I fixed a DS Lite with another DS Lite

So early last month I accidentally bricked DS lite while testing some custom DS firmware (FWNitro to Flashme.) I accomplished bricking my DS Lite to a state where none of the recovery methods would work to boot into the SLOT1 nor the SlOT2. So I used my girlfriend’s DS that I found at her parents’ place to fix mine by hot-swapping the Wifi/firmware chips. Roughly two hours later and now we have two fully working DS lites and I think that’s pretty swish.
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@_v3 It involves booting the working system, desoldering the BIOS chip from both systems, and soldering the broken chip on the working system all while the system is still on.
 
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@Adran_Marit @_v3
The process wasn't too complicated overall, it mostly just requires a lot of patience and a gentle hand.
I used a tri-wing screwdriver and small jewelry Phillips head screwdriver to remove the back both DS Lites and put everything aside. From there, I popped out both of their bios chips, this loosed the tape under them to make it easier to hot-swap, the bios chip is the chip under the little spongy block and with the black cable attached to it. Once you have the bricked chip removed from the first system and the working chip loosed, you tape down the battery and plug in the power cable (just to make sure the battery stays charged and secure with tape.) Boot up the system like normal (you might need to set everything up again due to the system losing power,) and boot into your flashcart. From there startup flashme or noflashme, press X,B,X,B and get to the screen where it says 0% and is beeping. This is the fun part, turn the system over and gently remove the working bios chip, making sure to not loosen/knock out the battery, touch anything that might short the system, etc. If you did this right the system should still be running and you will have the working bios chip in your hand. From there, press in the bricked bios chip and attaching the black cable, you should be good to go if everything is secured to which you should be able to the flashme process. If everything goes well, flashme will start fleshing your bios chip and you should have working DS bios chip. From there you can choose where you keep those chips. You can detach the repaired chip and put it back into its original system or put the previously working chip into that system, etc. Point being, you now have two working bios chips for your systems.

@The Real Jdbye
there is no soldering involved, the chip is actually just clipped in there and can be removed by hand.
 
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@Lilith Valentine, alright thanks. So all I need is a 2nd DSLite and some patience. BTW you mentioned there is a SLOT1 solution for repairing it, does it involve a PassME device??
 
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@_v3
You need a second system that is working for this all to work. If you were able to flash anywhere past 1%, then it should have flashed a recovery setup. Boot the system holding Start+Select with a flashcart in SLOT1 and it should boot into that cart.
 
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Heh didn't know you could do this with a hotswap. I mean it makes sense that you could (the firmware is not so much accessed during games, and beyond that flashme or its removal tool doubtless put it in a state that is even less likely to trouble things) but I don't think I have ever seen confirmation before.

Doubtless easier to pull off than ppflash*, especially in the modern world where parallel ports are rather rare, too.

* https://www.darkfader.net/ds/ for those that might want it.

That said I am somewhat curious. If memory serves the mac address is firmware derived (or at least stored and used from it -- the only DS ban I am aware of happening being dodged by tweaking this). Can you grab the current ones from each (might want to use two different APs as not all in the modern world handle mac collision that well) and see what they are?
 
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i did something similar. i had bricksd my dsxl and ended up buying another dsxl with a broken screen. then i swapped the motherboards to get the dsxl working again. it was much cheaper than buying a new motherboard itself. i love it.
 
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@Lilith Valentine Mine died on 15-ish% and tried the start and select method but it wouldn't boot to my SCDS2, would an original DSTT do the job??
 
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G
That's awesome, I had no idea the bios was on the same board as the wifi module.
 
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The Real Jdbye said:
@FAST6191 Nintendo WFC is dead so not much of a concern these days.
It was more the mac address collision issue I was concerned with, especially if this is to become a fix for people.
That said what do the various replacement services do here?
 
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