[iPhone 5] Downgrading iOS 6.0.2 to 6.0.1

jyfs wrote:

I went with the update knowing that you can still downgrade (according to my friend).

Your friend was incorrect. You can not downgrade. Doing so is an unauthorzed modification.

Your phone is now unsupportable here.

KiltedTim wrote:

Your phone is now unsupportable here.

Could you be more specific please? What could happen to someone's GSM iPhone if he restored to an iOS IPSW made for CDMA, say 6.0.2 ?

Why would we lose support for installing last weeks firmware if we don't like this weeks firmware?

So if we download the firmware and it makes our phones useless, we're just stuck with our batteries dying?

It's an unauthorized modification of the phone. A 'hack'. Discussing hacked/jailbroken devices here is forbidden by the terms of service.

So what do we do then?

Whatever you want. But you can't get help here or discuss it here. Try google.

If you haven't already attempted to do something like this, why don't you try troubleshooting whatever problem you're having before you render your phone unsupportable.

Maybe he's tried all the troubleshooting steps recommended here and by Apple and it hasn't helped. Maybe Apple has killed his battery life (thereby greatly reducing the usability of the phone) via their shoddy QA.

Maybe he's tired of Apple not giving a crap. There's no support to be found here anyway.

I am having serious issues since upgrading to ios 6.0.2. My phone cannot detect a wifi signal unless I stand within 2 feet of the router!!! This was never the case before the upgrade

I thought the upgrade was supposed to fix issues not kill the **** wifi on the phone...

Any ideas as I have tried everything from restoring the phone to reseting the network settings. All other devices at home can detect and connect to our wifi

Yippee, I'm not alone. Something happened to me recently that has made wifi sync the world's worst experience. But, guess what, I can prove you wrong. Because my one iphone using 6.0.1 and my ipad using 6.0.1 always error out as being off line even if they're on the same desk as the airport, but the other iphone with 6.0.2 actually will sync even as far at 50 feet.

I can surf the web fine on the iphone and ipad that don't sync. But, find my phone/ipad thinks they're off line.

Isn't this frustrating?

Regarding downgrading, I was surprised that apple has these files if we can't use them. So, I guess I won't. Anyway, I just got the 2nd iphone and have purposely held off upgrading until I get some time to see if it's battery lasts longer than the 1st iphone, which I upgraded almost immediately after I got it.

I checked and found some of the settings needed to be changed on the ipad and iphone 6.0.1 which I didn't realize. I had shut them off to save battery life. Anyway, icloud working, location for time zone, date and time auto, find my phone and the 5Ghz wi-fi, since I may have some bluetooth devices interfering. Now, they are showing up in itunes and are syncable.

jyfs wrote:

I have the iPhone 5 A1429 model GSM.

Surprisingly, the version I downloaded "iPhone5,2_6.0.1_10A525_Restore" (CDMA version) somehow worked and I didn't get the error message..

Now my phone is back onto iOS 6.0.1 I am a bit happier but what confuses me is that somehow the CDMA version worked on my GSM iPhone 5..Is that possible? Or has iTunes messed something up?

iPhone 5 A1429 has two models: GSM and CDMA. This model usually call as Global Model.

This variant is sold for CDMA networks in the United States and everywhere outside of the United States.

A1429 CDMA models are for some LTE operators: USA and Japan.

A1429 GSM models are for LTE operators: Europe, Australia and Asia.

Basically Apple sell 3 variants iPhone 5 for international LTE coverage: GSM only (USA), CDMA (USA and Japan), and GSM/CDMA (Global models, outside USA)

That's why you experienced that problem and solved with "iPhone5,2_6.0.1_10A525_Restore"

Hope this info can help.

Happy new year everyone!

Same for me. Apple, please, fix it!

Better unsupportable or totally useless in WIFI just because Apple is not able to fix the problem? They already have got my money (plenty), they won't have my freedom.