Hacking Hardware Copying System Data from N3DS XL to O2DS. How can I do that?

[whiteglovian]

TL;DR, N3DS has a damaged screen. Its a minor black spot but is rather distracting regardless, after it was accidentally caught by heavy furniture. Thank God it was closed.
I already ported my 3DS system data to Citra, as well as most of my saves, however I want to copy over my 3DS files in case the problem either gets worse on the N3DS, or my O2DS gets damaged as well.
I'll very likely find a repair shop eventually that can deal with this, but in the meantime when money is tight, I want a temporary solution. Any help is appreciated!

 

[The Real Jdbye]

Screens can be replaced without any soldering and they are cheap to buy (except apparently the new 2DS which replacement screens are expensive for), you can do the repair yourself.

 

[whiteglovian]

Screens can be replaced without any soldering and they are cheap to buy (except apparently the new 2DS which replacement screens are expensive for), you can do the repair yourself.

Unfortunately, I don't know how to take the screen off, put it back, or use/mess with ribbon cables

 

[The Real Jdbye]

Unfortunately, I don't know how to take the screen off, put it back, or use/mess with ribbon cables

https://www.ifixit.com/Guide/Nintendo+3DS+XL+2015++Upper+Screen+Replacement/86336
https://www.ifixit.com/Guide/Nintendo+3DS+XL+2015+Lower+LCD+and+Touchscreen+Replacement/86283
Here you go. Lower screen is very easy to replace, upper screen is a bit more involved since you have to disassemble the unit fully, but still doable.
As for the ribbon cables, just be careful not to put strain on them when you're working.

 

[CoolMe]

As to copying system data from n3ds system to an old 2ds, you can't do a system transfer from a new series 2ds/3ds to an old one. So your best bet is reinstalling, or redumping games, your saves etc.
As for your NNID, you need to make a new one too..

 

[whiteglovian]

Ty!

 

[joemama_is_overused]

What about just taking out the SD card and putting it in to the old 2ds

As to copying system data from n3ds system to an old 2ds, you can't do a system transfer from a new series 2ds/3ds to an old one. So your best bet is reinstalling, or redumping games, your saves etc.
As for your NNID, you need to make a new one too..

 

[CoolMe]

What about just taking out the SD card and putting it in to the old 2ds

You can use the sd card anywhere of course, just make sure to remove the old Nintendo 3DS folder first as you won't need it. And the same still applies (what i said in my previous comment).

 

[Kwyjor]

I already ported my 3DS system data to Citra, as well as most of my saves, however I want to copy over my 3DS files in case the problem either gets worse on the N3DS, or my O2DS gets damaged as well.

What, exactly do you want to copy? The only data that's really unreplaceable is your save data, and you can back that up with Checkpoint. Almost everything else can be re-downloaded; Nintendo can move your NNID to a different system if you call them up.

If you're talking about doing a System Transfer, then that is quite impossible with official tools in this case, and unofficial tools can't quite do the same.