Is it possible to downgrade from 4.2.1

So if you upgraded to iOS 4. Step 1: Download the required old ipsw firmware files. Download links: iOS 4. Note: Your iPhone screen at this time should be blank black in color , if not, then you are most likely in Recovery Mode, not DFU mode.

Step 4: You will now have to restore your iPhone, iPad or iPod touch to the firmware you downloaded in Step 1. Click on your iOS device icon from the sidebar in iTunes. This will make iTunes prompt you to select the location for your downloaded firmware file. Actually trying to upgrade iPhone4 running iOS4.

Btw that device has never been upgrades, since iOS 4. When following the More Information link I get to page with a checkilist. Here's my answers:. First is according to google related to jailbreaking i. No idea what the second error note means or whether it's just a side-effect of the first one. Laptop is using Point Check harddisk encryption, but that shouldn't interfere in this way either.

Trying DFU mode didn't either help, not able to install 4. What could be the problem? What could I try next? Why would Apple want me to do that? No, forget the last question. I'm using the device ONLY for development and got it as well as the laptop from customer. Firstly, search Google for "download ios 4.

If it's in a zip, unzip it, but you should end up with an. Open iTunes and select your device on the left. Cramming for a geography exam? These iPhone apps make it fun to study geography. I dont have a computer so how do i downgrade my ipod 2g 4.

Just type in jailbreakme into the search box and u will be able to jailbreak your iPod touch at ur regular version. I will need these directions to jailbreak my IPod with comex, but I need to downgrade so I can.

My real email if u need answers to questions is mbdeckman aol. I have a iPod 4th Gen, and I could only Jailbreak my 4. Search the following: "RedSn0w" or "Jailbreakme".

Trucy, if you continue to have issues with your operating system, feel free to 'Ask a Question' to get help. Hi I have an ipod touch 1g and I upgraded to 3. Can I downgrade iPod touch firmware 4. Communities Get Support. Sign in Sign in Sign in corporate. Browse Search. Ask a question. User profile for user: lightwavenm lightwavenm. After I restored it to iOS 4. When I noticed no difference, I tried to downgrade back to iOS 4. I would like to downgrade back to iOS 4.

What can be done about this? More Less.