I don't know the details as to what was done to get your device working as a 465 v3.60, but beware...
You may want to downgrade to v3.40.
See my post below: [Only registered and activated users can see links. ]
After transfer nuvi265W to nuvi465T with PouchX firmware, I used WebUpdater and update oficial FW for nuvi465, because is already fully as original nuvi465.
for sure I have the original firmware (for 465) GCD file converted to RGN (using RGN_tool) and flash it with Updater.exe (preboot mode).
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