How To Downgrade iPhone 3G From iOS 4 To iPhone OS 3.1.3
Comments
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Thank you Andy!!!
On a Windows7 64bit machine -
1. Step 4b is shift+ restore, not Alt+restore
2. Did not have to perform step 5a, 5b or 5c. Went straight to 5dWorked first time, no problems. Wonderful!
Thank you, all you people over the internet who so generously share your knowledge. Life was so frustrating BI (Before the Internet).
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funciona perfectamente gracias, tenia mucho tiempo haciendolo y nunca salia, pero gracias a este tutorial salio, saludos!
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This is great, I had a 3G updated to 4.1, never jailbroken, did this to downgrade to 3.1.2, Jailbroke with blackra1n, unfortunately fuzzyband found that the phone has 5.09 bootloader, so, was not possible to downgrade baseband, but at least have a jailbroken 3.1.2 3G phone...
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A warning: I changed to a new iMac from the iBook I've had for the last 5 years last month. Doing the downgrade from a new computer causes some complications.
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Didn't work for me, pressing alt + restore didn't work and I only had the option to upgrade and restore.
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hi, im using win7 x64, i cant recover my iphone 3G.. recboot and libusb dont work, can someone help me? i read all post here but nothing works :S
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CYDIA DOES NOT HAVE YOUR SHSH FOR iPhone3GS 3.1.3 (7E18) THERE IS NO WAY FOR YOU TO GET THEM. SORRY. YOU ARE JUST TOO LATE.
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i had the same problem, had to hold down Shift not Alt, thank you
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when i navigate to desktop and find the 3.1.3 file, now it say iphone can't be restore because the firmware file is not compatible. anybody help?
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does this work with 4.1 too?
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At last all weekend sorting this one out, I had installed the jail break on my phone but never used it I don’t know if that’s why the update did not work. but it was slow and my phone turned its self off but was still on using the battery, and when you turned it off ,it turn its self back on, thanks to info on this page I have rebuilt my iphone 3g to 3.1.3 now works fine. Please note when down loading the os change the zip file into an .IPSW ! Show hidden file extensions and hidden folders and when down loading the rec boot program make sure you follow the link for the windows version if that’s what you have. Thanks my advice if its not broke doesn’t fix it!
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hey i have an iphone 3G and i reset all settings and erase all data now my phone is just showing apple logo and nothing more so please guys help me with this problem.
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i have a problem when i restore the phone . it has a pop up message saying that it will upgrades to the latest version and i dun have any navigate ways
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I'm on vista...
I right click on it and go properties
but there is no compatibility tab -
It works.. mine downgraded. many thankx..
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I can't believe it worked. But it did. Who cares that I lost all my lame old texts.
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Hi
Thanks, I just downgraded from 4.0.2 to 3.1.3 on my iphone 3G.
Lost all my data but have backups. :)
I jumped a few steps.
I downloaded ipsw file from iclarified.com. and just ALT/OPTION click on "restore" selected the ipsw file and it was done.
Had to find another version on RecBoot, link above not working. "RecBoot-1.0.2.zip" worked fine.
thanks again
Victor R -
Dear Friend
Does this happens only in Wi-Fi Connections. -
I dont have 3.1.3 back up
?
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i have an iphone 3gs 0s 3.0.1 and i need to upgrade to 4.0.1 but it doesn't work,i think i have to put one code on my system to do it?? please help me!
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Thanks lot buddy it works for me. i downgrade my iphone 3G from 4.2.1 to 3.1.3. cuz it was freezing and slow on 4.2.1. so easy step by step as per your details. Great work. keep it up.
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The only thing is that i backup my iphone while it was on 4.2.1. when downgrade it to 3.2.3 to restore my backup. it's saying that it saved in newer version of OS4 so i couldn't restore my backup. Goood thing was that i had my old backup from 3.1.3 and restored it.
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hello everybody. i have a big problem. i have an Iphone 3G which i updated to 4.2 and it runs slow. so i want to know if i can downgrade to 3.1.3. i do not have shsh saved. is this possible?
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I have a Mac, followed the instructions, and everything worked just great. Now my phone is going fast enough to get me by until I am available for an upgrade! Thank you so much!
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I just figured I tell people this but it's not the option/alt key u hold down it's the shift key
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Right, followed step by step, downloaded os 3.1.3, put phone in dfu mode, itunes said "detected in recovery mode" blah blah but when i click restore (holding apple key and also held ALT on Windows) itunes goes straight online and detects the newest vwersion, OS 4.1... This has just consumed the last three hours of my life, any ideas..? Many thanks
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as always, a perfect solution to my problem. thank you again.
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this does not work!!!!
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It didn't work for me. When I restored my phone it forced me to update my phone
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it meaning iTunes
