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Thread: No signal after jailbreak
03-13-2010, 08:57 AM #1No signal after jailbreak
I recently bought an Iphone 3g 8gb from ebay. When It came, I jailbroke it with blackra1n. When i put my sim card in, it came up with no bars on the top left. I've tried numerous jailbreaking software, with no success. This is really weird because I had an iPhone 2G 8GB before, and that worked like a charm with BlackRa1n, with the same SIM card and everything. I've ran outta ideas on how to fix this. My version is 3.1.2
If anyone could help, that would be great
03-13-2010, 08:59 AM #2
You need to unlock the phone as well, if you're using it with an unofficial carrier.
To unlock, go into Cydia and go the Manage tab. Add the source http://blackra1n.com When you've done this, search for blacksn0w and install that.
03-13-2010, 09:00 AM #3
Well i'm using it with AT&T. I'll try and add that and see if it works.
03-13-2010, 09:09 AM #4
Now, you can unlock using blacksn0w, but what would be best is actually to restore to a fresh 3.1.2 and let iTunes activate it this time. Then you can jailbreak afterwards. The reason for this is that blacksn0w causes problems for some users and as you don't need to unlock, you should avoid using it.
If you want to restore to 3.1.2, you simply need to download the 3.1.2 files for the 3G and in iTunes, hold down the 'shift' key and then press 'restore'. Then point iTunes to the downloaded 3.1.2 firmware.
Download link for official firmwares here: iPod and iPhone Firmware Download
03-13-2010, 09:14 AM #5
I've tried many times to restore to 3.1.2. Apple won't sign for 3.1.2 anymore, so I could no longer reset.
and also won't activating the iPhone through iTunes sign me up for a Data Plan for $30? That would just defeat the point of hactivation
Last edited by JeremyJ11; 03-13-2010 at 09:14 AM. Reason: Automerged Doublepost
03-13-2010, 09:29 AM #6
As I don't live in the states, I don't really know what kind of deals you get with ATT so I can't comment on that. But since it might be bad for you to let it activate in iTunes, just add the blackra1n repo like I said in my previous post. That'll get your phone working.
03-13-2010, 09:33 AM #7
yea, I did what you said. Still not working.... I did have a $10 internet contact for my Samsung Mythic, which was fine to use for my 2G.
03-13-2010, 05:18 PM #8
03-13-2010, 05:37 PM #9
yeah. No service still
03-13-2010, 05:58 PM #10
Is this a 3g or 3gs, I know you said 3g but I'm wondering why it would say you can't restore to
3.1.2 if it was a 3g.
And no, the point of jailbreaking is not to avoid the data charge, chances are they are gonna automatically tag you with the $30 charge
03-13-2010, 06:03 PM #11
I used my 2G and didn't get charged extra. If I have to, i'll return my 3G and go back to 2G