iPhone 4 Problems and Questions

iZIGGA · Apr 17, 2013

I have an att iphone 4 on 6.1.3. I want to downgrade it to 6.1.2 so i can jailbreak it. What is the process for this?

willerz2 · Apr 17, 2013

Just follow Daniel's instructions. He demonstrates using 5.1.1, replace it with iOS 6.1.2.

iZIGGA · Apr 17, 2013

what if it is already jailbroken on 6.1.3?

willerz2 · Apr 17, 2013

It wouldn't matter. When restoring to any iOS, you're in DFU or Pwned DFU mode, which wipes the device completely.

iJinrang · Apr 17, 2013

i thought you couldnt downgrade?

willerz2 · Apr 17, 2013

You can't downgrade A5+ devices (with exceptions on the iPad 2). The 4 is a pre-A5 device and is susceptible with the LimeRa1n exploit.

More detailed list here

iZIGGA · Apr 18, 2013

i tried plugging an iphone to itunes and restoring it. it finished restoring but when i turned it on i only seen a white screen and when i took
off the cover, the backlight was on. what causes this?

iZIGGA · Apr 19, 2013

I restored my iphone, still a white screen. Replaced the lcd, nothing. Any suggestions?

iJinrang · Apr 21, 2013

I say take it to apple and tell them you tried to upgrade and your screen went blank. I messed up the first time I jb my iPhone 4 after a couple of days of being " tweak happy" my phone rebooted itself and got stuck on a black screen. I told apple that I was trying to update my phone and it got stuck on the black screen. And they gave me a new one.

iZIGGA · Apr 22, 2013

Did you have a warranty? I don't have one

iZIGGA · Apr 22, 2013

I'm looking for the best battery you can buy for iPhone. Any suggestions?

scifan57 · Apr 22, 2013

lvziggy said:
I'm looking for the best battery you can buy for iPhone. Any suggestions?

The one that came with the iPhone. The best replacement battery you can get for your iPhone is an OEM battery. If you order from places such as iFixit, you're guaranteed to receive original parts.

scifan57; iPhone Forums Moderator