Default Lost Network setting G3 Samsung

Dreaded VM phone lost meid.
Service will not allow reactivation
I have serial and hex is there an app
To help edit or reenter the settings.
I noticed. In europe they have web pages about this. But for their countries system towers .
I realize swapping phones is not allowed but reinstalling your actual
# meid should fairly simple most likely a program converts your serial
Access code to generate all settings
On that unique phone hex generator.
Any thoughts are appreciated I noticed in CYn11 your settings were
Visible.
Thanks Doug