What is S-OFF?
After doing your sound S-OFF, you do ordered follow functions on works settings
- sim hair
- hboot hair ( this is the bootloader lock, you module be healthy winkle cooked rom after this)
- cid hair (region hair so you can't winkle it with other roms, unbrand it, or downgrade it)
- individual hair (will be ordered to works default)
- ornament hair (will be ordered to works default)
- sound usage counter (helps you renew the phone)
Temproot and Permaroot
- What's the difference?
First, let me vindicate stem access. Root access, superuser or su (all the same thing) is essentially an admin statement for Linux. It gives us authorisation to to admittance commands that ordinarily couldn't be accessed, and to indite aggregation to partitions that ordinarily couldn't be cursive to. On senior devices (such as the Hero), once we had stem we could indite to the /system and /recovery partitions, and winkle bespoken ROMs. In the case of the IS (and every HTC figure since the desire), this isn't true. Getting stem admittance is quite unimportant and no where nearby as useful, because the interior winkle module (NAND or eMMC) is locked downbound and it effectuation we everything we 'write' to the grouping (or some other protected partition) is forfeited on revive because it is a non imperishable change. In short, this stops us from experience bespoken ROMs and recovery. This is a difficulty for some devices that are shipped with the Security alarum on (S-ON). To get Permaroot, and the knowledge to winkle bespoken ROMs, we requirement S-OFF.
So what's this S-OFF then?
Making the sound S-OFF with XTC clip, effectuation also that you reset the simlock, userlock and CID to works land !!! Mean, your sound is 100% UNLOCKED
Since the Desire, HTC hit been securing their phones better than before by locking the interior winkle module (NAND or eMMC) to stop it existence cursive to, unless the enter existence flashed is signed by a private key exclusive famous to HTC. This is dominated by a alarum (@secuflag) and is identified as the figure existence S-ON. Telling the HBoot the figure is Security Off (S-OFF) stops this analyse for the key, and allows us to indite anything to some partition, which is what we are aiming for.
There are actually digit levels of S-OFF. The Bootloader (HBoot) and the Radio. Getting S-Off on the HBoot gives us everything we need, but doesn't actually invoke soured the @secuflag which is ordered in the radio. What it is possible to do is to winkle a HBoot that believes the Radio is ordered to S-OFF, as the HBoot is responsible for environment that flag. Once the HBoot on the sound is S-OFF, we crapper indite to every the partitions and essentially do some we want, but it is possible to go one step further. Flashing a broadcasting that is S-OFF and actually environment the @secuflag soured gives 100% amount admittance to every part of the sound and it's software, as it becomes network unlocked allowing to you to ingest some SIM and also allows you to winkle a storage from some traveler (known as Super CID). It also makes it nigh on impossible to permanently lax stem no concern what you flash. Once you hit broadcasting S-OFF, it makes it much easier to winkle newborn HBoots and ROMs modify if you winkle something that is locked downbound tight.
Setting the Radio to S-Off is not necessary, and gaining S-OFF on the HBoot is more than most grouping module ever need. Radio S-Off is meet the terminal step of the puzzle, but it is worth noting the exclusive points you crapper permanently brick your sound is experience a broadcasting or a HBoot, if either of these go criminal you module modify up with a shiny expensive paper coefficient so there is risk involved.
What most this XTC Clip, crapper that help?
The XTC instance is a element figure that crapper unlock S-OFF HTC phones, disregarding of the software.
S-OFF created by XTC Clip is temporary or permanent?
You crapper winkle your sound as many nowadays you want, your HTC module remain S-OFF forever, it is a imperishable S-OFF !!!
What most grouping who are effort devices shipped with S-OFF?
There are reports that a aggregation of devices reaching out of China and Bharat are shipping with the @secuflag ordered off. These are serendipitous people, and hit the knowledge to indite to the winkle memory, but it can't support those of us who are S-ON. It is also worth noting that because most devices are S-ON, no one has cursive some ROMs or kernels for the figure so they module belike hit to wait until we get a artefact of motion our devices to S-OFF until anyone creates some code for it.
++++++++++++++++Glossary+++++++++++++++++
Bootloader a.k.a HBoot
- This is the example of code that runs before anything added on the phone. It essentially packages it every up, tells what to run in what visit e.t.c Every machine figure has a bootloader in some modify or another, be it an Android Phone, iPhone, Windows PC, iMac e.t.c. The HBoot is reachable by change your sound off, then holding downbound volume downbound as you invoke it backwards on. The first line of the HBoot module tell you if you are S-OFF or S-ON.
Recovery
- The feat is the example of code that allows us to indite files to partitions while they aren't existence used. It is the vena to earmark us to winkle bespoken ROM's and kernels. There are bespoken recoveries with more options than the have much as ClockworkMod.
Superuser a.k.a su or Root
- This is a individual that is inform on every linux distros that allows higher permissions than accepted users hit admittance to. Certain apps requirement superuser permissions to function, much as Titanium Backup.
parts of this listing are "taken" from l0st.prophet @ www.xda-developers.com, 10x
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