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Rolling back the OTA update? How?

Discussion in 'Android Devices' started by mobiousdigital, Feb 3, 2010.

  1. mobiousdigital

    mobiousdigital Active Member
    Thread Starter
    15

    Dec 30, 2009
    35
    0
    15
    Web Develloper / System Administrator
    United Kingdom
    hi all,

    is there a way to return to factory default pre-OTA manual update? not rooted here and no intention of doing so just wondering if I can completely flatten and re-start the phone to how it was previously?

    thanks.
     

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  2. craigacgomez

    craigacgomez New Member
    5

    Feb 3, 2010
    2
    0
    5
    Yes, you can reflash the stock original shipping ROM and radio firmware, and then apply the update if you wish...

    1. Download the original shipping ROM from here.
    2. Disable backup my settings under privacy settings.
    3. Do a factory data wipe within Android. Settings => Privacy Settings => Factory Data Reset
    4. Unzip the original shipping ROM.
    5. Plug in Nexus One with USB to computer (enable usb debug mode)
    6. Boot in bootloader mode -> adb reboot bootloader
    7. Confirm fastboot connection -> fastboot devices
    8. Flash user data partition -> fastboot flash userdata /path/to/userdata.img
    9. Flash boot partition -> fastboot flash boot /path/to/boot.img
    10.Flash system partition -> fastboot flash system /path/to/system.img
    11.Flash radio partition -> fastboot flash radio /path/to/Radio*.img (I cannot remember the name of the radio img file)
    12. Flash recovery partition -> fastboot flash recovery /ath/to/recovery.img
    13. Reboot -> fastboot reboot

    You may choose to skip the recovery and radio flash. After this, you will have the stock original shipping ROM and radio firmware.

    Credits: XDADevelopers for steps and original shipping ROM.
     
  3. mobiousdigital

    mobiousdigital Active Member
    Thread Starter
    15

    Dec 30, 2009
    35
    0
    15
    Web Develloper / System Administrator
    United Kingdom
    Can anyone confirm this is correct? a lot of money to brick a phone if I do it wrongly! thanks.
     
  4. rori

    rori Well-Known Member
    35

    Jan 7, 2010
    90
    0
    35
    Austria/Vienna
    ..but, why do you want to downgrade? - the multitouch upgrade is very nice :)
     
  5. mudrock1000

    mudrock1000 Well-Known Member
    38

    Jan 9, 2010
    288
    13
    38
    Eating Babies (not related to my hobby)
    Colorado
    +1 If you have some problems tell us. I'm sure we could help. (I'm still waiting for the OTA update because i wanna expierience it...idk how to spell that anymore. God i suck)
     
  6. craigacgomez

    craigacgomez New Member
    5

    Feb 3, 2010
    2
    0
    5
    From personal experience, if you follow the steps properly, this will work. I have done it successfully...
     
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