k310i Phone Firmware Corrupts(Shows only white screen) for every 24 hours

One day, my firmware got corrupted. It shown me only white screen if i switch on the phone. So i installed the firmware (K310_R4EA031_FS_MEDITERR_RED49.fbn,K310_R4EA031_M AIN_GENERIC_DO_RED49.mbn). For every 24 hours, again my phone corrupts. It just hangs. And if i restart the phone(by removing and re inserting battery), again it shows only White screen. Then if i re install firmware again means, its working properly. But for another 24 hours only. For every 24 hours, my phone is corrupting. What might be the problem? is it any hardware problem? Please help me

check hardware. -- flash or cpu

What? Can you tell me in detail...