I have just bought an Acer Liquid E1, and was trying to root it. It runs Jb. The system itsself is next to stock for what I could see...
Now for the real problem. I have tried to flash multiple (can't give links to all of them because i just don't remember) Jb rooting zips, which didnt work at all.
Then I tried to push the root files (superuser, su, all that stuff) into their respective directories through ADB sideload, which can be entered through stock recovery.
That also didn't root my phone, but gave me the superuser and terminal apk's.
After a while I figured i'd probably needed to flash CWM first, so i picked a generic build of CWM in .img format.
So I flashed that one using fastboot, and now it's stuck at the kernel splash screen. After that it completely shuts off.
Acer hasn't released their version of JB as of yet, but they did release the source code for the Liquid E1's kernel.
Acer | Download
It can be found under the 'Documents' tab.
I am not a developer, although I am familiar with editing roms (used to do so on my old Neo v), but not at all with kernels.
Don't know if the source code is of any use, but if someone could help me that would be more than great!!
thx in advance,