[mayhem12345]

I have an iPhone 3G and I used blackra1n to jailbreak and install sn0w. As soon as it installs, the phone starts searching for a carrier and in a couple of mins it says no service. When I manually check the carrier from settings, it says searching and sometimes I see my carrier list and sometimes it says unable to load carrier list. but even when I select the correct carrier from the list, it continues to say searching and then no service.

I reset the phone network settings, reset the phone settings, restored the phone to fresh 3.1.2 twice and still no luck.

The sim works great on my other iPhone 2g.

need help!

[bebeboricua]

turn off the 3G

[jltdhome]

What carrier do you have?

If TMOBILE then turning off the 3G should work.

[mayhem12345]

Originally Posted by jltdhome

What carrier do you have?

If TMOBILE then turning off the 3G should work.

I'm actually in the UAE and using Etisalat carrier, it supports 3G. It has not been a problem with other iphones here. it's just this one.

Besides I tried it with the 3G off.

Could it be a hardware issue?
The wifi works great.

[jltdhome]

Your phone probably doesn't have the carrierbundle for your service provider. Go to help.BenM.at – Mobileconfigs and Tethering for your iPhone | BenM.at and generate a mobileconfig with your carriers settings.

UPDATE: Disregard that, I found the carrierbundle in /System/Library/Carrier Bundles/ so there is one in there. This is an odd one. I doubt its a hardware issue if it worked before.

[mayhem12345]

Originally Posted by jltdhome

What carrier do you have?

If TMOBILE then turning off the 3G should work.

Originally Posted by jltdhome

Your phone probably doesn't have the carrierbundle for your service provider. Go to help.BenM.at – Mobileconfigs and Tethering for your iPhone | BenM.at and generate a mobileconfig with your carriers settings.

UPDATE: Disregard that, I found the carrierbundle in /System/Library/Carrier Bundles/ so there is one in there. This is an odd one. I doubt its a hardware issue if it worked before.

thanks! I'll still give it a go and see if it works. I'll post my findings here. it used to work fine on ultrasn0w before i upgraded it to 3.1.2.

Update: Nope, didn't work, nothing to do with the carrier bundle. Any other solution?

[whosawmike]

I am having the same issue with my 3g. after running blackra1n and installing cydia and snow it goes from "Searching" to "No Service." I believe it is recognizing my SIM as my phone number shows up in the settings. I have Tmobile and the 3g IS off. I originally tried it with OS 3.1.2 and had no luck. I tried downgrading to 3.1 but still no luck.

[pome]

try removing the sim and place in another phone allow it to register. load up blah blah...then remove sim and place back in to iphone...works 4 me....CHA'MOAN

[mayhem12345]

Originally Posted by pome

try removing the sim and place in another phone allow it to register. load up blah blah...then remove sim and place back in to iphone...works 4 me....CHA'MOAN

Tried it but same story. It works great on my other iPhone 2G and Nokia.

Looks like whosawmike and I am on the same boat!

[charatc]

I am in the same boat! i have iphone 3G with 16G.
tried everything you mentioned above and still "no service"

I tried searching over the net for solutions and found that a few people are in the same siutation. Waiting for help over here!

[Madman604x]

do you possibly have ultrasn0w installed as well? conflict with blacksn0w maybe?

[charatc]

no, i did a clean install from scratch.
didn't work and still "no service"

[mayhem12345]

Originally Posted by Madman604x

do you possibly have ultrasn0w installed as well? conflict with blacksn0w maybe?

clean install 3.1.2 -> blackra1n -> blacksn0w

[pontiac428]

same problem here. US AT&T 3G iPhone, clean install 3.1.2 -> blackra1n -> blacksn0w, trying 02 Deutschland SIM w/3G and getting "no service". many hours reading, frustrated.

[dhamien]

Any of you tried official restore through iTunes, then shift-restore to a PwnageTool made custom firmware and then installing blacksn0w through Cydia?