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How to DOWNGRADE iPhone 2G to iPhone OS 1.0!

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Hello. I promised I would make this video last time, so here is a full tutorial! NOTE: Before commenting that this doesn't work, check to make sure your iPhone is able to run iPhone OS 1.0. Check the back of your iPhone for the serial number. In order for this to work, the third number of the serial must be "7" and the next two numbers have to be "48" or lower. Below are some examples (all other numbers are replaced with X's): WORKING SERIAL: XX747XXXXXX NON-WORKING SERIAL: XX832XXXXX (another way to know whether this will work is checking if you have bootloader 3.9 or 4.6. Only 3.9 would work) » Links ‣ Downgrade Kit: https://goo.gl/FtLTAw ‣  My Graphics Shop: https://sellfy.com/techtoolbox ‣  Video Gear: https://goo.gl/4QjBDz Disclaimer: Any/all songs used in this video are/may be protected by copyright. I by no means take credit for them; please read the "Music Used" section of the description for more information. » Music Used ‣  No Worries by LOWERCASE ‣  MMHHMM by LiamLRY ‣ Into the Ether by Defqwop ‣  Dreams by Somar For inquiries, contact: [email protected]
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Text Comments (189)
nick1309 (1 year ago)
Hi :) I did all your steps and now my iphone runs os 1.0 but i have the 'no wifi' problem. Do you have any suggestion?
Jakeria 64 (6 months ago)
So my 2g is already on 3.1.3 so do I go straight to the windows computer??
nick1309 (1 year ago)
Gta gaming Try to restore OS 1.0 and then use just 'unlock button' again, it should work
Gta gaming (1 year ago)
Nicola Zanilo no I can use it but it's not unlocked
Gta gaming (1 year ago)
techtoolbox im having trouble with iTunes recognising my iPhone 2g... I have done all the steps I need to do the anysim thing but it's not working !
Gta gaming (1 year ago)
nick1309 what's zipphone
Ferco minecraft (2 months ago)
Hi, I did all your steps and now itunes cannot connect to it,no sound and no wifi. This all happened after i open anySIM. And anySim give me a complete failure. after that fallure my iphone have all that proplem. I tried to restore it though itunes but itunes said: 'itunes cannot connect to iphone because an invalid response was received from the device.' now i cannot do anything cuz itunes can't connect to it And IMEI,ICCID and Modem Firmware on my iphone's setting are empty,nothing shows on them. My IMEI should be 01 136400 471392 8 Do you have any suggestion? at least make my iphone can connect to itunes again please
Ferco minecraft (2 months ago)
Wow it works!You get a new sub bro!
techtoolbox (2 months ago)
Put your iPhone into DFU mode and connect it to the latest version of iTunes. Restore to iOS 3.1.3 and start the process all over again.
Ferco minecraft (2 months ago)
Oh and i can only hear sounnd with headphones
creent_tv (2 months ago)
Will this also work in a virtual machine with Windows XP? My Windows XP laptop broke some weeks ago ._.
techtoolbox (2 months ago)
Usually virtual machines are a bit problematic since the iPhone has issues reconnecting during the restore process. I saw some people that got it to work so you can give it a try.
Sam The guy (2 months ago)
will this work if my iPhone 2g is jb on 3.1.3?(jailbreak)
Cheeseburger FX (2 months ago)
iTunes would not recognize after iLiberty. Fixed by activating with ZiPhone 3.0
ueuezaza (2 months ago)
Did not understand the thing about the bootloader. My iPhone has 7R745**** serial. Is that enough to be able to downgrade it or do I also need the bootloader to be 3.9? Did not understand if a *745***** serial has automatically bootloader 3.9 or if it is possibile that a *745***** serial has also 4.6 bootlader and therefor is not possibile to downgrade.
iMuseum (2 months ago)
Thanks! So much easier than soundies tutorial! Works great. Only it took like a week to get an XP and from there realize it had virus, wipe it, reinstall windows, and get chrome and service pack 3.........
Max Ro (3 months ago)
My iPhone 2G is stuck at "Please wait - Determining current settings..." in BootNeuter 2.1 when trying to unlock with iOS 3.1.2. Any ideas how to solve this?
Homie John Tech (5 months ago)
You should make a iPod Version. :D
S1ZZURP (4 months ago)
yes im still waiting for ipod touch 1g downgrade to its original firmware :D
S1ZZURP (5 months ago)
does windows xp without internet work? i just have an old laptop running windows xp
S1ZZURP (5 months ago)
Thank you, did everything on windows 10 using compatibilty mode XDD
Jayden Rise (5 months ago)
Hi, I have a problem. When I plug in my iPhone 2g to my computer, it doesn’t show up on iTunes, and the phone doesn’t charge or detect that there’s anything plugged into it. The phone charges just fine when it’s plugged in anywhere else. I have a MacBook Pro on the latest version of iTunes. iTunes recognizes my iPhone 7+ and my iPad 2 just fine. Also, when I open up system information from the Apple menu and go to USB, it doesn’t say I have anything plugged into it. How do I fix this?
JustFourFun (6 months ago)
Sounds pretty young but you know what your talking about *subscribed*
Gustavo Condori (5 months ago)
Shane 0517 are you able to sync it with the lastest itunes after this downgrade?
GeoByJustin (6 months ago)
how i can download the pack
S1ZZURP (5 months ago)
just open the description of this video.
Howie (6 months ago)
thanks a lot it fucking works
Gustavo Condori (5 months ago)
Howie are you able to sync it with the lastest itunes after this downgrade?
Chase-Fish 123 (6 months ago)
Will XX744XXXXX work?
Tech It Out (7 months ago)
please help me
Tech It Out (7 months ago)
also my iPhone screen just turns white
Tech It Out (7 months ago)
my iPhone connects to iTunes but when it detects it while it is in dfu mode nothing shows up it is just black. In other words I don't have an option to restore
anyway to downgrade the iPod touch 1G?
S1ZZURP (5 months ago)
hopefully he drops a tutorial
Tech It Out (7 months ago)
it wont run on windows xp it says it has some issue with some thing from a newer iTunes version. It said it was iTunes Library.itl. Please Help!!
Tech It Out (7 months ago)
techtoolbox thanks it worked
techtoolbox (7 months ago)
Go into your Music folder and delete the iTunes folder. That should fix it :)
Tech It Out (7 months ago)
You made that folder all by yourself? Dang you really know your stuff
Tech It Out (7 months ago)
by any chance was EverythingApplePro your inspiration? Cause your video looks a lot like his. He was my inspiration
techtoolbox (7 months ago)
He's not my inspiration, but I do enjoy his content.
William (7 months ago)
Recovery mode is the same thing as dfu mode.
Angel Dávila (8 months ago)
Apple is signing ios 1.0 for the 2G 😁😁😁
S1ZZURP (5 months ago)
yes but you cant downgrade to it using itunes u idi0t
Dan Graham (8 months ago)
Hi I know this is an old video but ibiickr does not work it just shows a blank screen when i start up the program, any help?, Thanks
Dan Graham (8 months ago)
Thank you for replying it worked! thank you so much
techtoolbox (8 months ago)
Try disabling all internet connections on your PC and then opening up iBrickr.
Homie John Tech (8 months ago)
Will this Work with a iPod Touch 1G? The Model Number is A1213 and It's a 8GB Model. The Reason I want to Downgrade is Because I'm running 3.1.3 and I want to get Whited00r 7 on my iPod but it Wont work. So I'm trying to Downgrade to like iOS 1.1.5 on it So I can do the Upgrade to Whited00r 7. Any Help Please?
Homie John Tech (8 months ago)
Wait! Nevermind, I got it to Work! I just went to my Mac, Loaded up iTunes 11 and did all the Stuff! Boom, It worked!
Homie John Tech (8 months ago)
I already did that. but thanks for trying to help. I'm Using the Latest iTunes and a Good Cable too and Good Ports.
techtoolbox (8 months ago)
Lucky Tutorials Try putting your device into PWNED DFU mode before restoring to Whited00r 7.
Homie John Tech (8 months ago)
Ok Thanks! Could you Possibly Help me with Whited00r 7 Please?
techtoolbox (8 months ago)
Lucky Tutorials You must use Windows XP on a physical machine because Windows 10 doesn't support the necessary drivers and a VM would have issues with connects/disconnects during restore.
Calculator Man (9 months ago)
Do you actually have a windows do computer to do it on? How'd you get it?
Ishak Modtres Games (9 months ago)
This is Windows XP SP3
techtoolbox (9 months ago)
Yup.
Le Vocine dal Tubo (9 months ago)
I subscribed, I clicked on Like Button, I will Share this video, and I wrote a comment. Man, you are a genius! Congratulations. Bring back my iPhone to iOS 1.0 was my dream since long time. Now, thanks to you, this is true. Do you know how to install Installer?
Gustavo Condori (5 months ago)
Le Vocine dal Tubo are you able to sync it with the lastest itunes after this downgrade?
RED_SCORPION_FTRS (10 months ago)
Can I sync my iPhone with iTunes after the downgrade?
techtoolbox (10 months ago)
That works, but you won't be able to sync after jailbreaking and unlocking.
RED_SCORPION_FTRS (10 months ago)
But I can sync with iTunes if I activate iPhone 2G with Ziphone.I can copy music and videos to it,then jailbreak it with iBrickr,Unlock with AnySim and Voila!Maybe it will work?
techtoolbox (10 months ago)
It's pretty much the same thing with ZiPhone. Both methods are Hacktivating the phone so you won't be able to sync regardless.
RED_SCORPION_FTRS (10 months ago)
But if I use Ziphone?
techtoolbox (10 months ago)
Unfortunately not. The Hacktivate method used makes it so the iPhone cannot sync.
Vartan K. (11 months ago)
Hi Techtoolbox...I succeeded all the way up to PXL , then ibiickr kept making me restart the phone, and never a chance to put in the Anysim PXL....any other way to put in the PXL?
Garrett Driskill (11 months ago)
Ibrickr doesn’t sense my iPhone. I am on iOS 1.0
Garrett Driskill (11 months ago)
If anyone has windows 7 and got XP mode to work, keep in mind that you may need to re “attach” the iPhone a couple times quickly during the restore process
le Art (11 months ago)
very nice :) just a question.. how to downgrade ipod touch 1st to ios 2.2.1? im able to go to ios 1.1 - 1.5 with win xp and itunes 7.5 but after that not to ios 2.. it used to work a couple of moth ago, now it dont.. any clue? best regards (subscribed)
techtoolbox (11 months ago)
I can make a video on how to downgrade to any 2.X version, but the process requires the use of iTunes 10 to downgrade.
Joshua Hoffmann (1 year ago)
Thats the best tutorial i've ever seen! My iPhone 2G is now on iPhone OS 1.0! Thank you!
Gustavo Condori (5 months ago)
Joshua Hoffmann are you able to sync it with the lastest itunes after this downgrade?
powd3r (1 year ago)
Will my iPhone 2G 8GB XX739XXXXXX Work?
S1ZZURP (5 months ago)
yes not sure
Lukas Leboss (1 year ago)
Yes
AppleCollector (1 year ago)
do you have to pay anything to do the process or its all completely free?
Lukas Leboss (1 year ago)
Payload is a activation file for iOS 1. And the only program that can be payd is a VM program
AppleCollector (1 year ago)
why is one file named payload?
AppleCollector (1 year ago)
Thank you for replying, cause similar applications you just use it once for free and the next time you have to pay in order to use. But all of these programs you can use whenever and never have to pay to use?
techtoolbox (1 year ago)
It's all completely free.
Gianluca Palmisano (1 year ago)
I have the third number is 7 and the next two number 51 and doesn't work
Gianluca Palmisano (1 year ago)
Hello thank you very much for this important video, but I'm blocked at minutes 7:20, my iPhone has blocked in apple logo and wheel white, and iTunes is blocked in waiting iPhone !!! So how many minutes for this procedure? I'm waiting from a lot of minutes in this mode!! Can you help me?
Lukas Leboss (1 year ago)
I can't thank you enough, it just worked so well !!! But I didn't test the unlock process because I don't need it and it worked good with parallels desktop but not with Virtual Box 📦 because I had host problems.
Nino Teichmann (1 year ago)
Hey I need your help, if I want to restore my iPhone with IOS 1.0, I have only a white screen and get the error 1601. Can you help me?
Ethan Whitmer (1 year ago)
Thanks can you do a video on how to downgrade a iphone 2g to ios 1.1.1 ?
Ethan Whitmer (1 year ago)
Thanks can you do a video on how to downgrade a iphone 2g to ios 1.1.1 ?
Gustavo Condori (5 months ago)
Ethan Whitmer no
Ethan Whitmer (1 year ago)
Thanks can you do a video on how to downgrade a iphone 2g to ios 1.1.1 ?
Ethan Whitmer (1 year ago)
Thanks can you do a video on how to downgrade a iphone 2g to ios 1.1.1 ?
techtoolbox (1 year ago)
It is the same process as in the video, but instead of using the 1.0 IPSW, you have to use the 1.1.1 IPSW.
Ethan Whitmer (1 year ago)
Thanks can you do a video on how to downgrade a iphone 2g to ios 1.1.1 ?
Ethan Whitmer (1 year ago)
What is the OLDEST firmweare/ios that all iphone 2g's can support
Ethan Whitmer (3 months ago)
ok, thank you. i got ios 1.1.4 installed. i wish ios 1.1.1 could work. i don't know if ot does tho because i don't want to mess up my phone. But thanks about the 1.1.4 suggestion, 1.1.4 is still a nice operating system to use. :)
Lukas Leboss (1 year ago)
Ethan Whitmer I am not sure but I think it is iOS 1.1.4
Ethan Whitmer (1 year ago)
Why cant all iphone 2g's run ios 1.0 ?
Ethan Whitmer (1 year ago)
can you do a video on how to downgrade a iphone 2g to ios 1.1.1 ?
Ethan Whitmer (1 year ago)
Thanks can you do a video on how to downgrade a iphone 2g to ios 1.1.1 ?
techtoolbox (1 year ago)
As far as I know, it was iOS 1.1.1.
Ethan Whitmer (1 year ago)
No what is the oldest firmweare/ios that all iphone 2g's can the the oldest ?
techtoolbox (1 year ago)
The last firmware available for the iPhone 2G was iOS 3.1.3.
Dario (1 year ago)
Hi, I have a problem or maybe I have just misunderstood something. When I plug in my iPhone 2G when running on my Windows XP computer, I get an error message saying: The software required for iPhone is not installed. Run the iTunes installer to remove iTunes, then install iTunes again. I have tried uninstalling and reinstalling iTunes 3 times using your -iPhone OS 1.0 Downgrade Kit-. When I saw the error, I have put the iPhone into DFU mode but nothing. iTunes does not detect it at all. I really need to downgrade my iPhone to OS 1.0. Please help. (I have checked my serial number and it must work: XX738XXXXXX)
Ferco minecraft (2 months ago)
I have this problem too.But I realized that you need 32 bit windows xp because itunes 7.5 is a 32 bit program
Garrett Driskill (11 months ago)
ItIshMeh I know this is 6 months late, and I’m not the OP but it seems like you need to find Apple mobile device support and download it
O Khan (1 year ago)
Great video man!
Cainan Corlett (1 year ago)
i have one of the 8gb 2007 ones (my nan gave it to me)
lastgen boi (1 year ago)
i have a different serial # XX813XXXXX
lastgen boi (1 year ago)
Lukas Leboss ok thanks
Lukas Leboss (1 year ago)
lastgen kid I am sorry 😐 for you but you can't but you can maybe try to downgrade to iOS 1.1 up to 1.1.4
91Tech (1 year ago)
Great video! Just picked up one of these and I'm hoping to be able to downgrade. Keep up the quality content!
ueuezaza (2 months ago)
Did not understand the thing about the bootloader. My iPhone has 7R745****** serial. Is that enough to be able to downgrade it or do I also need the bootloader to be 3.9? Did not understand if a **745****** serial has automatically bootloader 3.9 or if it is possibile that a **745****** serial has also 4.6 bootlader and therefor is not possibile to downgrade.
Ethan Whitmer (3 months ago)
If ios 1.0 won't work on your phone than you can install ios 1.1.4, because all iphone 2g's will support it.
Homie John Tech (5 months ago)
Lol, 91Tech before his Fame.
91Tech (1 year ago)
Looks like it should work :)
Lukas Leboss (1 year ago)
TechnoLogix91 check the serial number first !!!
David Cen (1 year ago)
hey i have a question, so i followed everything and went fine until in the anysim app, when i press "ok unlock my phone" it just freezes and does nothing
David Cen (1 year ago)
techtoolbox i actually tried reinstall it a few times even restored the ios 1.0 again but never worked. It's okay anyway, i unlocked my phone with ziphone instead and it worked flawlessly. Thank you!
techtoolbox (1 year ago)
Try to reinstall the AnySIM app and see if it works. Usually if it crashes that means the app doesn't have correct permissions to access the root filesystem.
hacks4live (1 year ago)
ipod touch 1g ?
techtoolbox (1 year ago)
+hacks4live Well you can't get iOS 1.0 on that device so this tutorial won't work unfortunately.
Henry Taylor (1 year ago)
Hello, I have a problem where iTunes will just say "Waiting for iPhone" when downgrading to iOS 1.0. I have the 3.9BR.
Lukas Leboss (1 year ago)
Henry Taylor it is maybe because the serial number is not supported and we need the serial number to know how old the iPhone is and when it's to young then it won't work
lastgen boi (1 year ago)
Henry Taylor same
Henry Taylor (1 year ago)
What if you have a valid AT&T SIM? I have a valid one and iTunes will activate the iPhone with no jailbreak. Should I remove the SIM before doing this?
Lukas Leboss (1 year ago)
iTunes on Windows XP will not reconise m'y iPhone why ?
Gta gaming (1 year ago)
Do u get the issue that ur iPhone doesn't show up on iTunes since it's on iOS 1.0
Gta gaming (1 year ago)
techtoolbox ?
Gta gaming (1 year ago)
So if I restore it and start again without hacktivating becuase I have got a sim which unlocks it will it work?
Gta gaming (1 year ago)
techtoolbox what do u mean so iTunes can't ever activate it anymore ?
techtoolbox (1 year ago)
+Gta gaming Yes I do. It's a result of hacktivating the phone.
iSebastian (1 year ago)
My Serial number is XX726XXX Will that work?
Lukas Leboss (1 year ago)
The Apple Enthusiast with the Apple web site Apple says that is a USB problem you CAN Check the web site for more info
iSebastian (1 year ago)
thanks but my problem is i keep getting error 1604
techtoolbox (1 year ago)
+The Apple Enthusiast Yes your serial number will work.
Gta gaming (1 year ago)
Thank you so much man! I have one issue I'm having trouble on ibrickr when I do all the steps when I click check for PXL it just makes me install it again and I can't move on to the other steps I have tried many times :(
Garrett Driskill (11 months ago)
Gta gaming you need Apple mobile device support or an older version
Lukas Leboss (1 year ago)
Gta gaming of course you jailbreak it if you did the iLiberty step you just didn't install Cydia but to "hacktivate" iOS 1.0 you must jailbreak and MAYBE try to put your iPhone into recovery mod not dfu and restore to iOS 3.1.3 and do all the steps again
Gta gaming (1 year ago)
Lukas Leboss i haven't jailbroken it
Lukas Leboss (1 year ago)
Gta gaming this is maybe a glitch with the iOS 1.0 jailbreak
Gta gaming (1 year ago)
That's the issue I can't can u Skype ? Or nah
Gta gaming (1 year ago)
Please help me ... I won't show up on iTunes :(
Gta gaming (1 year ago)
I'm having trouble with ibrickr
buzz fix (1 year ago)
Will my iPhone 2G work my iPhone was bought in week 39 of 2007
techtoolbox (1 year ago)
Yes! Your iPhone will work because it has Bootloader 3.9.
Can i downgrade XX742XXXXXX ?
Thank you)
techtoolbox (1 year ago)
Yes! Your iPhone was made in the 42nd week of 2007, thus it has bootloader 3.9.
Hello, where can i find bootloader number? Tell me, please
Odonkor_22 (1 year ago)
Hey, I'm having an iPhone 2G 4GB. It's officially unlocked by at&t and it's running iOS 2.2.1. Could I skip the unlocking steps and also the first step with 3.1.3?
Odonkor_22 (1 year ago)
I hvae a huge problem!:((( I did it like you said.. After upgrading to 1.1.1 error 1011 came. After that I tried to restore to iOS 3.1.3 but nothing is working. The screen is white and it comes error 2001 or 1600. what can I do? Please help me:(( is my iPhone dead?:((((
Odonkor_22 (1 year ago)
BTW you earned a new subscriber;)
Odonkor_22 (1 year ago)
Nice, thanks! And are you sure that it goes so simple? Recovery or DFU mode?
techtoolbox (1 year ago)
+Odonkor_22 Just put your iPhone into recovery mode and then you can shift restore the 1.1.1 IPSW.
Odonkor_22 (1 year ago)
It worked just fine, thank you so much!:) Is there a way to downgrade to iOS 1.1.1? Or can I update if I'm at 1.0 to 1.1.1 just by holding the shift button?
iSebastian (1 year ago)
My iPhone on windows xp doesnt come up
iSebastian (1 year ago)
woo hoo i got it
Lukas Leboss (1 year ago)
yes but i forgot to write that it could work with 48 as the 4th and 5th number
techtoolbox (1 year ago)
+Lukas Leboss Thank you for the useful information, I will add that to the description.
Lukas Leboss (1 year ago)
Sebastian Smith oh if you are still here your iPhone 2G need To have a "correct" serial number which is the third number ned to be a 7 which means 2007 and the forth and fifth number need to be 45 or below which means the month of the year for exemple XX738XXX... was build in the 38th month of 2007.
iSebastian (1 year ago)
either error 22 or 1
Gatorzooka (1 year ago)
I did all of the steps and when i shift click to restore to 1.0, the phone gets stuck on a white screen and then gives me an error code, this phone has a serial number that is produced in week 40, so it should be able to work, do you know what im doing wrong lol
techtoolbox (1 year ago)
What's the error code you are getting? I would suggest trying to restore back to 3.1.3 and using redsn0w. Then downgrade back to 1.0. Sometimes I had to do that because the phone refused to restore the first time.
Lukas Leboss (1 year ago)
Ohhh this video was really cool but can you say me how to run windows XP on windows 10 without loosing my windows 10 machine data I can maybe try a virtual machine and an other question does it work in France 🇫🇷?
Lukas Leboss (1 year ago)
And yes but was you able to sync with iTunes 7.5 ? Because I downgrade it a second time but this time I activated it with ZiPhone 3.0 (wich doesn't seems to jailbreak the file system) and iTunes 7.5 worked to sync media, but the iTunes Store doesn't work anymore on this version of iTunes, but with iLiberty when I activated it, it Jaiobreak it and I was not able to use it with iTunes 7.5. And after downgrading I was only able to charge it with my computer and you ?
techtoolbox (1 year ago)
Try downloading VirtualBox and make a virtual machine for Windows XP. Also, this works anywhere since you do not need an internet connection to downgrade. Hope this helped you out :)
can you give me a link to your computer wallpaper or message me it on google plus
techtoolbox thanks
techtoolbox (1 year ago)
Here it is: http://www.facets.la/wallpaper/W_2013_198.jpg ;D

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