Not that easy on a 32mb device, but after a full backup using Windows Explorer you can try this .
Unpack to an empty device/SD, add a copy of your ttgo.bif from the backup, add a map.
Use FastActivate to activate the map.
For the voices:
Unpack to the root of the device/SD.
Password for all: downunder
Together these 3 packs should give you computervoices and still enough free Ram for godd navigation.
But don't activate the POI's to show on the map, that will cost too much RAM.
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