<Collaboration><Dev><Ideas> HTC Evo 2.3.3 Gingerbread Root Collaboration.
FASTBOOT
* I love the color orange.
HTC Evo 2.3.3 Gingerbread Root Collaboration
The Lowdown on Everything
FASTBOOT
PC36IMGHTC's RUU releases basically run the adb reboot bootloader code, reconnect to the phone, verify the version and run a series of fastboot commands to install the contents of the PC36IMG (detailed below). In the same way it may be possible to run fastboot commands from command prompt with the SDK installed if you can time it just right in the flashing process, or not. The bootloader can be quite picky when it comes to letting anyone or anything flash anything lower than the version on the phone, or unsigned.
RECOVERYThe PC36IMG is what is flashed in the bootloader. The contents of the zip include the radio, system, and more. As long as S-ON is present the bootloader won't flash any PC36IMG that isn't signed by HTC themeselves, however with S-OFF you can flash custom PC36IMGs as well as downgrade, because the bootloader doesn't check the firmware version to see if it's newer or not. If someone was however to be a sneaky awesome ninja and steal HTC's secret sauce then we could simply sign any PC36IMG we wanted to and fake a newer version in the android info txt.
RUUFrom my understanding the stock recovery references alot with the bootloader to check for most of the same checks it looks for in the PC36IMG, but in the update.zip HTC includes for updates. The stock recovery won't flash anything but signed HTC update.zips either, which again you need the special sauce to sign. Custom recoveries like Amon RA or Clockwork remove the security and don't reference with the bootloader (since your phone has to be S-OFF anyways to flash a custom recovery.) A custom recovery is the key in flashing customs roms and kernels, if you can achieve it with the security on (S-ON) the you won't even have to worry about achieving S-OFF. However, that's near impossible due to the security in the bootloader HTC implements with updates. Which is why the bootloader has to be cracked to install anything.
APKSThe RUU is an official tool HTC puts out so people can reflash there phone with a stock firmware just like if it is brand new and your turning it on for the first time. The files included inside of the RUU frontend include the PC36IMG which is essentially what is flashed in the process, but in a fancy way I guess you could put it. The same security applies to the RUU, you can't downgrade versions without S-OFF because the bootloader still checks the version on the phone currently to see if it can flash the PC36IMG or not (when security is on [S-ON] )
I'm sure alot of you know of applications such as Visionary or Z4Root, they both use common exploits to root your phone in a simple application, first temp root then permanent root. They push the approiate resources, Superuser, su, busybox, set the permissions for everything to run, and clean up everything in the blink of an eye thanks to simple scripts. The same thing is still quite possible with any exploit, the exploit just has to be found in the software. You find the exploit you gain root. You have root you can do almost anything to your phone, but S-OFF still plays a role in everything with what you can and cannot flash. Sigh. I know right..
Our Mission
The whole purpose of this thread is to collaborate on possible ways to obtain S-OFF and/or root on 2.3.3, either update. We are community, thus we must act like one, and not bash each other for trying. If you have a truthful idea or any questions feel free to post them. You never know, you could very well help with rooting the latest update. This has gone on far to long it's been almost 2 months and no root. This is our time to free each other from the chains of security because we all like to be dangerous sometimes.
Last edited: