I had trouble performing an OTA update of an 0.8.0-rc.4 app on two devices today that were running 0.8.0-rc.2 with an older version of the app.
It would enter SAFE MODE after the update. I manually placed it in SAFE MODE and tried again with no luck. Also tried to download Tinker 0.8.0-rc.4 with the same result (entered SAFE MODE).
Solution was to OTA 0.8.0-rc.4 system firmware only. At this point, the device came up as expected, running the new app.
How do you OTA update the firmware only?
I tried with particle CLI, but after flashing system-part-1 the device is no longer online, so I cannot flash the other parts. (Using a 3rd party SIM).
Thanks.
Did you wait long enough between the flashing system-part-1 and the next part? It can take some time.