We need 3 apps to root U8836D:
You can get it from xda-developers:
2.Superuser.apk and SuperSu.apk
Make sure drivers been installed before all the steps.
1.Decompress Root_with_Restore_by_Bin4ry_v2_win-linux.rar Copy the document into C:/.
Such as: C:\Root_with_Restore_by_Bin4ry_v2_win-linux
2.Open your U8836D,Select USB debugging.
3.Connect U8836D with PC
4.Open Document"Root_with_Restore_by Bin4ry" and click "Runme"
5.Select "3"--others and press enter button or any one
6.Display like this
7.Look at your phone, Just Select" Restore my data". Dont care of the password.
Repeat all the steps if there is no change after clicked"Restore my data"
8.Then phone will restart, If not, please repeat all the steps again.
You can see, there is the icon "Superuser" in your phone now.
Last step, install SuperSU.apk and Root explorer.apk
တခ်ိဳ႕ ဖုန္းေတြ ေတာ႔ မရပါ ဘူး ။