Iphone4 unlocked- no service

[vietkool]

Hi,
my iphone 4 unlocked keep getting no service then searching ... sometime it can reconnect but most the time it stay in no service untill I reboot the phone then I get the service back.
My house located at area where I can get about 2-3 bar signal in the house. but with my old 3gs, no service untill reboot. yeah sometimes it does drop call but it reconnect right away after that.
Is anything I have to do to prevent no service from iphone 4?

[sad_t3arz]

nope not really. this happenes on my phone occasionally. just reboot the phone a few times and it should be ok.. sometimes it takes me up to 20 times of rebooting. but once i get service it doesn't cut out unless the phone dies completely.

[smokeyismyg]

Did this just start happening or was it once you installed Ultrasn0w? Maybe a reinstall would help.

[Dashar]

look for ultrasnow fix online and run it, thats what fixed it for me.