New UBports edition - black screen (backlight) only
#8
(08-03-2020, 09:50 PM)SwordfishII Wrote:
(08-03-2020, 09:45 PM)BBreeziN Wrote:
(08-03-2020, 09:43 PM)SwordfishII Wrote:
(08-03-2020, 07:17 AM)BBreeziN Wrote:
(08-03-2020, 03:56 AM)drpi Wrote: Flicker is a known problem at boot time.
Keep your phone connected on the charger for some time. Then try to boot it again.


Thanks for the fast reply, but it's not just flickering anymore, the screen never comes on at all. I left it plugged in overnight, but it still will not do anything (no LEDs, backlight, nothing) without being plugged in. It kind of seems like there are two issues here, the screen not working, and now the battery not charging or working.

Might be a silly question... But did you pull out the plastic tab covering the battery terminals?

You have to pop the back cover and remove the plastic barrier on the battery. Seems like that would cause the screen to not work and the battery to not charge if it's still in place.


Yes I did. It was holding a charge, running off the battery, and indicating a 90% battery during the 1 or 2 boot cycles where the screen was actually working. Any other ideas?

Bad battery or the orientation of the battery is wrong maybe. Do you have a multimeter to check the battery and the pins on the phone while plugged in?

If not you could get a new battery to eliminate or more likely confirm the battery as the issue


4.1 volts on the battery disconnected. I plugged in the phone without the battery and see a pulsing 4.2 volts on the pins. Now, for whatever reason, it's powering up again (I'm seeing the LED sequence) with the battery only, not plugged in. I hear the auto focus click on startup too, but still just a black backlit screen, no image.


Messages In This Thread
RE: New UBports edition - black screen (backlight) only - by BBreeziN - 08-03-2020, 10:24 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
  PinePhone Beta Edition will not boot from MicroSD card Timothy_Ecc 25 11,854 08-01-2022, 04:39 PM
Last Post: drlizau
  Severe screen flicker + occasional ghosting | Pinephone Beta edition legowave440 5 722 07-25-2022, 07:35 AM
Last Post: bedtime
  Screen dying already? marcih 152 60,739 07-10-2022, 04:21 PM
Last Post: alienklown
  Double Image on screen Arvis 2 225 07-03-2022, 06:27 AM
Last Post: Avisando
Question Upgrading a 2020 Community Edition Pinephone? danimations 5 1,127 03-10-2022, 08:18 AM
Last Post: danimations
  Screen has pixel-thin horizontal stripes that are black or get stuck in the past yasmi 5 1,480 03-08-2022, 12:25 PM
Last Post: jopple
  How hard to replace screen? Zebulon Walton 28 17,320 01-18-2022, 12:21 AM
Last Post: henrythemouse
  pinephone screen Uturn 2 806 01-14-2022, 01:15 AM
Last Post: Uturn
  Screen replacement Csanderson0313 4 1,248 01-10-2022, 09:26 PM
Last Post: Csanderson0313
  Top of screen and USB port malfunctioning Severinus 0 457 12-14-2021, 07:28 PM
Last Post: Severinus

Forum Jump:


Users browsing this thread: 1 Guest(s)