Thread: Trying to unbrick a zumo 220

Originally Posted by smokefree

OK, but from post #1 (Edit 2) we know that the zumo does not read from the microSD voluntarily. I needed to perform the trick Neil described in post #4. Would that be the same procedure for this 0x3E version of 14.bin file?

That trick is used for running update.txt files when fw_all.bin crashes.
So you should run update.txt using that trick. And update.txt should contain command xrgn,14,1:/14.bin.
And SD:/14.bin should contain the required amount of 0x3E bytes.