Since last restore thread was from 05/01/2021 Wanted to follow up with correct procedures path. Just to ensure this is still relevant. Clicked on the FAQ’s from last thread and broken.
Upon reflash of sd after a failure, best approach to bringing lightning back to recover channels and funds can be done by:
channel.backup file (obtained through LND 3 dots)
24 word phrase (obtained during 1st signon)
follow umbrel instructions upon startup after failure event
Adding for more clarity on backup procedures for Windows access to linux pi. Download putty to access umbrel@your ip. sign on using putty. the following is from umbrel QA link.
Recovering from a channels.backup (Umbrel OS)
Once you’ve restored from the 24 words, it might take a few minutes to a few hours for it to scan all of your previous Bitcoin (on-chain) transactions and balances. Meanwhile, here’s how you can restore the funds in your Lightning channels.
STEP 1: COPY OVER THE CHANNEL BACKUP FILE FROM YOUR COMPUTER TO YOUR UMBREL.
Thanks for mentioning that troubleshooting guide.
I updated the procedure of restoring Umbrel node with 6 methods, tested. Here you have the additional guide - is also updated the restore section in the Troubleshooting guide.