Firmware update for Thingy 91

[Andrew8691]

I cant seem to get the Thingy 91 into boot MCU mode, so that I can update it to the latest firmware.
No matter how many times I try turning the unit off and powering up with the larger press button held down, the firmware programming returns an error complaining that the unit is not in BootMCU mode.

Is there anything else I could try?

[Albrecht Markus Schellenberger]

Hello Andrew,

I’m very sorry to hear that. Let us see if we can help you here.

What Thingy:91 hardware version are you using? This should be visible on the white label located on the PCB.

What image are you trying to flash and what image is flashed to the device currently?

Thanks and regards,

Markus

[Andrew8691]

I've since tried the process using a Windows PC and got much further (than with the Mac) but still hit an error.