Not booting , Black screen backlight is on

[bigtallviking]

I got my pinephone today. Switched on, it worked ,  did some setting changes, rebooted several time. After a few hours rebooted, then it stop booting up. The LCD backlight is on, the led flashes red green white in the beginning and nothing.  Screen goes to sleep, if I press power the backlight comes on but the screen is black.  Cannot go into recovery mode.  Flashed other OS in  SD same problem. Flashed fedora , lcd backlight does not even come up, after 30 sec led light next to camera  switches on .Strange issue , any idea? Thanks.

Experiencing the same issues as well, was able to boot out of the box and use the OS for about an hour, experienced some screen flickering after enabling the auto brightness feature and the screen went dark. Have not been able to get anything displayed on the screen since, but it does show that the backlight is coming on. I have attempted to boot from SD, boot from jumpdrive, flash a new UBPorts (current version and an older version), Postmarket OS, and PureOS...none will allow the screen to show anything other than the dark backlight. The front LEDs will light up, I am able to telnet to the device using the jumpdrive, the phone will vibrate on boot (Postmarket OS), and the battery has been fully charged. Any advice or ideas would be great...

There appears to be a clock speed issue. Solution for all other distros except UBPorts in the following https://forum.pine64.org/showthread.php?tid=9832

This is occurring on the initial boot, even with the jumpdrive there are no graphics that appear on the screen. Flashing the different clock speed binaries did not resolve the issue, nor did flashing an older version of an OS prior to the DRAM patch (attempted with Postmarket and Mobian to follow the linked page). Is it possible this is hardware related? Or are there any logs that can be accessed via telnet?