Join Date:Joined: Aug 2010
i have had two primes with working gps first one with c10kas sn, which i returned n exchanged due to stuck pixels after 2 weeks of usage.
second one is with c20kas sn also has working gps, but suffers from the reboot issue after the .14 update (waiting for the .15 update to be released which hopefully address the reboot issue).
but i can tell you that, dont expect to be able to use turn by turn gps navigation even when u get a prime with working gps.
your best bet would be to tether gps from your phone via blue tooth if gps navigation is what you are trying to do with the prime.