery, either through app or munual restart, my phone gets stuck in a boot loop and I have to reflash to get out of the loop.
I'm trying to get into to recovery so I can fix my volume problem
SharpTJ said:
For some reason, every time I try to boot into recovery, either through app or munual restart, my phone gets stuck in a boot loop and I have to reflash to get out of the loop.
I'm trying to get into to recovery so I can fix my volume problem
Click to expand...
Click to collapse
Stock recovery?
No I have tried twrp and cwm and back to stock now and still doing it

Failed to mount any partition / Kernel Panic / boot loop / Galaxy S5 klte

Phone was running stock os. I rebooted my phone and it's now stuck in a boot loop. I tried to reinstall it through Smart Switch and it's still stuck in a boot loop.
After the reinstall it goes to "Installing system updates" and almost right after it stops and shows "Erasing" for a second. It then reboots a few times and it usually goes to the Kernel Panic error but it has also gone to Manual Mode once to try and install the updates but then it fails to mount any partition.
I've tried installing Lineage OS (I used it before I went back to stock os) through TWRP and I also got the same errors. I was unable to mount any partitions and left the phone without a battery for a few a day.
When I tried again just now I was able to mount the partitions but installing Lineage OS or stock OS was still not possible and it gave me the same errors again.
Is there anything I can do to fix this?
First error after boot loops: imgur.com/a/ZOTfR
Errors on TWRP: imgur.com/a/qYqsY
Manual install in recovery: imgur.com/a/YHeyS
Another error: imgur.com/a/xPHdm
EDIT: After trying for three days, it suddenly booted. I can boot to the OS but the phone still crashes and boot loops every time. If I go to recovery and wipe cache it will boot again. What can I do to stop it from crashing and going back to boot loops?

Can only boot normally, not fastboot or recovery

I rooted and changed kernel on my P9 lite single sim in order to use OTG, but then went back to full stock for OTA update.
Phone downloaded it but when it reboot to install, instead of booting recovery mode started a boot screen loop.
At this point, I can just let it go out of battery and then reboot in normal mode.
FASTBOOT DOESN'T WORK, as well. Both fastboot and recovery mode are broken. Both came up in a boot screen loop.
How can I solve this?
Thx.
The problem is, if I try to update with OTA, that the phone enter in a boot screen loop. Until the battery is down.
No recovery, nor bootloader.

Stuck in bootloop

So my phone is stuck on bootloop.
I believe it ran out of memory because it kept throwing memory error and I ignored it.
Is there anyway to recover data without flashing it? Because there are some data I haven't backed up.
I'm able to access recovery mode and fast boot.
Thanks in advance.

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