I have jailbroken and unlocked iphone 3G ' s before. Have tried several methods but cannot get a cel signal on this 3GS. Tried it with Pwnage Tool on 4.1 and Ultrasn0w the again with Pwnage Tool on 4.3.1 and same issue....no T Mobile signal. It seems there was a problem before with ultrasn0w 1.2 but the 1.2.1 was supposed to fix this. And looks like it has for most , but not me. I either get the single bar with no carrier or "searching" and nothing. Tried several working sim cards as well. Any clue why this is happening?????
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3gs 4.3.1 - 6.15.00 Still NO Signal after ultrasn0w 1.2.1
- Thread starter iremain69
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Is 3G turned off? Failing that try reset network settings. Otherwise reboot/reseat SIM until it works. You could also reinstall ultrasn0w. I've had to do all of these things over the years.
I got the same issue, which I have posted about last week. At first my iphone is unlocked, but then within 24 hour period it says No Service on T-Mobile. I have tried uninstalling ultrasnow at least 15 different times and still the same results. Downgrading or upgrading ipsw versions did not solve this problem. I am also running ipad's downgraded 06.15 firmware, which I think is what is caussing this whole issue.