JollaC backlight led problem with black screen

asked 2017-08-24 11:51:34 +0200

harry gravatar image

updated 2017-08-24 18:32:23 +0200

On my JollaC I think right from when I got it there are bright vertical stripes when the screen is mainly black, e.g. on the boot screen or on the app menu. Is there a way to debug this? How can I judge whether it is a hardware or a software problem. If I use a screenshot tool on the phone and transfer the captured to a different device there are no stripes. Here is a photo

Same with a screenshot tool image description

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Comments

1

How about a screenshot @harry so we can all see what you see. Are the stripes horizontal or vertical?

Spam Hunter ( 2017-08-24 12:15:48 +0200 )edit

the stripes are vertical and are getting brighter over time. I'll add images later today because I need a second device to take them

harry ( 2017-08-24 14:40:45 +0200 )edit
1

If it is a HW problem it won't show up on a screenshot.

juiceme ( 2017-08-24 16:21:19 +0200 )edit

Is there a way to debug it?

harry ( 2017-08-24 18:38:27 +0200 )edit
1

If you can see it in picture taken from outside, but screenshot is OK this is a sure indicator it is a HW problem, no extra debugging needed.

Could be broken HW on chip level but that is rare, I'd rather believe the display connector or cable is damaged or display/digitizer module itself is broken.

Just send it for repair or replacement.

juiceme ( 2017-08-24 22:26:14 +0200 )edit