Known working AROMA binaries.
These binaries work on G2 (and likely many other devices).Download More on XDA
Sometimes the g2 has problems with AROMA and the graphics become distorted when AROMA launches. Swapping the binaries in your zip file to a newer version is often sufficient to fix the problem. Known working binaries are contained within this download.
If your chosen zip file ["your zip"] has AROMA and it does not work, you need to replace a couple of binary files in your zip.
You should now be able to flash ["your zip"].