Root 2.1 OTA and retain 1.4 PRI


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  1. Mr. Monkey

    Mr. Monkey Well-Known Member This Topic's Starter

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    So I just downgraded my 2.2 to 2.1 OTA. I do not want to used Unrevoked at all. So I am going to use this guide which is the same one I used to root my last 2.1.1.

    My question is... that guide uses an older PC36IMG that downgrades to 1.34 PRI, right? I'm trying to find a way that I can keep my 1.4 PRI that I have right now. Or maybe I am confused and my PRI wont be touched.

    Does anyone know how to keep my 1.4??

    ETA: Right now I am on 2.1.1 with 1.4 PRI.
     

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  2. Wile-E

    Wile-E Active Member

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    I just rooted this morning after updating to 1.4. I checked and still have 1.4 installed after rooting and flashing to Fresh 3.2
     
  3. Mr. Monkey

    Mr. Monkey Well-Known Member This Topic's Starter

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    Did you use unrevoked forever?
     
  4. Wile-E

    Wile-E Active Member

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    Yes. With the exception of a few difficulties/oddities, I it went smoothly.

    If you are interested, my trouble spots were as follows:

    1) The Win XP computer I was planning to use would not transfer the files to the SD card initially. It would say "0 bytes" Switched to a Win 7 pc and that solved that (I think it was due to the age of my XP system, not the OS itself)

    2) I did NOT need to toggle the airplane mode

    3) I forgot about the modified hboot drivers. Just needed to install.

    The video that is linked from the XDA instructions (How to Root the HTC EVO 4G with Froyo 2.2 [Video Walkthrough] | The Droid Demos )was immeasurably helpful, as well as all of the comments made here. I am deeply grateful to everyone who contributed to the effort, whether programing or through their experiences.
     
  5. pb2

    pb2 Member

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    How do you downgrade to 2.1?

    I have 2.2 on my HTC EVO (updated OTA) and need to go back to 2.1. This is primarily because 2.2 doesn't deal with client certificates properly and as a result I can no longer get my work e-mail.

    Thanks,
    PB
     
  6. Mr. Monkey

    Mr. Monkey Well-Known Member This Topic's Starter

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    This guide will take you back to 2.1. Just go up until the part that explains to go to unrevoked.com.
     
  7. KewlKat007

    KewlKat007 Member

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    Hey guys I did root my phone using that guide Mr. Monkey posted but how do I know(currently running CM6) what number my PRI is? I know it doesn't show up in the settings of CM6.

    I remember updating the PRI and such before I did all this root stuff.
     
  8. Mr. Monkey

    Mr. Monkey Well-Known Member This Topic's Starter

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    After rooting my phone I noticed it took me back to PRI 1.34. Not a huuuuge deal, but I thought if I could leave it at 1.4 it would be better.

    My guess is you're at 1.34 with me. I can't find it in settings either.
     

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