Few months ago i bought this phone in latinamerica... I have been playing with it for a while and i discover some tricks
This method is only for L variants and is safe and easy to do. Im now uploading the firmware to increase ram
Glad i can help!.
To have 624mb of ram on Galaxy Ace II 8160L download this http://terafile.co/07825902af95/THL-...0604102339.zip
Extract file and flash on PDA Via ODIN.
As i Said, Pretty Easy..
Screen Shots on next post.