Nagaa's is a Samsung
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Can anyone test with their install removing a single line at a time and see if they get these error LED colors using the Ubuntu firmware?
Can anyone test with their install removing a single line at a time and see if they get these error LED colors using the Ubuntu firmware?
Other people have said that they tried to boot into hekate with the pico using the leaked ubuntu firmware and were not able to do so, but as soon as they tried an hwfly it worked. I do think their soldering skills are sufficient too. Bad solder joints shouldn't be the issue here.
We also know that the rp2040 can successfully glitch switches with the right coding.
@achm3t Can you please check your emmc memory chip. Which company manufactured the chip?
We also know that the rp2040 can successfully glitch switches with the right coding.
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@achm3t Can you please check your emmc memory chip. Which company manufactured the chip?
The dat0 is used for glitching or is only needed to modify the emmc? If its the second what would happend if we edit the boot0 with the bootloader of hwfly and then remove the dat0 from the chip?
It *might* work, but it might also be using DAT0 to sniff the SDMMC bus, hard to say without source code. Might be using CMD for that though.
That's a great idea! It isn't a permanent solution because you will still need to rewrite boot0 when HOS is updated, but this would actually mak it a great test!
If the pico firmware doesn't use dat0 as one of the timing anchors ,which I don't think it does, I don't see a reason why it shouldn't work!
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If this test fails we will know if the current firmware uses dat0 as one of the timing anchors.
There is no harm in trying that!
Last edited by FruithatMods,
Jumping in to say, I've ordered the required resistors, should hopefully be here soon. What MOSFETs are being used? I'd like to order those too.
Samsung emmc as well based on the part number.
Samsung emmc as well based on the part number.
Ok. Will be able to check in 12 hours from now. But 90% sure it was Samsung emmc there.
Anyway, I have several V2 and lite switches in stock, will try to find one with Hynix emmc. Also I have many oleds, but just don’t want to mess with oled rp2040 installation
, it would be better to test with easier ones.
Last edited by achm3t,
It would be interesting to see it on a Kioxia, on Tafty‘s skhynix both my test code an the ubuntu fw workOk. Will be able to check in 12 hours from now. But 90% sure it was Samsung emmc there.
Anyway, I have several V2 and lite switches in stock, will try to find one with Hynix emmc. Also I have many oleds, but just don’t want to mess with oled rp2040 installation
TheSynthax has a Kioxia and there both mine and the ubuntu fw don‘t work.
Guess I gotta bite the bullet and hook up an SD card reader, hope it doesn't brick this Switch
https://www.tindie.com/products/ignas/emmc-reader-for-hac-emmc/
This one can run at 1.8v if you recompile the Linux kernel and include the correct drivers. By default it works at 3.3v.
https://github.com/ignasurba/mmcblkNX/issues/1
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Alternatively you can use an SD card reader with the low voltage adapter. You will be restricted to 1 bit mode so the SD card reader will need to support that. SD card readers that support 1 bit Mode are quite rare but they do exist.
Last edited by FruithatMods,
I have two readers that support 1-bit mode, and an exploitee.rs low voltage adapter.
Would you mind sharing which adapters you use that support 1bit mode so others can buy one if they need it.
The small black transcend SD card reader which is recommended on Exploitee.rs doesn't support 1 bit mode these days. Only the new revision with a different chipset is available on amazon.
I've got that very same card reader, they definitely don't support 1-bit mode anymore. This is the exact one I use for reading my car's eMMC in 1-bit mode, this rather obscure adapter- https://www.walmart.com/ip/onn-SD-micro-SD-Card-Reader/339922305 no idea where I got it, I definitely didn't get it at Walmart and it's not in my Amazon history.
maybe, haven't really tried. I'll probably just wait until we can do it using the RP2040.
SD card readers which show up as mass storage devices can't be used to access boot0/boot1 AFAIK.
Unfortunately I don't actually have any adapter or card reader that can access boot0 over 1bit mode. If such a thing exists do say so.
FT232H with postal looks promising but it only works in Windows. It would be nice if we had a Linux equivalent which could access the partitions natively without having to clone them.
The adapter which uses a realtek chip is great but it can't be used in 1 bit mode. This one: https://www.tindie.com/products/ignas/emmc-reader-for-hac-emmc/
Using an rp2040 for this is actually a brilliant idea!
On second thought it might not be very convenient to use the rp2040 as a usb emmc reader either. Wouldn't we be limited to the usb 1 speeds of the rp2040? 26kBs isn't a lot of fun when interfacing a lot of data.
It looks like FT232H could be used in Linux with mmc-utils: https://github.com/mhei/mmc-utils
Unfortunately I don't actually have any adapter or card reader that can access boot0 over 1bit mode. If such a thing exists do say so.
FT232H with postal looks promising but it only works in Windows. It would be nice if we had a Linux equivalent which could access the partitions natively without having to clone them.
The adapter which uses a realtek chip is great but it can't be used in 1 bit mode. This one: https://www.tindie.com/products/ignas/emmc-reader-for-hac-emmc/
Using an rp2040 for this is actually a brilliant idea!
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On second thought it might not be very convenient to use the rp2040 as a usb emmc reader either. Wouldn't we be limited to the usb 1 speeds of the rp2040? 26kBs isn't a lot of fun when interfacing a lot of data.
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It looks like FT232H could be used in Linux with mmc-utils: https://github.com/mhei/mmc-utils
Last edited by FruithatMods,
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