Root 2.1 root-->1.5 downgrade-->OTA?

beefamato · May 27, 2010

I followed all of these instructions to downgrade my wife's rooted 2.1 and it seems to have worked fine. I've got it back to 1.5. She wanted the OTA upgrade because the 2.1 rooted version was giving her the silent call issue.

Again, I went back to 1.5 because I wanted the OTA update. After doing this, she got the OTA update notification, it downloaded, processed and then failed. I've also tried to install the OTA manually and it won't work. The hboot is version 1.47.

Has anybody had success downgrading their 2.1 rooted install to 1.5 and then getting the OTA update to work? I'm back at 1.5. What should I do next to get the OTA update working?

Thanks!

deathratlehead · May 27, 2010

beefamato said:
I followed all of these instructions to downgrade my wife's rooted 2.1 and it seems to have worked fine. I've got it back to 1.5. She wanted the OTA upgrade because the 2.1 rooted version was giving her the silent call issue.

Again, I went back to 1.5 because I wanted the OTA update. After doing this, she got the OTA update notification, it downloaded, processed and then failed. I've also tried to install the OTA manually and it won't work. The hboot is version 1.47.

Has anybody had success downgrading their 2.1 rooted install to 1.5 and then getting the OTA update to work? I'm back at 1.5. What should I do next to get the OTA update working?

Thanks!

You need to get rid of Amon's Recovery, because that is what was causing my OTA to fail. After I removed it, the ota installed just fine.

http://androidforums.com/474953-post1.html

Step three:
Plug your phone into your PC. Power your phone on using the power button (red) and send button (green). Your phone should now be sitting back at the bootloader screen and say FASTBOOT USB. Now on your PC, go to the sdk tools dir in command line. Issue this commanhttp://www.multiupload.com/6UE7AUN810d

Code:
fastboot flash recovery recovery.img
Let it flash, when done wait a minute (just to make sure).

Then issue this command

Code:
fastboot flash hboot hboot.nb0
Once this is done, wait a minute then pull your battery and restart your phone.

You are now back at factory stock.

beefamato · May 27, 2010

Thanks for the help, man. That did the trick!

I performed the downgrade on a different computer this time and flashing the recovery module seemed to go a lot smoother. I thought I did it right last time, but I guess not.

All is well! Thanks!

T2noob · May 27, 2010

or you could have just flashed plain jane that jcase made out of the ota all it is, is OTA with root.

jayrsowavy · Jun 10, 2010

straight newbie to all this. already flashed rom from 2.1 v2 to 1.5. how do you get sdk command or the program to completely work on windows 7 64-bit. do i need any other programs. i would like to have the original hboot and recovery system on my eris. having the same problem as beefamato. thanx for the help in advance guys

ThirdCoast · Jun 15, 2010

I am having the same issue, but i have tried step 3, here is what i get

FAILED (remote: not allow) when i try to flash the recovery.img

tymogr · Jun 26, 2010

"I am having the same issue, but i have tried step 3, here is what i get

FAILED (remote: not allow) when i try to flash the recovery.img"

I get the same thing. Anyone else?

Root 2.1 root-->1.5 downgrade-->OTA?

beefamato

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