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How to fix some mysterious problems.

I first got this iPhone 3G in a state that appeared to be jailbroken and with iPad baseband (06.15.00) installed. I was able to downgrade the baseband to 05.13.04 and used redsn0w to flash it with an untethered jailbreak version of iOS 3.1.3. I don't remember how I did that and didn't keep records because I didn't expect to do anything more with it.

Fastforward one month and I needed to wipe this phone. For this I used the iOS built in "Erase contents and settings". This turned out to be not good. It got stuck in an reboot loop displaying the Apple logo and the circular wait indicator, with each period lasting about 10 minutes before next reboot. From here I attempted to reflash stock 3.1.3 through iTunes with alt-click on the Restore button, which ended in iTunes error 1015 and the phone showing "connect to iTunes" only. After that I used RecBoot to kick it out of recovery mode which rebooted the phone into a similar "connect to iTunes" screen, but this time with an emergency call slider. From here I can't get any further.

Could someone please help me to get this phone in a functioning untethered state? It doesn't have to be jailbroken, in fact it would be preferable to have a stock flash installed. iOS version doesn't matter much but I suppose the newer the better. I don't have access to any SHSH- or other device-specific files.

Perhaps I should flash it the same way I did last time I got it working, but I don't remember how. I remember that at some point I had to use a slightly different version of iOS (or redsn0w?) than expected. I also used a page that linked redsn0w versions to iOS versions, but can't find that page again.

edit: I used redsn0w 0.9.4 with iOS 3.1.2 fw to jailbreak iOS 3.1.3. The problem now is that there's no signal from the cellular network.

edit 2: The serial number's first five digits is 86849.

edit 3: Using redsn0w 0.9.15b3 I selected iOS fw 4.2.1 and the options "install Cydia and downgrade iPad baseband". After reboot the phone went into a perpetual reboot loop like described in the second paragraph above.

iTunes lets me reinstall fw 3.1.3 but not 4.2.1. Using redsn0w 0.9.4 and 3.1.2 I'm back to where I was.

asked 07 Nov '12, 12:14

seron's gravatar image


edited 08 Nov '12, 11:01

Considering that you were talking about iOS 3, I suspect you may have an old bootrom 3gs and won't ever be tethered on any iOS. What are the first 5 digits of your serial number?


answered 07 Nov '12, 19:23

spockers's gravatar image

spockers ♦♦

I've updated my question with the with the serial digits.

(08 Nov '12, 03:40) seron seron's gravatar image

By your serial that is a 3G not a 3GS (your serial says it was made in 2008 week 49, before the 3GS even)

(08 Nov '12, 05:36) theiphoneguy ♦ theiphoneguy's gravatar image

Thanks for the correction.

(08 Nov '12, 06:04) seron seron's gravatar image

ONE.dfu mode the phone. TWO.restore it in itunes to stock ipsw 6.0.1. THREE. use RS 9.15b3 do downgrade baseband to a real iphone BB. FOUR. restore the phone again in itune with stock 6.0.1. FIVE. buy the unlock code. SIX. use RS 9.15b3 for tether JB


answered 07 Nov '12, 13:28

shimmer's gravatar image



When a device has the iPad baseband, restoring to stock iOS can cause problems - it seems to corrupt/destabilize the baseband. It's best to upgrade with custom firmware and preserve the baseband. Since @seron already tried a stock restore, it may be necessary to reinstall the iPad baseband to fix it.

(07 Nov '12, 18:10) britta britta's gravatar image

I would suggest that you use redsn0w to update to 6.0.1. Use the baseband preservation option when it asks. This will keep the current baseband which can be unlocked using ultrasn0w + ultrasn0w fixer.


answered 07 Nov '12, 14:08

iAdam1n's gravatar image

iAdam1n ♦

Ipad baseband is not compatible with ios 6x plus with 6.15 bb you will not have GPS

(07 Nov '12, 14:20) shimmer shimmer's gravatar image

Actually it is. Using the fixer.

(07 Nov '12, 14:20) iAdam1n ♦ iAdam1n's gravatar image

Is 05.13.04 also iPad baseband? I thought it was iPhone.

(07 Nov '12, 15:32) seron seron's gravatar image

@adaminsull Will that procedure make the iPhone jailbroken and will it in that case be untethered? Tethered is not an opition.

(07 Nov '12, 15:57) seron seron's gravatar image

What is the first 5 of the serial number. Also 05.13.04 is not the iPad baseband but you can install it and downgrade to get that baseband you have.

(07 Nov '12, 16:02) iAdam1n ♦ iAdam1n's gravatar image

@adaminsull This device has already been upgraded to the iPad baseband without related issues, so we don't need to check the serial number to see if it's compatible with the iPad baseband.

@seron iOS 6.0.1 only has a tethered jailbreak available. Can you clarify whether you need this device to be unlocked? And if so, do you need it unofficially unlocked with ultrasn0w, or would buying a third-party IMEI unlock be an option for you?

(07 Nov '12, 18:12) britta britta's gravatar image

Actually he could have preserved that baseband from before. And untethered for old boot 3GS which is why I wanted to know too.

(07 Nov '12, 18:14) iAdam1n ♦ iAdam1n's gravatar image

@britta Buying the unlock is not an option at this point.

(07 Nov '12, 18:25) seron seron's gravatar image

@britta I'm not sure what "unlocked" means. Is it that it's not locked to a certain carrier? In that sense it was already unlocked before.

(07 Nov '12, 18:28) seron seron's gravatar image

@seron Yes, I mean "unlocked" in the sense of "carrier unlocked". When it was unlocked before, was that because it had the iPad baseband and ultrasn0w installed (unofficial software unlock), or because it had been factory-unlocked/officially-unlocked?

If you need an unofficial ultrasn0w unlock, you have to jailbreak your phone. It looks like it's currently jailbroken on 3.1.3, which is fine. Run the latest version of redsn0w, click "jailbreak", and choose the option to install the iPad baseband. (Optional: run redsn0w again and downgrade the iPad baseband.) Then install ultrasn0w from Cydia. This should give you a jailbroken phone with a working unlockable baseband and an unofficial carrier unlock.

(07 Nov '12, 19:05) britta britta's gravatar image

@britta I don't know, but have had some indication that the reason it was jailbroken before I got it might have been to carrier-unlock it. From what I've read from your and other's comments I have to jailbreak it as you described to have it remain unlocked. I'll try this.

(08 Nov '12, 05:09) seron seron's gravatar image

also its a 3G not a GS

(08 Nov '12, 05:37) theiphoneguy ♦ theiphoneguy's gravatar image

@britta I can't find the option for downgrading the baseband in redsn0w 0.9.15.b3. After selecting Jailbreak, at the end of the DFU initiation sequence redsn0w reports "USB communication problem".

(08 Nov '12, 07:09) seron seron's gravatar image

@britta It seems I only get the option to select iPad baseband if I use a 4.2.1 ipsw. 3.1.x are not accepted by redsn0w.

(08 Nov '12, 07:42) seron seron's gravatar image

If its still on the slide for emergency all you need is itunes, an att sim (dead or alive, doesnt matter), redsn0w, and wifi to connect to.

  1. put the att sim in it
  2. connect it to itunes so it will activate
  3. once its activated, use redsn0w to downgrade the baseband
  4. once its the baseband is downgraded, jailbreak it
  5. once its jailbroken, connect to wifi and install ultrasn0w in cydia
  6. once you have ultrasn0w installed, turn off 3G in settings>general>network

answered 08 Nov '12, 06:12

theiphoneguy's gravatar image

theiphoneguy ♦

edited 08 Nov '12, 06:13

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Asked: 07 Nov '12, 12:14

Seen: 8,255 times

Last updated: 08 Nov '12, 11:01

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