How to Upgrade iPhone 3gS & iPhone 4 to Custom 4.3.1 Firmware Preserving your baseband

25 Comments on "How to Upgrade iPhone 3gS & iPhone 4 to Custom 4.3.1 Firmware Preserving your baseband"

  1. Chazzos says:

    great video. Does anyone know how I can fix my Iphone 3g? Its stuck on the boot logo for 5 minutes then the “download circle” shows up on the lower part of the apple symbol. Then the phone restarts its self and the process starts over again until the battery dies. My computer will not register the Iphone but it will register other Iphones. I do not get a option in my computer under the hardware>device manager section. Iphone will charge but no charge symbol shows up.

  2. Nimishkapoor1 says:

    Thumbs up if there was no 6:59

  3. AlexCampos2 says:

    I have an iPhone 3GS with 4.2.1. I followed your instructions to the point of hitting Shit+Restore, browsed the Custom 4.3.1 ipsw file. iTunes begins to extract the software and after that an error window pops up that says: iPhone cannot be restored. unkown error (3194). What can I do now? My phone still is in DFU mode…

  4. sotossendos11 says:

    alert 3194 help

  5. davidthemaggot says:

    so, when i’m done upgrading it, i can use redsnow again to install cydia in the iphone? thanks btw

  6. c4life2828 says:

    Everyone wants or needs a iPhone 4s for FREE. Text (txtme iPhone) To (368638) to get it.

  7. nomisil says:

    what version of itunes are u running? i’ve been using itunes10 and it stops installing the firmware right when it gets to the part when it contacts apple servers..

  8. srbhambre says:

    i have 3gs with 4.0.1 8A(306). my iphone restarts every 5 mins and my network , wifi , bluetooth is not working. all the apps r working perfectly but my iphone restarts every 5 mins

    network – shows no sim,
    wifi – button is discolored

    itunes pops a msg saying restore your iphone .

    what should i do iam crying in pain i really need to fix my iphone , should i restore to 4.3 OS

  9. irqusa79 says:

    I have Iphone 3gs, and its running on 4.0.2 and baseband 05.13.04. is there any way for me to upgrade to 4.3.3 or any latest versions? thank you!

  10. filmwerk says:

    Seems, that the issue of preserving 3rd party applications plus data of these apps, not to forget notes/calendar/addressbook, are never really addressed. Though I appreciate your insight and videos, I do need to ask the questions, if – while enjoying the new iOS on both phones – I would have to re-install all apps of my JB+unlocked iPhone 3G + 3GS and especially how to make sure not to lose all of these apps (currently 124) during the upgrading process. MANY THANKS in advance!

  11. CODofficer says:

    @eastazn will all the apps be restored

  12. rafaeybuksh says:

    dude will i loose all my data?

  13. eastazn says:

    thanks broo working great for me

  14. kashim12341 says:

    great video just a few questions for clarity

    1. i am in the uk and my iphone is unlocked to any network will your video affect this

    2. will it still be usable in the uk

  15. KurdsNL says:

    YOU ARE GREAT ! thanx alot mate !

  16. Masterivia says:

    The jailbreak/(cydia) will be already installed after all this is done and is it a unthetherd jailbreak?

  17. iPhoneJailB says:

    Hey,

    I have a jailbroken iPhone 3GS on version 3.1.3 MC model, Baseband 05.12.01, and i want to update it to version 4.3.1, if i follow these steps will they update and my jailbroken games from Installous be there?

  18. gtf564 says:

    Hello emac2299…first of all, thanks for all you do. could you help me with the following error message when I tried restoring the custom FW – “The iphone “iPhone” could not be restored. This device isn’t eligible for the requested build.”

  19. Xavenger1988 says:

    emac2299, HELP PLEASE! I followed all the steps. At the end when it was verifying iphone restore with Apple, I got the error message: “The iPhone ‘iPhone’ could not be restored. An unknown error occurred (3194).”

    Worst part is that my iphone is remained off right now, and I cannot turn it back on.

    Please help me!

  20. Psynani says:

    Hey man, I have an iphone 3GS Firmware 4.0 and baseband 05.13.04 jailbroken using jailbreakme AND an iphone 4 firmware 4.2.1 baseband 03.10.01 jailbroken using greenpois0n and unlocked using the gevey sim.
    Can i use your method to upgrade to 4.3.1?
    Please please please reply! Thanks :)

  21. Erickhateskyle says:

    I have a iphone 3gs, should i follow this video and update to 4.31 or should i follow the old video and update to 4.21?

    Which should i follow Emac… Btw i love ur videos :)

  22. shazad3 says:

    thankx alottttt.. bro.. you are the best; it really did work, n specially after having your kind help… it was just a piece of cake.
    thanxxxx again… its a great great job you are doing

  23. puneetobrah says:

    hi emac how r u ?u r the best you tuber in terms of explaining things so easily,my bro just bought an iphone 4 running on 4.3 firmware so can i unlock on 4.3 firmware after the unthetherd jailbreak pls help.

  24. shazad3 says:

    hey, i m stuck on error 3900 or something while custom restoring from itunes, what the hell to d now?

  25. elektro103 says:

    does this apply for iphone 3G iOs 4.1 baseband 6.15.00?

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