Apparently the "missing voice" error is back.
Updated the maps via GE on a Nuvi 750 with a lifetime maps subscription. Map is on a SD card due to size issues with the 750 and had been working fine with the configuration previously. After the update to map CN North America NT 2015.30, the device shows no voices available.
The following is from the "About" system area of the device:
Software version 5.40
Audio version: missing
GPS SW version: 3.00s
I've tired reinstalling the voice files from the mygarmin site. The standard TTS voices are shown as though they will be new to my device (which makes sense if they are "missing"). After the files are supposedly installed, I can see them on the device in Windows explorer, however I still get "none found" under the Voice filed in the Language section of Settings, and audio version "missing" on the device in the about area.
I have tried the reinstall several times. Completely removed GE from the system (including all backup files), manually purged all Garmin files from the various hidden areas of my PC and started from scratch more than once. Tried deleting the XML file. I even went so far as to copy the voice files from the device to a folder on the SD card in case it was looking for the voices folder on the same "drive" as the map files. Same result, no voices.....
With the unit in test mode, I see the following
Voice Count - 0
Voice Checksum - 00000000
PCB P/N 105-01278-00
PCB Version - 7
Flash 1 - 575-A0104-XX
Flash 2 - NA
On the audio test page I see "audio missing".
I guess the one good note is the map did update to 2015.30
Any suggestions or fix for this? Is there a way to reinstall the firmware (perhaps to the prior version)? I know the various versions used to be on the Garmin site but I don't see them now.