After days and hours of looking over the web i still cant find the solution why my R4 ULTRA. Il tell explain step by step what i do from once i had the R4. 1. I Downloaded the latest filmware for R4 ultra ( found here :http://www.r4ultra.com/) 2. I installed the ENG kernel , saved the zip file on my destkop and then i extracted it on my cartridge. 3. Then i installed some roms , unzipped em also and coppied those too in my cartridge 4. I check if the games now work - Conclusion - They do ! 5. Now i wanne add cheats . Ive noticed that the "cheats (Y)" Button already is there ; but when i klicked it , nothing happend afcourse. 6. Now i wanne make a cheatdatabase for pokemon platinum UK ; or just download rayder's massive cheatdatabase. 7; i download the cheat.dat file and then extract it to the folder _system_ in my cartridge. 8. Now it should suppose to be working so i pull out my cartridge ; put in the micro chip in my r4 again , the R4 loads , i search for platinum and when i then press (y) it shows No cheats found or just does nothing sometthimes . What am i doing wrong that this just won't work ! Please help.