As many HTC EVO 4G LTE owners know, the previous defacto S-OFF tool, Moonshine, worked up until the last OTA update to gain S-OFF on the device, but it fails on the newer versions of the EVO software. Luckily, developers beaups and fuses have made a new tool that achieves S-OFF with 3.17.651.4 – and as an interesting side note, this also achieves S-OFF for all versions of the HTC One with a separate download
You’ll need to be HTCDev unlocked, have Superuser up and running properly, busybox installed and functioning, and be on a stock kernel – so there are a few hoops to go through getting Rumrunner set up, and you’ll have to know the basics of rooting to get S-OFF.
Rumrunner comes in both Windows and Linux flavors, so if you want to create a Live CD for flashing, it’s a little more reliable than Windows when it comes down to it. If you’re going with Windows, you need to have working drivers and ADB functionality, which, depending on your flavor of Windows, might be painful to obtain. A live CD just works.
S-OFF allows you to flash unsigned code to restricted partitions. This means you can flash just radios, or have access to restricted partitions without having to jump through a series of hoops that HTC threw in the way in an attempt to make the phones as stable as possible, or as annoying to work on as possible depending on what you think of HTC.
There are currently two rumrunner downloads for the EVO 4G LTE, which it appears only works on the current EVO 4G LTE OTA software, but if you’re a One owner it looks like, from the number of files you can download, that all versions are covered.
Make sure to read all the Rumrunner instructions and devote some uninterrupted time, you could potentially mess up your phone if you decide to stop mid-execution to make a phone call, deal with a power outage, etc.
Rumrunner is free, but you can toss a donation to the developer behind it. If you’re on 3.17.651.4 and try this, let us know how it worked for you.