Looks like reverse engeneering on kernel is SO diffucult and I wonder wy haier (or acer) doesn't release the source code.
Anyhow, I'm on elbuit v5.5 , run fine, even i MUST use link2sd, I have a lot of apps...
And its looks like any 4.1 rom can do wifi tethering.
No matter what settinsg or encryption, 3rd party tethering tools makes phone reboot!!!
Edit: bluetooth tethering neither...
Battery increased a lot on elbuit to.
Actually, I love this phone, but with no edited kernel we can use only a little of his power!
Sent from my Nexus 7 using xda premium