[GUIDE] Simple ENG S-OFF

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Edit: This method will most likely require radio s-off to work. Not as useful as I thought first but still less hassle if you often switch from ruu stock to custom roms.

Hi all.

I recently wanted to go from stock 1.72 to CM7 and didn't want to go through downgrades etc. so I simply took a test PD98IMG.zip and removed everything except the hboot (which is eng s-off) and placed on the SD-card. I then rebooted into bootloader and it flashed the new hboot for me. It was then easy to flash recovery using fastboot.

Since it was so easy and I didn't manage to find this method described I decided to create this thread. Feel free to move/remove if this is old news.

I tested this on my phone several times using the zip below. I do however not guarantee anything.

peace!


Instructions:

1. Download file PD98IMG.zip.
(md5 01f950f719cf12d8c39d62b513203789)

2. Copy to SD-card.

3. Reboot to bootloader ("adb reboot-bootloader" or restart phone with volume down pressed)

4. Follow on-screen instructions

Guess if it will work, it's gonna be much more simpler to downgrade our HDs! Thanks a lot mate, thumbs up for the great idea!!

Was your phone radio s-off? If it was not, this is great news, and a big big mistake from HTC But I have to say, it sounds pretty unbelievable that they would sign an engineering hboot..

Sent from my Desire HD using Tapatalk

Originally Posted by jkoljo

Was your phone radio s-off? If it was not, this is great news, and a big big mistake from HTC But I have to say, it sounds pretty unbelievable that they would sign an engineering hboot..

Sent from my Desire HD using Tapatalk

You're most likely right as my phone was in fact Radio S-OFF already. It still helps when switching from stock ruu to custom roms for us with radio s-off though.

Yep, that's what I thought. With radio s-off + root it is a 10 second deal to make ENG S-OFF with my tool, but this definitely helps people who do not have root.

Bit off topic but I got recovery and I got s-on now and I can still flash custom roms in on coredroid v6 have I done something because I still got s-on

Sent from my LT15i using XDA Premium App

This worked wonderfully!!! Thank you!!!!