Update flashing instructions
dogwood and later are considerably easier to flash (and give more optical feedback) than the steps in https://developer.puri.sm/Librem5/Development_Environment/Phone/Troubleshooting/Reflashing_the_Phone.html#prepare-the-phone
- turn all hks off
- remove battery
- hold vol+
- insert usb-c cable -> red led blinks (no green led)
- insert battery -> red led is constantly on
- lsusb shows device
- start flashing
(no timing requirements, etc)
You can use the same steps to recover from a dead battery by just skipping the last step.