Kingstar A20 Pattern Lock and Hang On Solution 100 Tested after a long hard work i feel happy now. all is well here the process 1.download this firmware Micromax A51same as kingstar a20_R10_MMX_DS_NSL_0422 OR KINGSTAR-A20-R10_MMX_DS_NSL_0318.rar - 122.52 MB this is found from Shohag Gsm then 2.put the file in c driver in a folder by create a20file 3.open run and write cmd enter 4.cd enter 5.cd a20file enter 6.>dfu enter 7.attach phone with battery 8.w8 and see the log and final result after that all lock gone but touch not work so download another firmware of micromax A51(both are same as kingstar a20) A51_R10_MMX_DS_NSL_0422 and as like follow the way from 1 to 8 now all is working http://rayerbazarmobile.blogspot.com/ download file now