Problems after modchip install. Corrupted EMMC?

[patrick_wv]

Hello alltogether.
I've installed a RP2040 modchip into my switch lite, but that seemed to cause some problems..

So everything I did:
- Soldered the RP2040 into the switch lite with the two provided ribbon cables.
- Had problems with the second ribbon cable (Not the cpu one), because it seemed to be manufactured poorly.
- The switch turned on and showed the no sd card message from the modchip. But after restarting it just showed a blue screen and no mod chip anymore.
- I've uninstalled the modchip and still got a blue screen - I assume it corrupted the emmc..
- I then checked the second ribbon cable and it had connection issues.
- So i just used wires to replace the second ribbon cable and now the modchip boots again and shows no sd card.

So now im trying to get hekate to boot, because i want to try to get my prodkeys etc. and fix the seemingly corrupted emmc.
But when I put hekate on my sd card and try to boot I just get a red screen with a lot of artifacts..
Do you guys maybe have an idea why hekate is not booting?

The switch lite was on firmware 19.0.0 and I've used the most recent hekate build with 19.0.0 support.

Post automatically merged: Oct 14, 2024

Well I‘ve had a look around the board, especially around where I loosened the APU heat shield, if I can find damage that maybe causes my strange problems.
And it looks like i broke of an edge of the max chip under the APU.

Could this be the cause why hekate doesnt boot and only shows artifacts? And why the Switch shows a BSOD when trying to boot OFW? I think that would be weird, because the no sd card screen works, but who knows. Maybe the no sd card screen doesnt use all the hardware…

 

[thesjaakspoiler]

No SD card usually just means that the Switch can't access your SD card or can't access the payload.bin file.
So it could be something physical like a bad connector or bend pins (just do a visual inspection).
Or the sd card got corrupted somehow (check with a pc).
You could also try with another SD card.

The only way to see whether the broken edge of the max chip does have any effect, is to measure the voltages around it.
If they are all good then you might have been lucky.
But one never knows how deep this crack runs inside the chip itself.
In the Picofly sticky thread someone had even a smaller dent but had to replace the chip.

Screen artifacts (besides a blue/purple screens) that look as if the Switch is trying to show some screen are usually caused by the LCD ribbon not seated properly in the connector or damage to the connector/ribbon.
In some cases it can the ram modules when the PCB has warped somewhat due to excessive heat or age.
The BSOD is usually a messed up emmc, shorts on the voltage line, or more serious damage.

All the experts are in this sticky thread so when nothing helps, please throw your questions in that thread.
https://gbatemp.net/threads/picofly-a-hwfly-switch-modchip.622701/

 

[NauticalWater274]

@patrick_wv Did you resolve this issue? I'm running into a similar issue, when I try to get into hekate I get a bunch of static/artifacts on the screen.

 

[Einspruch]

Wonder if he got a faulty Mod Chip, I've heard there are cheap clones of the picofly around that brick switches, but perhaps that was only for the OLED models.