Need help sorting out iPhone mess.

miracleboy · 3 Oct 2013 at 18:44

I have an iPhone 3GS which was unlocked on Vodafone (O2 unlocked it). I was having serious problems with it constantly searching for a mobile signal, then going no service and then going to 4 bars. Anyway, lots of places online said to cure the problem you can jailbreak it using redsnow and using Cydia cure the problem. As part of the jailbreak process I updated the baseband to 6.15 and the OS to 6.x (can't remember the number but it was the latest).

It was unstable on this jailbreak, so what I wanted to do was to go back to 5.1.1 which is recommended for the 3GS and remove the jailbreak. I used an online guide to try and revert using redsnow to 5.1.1 but now the phone just says "No SIM installed" all the time and I can't get it working properly.

All I want is to make my phone a non jailbroken 5.1.1 version - is this possible at this stage and can anyone guide me through the process? I have looked online but not been able to find a decent guide to doing it.

Thanks

slinxy · 3 Oct 2013 at 19:08

surely by plugging the phone to itunes and looking for updates, it should find the latest stock firmware and install it on your phone?

http://www.imore.com/how-to-problems-with-your-iphone-restore

miracleboy · 3 Oct 2013 at 19:28

I will try that to see what happens. I just checked and the Version is 6.1.3 (10B329) and the Modem Firmware is 05.13.04.

Deleted member 77746 · 3 Oct 2013 at 19:34

I am fairly sure if you change the baseband you are stuck.... IIRC there was no way to update it via iTunes and you have to use custom firmware.

They did warn people....

miracleboy · 3 Oct 2013 at 20:08

I don't mind using a jailbreak if it is stable, but 6.1.3 isn't for me, I hoped 5.1.1 might be.

slinxy · 3 Oct 2013 at 20:30

you may have to place the phone to restore mode then manually download a stock ipsw file to force it on your phone. If you google it, there's guides on how to do it.

The only times I had to restore jailbroken phones to stock, itunes did it all for me.

miracleboy · 3 Oct 2013 at 21:05

I have the download of 5.1.1 and tried using option left click in iTunes to choose it to restore from, but I just get a message saying the device is not eligible for the requested build. I don't have any Apple entries in my hosts file and I also don't have any saved blobs.

Skyboat · 3 Oct 2013 at 21:10

You can't downgrade without SHSH blobs.

miracleboy · 3 Oct 2013 at 21:38

Yeah I read that, and I don't have them.

So that being the case, how do I resolve the "No SIM card installed" error now?

Deleted member 77746 · 4 Oct 2013 at 17:49

Buy a new one?

FreeStream · 4 Oct 2013 at 22:45

miracleboy said:
Yeah I read that, and I don't have them.

So that being the case, how do I resolve the "No SIM card installed" error now?

Well your buggered really.

Unless a DFU restore to iOS 6 fixes it it is new phone time.

Take it to an apple store and they replace them for something like £150, but might as well get a used 4 for that!

HAz · 4 Oct 2013 at 23:36

I hope you didn't install that stupid ipad baseband?