Hello guys. Sorry for bringing up this thread again, but yesterday I was delivered a bricked OMD M1x and managed to fix it.
1. Get firmware from https://lightsnowdev.com/Olympus/update.html
2. Verify the camera:
a) Set it to "A" mode. b) Remove any lenses. c) Set the power button to "On" position. d) Turn the LCD screen as its viewable from the back of the camera
e) Remove the battery tray, and slide it back into camera.
If the camera lights up, and you see that LCD screen shows image from the uncovered sensor you did it correctly, and you may remove the battery.
3. Loading new firmware a) Format a SD Card, preferably with a different Olympus Camera. b) Create directory "DCOLYMP" and put firmware file there. In case of M1X rename the file to "E1349999.BIN" c) Put the SD card in slot number 1.
The recommendation is that there should not be any other files or directories on this SD card.
d) Press the button "AEL/AFL" and drop the battery tray into camera, lock it afterwards.
If the focus LED turns on, the firmware is loading. The process is finished when it start blinking. Then turn off the camera with power button.
Afterwards I updated firmware normally through OM Workspace.
Hope this helps to someone. The process usually involves "OK" button and I tested it succesfully on my E-PM2.