Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > PocketBook


Thread Tools Search this Thread
Old 09-25-2023, 10:53 AM   #1
Junior Member
Fajn began at the beginning.
Posts: 1
Karma: 10
Join Date: Sep 2023
Device: Pocketbook 627 (Touch lux 4)
Pocketbook 627 - Too high contrast after screen replacement

Hi, last week I have replaced a screen on my 3 years old PB 627 (Touch Lux 4) and to my and vendors surprise the screen displays images way darker than it should.
From my experience it seems that the screen is being overdriven/volted as it is ghosting af and compression artefacts on pictures are quite visible. But a simple screen refresh gets rid of them completely and the screen is snow white, which suggests that the screen is fine and there is something else going on.

I went from screen EX060XCD to ED060XH7 which should not make any difference as the only difference between these two is/should be where the capacitive touch layer is relative to the screen (if it is on top or below the glass layer). Otherwise it should be identical e-ink panel.

Did anyone else experienced this issue?
Is there some service/secret setting in the system, that I can change so that it fixes the problem? OR Can it be only dealt with on a HW level aka some resistors or whatnot?

If it can be changed via system settings which are only accessible via jailbreak/root of PB I am open to try that as well.

On the left is the new screen and on the right is the original device's screen.
Attached Thumbnails
Click image for larger version

Name:	Abec5ff60c64c4a2896a5e9fe39913ad8O.jpg
Views:	52
Size:	52.4 KB
ID:	203948   Click image for larger version

Name:	A51f57690cbb54068800e75e1b1743b3cC.jpg
Views:	53
Size:	72.9 KB
ID:	203949  
Fajn is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dutch dictionary for Pocketbook 627 jedukie50 PocketBook 6 07-29-2023 04:59 AM
PocketBook 627 Touch Lux 4 vs Amazon Kindle 2020 LucasJ98 Which one should I buy? 6 04-03-2021 04:29 PM
Pocketbook touch screen replacement toml PocketBook 0 08-11-2013 01:54 PM
903 Screen PocketBook lost contrast when battery went low dtanis PocketBook 2 12-26-2011 10:02 AM
iLiad Low contrast after screen replacement Qxr iRex 11 04-22-2011 03:00 PM

All times are GMT -4. The time now is 09:29 PM. is a privately owned, operated and funded community.