Homebrew DSi doesn't turn on

[Retroarcade2003]

Hi! I don't know if this is the correct section to write this post, if it isn't sorry in advance, and Aldo sorry forma my tooo bad English. Yesterday i've disassemble my DSi to do an Hardmod, but i've broken the flat cable of the bottom screen... So i wanted turn on the DSi and without mount the "cover" i've connected the battery. But i've connected it with inverted + and -... Now the DSi doean't turn on and the only thing that it do is a orange led that flashes when i connect the DSi to the charge... I don't know if i've broken the motherboard or just the battery, and i don't wan't to spend uselessly money. Thanks in advance for the help and sorry again for my english

 

[Alex4U]

If you inverted + and -, that means you broke already the motherboard...
I don't think there is a way to recover it...

 

[Retroarcade2003]

If you inverted + and -, that means you broke already the motherboard...
I don't think there is a way to recover it...

Thanks for the reply! How i can test if the motherboard is gone?

 

[Oleboy555]

I did this too with my dsi -____-, just buy one of these: https://www.ebay.com/itm/Nintendo-DSi-DPad-Power-Board-Repair-Part-C-TWL-SUB-01-/290862394372 and replace your own one and it will work again.

if you have a dsi XL you need a C/UTL-SUB-01 (I have a working one spare so you could buy that from me)

 

[Retroarcade2003]

OK thanks! I've a normal DSi, i will buy the power board soon, but... Only a thing. I can repair the flat cable of the screen with any method? Or i must buy a new screen

 

[Oleboy555]

OK thanks! I've a normal DSi, i will buy the power board soon, but... Only a thing. I can repair the flat cable of the screen with any method? Or i must buy a new screen

Im not sure if the cable is attached to the screen, but if it is you need to buy a new screen, it is pretty easy to replace.

 

[Retroarcade2003]

Im not sure if the cable is attached to the screen, but if it is you need to buy a new screen, it is pretty easy to replace.

yes is attached, i've tested the screen because i've done a little strap on the flat of the bottom screen and i wanted test the screen. I've turned on the Dsi and the bottom screen was glichted. After i've done the error with the battery, then i must to buy the screen and the power motherboard... Thanks!

 

[Oleboy555]

I reversed my battery and then replaced the power board, then when turning the dsi on the bottom screen would become white and it didnt turn on (better then not turning on at all like before) then I went and secured all the wires extra carefully and it turned on fine.

 

[Retroarcade2003]

I reversed my battery and then replaced the power board, then when turning the dsi on the bottom screen would become white and it didnt turn on (better then not turning on at all like before) then I went and secured all the wires extra carefully and it turned on fine.

Nono, mybe i'm not expressed very well...(and probably yes because my english is reeeeally bad) i've broken the cable of the screen. The flat of the bottom screen, the orange cable have a little crack on it i can't do a photo now.... I massacred this poor dsi