New screen stays black even after manual update

[AnotherElk]

@looking4fairphone2

While comparing the old and the new screen’s backside I have noticed two differences

There are differences, and they are not a problem in general …

(How to recognize) the new FP2 Display Module

We heard about them a while ago, some days ago they were mentioned by a blog post, and since no one here really knew how to recognize them, here you are: [image] [image][image] (left: old, right: new display) Differences I am aware: The gray of the back is slightly lighter The writing is a lot sharper The above marking “C2” Not affected by this problem (Yay!) No bright spots so far You’ll need a recent version of FPOS/FPOOS/Lineage/Ubuntu/TWRP. Otherwise it will only show a blue screen. …

@looking4fairphone2

wiping my phone and installing switchers

Would not work, because switcher files need an installed OS to switch from.

@looking4fairphone2

I wasnt sure what exactly that update according to this guide was for, the OS or the Fairphone OpenOS.

Fairphone OS.
Anyway, if you really followed this guide faithfully, you should have had a phone running Fairphone OS 18.04.1. This should have worked for the new display.

For the new displays version numbers are important.
TWRP as well as Fairphone’s OSes require a minimal version number where support for the new displays was built in.
A new display will stay blue with official TWRP older than 3.1.1-1 or black with Fairphone OS or Fairphone Open OS older than probably 17.08.1. (I would suppose the TWRP included into Fairphone Open OS would work for the new display since probably 17.08.1, but I don’t know whether they followed the official version numbers with that).
That’s why the installation guide you linked to explicitly handles the case of a black display.

So, options:

You could install the latest official TWRP release, just follow the “Fastboot Install Method (No Root Required)” at twrp.me.
This should work.

You could follow the guide you linked to, but with the corresponding current “Manual installation” file for Fairphone Open OS (not OTA, not switcher) to get Fairphone Open OS on the phone even with a black display.
This should work.

You could have a look whether you happen to have fairphoneangels in your vicinity, who could perhaps check with another new display whether the problem is software or hardware.

You could contactsupport .