The issue you describe appears to be caused by kernel incompatibilities between certain partitions of the phone.
The fact that TWRP does not have the screen glitching issue implies that the kernel embedded in the TWRP image you flashed IS compatible, but perhaps the kernel within your boot image is NOT.
My first question would be:
You mention that you rooted your phone from fastboot.
1. patch the stock boot image on your phone or
2. flash a pre-rooted boot image to your boot partition or
3. Flash a pre rooted ROM to your phone
If you answered #2 or #3, then my secondary question would be:
Specifically which boot image or ROM did you flash to your phone ?
---------- Post added at 08:35 PM ---------- Previous post was at 08:32 PM ----------
I did not get the edl package, but I really want it and of course his account is suspended.
Anybody have it ?
Also this method should be capable of working on your phone, as it is a cv1 device.
You may have to downgrade the firmware to Nougat before proceeding if the device is currently running Oreo.
If the device is currently running Oreo or later, you can downgrade the phone to Nougat using the LGUP utility
I have one and it wont reboot to fastboot,
and so I think I need the Lk image from the nougat version,
mines on oreo.
any help for this?
I know how to downgrade the lk but id need a copy from a different device...