WARNING: For devs and experts ONLY! This is not fully functional and it is not well tested yet! I do not take responsibility for any damage you cause your player! This is an unofficial port of CM9 alpha to the Galaxy Player 4.0 (USA). Preparation MAKE A FULL BACKUP! Make sure you can recover using heimdall or odin. Backup /system using "dd" use with odin/heimdall, just in case: dd if=/dev/block/stl9 of=/mnt/sdcard/system.img bs=512 Backup your apps if you care about them Installation Download the ROM for your device Boot into recovery and install the ROM Do a full wipe. Wipe data, cache, dalvik, everything Reboot, and you should have cm9! Issues? Post any other issue here and I will respond when I get a chance. Please do NOT send me PM's. Download nightly_cm9_player.zip Note: gapps is not currently included in the ROM. THIS IS STILL IN TESTING. PLEASE LEAVE A COMMENT TELLING ME HOW WELL IT WORKED.