Phone worked well for weeks, now car tells me problems

I have the Sprint version of that phone (T608 I think is the number) and have had some problems with the car, or maybe the phone, not playing nice after a while.

I fixed it by deleting all the partnerships, in both the car and the phone, and having the car look for the phone again. I've had to do that twice, but haven't had a problem for some time now.

The Sony Erricsons seem to have some real trouble talking on Bluetooth when the battery is low. Make sure you have the juice all the way up. I know... it seems trivial, but I forget to recharge my phone all the time.

 

I have the T-610 with the same issue. This happened once before and deleting the partnerships from the car and phone worked, but this time the phone sees the car but the car doesn't see the phone. Anyone have any thoughts?

 

Bill (or other T616 owners) have you gotten the phone flashed to improve Bluetooth? At least one PC poster has done so (was it efusco? [EDIT: Nope, it was vintagebob] ) If you're still having problems after all this time, that may be your fix.