Confused - Upgrading rooted ERE27 to rooted FRF91


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  1. vitalyb

    vitalyb Member This Topic's Starter

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    Hi guys,

    I am sure it's been answered but I failed completely in finding what directions for my exact state and being a n00b when it comes to rooting, I've decided to ask first.

    I am currently on rooted T-Mobile's ERE27. This morning I got OTA upgrade, however, when I tried to install it I got the "verification failed" message. After I restarted the phone, I looked at the SD card and found no Update.zip of any kind.

    Several questions:
    1) Should I wait for an OTA? Will an OTA update work on rooted Nexus?
    2) If I have to do it manually, can someone please explain the steps I should take or link me to a guide that fits my state?
    3) Will an upgrade, manual or OTA, wipe the phone?

    Thanks,
    Vitlay
     

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  2. Teknologic

    Teknologic Well-Known Member

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    1. An OTA will only work with a stock recovery image, one of the first things to go when a phone is rooted. So probably not.
    2. Here's a link to xda with a link to frf91 for root users with different recoveries. Download the file and apply as explained in the sticky at the top of this forum (replace update.zip with root.zip)
    3. The update SHOULD leave your entire phone intact. However, you are rooted and thus have a greater chance of f'ing something up that'll ruin your phone. Be sure to make a thorough backup.

    Good luck!

    Sent from Mianus
     
  3. vitalyb

    vitalyb Member This Topic's Starter

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    Err, thanks for the answer, but where is the link? :confused:
     
  4. Teknologic

    Teknologic Well-Known Member

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    Haha, sorry that was an oversight. I'm on tapatalk so I didn't really notice, sorry.
    Here's the link I meant: forum.xda-developers.com/showthread.php?t=715799

    Sent from Mianus
     
  5. vitalyb

    vitalyb Member This Topic's Starter

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    Thanks for the link :)

    Now it says here (linked from your link):

    He says The radio hasn't changed since FRF50, so if you are using it, you can keep it and install the noradio version. and supplies the link without the radio update. The way I understand, it means I can't use this link since I am using ERE27 in which the radio IS different than FRF50/91.

    Am I correct? In that case should I look for a link to FRF50 and then upgrade to FRF91?

    Thanks!
     
  6. Rusty

    Rusty Well-Known Member

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    You could always flash the radio seperately after FRF91 is installed. Just be careful.
     
  7. interuser

    interuser New Member

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    Hi vitalyb.
    How did upgrading go from rooted ere27 to frf91?
    I have a rooted ere27 and I wannt to upgrade to frf91 as well.
    Can you please give me the actual steps you followed?
     
  8. vitalyb

    vitalyb Member This Topic's Starter

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    I've decided to postpone it for a few days to let it settle down more... I was sure that the OTA is going to work for me, didn't realize that rooting will also disable OTA updates =\. I will gladly update the thread as soon as I make the move.
     
  9. interuser

    interuser New Member

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    hi did you get a chance to perform the upgrade?
     
  10. vitalyb

    vitalyb Member This Topic's Starter

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    Hey,
    Yep, I eventually flashed it with the file from here and it worked fine. I was holding out for no reason, it was truly painless.

    Just make sure to take the correct file, if you're rooted, you need the one here:

     
  11. interuser

    interuser New Member

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    Hi. I rebooted to recovery mode and the message "E: can't open /cache/recovery/command" showed. I disregarded it and proceeded to install the update.zip file you mentioned above.
    But then the following messages showed:

    --install from sdcard
    finding update package
    opening update package
    verifying update package
    e: signature verification failed
    installation aborted

    I checked the file's md5 checksum and is ok.
    Any ideas as to what may be wrong?
    Is the message "E: can't open /cache/recovery/command" related?
    I remind you that I have an ERE27 rooted nexus one.

    Thanks
     
  12. vitalyb

    vitalyb Member This Topic's Starter

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    Err.. I think I misquoted, try this:

     
  13. interuser

    interuser New Member

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    apologies for asking too many questions, but is the above update (which I am downloading right now) going to lose my existing applications and data?
    It should not , right ?
     
  14. vitalyb

    vitalyb Member This Topic's Starter

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    Nope. It should be just fine.
    No worries, I was quite scared to upgrade myself.
     

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