Mickey
August 16, 2022, 1:42pm
1
Hello,
I’ve bought a Switch lite and it came with a blue screen issue.
I’ve reflow the CPU and RAM, the reflow seems to went well but after reassembly i’m greeted with a black screen.
The console is taking 15V 0.47mAh from the power supply.
When i press the power switch, backlight is on and i need to press for 12 seconds to turn the console off.
No sound
Can someone please help me ?
Thank you
zyrex
August 17, 2022, 1:40am
2
Can you make a photo of your CPU?
Its still possible that other components are faulty, like the M92 or the fuel gauge
Mickey
August 17, 2022, 9:37am
3
Thank for helping
I cant upload “media in a post”
Mickey
August 17, 2022, 10:36am
6
M92 look ok, no caps are short
MAX77 look ok too, some low resistance around but no short
Do you have another idea ?
zyrex
August 17, 2022, 1:10pm
7
If you Post a photo or link to the photo I can Check if you burned the cpu
Also check if the console is in RCM Mode when you plug it into the PC with TegraRCM opened
Mickey
August 17, 2022, 1:51pm
8
I manage to upload this picture
I really dont think i’ve burned the cpu
Thank for your help.
zyrex
August 18, 2022, 12:19am
9
It’s not really good to see, but the sealing around the CPU die looks brown to me.
On a normal CPU it’s grey/blue.
This can be an indication that it went to hot, too much heat got applied for too long.
I would change M92 and the fuel gauge, they can (and Do often) both fail even there are no shorts around. If this fixed your problem, than I it’s Most likely a dead CPU.
Have Luck!
Mickey
August 18, 2022, 1:40pm
10
Thank for your help.
I’ll change M92 and the fuel gauge as soon as i received parts.
Hopefully the cpu is ok.
I’ll close the topic for now and order parts.
Again thank you