Hi! My phone is Samsung Galaxy ACE 5830. Gingerbread. Rooted phone. The problem happens after every reboot-- media scanner completes 100% then mobile gets crash and media scanner runs again. This happens continuously almost 10-15 times till that time my phone is useless. Then it becomes normal and all my files and apps are visible. The phone works with other media card but now I have lot of data and apps installed in present SD card and wants to continue. I checked SD card with windows check disk and every thing is fine. I also put in almost all directories .nomedia to prevent scanning except DCIM and .android_secure folders. Please suggest the solution. Thanks in advance..