my cell phone stopped playing vids on memory hoặc even on the internet, it shows 'f' mark and i guess it means flash player needs update hoặc something and i dont know how :s

I'm not sure how your cell company works, but here I can press * and then the appropriate # and I am connected to technical support. bạn could try that hoặc maybe ask at where bạn bought the phone. Others may have better ideas. Good luck:)