@reidfo No I've got everything in try/except loops so it can't crash. This is always when it wakes from deepsleep, instead of running boot or main .py it jumps into dreaded 4s blue flash mode. Grim!

It's fixed!! See post Problems getting L01 into bootloader mode. Cheers, Thomas

Hi @grideagle, Thank you for reporting that, I've reported it to GitBook. The current workaround is to use the "copy" button it the top right corner of the code section.

@dan Yep I have never put anything in boot.py, have always had main.py run without intervention.

@dan Updating the firmware fixed the problem! Both main.py and boot.py run on restart. Thank you :)

@reidfo We haven't gotten to the stage of OTA upgrades, so I hadn't thought about it that way. Thanks for the great tip!

@monersss If you get access to the REPL, you can simply hit Ctrl-C. Otherwise you can use safeboot: Connect G28 with the 3v3 pni, and then push reset. When the LED turns orange, then disconnect the wire. The device will then not execute boot.py and main.py. The documentation talks about falling back to a series of previous versions, but that is nonsense on a Lopy