Hacking Switch lite bsod after sx lite removal

xHR · Sep 6, 2020

hartleyshc said:
It's something with your nand. Were you ever able to boot into the sx bootloader? If you actually had the sx lite installed and operational and didn't run the clean up function before removing the chip, that will cause it.

If you never had it working in the first place then you probably still have some points bridged someplace. Again, just post some pics of your soldering area. It can make diagnosis a million times easier for everyone.

Sent from my ONEPLUS A6013 using Tapatalk

I found where I screwed up. I have damaged DCDC controller when mound shield back

dfd82 · Oct 25, 2020

Hello, I have the same problem. How did you solve it?
The dcdc driver, what is it and how can I check it?

rdlf4 · Oct 25, 2020

hartleyshc said:
It's something with your nand. Were you ever able to boot into the sx bootloader? If you actually had the sx lite installed and operational and didn't run the clean up function before removing the chip, that will cause it.

If you never had it working in the first place then you probably still have some points bridged someplace. Again, just post some pics of your soldering area. It can make diagnosis a million times easier for everyone.

Sent from my ONEPLUS A6013 using Tapatalk

You sound experienced with soldering.
How would you go about removing the solder leftover around each capacitor next to the GPU?

rdlf4 · Oct 25, 2020

hartleyshc said:
The modchip modifies the boot0 and boot1. If you remove the chip without going into options and selecting "clean up" before you uninstall the chip, this is what happens.

It also generally means some sort of nand issue. But in the case of sx core/lite, it most likely means the boot0/boot1 wasn't reverted to it's unpatched state.

Also you can't just swap nand from one device to another. Even in the case of people installing much larger nand chips, it's not just plug and play, you have to restore your previous full nand backup from one chip to another.

For your issue, I would go back, install the chip in Mariko, try a different sd card, something. Make sure you have the latest 3.0.4 boot.dat on the root of the card and make sure the chip firmware is updated to 1.3.

Sent from my ONEPLUS A6013 using Tapatalk

Let me get that right, does the "backup Sysnand" (or dump sysnand IIRC) from SXOS actually back up the ORIGINAL (unpatched) sysnand or the patched-by-sxos one? If the former, is that along with running the cleanup function the only requirements prior to removing the chip from Switch Lite or are there more steps before starting desoldering?

hartleyshc · Oct 25, 2020

rdlf4 said:
You sound experienced with soldering.
How would you go about removing the solder leftover around each capacitor next to the GPU?

I would just use more flux and get the solder to stick to the tip of the iron. I wouldn't use a desoldering braid in this case.

rdlf4 said:
Let me get that right, does the "backup Sysnand" (or dump sysnand IIRC) from SXOS actually back up the ORIGINAL (unpatched) sysnand or the patched-by-sxos one? If the former, is that along with running the cleanup function the only requirements prior to removing the chip from Switch Lite or are there more steps before starting desoldering?

Yes, it backs up the unpatched files (technically it removes the patch from the file then backs that up).

All you have to do is run clean up, or run genuine boot, then shut the system down and remove the chip.

Sent from my ONEPLUS A6013 using Tapatalk

rdlf4 · Oct 26, 2020

hartleyshc said:
Yes, it backs up the unpatched files (technically it removes the patch from the file then backs that up).

All you have to do is run clean up, or run genuine boot, then shut the system down and remove the chip.

I decided to bank on that theory of yours, so I managed to resurrect my Switch with SXOS and its wires connected.
One of the issues I was having with SXOS 3.0.5BETA was that it no longer allowed my Switch LITE to go to sleep. I couldn't work around that and the fact it was just ONE of the issues, not to mention the memory card ones.. ugh
Anyway, I performed the cleanup. It successfully completed. Then I proceeded to disconnect the wires of the hacking board (although it's still soldered onto my system) and I can now finally boot my system without having to desperately hope for it to do so.
And speaking of that sleep-mode issue (SXOS would immediately shutdown my console, whether it came to sleep after some time of inactivity or when I pressed the POW button), I checked my sysnand's settings and it was still sitting on 10.0.1. So I figured updating the firmware could fix this, maybe? So I did the upgrade, system restarted successfully without my intervention and it got to the welcome area. Then I pressed the POW button, it went to sleep. Pressed it again and it came up. But it was short-lived. I tried it again, but this time it shutdown my device.
Now, whenever my system goes to sleep, it shuts down and I have to keep my finger pressed down on POW for 14 seconds. After that, I'm able to turn it on. My question is, is that because the board is still soldered on? Any way to fix it now that I'm back to OFW? I just want that thing gone from my system, its led still lights up a blue-ish white upon powering it on and be able to go to sleep and out of it again.
Side-quest: Would you take my Switch Lite and get the hacking board removed for me? I'll pay you for your services.

rdlf4 · Nov 11, 2020

hartleyshc said:
I would just use more flux and get the solder to stick to the tip of the iron. I wouldn't use a desoldering braid in this case.

Job is done, modchip has been removed.
I did lose one capacitor below the APU (the first from left to right) - not sure which one if I should replace it with:
* ‎C0603X5R1A104K030BC‎
TDK Corporation
CAP CER 0.1UF 10V X5R 0201

or

* 02016D105MAT2A‎
AVX Corporation
CAP CER 1UF 6.3V X5R 0201
============
Also, I lost this other capacitor, close to internal memory chip:

Would you happen to know its description?

Hacking Switch lite bsod after sx lite removal

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