Have you tried downgrading luma3ds to 9.1?
I would never recommend ctrtransfer to fix anything except a brick without nand backup.

Anyway, if further issues, give these guys a shot: https://discord.gg/C29hYvh

 

Yeah, I used that version because it was the one included in the CFW starter pack. It has better compatibility from what i've read, right?
I have also tried the newest version of Luma but it still acts funny :/

I do have my SysNand backup from when I first modded the console, so there's that.

— Posts automatically merged - Please don't double post! —

No, it used to work perfectly :/ It's Picross 3D: Round 2 (USA).
The ONLY thing I tampered with is restoring the save file with the .cia version of Checkpoint, but that's it. The game worked for about ten minutes before doing that.

 

@TurdPooCharger I did all this and it actually booted!

But during the installation of Ocarina of Time using FBI, the top screen started flickering lightly until it shut off with an ARM11 exception error

I managed to install Picross 3D, so I will try to play that for a while and hope it doesn't shut down on me.

UPDATE:

It doesn't boot now
I'll add the dump files below in case it helps diagnose the problem...
The graphical error in Picross happened again when I loaded the new save file I created for the game.

 

@TurdPooCharger
Yes, I did see that thread and was afraid I just might gotten the same type of bad luck hahah

And yes, of course! I can wait until tomorrow.
Besides, that just might work better right?
Could you tell me when its uploaded?

Thank you so much for your help so far!! I hope we can bring this sucker back from the dead

 

@TurdPooCharger Great! Thanks for the heads-up.

I wouldn't mind redownloading everything; would that be better?

UPDATE:

I think it worked!!! So far so good!

I booted up Zelda and it didn't immediately crash, so that's a win for me!

My god, man. THANK YOU! <3 I legit thought I had lost my money haha

I seriously can't thank you enough, man! Thank you for helping me so quickly, too!

P.S. Should this ever happen again... Should I just restore my SysNand file? As opposed to going through the D9 CTRTransfer way?

Anyways, thank you so so much, man! You are way too kind!

 

@TurdPooCharger I was missing the .cia files you mentioned, but I have done everything else you said and it *seems* to be working right, so I hope it stays that way haha

I'm currently trying a DS game with Twilight menu and it's working well so far!

I have now made a Sysnand backup of this setup in case things go south again... Haha

Either way, time will tell if this setup is a winner but I'm pretty optimistic it is. Haven't had any crashes so far, which is phenomenal.

As you said, my celebration might be premature, but either way, thank you so much for the help!

 

Oh dear.

This is almost certainly a hardware problem. We can try one last thing. See below.

That area approximates where the CPU and FCRAM chips are located.

See for reference:

• [ifixit] Nintendo 3DS XL 2015 Teardown
• Step 13 shows the front side of motherboard.

Speculation of Physical Damage
When you put your n3DSXL in your pocket, your walking about to earn PlayCoins ended up bending or flexing the motherboard enough to crack a ball joint under one of those chips.

When the n3DSXL is cool, that broken joint has good contact between the chip and board. However, as you play the system enough, the chip heats up enough to momentarily separate the joint.

Which SysNAND *.bin image did you use?

• If it was the one you made when you first hacked it, that one might be bad if your n3DSXL's 3DS firmware was already came messed up when it was in the previous owner's possession.
• If it was the one you made after CTRTransfer (Type D9), that one might be bad due to carrying over bad data from the restore.

We're going to attempt a simulated Format System Memory without actually deleting your nand's user setup. You need to restore the SysNAND with the image you made after CTRTransfer (Type D9) before doing the steps below.

1. In GodMode9, go in the [1:] SYSNAND CTRNAND and press (Y) on the data folder to [CLIPBOARD] select it.
   • See the top right corner of the bottom screen. If selection mistake was made, press (SELECT) to reset.
2. Back out and go into the [0:] SDCARD ()/gm9/out directory.
3. Press (Y) → Move path(s) → <A> yes → button combo → <A> yes. This will relocate the data folder out of the CTRNAND and put it on your SD card.
   • If you use Copy path(s) instead, you'll have to go back in [1:] drive and delete data by pressing (X) on it.
   • Don't go straight to deleting the data unless you backed up that folder. This contains your personal info like name, birthday, NNID, friends list, etc.
4. Press (START) button to exit GodMode9. You will be greeted with the introductory of creating a new user account. Don't bother making a new account.
   
5. Hold the (POWER) button to turn off the n3DSXL. Turn on the 3DS again, hold (START) button, and go back to GodMode9.
6. Press (HOME) button → Scripts... → CTRTransfer (Type D9) → Bypass Profile Setup → <A> yes → <A> yes → button combo → <A> to continue → Exit.
7. Press (START) button to exit GodMode9. Your 3DS should go straight to booting HOME Menu.
8. Play games that are known crash. Report back your findings.

 

It might be possible to disassemble the n3DSXL and salvage the motherboard by baking or reflowing the ball joints. Repair success rate is a toss up..

Do you know of any electronic repair centers close by to you that has a reflow station or oven?

You do not want to try fixing this in a kitchen oven as the fumes will contaminate your future baked foods.

(not recommended)
There is a DIY ghetto method where you wrap or section off the motherboard using aluminum foil and only expose the chips. Lay the board flat, and do this outside like in a garage. Use a heat gun to bake the chips, a timer to measure duration, and a digital laser temperature gun to make sure the board doesn't get too hot.

***

(recommended)

1. Sell your semi-broken n3DSXL as-is and buy another functional one.

2. Send yours in to get fixed by someone who specializes in 3DS systems.

3. Replace the motherboard:

• [eBay] 2015 New 3DS XL Main board, Motherboard Replacement Part Nintendo WORKING
• [aliexpress] USA Version for New 3DS XL/LL Motherboard Mainboard PCB Circuit Board Replacement parts

 

Do you have any relatives or friends in the United States? I personally recommend selling that n3DSXL, buying a refurbished n3DSXL system directly from Nintendo (see my signature link), and then on your next family visit, pick up the system and bring it back home. (assuming your Mexico flag is the country you live in). Import fee will make the ~US $120 + tax price closer to US $140 at 5% tariff rate.

Depending on your budget, it might make more financially sense buying a replacement motherboard. However, that's super risky if you're not experienced with opening and fixing electronics. A board that costs US $45 from China can take a month to cross over the Pacific. There's also the gamble you might get a dud if it's damaged from shipping.

There's also locally purchasing replacement system if there are any stores that still sells new or used n3DSXL where you live.

 

@LennyTheDefiant, sorry bud. (I believe that) I'm good at finding products at good prices for buyers. Selling goods is another story...

If you want my assessment as a buyer where you told me everything works except for the faulty motherboard, I would not buy that n3DSXL at US $70 if I was one of those people who planned on replacing the board.

(Broken n3DSXL system) $70 + (motherboard from wiigotem, for close proximity) $60 = $130

- vs -​

(official Nintendo refurb n3DSXL) $120 + (~6% FL state tax; adjust rates for states) $8 = $128

***

You might have better luck offering it at around US $50 if it's a special edition n3DSXL. That's a tough price point because Nintendo refurbished o2DS goes for that much before tax (not everyone necessarily cares for 3D or bigger screens).