K53SD does not POST after reflow

[orientalsniper]

Hello all, this motherboard had been having issues with damaging screens (showing green tint), changed LCD and LVDS. I tried a reflow, but laptop no longer works. (from this thread)

Power ON light is on, but I can't manually turn it off. It's stuck there until I unplug power adapter. Also fan doesn't power on at all.

Help

[Learn2Day]

Re: K53SD does not POST after reflow

This is proof a reflow isn't always a/the best medicine. When done wrong or on the wrong symptom, you're further damaging the board.

Did you test VGA output to check if green tint persisted? Doesn't really matter. Right now your best option is reball GPU, and if not solved, further diagnose it.

Good luck.

[orientalsniper]

Re: K53SD does not POST after reflow

Thank you for your reply, I created a new thread to avoid confusion, since this is totally a new symptom.

I'm going to reflow GPU again, I don't have stencil for the reballing.

[spidey]

Re: K53SD does not POST after reflow

reflow doesnt work, first measure the lvds pairs if any of them short that means you have a short with north or vga. you have to confirm it from the schematics. And need to change that chip. But mostly north, i think you are on the wrong chip but, also damaged that one.

[orientalsniper]

Re: K53SD does not POST after reflow

Does it exist a schematic for it? I tried looking for one, but couldn't find it.

[orientalsniper]

Re: K53SD does not POST after reflow

phew! did a heavy reflow on gpu only, it turns on now, but with the green tint issue still.

[DJduck]

Re: K53SD does not POST after reflow

You will need to re-ball it. If you can afford it, its usually about 100$ or so, just guessing. Or you can do it yourself. Or get a new board. Re-flow or ball doesn't work always, sometimes the GPU itself gets damaged.