I don't know how I missed this, but there
is a Firehose loader for QCS2290 (Poke5, Leaf2).
https://github.com/bkerler/Loaders/b..._ddr_fhprg.elf
With a full, raw backup you've got a "get out of jail free" card.
In worst case you might have to open the case to short test points first.
OTOH, the Poke5 does work with "EDL cables", so that would be rare.
Code:
C:\>edl /r poke5.img
Found EDL 9008, configuring... nope, configuring... nope, configuring... ok
Requesting info on LUN 0... ok
Requesting read poke5.img... ok, reading 100% ok
C:\>dir poke5.img
04/24/2024 07:29 31,331,450,880 poke5.img