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Root S-OFF available

Discussion in 'Android Devices' started by teppic74, Sep 29, 2010.

  1. teppic74

    teppic74 Android Enthusiast
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    Last night the hack to reflash hboot became available. This is normally impossible, but an exploit is used to replace it with a new version that allows S-OFF (security off), sometimes called full root.

    Page is here:

    AlphaRev

    It's brand new software and IT CAN PERMANENTLY BRICK YOUR PHONE if it goes wrong.
     

    Advertisement

    anoniemouse and SUroot like this.
  2. teppic74

    teppic74 Android Enthusiast
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    A big benefit of this is that if your phone won't boot and you don't have a goldcard, you should now be able to flash recovery directly (previously impossible), and from there install a new custom ROM.

    Since all it does is flash hboot, any upgrade to a new official ROM will remove the change - which is going to be essential for warranty purposes (HTC won't be impressed if they see S-OFF).
     
  3. SUroot

    SUroot Android Expert
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    Wicked. Cheers.
     
  4. droidzone

    droidzone Android Enthusiast
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    Wow..That was fast..Werent we discussing about wrecking phones with S-OFF just yesterday? ;)

    Have you taken the plunge?

    Practically, once I do an S-OFF, what advantages can it provide? Can any of the existing apps take advantage of it?
     
  5. teppic74

    teppic74 Android Enthusiast
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    Apps won't benefit from S-OFF. It's useful for developers and for recovery/rooting.
     
  6. droidzone

    droidzone Android Enthusiast
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    How so, for recovery/rooting?
     
  7. teppic74

    teppic74 Android Enthusiast
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    The bootloader normally only allows HTC-signed flash updates. With this you can flash unsigned ones, so you can directly flash recovery to the latest clockworkmod (even if your phone won't boot). Or you can just flash the images from an official ROM without needing a goldcard. And rooting any existing ROM is trivial.
     
  8. droidzone

    droidzone Android Enthusiast
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    Hmm..If the phone wont boot, then at what stage can we flash it. Normally, we flash in boot, right? But if boot is corrupted would a computer recognize the device and assign drivers for it?
     
  9. teppic74

    teppic74 Android Enthusiast
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    The bootloader is a tiny bit of code that isn't part of the ROM or recovery (it loads either of those). So if you screw up your ROM and recovery, the bootloader is fine, and still lets you flash. That's why there's a risk here. If this corrupts your bootloader, there is absolutely no way you'll ever be able to switch the phone on again let alone flash it. The risk is small, but it is there, and that always needs to be made very clear.
     
  10. droidzone

    droidzone Android Enthusiast
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    And Alpharev is supposed to be a patch over the bootloader!

    One more thing..Alpharev says it will be overwritten when an RUU is flashed. Does that mean an RUU flashing process is also dangerous, since it also writes to HBOOT (Whether official or not)?
     
  11. teppic74

    teppic74 Android Enthusiast
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    The RUU process flashes the bootloader, yes, but it does so in a very secure way that isn't using a security exploit, so it's as safe as possible.
     
  12. anoniemouse

    anoniemouse Android Expert
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    Button Moon
    Downloaded that for future use earlier today, then came in here & saw your post.
     
  13. Rastaman-FB

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  14. DesirableHTC

    DesirableHTC Well-Known Member
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    I have S-Off! Don't see many benefits atm, but im sure it will come in handy at some point..... My benefit is being able to delete pesky apps that are on the rom, footprints, amazon MP3 etc...
     
  15. SUroot

    SUroot Android Expert
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    You can do that with adb shell. Also, you can just remove the apps from the rom.zip file and reflash it over your existing rom. Thats what I do.
     
  16. DesirableHTC

    DesirableHTC Well-Known Member
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    but root explorer is easier :eek:
     
  17. SUroot

    SUroot Android Expert
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    fair point ;)
     
  18. sookster54

    sookster54 Android Expert
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    I just rooted my stock 2.2 with unrevoked 3.21 in Linux and went smoothly, thing is unrevoked had "disable security" checked, I'm not sure if it actually disabled it or not, I would like it kept turned on and not sure how to find out if it is or not.

    Nevermind, booted into bootloader and I see "S-ON", good.
     
  19. rx93

    rx93 Well-Known Member
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    Got my phone S-OFF in less than 10 mins.

    Now I can customize my boot screen. :D:D:D
     
  20. landwomble

    landwomble Newbie
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    Yep, it's worth doing. Custom boot screen is nice (I added my email address/landline number to it), having proper R/W to /system whilst phone booted very nice indeed. Also massive convenience when flashing unsigned files etc.
     
  21. rx93

    rx93 Well-Known Member
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    Anyone notices that phone runs smooth and faster after S-OFF? Mine does.
     
  22. teppic74

    teppic74 Android Enthusiast
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    No it doesn't. It's completely impossible.
     
  23. sookster54

    sookster54 Android Expert
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    Placebo effect, all it does is disables the need to install signed zips.
     
  24. frechet4

    frechet4 Newbie
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    I just want to be clear...this is currently only for the GSM desire? I was directed here from a different thread where I indicated I have a CDMA (just for the record)
     
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