Yeah I did give it some thought as to weather to try a different firmware. I’ve read through the huge thread HERE and decided to give it a go as it has been playing up with phantom key presses and non responsive buttons - it was (is) making it unusable.
I had hoped that maybe a hard reset would help cure the issue, but there does not seem to be a factory reset other than to re-flash the firmware. And this is the problem - my handset variant uses a firmware version (L05.01.004) that no one as yet has shared. Hence trying a different one.
If I cant get it working again I’ll not be heartbroken, as it’s a dog of a handset. Not recommend unless you can get it at a rock bottom price. But it would be nice to revive it to put it back in the radio rotation collection.