Oh no, I think I’ve completely bricked it. I’ve tried the USB stick route (formatted with FAT32) and the Mirror Gen 1 recovery boot/ files but nothing. A flashing blue light and continuous hdd power on. I’ve tried power cycling while holding down the reset for different durations.
I’ve then found some debricking instructions for the Mirror gen2 and followed the guide via Ubuntu Live to make a fresh install and add boot files directly to the drive. No luck.
Is there a Mirror Gen 1 debricking guide? Is it best to follow the My Cloud Gen 1 guide instead of the Mirror Gen 2 guide. Has my writing to mtdblock1 destroyed all chance of recovery?