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ddvk / remarkable2-recovery

recovery tools for reMarkable 2
GNU General Public License v2.0
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chore: add a few notes to documentation #3

Closed darlanalves closed 3 years ago

darlanalves commented 3 years ago

First of all, thank you a million times for this little repo and guide @ddvk!

I spent a whole day trying to get my rm2 back to booting state, after trying so many things it finally worked. In the (frustrating) process I learned 2 important details that were confusing at first for me. Hence the notes.

And a question: where/how did you find these exact configuration to make the imx7 boot work with the pogo connector?

As a fellow hacker, I'd love to see your insights or process on how you figure things out. Probably other folk out there too.

Thanks again for this awesome repo!

ddvk commented 3 years ago

i use the A1 for GND

sure the ID is floating, it is for host mode only

ddvk commented 3 years ago

as for how? i just measured with an oscioloscope, and i assumed there is a way so...trial and error

darlanalves commented 3 years ago

That's next level for me 😄 So I tried A1 or B1 for ground but it would not boot. Eventually, after hours of trying, I think I noticed a slight difference of potential between grounds on each port, so I tried connecting USB-C GND to pogo GND and to B8 with the same wire... and boom!

Then I've got some directions on Discord for forcing an update and the tablet went back to normal.