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RHB NAV Radio Unlock Maps Fix

Sat Aug 09, 2025 4:30 pm

Hi, have an RHB Nav Radio with "Cant Unlock Maps" Error. It is RHB14 Software 4.18 . NT 2014 Maps.
I have read many many posts about this, unable to get any discussions read to work.
Spent hours reading and also file links are not valid anymore.
I feel it is beyond me with reading and trying thus far. I am missing something that I must not see/understand.
Does anyone have a proven process that could fix this?
Thanks.

Re: RHB NAV Radio Unlock Maps Fix

Sun Aug 10, 2025 12:53 pm

It is the RHB 430 Chrysler Style radio. I have the FW at 33.01.13. From reading the base map is corrupted. Is there a Nav FW version that works best for
updates or installs? Currently at SW 4.18 RHB14. I have an unlocked 2013 NT file, but it will not load it.
It became an obseesion to fix and now I am lost.

Re: RHB NAV Radio Unlock Maps Fix

Mon Aug 11, 2025 12:38 am

From a lot of reading, need Firmware 4.07 or 4.08 associated with RHB13.
Unable to find this any where.

Re: RHB NAV Radio Unlock Maps Fix

Mon Aug 11, 2025 1:24 am

To confirm, in need of RHB Radio Garmin FW 4.07. Unable to find a reference anywhere for this version.
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