You don't need to set the custom beta stuff as the 2016 SE doesn't have iOS 16. Just carry on with --latest-baseband and --latest-sep and it'll work just fine.
If you're getting the FDR message, try another blob or go to 14.3.
#Downgrade iPhone SE (2016) from 15.7.x to 14.2 (/w blobs)
sturdy narwhal
sturdy narwhal
you only need to do the pwned dfu once
hollow spoke
placid burrow
can you send the blob files here?
idk why but Linux never works for me but windows 10 should, windows 7 isn’t really good for modern iOS things
Macos is the best definitely
minor holly
the restore wouldn't be done at all if the blobs were invalid
placid burrow
you have Windows 7, right?
10 might work better if you have tried it I’m assuming you have though
there is a fix for that
oh okay
did you also tick delete the driver file?
minor holly
did you try restoring with --no-rsep
minor holly
yes, the gui is just a wrapper for the tool
placid burrow
idk why Linux doesn’t work 
has never worked for me
minor holly
can also be shortened to -t /path/to/blob -2 -0 -j /path/to/ipsw
minor holly
uhh, it should be flashing baseband
use the less shortened one and see what it says
placid burrow
IIRC sep should be fine