I have a customer with a flash 4 lost everything, CCR tree mailboxes, everything except the password, hit f983 and the password which was changed from default is still same, That's a first for me, anyone know why? Reprogrammed it n works fine

Normally when you lose everything it is because the Capacitor is bad and you lost power and everything defaults. Then you have to do the install procedure.
It kept your changed password??
You didn't have to do an Install?
That is weird.
Maybe the Cap is only partly bad???