How to Manually Upgrade HTC Google Nexus One to Gingerbread 2.3.

Step-by-Step Guide

1. 1

   Step 1: Before you do anything

   Make sure your privacy settings are set to back up and automatically restore your data.
   
   All your applications should technically be automatically downloaded after the upgrade.
   
   You will effectively be resetting your phone to complete stock.
2. 2

   Step 2: backup all your information on the Google Cloud and on your SD card and/or PC.

   Don't forget to backup your info. ,*Last chance to backup your files. ,, HBOOT will automatically scan the SD card and find Passimg.zip, be patient. , Do not turn off the phone.
   
   The phone will reboot after the upgrade, skip all the preliminaries and do nothing for now. ,,,,,,,,, ,,, Enjoy Gingerbread
   2.3.3 on your HTC Google Nexus One.
3. 3

   Step 3: You will need to download two files

4. 4

   Step 4: zip archives: Passimg.zip (thank you danger-rat) b119f8.signed-passion-ota-102588.656099b1.zip (thank you mfkr) To make things easier

5. 5

   Step 5: make a folder and put these two files inside.

6. 6

   Step 6: In your SD root (not in a folder)

7. 7

   Step 7: copy Passing.zip.

8. 8

   Step 8: Turn off your phone.

9. 9

   Step 9: Press the power button and volume down simultaneously.

10. 10

    Step 10: Press volume up to apply the upgrade.

11. 11

    Step 11: Connect it to your computer

12. 12

    Step 12: turn on USB storage and delete Passimg.zip

13. 13

    Step 13: Rename 656099b119f8.signed-passion-ota-102588.656099b1.zip to update.zip

14. 14

    Step 14: Copy update.zip to your SD root.

15. 15

    Step 15: Turn off your phone.

16. 16

    Step 16: Press the power button and volume down simultaneously.

17. 17

    Step 17: Wait a couple of seconds and select Recovery.

18. 18

    Step 18: When the recovery logo (Android + Attention) shows up

19. 19

    Step 19: press volume up and power simultaneously If it doesn’t work the first time

20. 20

    Step 20: keep trying: it’s hard to get the timing right.

21. 21

    Step 21: When the menu comes up

22. 22

    Step 22: scroll with the trackball to Apply:SD/update.zip

23. 23

    Step 23: Wait for it to update (it will reboot twice and take long to turn on for the first time.)

24. 24

    Step 24: The phone will boot.

25. 25

    Step 25: Do a factory reset (Settings>Privacy>Factory Data Reset) for stability.

Detailed Guide

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