Re: Samsung QE50Q67T bootloop problem

For some reason the tv started to not show a picture at all. It simply started the bootloop right away. Even with the before-mentioned pins taped off. I managed to stop the loop again by taping of a pin on the ribbon cable going into the main board. Pin 30 from the bottom. Any ideas? Or is it even fixable?...

Re: Samsung QE50Q67T bootloop problem

And what does that tell me?

Re: Samsung QE50Q67T bootloop problem

I've tried checking for hot components, but nothing seems to heat up. I will try going through all the component to see if anything is faulty.
About the two contact pins that can stop the bootloop when taped off. I seems to be FB_1 and FB_2 but i'm no completely sure what that tells me. I can find very little information about these board.

Re: Samsung QE50Q67T bootloop problem

It still loops and there are a lot of horizontal lines on the screen.

Re: Samsung QE50Q67T bootloop problem

Do you think its possible to find any kind of schematics of the boards? I haven't had any luck myself.

Hey everyone.

I have a Samsung QE50Q67TAUXXC (same as Q60T i think) which is experiencing constant bootloop. The picture comes on at first but then it begins to reboot again and again. I tried taping off the pins one by one on the ribbon-cable connecting the two panels at the bottom - and found that the bootloop stops when 1st pin from the left is taped off and the same if the 46th is taped off. (See picture). But unfortunately, I get no image on the screen in those cases.
The bootloop also stops when the whole right side is disconnected. Which makes me believe the problem...

Hi! I'm a bit new to this whole repair world. But this is what i'm working on:

A Macbook Pro A1990 (820-01814) from 2018. It has no image – or backlight for that matter.

No history of liquid spills or anything. It's fully functional on external monitor - and the webcam works.. But it doesn't seem like the internal display is even detected.

Sometimes the backlight lights up, when booting into recovery mode. (No image still)
That's the only progress I've gotten.

I tested the panel on another Macbook, and the display worked perfectly....

Re: New Members - please post your introductions here

Adam here - from Denmark. Love this forum!