Gaming Repairing the DS - the console won't start

[Deques]

The upper screen on my DS is broken so I decided to replace the screen. I bought a new screen from ebay and followed the tutorials that I could find on Youtube. After replaced the screen and assembled the console I tried to start the it. But it doesn't work. The power LED is lit for a second and the goes off, and the lower screen flashes once.

I suspect that the DS thinks that the cover is closed so it won't start. So I wonder if there is part on the DS that checks whether the cover is closed and how to fix it.

 

[Amez]

Hey
If the bottom screen flashes it means there is a problem with your top screen.

Are you using the NDS 1st gen console? or the DS Lite?

If the NDS 1st gen...
Check that you have the flex cable correctly placed into the slot on the motherboard and then the same for the other little circuit board in the top half that the LCD also connects to, also check the 2 flex cables from the LCD are correctly placed into the connectors on that little circuit board.

If DS Lite...
Check that you have the flex cable correctly placed into the slot on the motherboard.

Note...
If the console thought the cover was close - the power light would flash on and then go straight off, none of the screens would blink,
Bit of random info - on the NDS 1st gen you can test this by using one of the speakers, hold it just above the "start/select" buttons and turn it on / or hold the magnet over them when the power is turned on.

Amez

 

[The Real Jdbye]

The upper screen on my DS is broken so I decided to replace the screen. I bought a new screen from ebay and followed the tutorials that I could find on Youtube. After replaced the screen and assembled the console I tried to start the it. But it doesn't work. The power LED is lit for a second and the goes off, and the lower screen flashes once.

I suspect that the DS thinks that the cover is closed so it won't start. So I wonder if there is part on the DS that checks whether the cover is closed and how to fix it.

Likely the upper screen ribbon isn't connected properly or the ribbon or connector is damaged. But there are other components that will also cause this if not properly connected, so check anything you disconnected during the disassembly and make sure they're all connected properly.

 

[IC_]

Try reconnecting the top screen cable and make sure it’s fully inserted
I recommend using ifixit for repair tutorials

 

[Deques]

Thanks for the answers. I try to reconnect the screen cable again.

I tried to reconnect the old screen again, but also with same result.