HTC EVO 4G LTE gets S-OFF for all current HBOOTs

freedom1 - for some reason we don't have an alt tag hereWhile the news from last week was that HBOOT 1.15 was downgradable, it’s now been confirmed that 1.19 is also hackable in the same fashion, meaning that regardless of the HBOOT you have, you can now force it to a point at which you can achieve S-OFF on any HTC EVO 4G LTE.

The method involves temporarily bricking the phone and re-writing partition information, followed by pushing a signed older HBOOT and radios. In other words, some pretty scary stuff.

A Linux live-CD is in the works at the moment which will contain all you need to get from locked down to unlocked. It appears that, at the moment, you’ll need either temp root or to be HTCDev unlocked in order to mess with the EMMC partition, so the method still may involve letting HTCDev know you’re rooting the device, as I don’t think there’s a temp-root exploit for newer versions of the EVO 4G LTE.

With S-OFF, you can flash kernels, radios, and unsigned bootloaders with no additional steps required.

It’s still a rather involved and scary process to achieve S-OFF at the moment, so if you can hold off, you probably should until someone puts together a guided walkthrough script.

The method they’re executing here looks a lot like the steps involved in the EVO 3D downgrade CD, although without the need for a paperclip. I’m even starting to wonder if this method might work across all HTC devices.

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Paul E King

Paul King started with GoodAndEVO in 2011, which merged with Pocketables, and as of 2018 he's evidently the owner. He lives in Nashville, works at a film production company, is married with two kids. Facebook | Twitter | Donate | More posts by Paul | Subscribe to Paul's posts

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6 thoughts on “HTC EVO 4G LTE gets S-OFF for all current HBOOTs

  • Avatar of Everett
    October 15, 2012 at 9:17 am

    So… Basically, from what it sounds like. You are bricking/killing your phone, then bringing it back to life as a zombie/vampire phone. LOL

    I think this is awesome! I am glad to know if I have to get my phone replaced, I can still attain s-off. Thanks for the info!

    • Avatar of Paul E King
      October 15, 2012 at 9:21 am

      What better root method for October? ;)

      Although I’d say it’s more a kill it, bring it back with someone else’s memories and programming. More like a Frankenstein’s Monster or RNA-implanted personality like in Larry Niven’s Known-Space universe.

      Frankenstein’s monster works best though I think.

  • Avatar of John Freml
    October 15, 2012 at 10:38 am

    This sounds awesome. I hope that the devs figure out a way to make this somewhat painless and more automated for people like me who like to root and tinker but who are too scared to all these steps themselves…

  • Avatar of chrislvb
    October 15, 2012 at 11:09 am

    I have waited this long, I will wait another week or two to see if they come out with an easier method. I’d like to be s-off finally, but don’t want to go through all the steps with the risk unless I absolutely have to.

  • Avatar of Shawn
    October 15, 2012 at 8:44 pm

    After some Googling, today I learned what S-OFF is. “Security Off.” Always thought there was just root.

  • Avatar of Sam
    October 16, 2012 at 11:27 pm

    Too scared of bricking, count me among the waiters.


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