Hardware 3ds top screen

[Dianapkmn129]

i was swapping my 3ds mother boards, i got eveeything right but the top screen goes black. Please help

 

[SagaP]

Check the ribbon cables that goes from the board to the top screen

 

[Dianapkmn129]

Check the ribbon cables that goes from the board to the top screen

How?

 

[SagaP]

Just see if they are well connected to the board, normally when the screen is black it means the ribbon cable is loose. make sure the cable went all the way trought it´s conector

 

[Dianapkmn129]

Just see if they are well connected to the board, normally when the screen is black it means the ribbon cable is loose. make sure the cable went all the way trought it´s conector

Ive done that but its still black

 

[SagaP]

Well triple check that, because if it is not the conection, the cable is probably damaged, and you have to replace the top screen.
Check for dust or any debris thay may cause a bad contact.
The only way to know for sure if the ribon cable is broken is to extract the top screen and look for any cut or any broken part of it, but extraction is extreamly difficult and you can even damage the other ribon cables so i don´t recomend it.

 

[sith]

What do you mean by "goes black"? it is normal for a time then it blacks out? or it just doesn't come on at all? i would check both the upper lcd connection to motherboard and upper lcd to speaker flex(two connectors)

iirc the 3ds only boots when the upper lcd has a broken or bad connection to motherboard if the speaker flex to lcd connection is also disconnected.

ps. im a newb and may be wrong. you made basically the same post yesterday and its still on the first page. don't spam.

 

[The Real Jdbye]

Edit: Nevermind, I was a day late

 

[Dianapkmn129]

Update: i got the screen working, but now this is happening. some of the buttons are always being pushed without me touching them