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[Q] EVO 3D CDMA hboot 1.58 how to downgrade to 1.5

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prater
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Question [Q] EVO 3D CDMA hboot 1.58 how to downgrade to 1.5

Hello all,

First off, this is my first post, so if I posted in the wrong location please forgive me.

I have a EVO 3D CDMA (Sprint) phone. I am currently running hboot 1.58 S-OFF (juopunutbear) and MeanRom ICS, with 4ext recovery 1.0.0.5 RC9. Performance is terrible (lagging when playing games and even typing messages), and there are several features missing in ICS that I used in Gingerbread (call duration, message count, screen snapshots, etc).

I would like to downgrade to MeanRom on Gingerbread, with hboot 1.5 and TWRP recovery. I've already done some research so I need confirmation:

If I use bootloader:

To downgrade the hboot from 1.58 to 1.5, do I rename the hboot 1.5 to pg86img.zip, put the zip in the root file of the SD card, boot into bootloader and let the phone detect the zip file? I understand that the file has to be deleted after the phone is updated, how do I do that?

Once the hboot is downgraded, will 4ext still work, or do I have to change/upgrade it right away? Do I just run the 2.17 RUU to reset the phone to Gingerbread?

Also, can this be done via fastboot? If so, how?

I know these questions have been asked before, but I haven't seen any posts with my exact configuration. If there are any posts, please let me know.

Thanks for any help you have to offer.
 
donkeykong1
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Quote:
Originally Posted by prater View Post
Hello all,

First off, this is my first post, so if I posted in the wrong location please forgive me.

I have a EVO 3D CDMA (Sprint) phone. I am currently running hboot 1.58 S-OFF (juopunutbear) and MeanRom ICS, with 4ext recovery 1.0.0.5 RC9. Performance is terrible (lagging when playing games and even typing messages), and there are several features missing in ICS that I used in Gingerbread (call duration, message count, screen snapshots, etc).

I would like to downgrade to MeanRom on Gingerbread, with hboot 1.5 and TWRP recovery. I've already done some research so I need confirmation:

If I use bootloader:

To downgrade the hboot from 1.58 to 1.5, do I rename the hboot 1.5 to pg86img.zip, put the zip in the root file of the SD card, boot into bootloader and let the phone detect the zip file? I understand that the file has to be deleted after the phone is updated, how do I do that?

Once the hboot is downgraded, will 4ext still work, or do I have to change/upgrade it right away? Do I just run the 2.17 RUU to reset the phone to Gingerbread?

Also, can this be done via fastboot? If so, how?

I know these questions have been asked before, but I haven't seen any posts with my exact configuration. If there are any posts, please let me know.

Thanks for any help you have to offer.
If you're s- off you can do whatever you want. First - to downgrade h-boot just rename that h-boot zip to PG86IMG.zip and put it on root of your sd card. Then go to your bootloader and just follow prompts to flash new h-boot. When that's done, you don't need adb or anything like that. You can do everything directly on your phone

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