Hey everyone, hope you’re all doing well!
I’m reaching out because I really need some help and I’m not sure what exactly to look for.
I have a Switch OLED that seems to have an issue with the SD card speed. It’s showing very low read/write performance. I should mention that the problem is definitely not with the SD cards themselves, since I’ve tested with two different SD cards across three different consoles.
I also own a Switch V2 and a Switch Lite, and both work perfectly fine with the same SD cards.
I’ve attached some benchmark screenshots from Hekate to show the speed differences.
On the consoles that work fine (the V2 and the Lite), both SD cards show a Current rate of 104 MB/s (208 MHz).
However, on the OLED, the exact same cards only show 25 MB/s (50 MHz).
The modchip installed on the OLED is a Picofly Raspberry Pi RP2040, purchased from AliExpress.
I’ve already updated both the modchip firmware and the Switch firmware.
Does anyone have any idea what could be causing this?
What would you recommend checking next?
I’ve already inspected the modchip installation and couldn’t find any visible issues also i the card reader borad it seems to be ok and super clean..
I’m starting to think something might be wrong with the motherboard.
Any help or suggestions would be greatly appreciated!







I’m reaching out because I really need some help and I’m not sure what exactly to look for.
I have a Switch OLED that seems to have an issue with the SD card speed. It’s showing very low read/write performance. I should mention that the problem is definitely not with the SD cards themselves, since I’ve tested with two different SD cards across three different consoles.
I also own a Switch V2 and a Switch Lite, and both work perfectly fine with the same SD cards.
I’ve attached some benchmark screenshots from Hekate to show the speed differences.
On the consoles that work fine (the V2 and the Lite), both SD cards show a Current rate of 104 MB/s (208 MHz).
However, on the OLED, the exact same cards only show 25 MB/s (50 MHz).
The modchip installed on the OLED is a Picofly Raspberry Pi RP2040, purchased from AliExpress.
I’ve already updated both the modchip firmware and the Switch firmware.
Does anyone have any idea what could be causing this?
What would you recommend checking next?
I’ve already inspected the modchip installation and couldn’t find any visible issues also i the card reader borad it seems to be ok and super clean..
I’m starting to think something might be wrong with the motherboard.
Any help or suggestions would be greatly appreciated!

















