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Firmware downgrade 3g - Sierra Overdrive Pro 3g/4g Mobile Hotspot For Virgin Mobile

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I would like to downgrade firmware on iPhone 3G from 4.0 to 3.1.1 Please help


There is no 3.1.1 firmware version available for the iPhone 3G. 3.1.1 is only for ipod touches. To downgrade to 3.1.2 (http://modmyi.com/forums/downloads/firmware/6/iphone-3g-3-1-2-32353/) or 3.1 (http://modmyi.com/forums/downloads/firmware/6/iphone-3g-3-1-32183/), download from either of the provided links, go into iTunes and to your iPhone tab, shift+click on restore for windows, or alt+click restore on mac, navigate to the downloaded file, and open it. Your phone will restore to the downloaded firmware.

Dec 21, 2010 | Apple iPhone 3G

1 Answer

I have 3g iphone, 4.1 firmware installed. How do I jailbrake the iphone. Thanks


you will have to downgrade the firmware as anything higher then 4.0.1 wont jailbreak at this time

goto the website http://www.felixbruns.de/iPod/firmware/
and download the selected firmware for the ipod touch model you have. if your unsure if the model / type you can goto http://www.felixbruns.de/iPod/firmware/#
and type in the last 3 numbers of your serial number to find out

if you want to downgrade or upgrade, choose the firmware you want to downgrade to, then go to itunes and shift-click on restore and choose the firmware you want to change to. this will restore your ipod touch

Sep 12, 2010 | Apple iPhone Smartphone

1 Answer

I have a 3g iphone and I have the latest 4.1 firmware installed. How do I jailbrake the iphone. Thanks a lot.


goto the website http://www.felixbruns.de/iPod/firmware/
and download the selected firmware for the ipod touch model you have. if your unsure if the model / type you can goto http://www.felixbruns.de/iPod/firmware/#
and type in the last 3 numbers of your serial number to find out

if you want to downgrade or upgrade, choose the firmware you want to downgrade to, then go to itunes and shift-click on restore and choose the firmware you want to change to. this will restore your ipod touch


you have to be on 4.0.1 or lower to jailbreak if you already have that then goto www.jailbreakme.com on the ipod/phone touch browser

Sep 12, 2010 | Apple iPhone Smartphone

1 Answer

How can i downgrade my ipod touch firmware from 4.0 to 3.1.2 when i have the MC model?


Check out this site
http://www.felixbruns.de/iPod/firmware/
chose which firmware you want and download.
After downloading the desired firmware, you can shift-click (PC), or option-click (MAC), the Restore or Update buttons in iTunes. A file dialog will open and let you choose the downloaded ipsw-file.
Note: Your browser may change the ipsw-file into a zip file. In that case just rename it to end in .ipsw and iTunes will accept it.

Jul 09, 2010 | Apple Ipod Touch 8 GB 32 GB 64 GB 3rd...

1 Answer

I made a mistake and upgraded mym iphoone and i


You can download a downgrade in firmware for the iphone from felix bruns website. Then when you open up itunes you can choose which firmware file to use for a restore by holding down the shift key when you hit the restore tab. Then choose the lower firmware version you downloaded. Once you have downgraded your firmware, blackra1n is the software you need to unlock and jailbreak it. It is extremely user friendly, and google is your friend to find it free. Remember to back up all of the data on your iphone before tryng any of these proceedures. Good luck!

Jun 13, 2010 | Apple iPhone 3G

1 Answer

Unlock iphone 3G 3.1.3 with baseband 5.12.1 tried fuzzyband to downgrade bootloader but cannot.


As on date 3.1.3 firmware with baseband 05.12.01 can only be jail broken (using spiritjb.com). It cannot be unlocked to be used with other GSM carriers.

Mar 09, 2010 | Apple iPhone 3G

1 Answer

Cant trash emails


For sure you updated your firmware to 2.2, ti fix this issue is by downgrading your firmware.

Jan 06, 2010 | Apple iPhone 3G

1 Answer

My iphone 3G is downgraded from version 2.2.1 to 2.2


Book an appointment at an apple store and they will replace your phone...

Jul 24, 2009 | Apple iPhone 3G Black Smartphone

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