Hi Forum Turkey, from Istanbul to agree. Issue is not listed below, I installed the new ROM tablets of Chinese goods. Deleted from the original rom. My goal was to make a slow-speed running on the system. However, I installed the full rom 23 units. ROM system has opened a few, but not exact. Sound does not work. The touchpad does not work. Please please help me find my ROM. I do not know English I write with the help of Google Translate. Thank you. if I remember correctly MODEL WM70001C MW8650 800 MHZ 256 MB 2 GB.