Page 1 of 1

[SOLVED] Screen completely black on newest pcb + screen combo

Posted: Thu Dec 07, 2017 4:50 pm
by wormwoody
I think everything else works because i hear the intro audio through the speaker. Maybe it is just a sd card bug or worst case a dead screen.

Re: Screen completely black on newest pcb + screen combo

Posted: Fri Dec 08, 2017 1:08 am
by YaYa
Try to resit the flat cable, you may have a bad connection ?

Re: Screen completely black on newest pcb + screen combo

Posted: Fri Dec 08, 2017 2:53 am
by Helder
Be sure you reflash the SD and also it's likely the ribbon needs to be reseated or you have a bad connection on the Screen connections.

Re: Screen completely black on newest pcb + screen combo

Posted: Fri Dec 08, 2017 7:25 am
by wormwoody
Thanks for the quick answers, i'll reflash the SD and try again! Is this the latest image? http://www.mediafire.com/file/1w88746v4 ... v4.img.zip

Re: Screen completely black on newest pcb + screen combo

Posted: Fri Dec 08, 2017 7:37 am
by YaYa
Yes it is !

Re: Screen completely black on newest pcb + screen combo

Posted: Fri Dec 08, 2017 2:54 pm
by wormwoody
Still not working...

Re: Screen completely black on newest pcb + screen combo

Posted: Fri Dec 08, 2017 2:59 pm
by YaYa
If you tried fresh image + reseat the ribbon cable then your last option is reworking the solders pins of the screen

Re: Screen completely black on newest pcb + screen combo

Posted: Fri Dec 08, 2017 4:37 pm
by Helder
Post pictures of your wiring and also do you have a multimeter to test the GPIO connections?

Re: Screen completely black on newest pcb + screen combo

Posted: Tue Dec 12, 2017 4:57 pm
by wormwoody
Update: I got myself a continuity tester aaand the problem was, you guessed it: bad GPIO connections. I guess i ain't the king of blind soldering. :oops: