Well recently I was trying to root my Mytouch 4g Slide and ACCORDING to this thread:
All I had to do was flash the custom ROM as it would have the root already in there.
-6. ROOT YOUR DEVICE.-
Now that you have a custom recovery, you can flash custom ROMs. These custom ROMs are already rooted with Superuser and binary files.
NOTE: If you are S-ON, installing a custom ICS ROM will require an extra step in fastboot. You will have to extract the “boot.img” from the ROM and flash it with fastboot after installing the ROM in CWM recovery. More information from Limewirelord.
HOWEVER, if you want to root the STOCK ROM and/or continue to step 7 to achieve JuopunutBear S-OFF, you’ll have to root the device yourself. This is very simple. Download Superuser ZIP from androidsu.com/superuser. I can only recommend version 3.0.7 efgh because that is the only one I have tested, but newer versions may work.
Place the “Superuser-3.0.7-efgh-signed” on the ROOT of your SD card. Go to CWM Recovery and use “install zip from sdcard” to flash the Superuser zip. If installation aborts or fails the first time, try to flash the zip again until installation is complete. Reboot your phone and check in your apps to see if Superuser app is there. If so, congratulations, you have successfully rooted your stock MT4GS!
I was using this kids download tools to get the files I wanted. So I extracted the boot.img and used this tutorial to flash it for me.
THAN I ran a back up in clockwork. I haven't put the files on my SD card yet, I was just jumping ahead and was not prepared.
So I tried to go back to my phones regular state, but it is stuck on the "MyTouch 4G" splash pages, doesn't move what so ever.
I than grew worried about the phone, and thought I just bricked it or something. I am still able to get into Clockwork and do stuff in it. I tried to do a restore from my backup, didnt work. Tried wiping everything then do the backup, didnt work.
So I said, well maybe its because its a custom boot.img or something and it doesnt want to work? Luckily I had a old Mytouch 3G laying around so I could put stuff on my SD card.
So I put everything the kid provided from his mediafire folder and placed it into the root of my SD card. Switched over to the 4G and tried to install the packages.
The first was the ROM. At first it didnt work, it gave me an error:
assert failed: getprop("ro.product.device") == "glacier" || getprop("ro.build.product") == "glacier"
And a few posts down, a person writes this:
Step 1.Open the ROM.zip with winrar
Step 2.Found \META-INF\com\google\android\updater-script ,use Notepad open
Step 3.delete assert(getprop("ro.product.device") == "p880" ||
getprop("ro.build.product") == "p880");
I followed the rest of the steps until it got to the last package. When installing "grapefruit" my phones display shut off, and then when it went back on, I was back at the beginning of Clockwork. So I went and tried to install it again, and this time it gives me a (Status 0) error, with no other information.
I assumed that it was already installed or something, and it was just saying it is already installed.
I tried to reboot back to normal and I am still stuck where it says "Mytouch 4g"
So now I am on this thread: http://forum.xda-developers.com/show....php?t=1844910
And there are the download links, I click on both of them to get this:
And now I am here. Cant find the download for this dang it file.
Anything helpful will be greatly appreciated.
TL;DR: Im stuck at the "MyTouch 4g" splash page. I can get into CWM mod fine. It is S-ON. Halp.