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Prerequisites

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[T-Mo & ATT]

Stuck on FRF91?

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NEED TO DOWNGRADE?

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*please note, downgrading will wipe the phone



- Transfer the passimg.zip file to the MAIN directory of your SD card (as if your installing a manual update)



- Power down your phone



- Hold down the Volume Down button as you power your phone back on.



- A screen should appear showing your phone's system searching for various files. This will take up to 2 minutes.



- The phone will ask you if you want to start the update. Press the Volume Up button to start the update.



- If you followed these steps correctly, congratulations, you are now on stock EPE76 Android 2.1 and able to flash to any official Nexus One rom that has been released

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Upgrade Back To FRF85B AT THIS TIME

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​ - Download passimg.zip HERE - Transfer the passimg.zip file to the MAIN directory of your SD card (as if your installing a manual update)- Power down your phone- Hold down the Volume Down button as you power your phone back on.- A screen should appear showing your phone's system searching for various files. This will take up to 2 minutes.- The phone will ask you if you want to start the update. Press the Volume Up button to start the update.- If you followed these steps correctly, congratulations, you are now on stock EPE76 Android 2.1 and able to flash to any official Nexus One rom that has been released

Most of you already know how to do this, but in case you don't...

- Download the FRF85B file (linked above)

- Transfer it to the MAIN directory of your SD card (might want to remove passimg.zip)

- Rename the file update.zip (make sure its update.zip and not update.zip.zip)

- Power down phone

- Hold volume-(volume down) and click power. Continue holding volume down until you hit the white screen.

- Click "recovery" (you should be on a white screen with a large ! and an android on a skateboard)

- Hold power button and click volume+(volume up)

- Click apply:update.zip

- It'll install and you are now on FRF85B!



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Using Nexusroot.exe

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Preperation



Place Nexusroot.exe in your tools folder of the downloaded SDK file (example C:\Documents and Settings\Owner\Desktop\android-sdk-windows\tools) VIEW EXAMPLE Double click Nexusroot.exe - Necessary "push" files will automatically be placed in the appropriate directory (you will be prompted from here on out step by step what to do ​

- Locked Nexus One flashed with FRF85B - CLICK TO DOWNLOAD Use guide below to downgrade to EPE76. Then update back up to FRF85B)- Lastet SDK ( CLICK - Working ADB ( CLICK FOR INFO