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How to downgrade back to 1.00 radio and .77 HBOOT for the OTA (S-OFF ONLY!!!)

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By Berzerker7, Senior Member on 18th August 2010, 06:35 AM
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Note: You *MUST* be s-OFF for this to work properly. If you're not, it won't work.

1. Download this zip file: http://www.mediafire.com/?mi4utrhbacdbbxt mirror: http://www.megaupload.com/?d=LSR7QG9W

2. Rename it to PB31IMG.zip (uppercase name and lowercase extension matters, make sure it's not .zip.zip also) and push it to the root of your sdcard, so it's /sdcard/PB31IMG.zip

2 1/2. MAKE A NANDROID BACKUP (in case you ever want to go back)

3. Reboot into HBOOT by holding vol down while booting up, or by typing "adb reboot oem-42"

4. Hit vol-up when it asks if you want to apply the zip.

5. Wait for it to finish, then reboot when it asks you to.

Congrats, now you're back to stock 2.1-update1 with the original 1.00 radio.

thanks to aiccucs for his work in compiling the stock zip!
Last edited by Berzerker7; 28th August 2010 at 02:22 AM.
 
 
18th August 2010, 06:36 AM |#2  
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Cheers, mate.
18th August 2010, 06:46 AM |#3  
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just curious but don't you also need to put back the stock recovery back on? and that zip is stock without root, right?
18th August 2010, 07:27 AM |#4  
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Quote:
Originally Posted by the337

just curious but don't you also need to put back the stock recovery back on? and that zip is stock without root, right?

Completely stock without root. Includes stock system, kernel, recovery, radio, and HBOOT as well as a data wipe. The only thing not stock is the fact you're still going to be S-OFF, but that's nothing really to worry about. VZW techs don't really know how to check that :P.
Last edited by Berzerker7; 18th August 2010 at 08:38 AM.
18th August 2010, 07:46 AM |#5  
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Doing this will 100% allow you to receive the OTA when Verizon finally releases it right?
18th August 2010, 08:06 AM |#6  
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Quote:
Originally Posted by ZFriedenreich

Doing this will 100% allow you to receive the OTA when Verizon finally releases it right?

Yes.

/10char
18th August 2010, 09:32 AM |#7  
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good work A++++
18th August 2010, 11:37 AM |#8  
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I had originally pulled the stock Rom image from the RUU (ran the RUU and snagged the image from the temp folder). I was able to flash back to that but had to do some trickery first pushing some files over to the phone in and then running some commands in ADB. Is this just that same image extracted directly from the stock RUU? Or has this been modified in some way?

I'm assuming it's either been modified to allow flashing without pushing those other two files first, or s-off disables the check that would normally throw a "image you are attempting to flash is older" error.
Last edited by bast525; 18th August 2010 at 11:40 AM.
18th August 2010, 12:29 PM |#9  
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I thought we could just flash stock recovery and apply the OTA... This route, we lose all our settings and apps, correct?

Sent from my Incredible via TapaTalk...
18th August 2010, 12:50 PM |#10  
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Awesome post! Thanks man

Sent from my ADR6300 using XDA App
18th August 2010, 12:57 PM |#11  
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And having S-Off, if VZW tries to remove our root ability, all we would have to do is install SU back on correct?

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