Issue

[Sujith_143]

I am using Sony Xperia mdual in that flash light was not working suddenly what is the code to check out and clear the problem

[SophiaW]

Hi Sujith_143, welcome to the community!

Have you cleared the data for the flashlight app you are using? You just go into Settings > Apps > All > scroll down to the app & tap it > tap Clear data. 

[Phy]

You can try repairing it with Sony PC Companion.

Sony PC Companion.
http://support.sonymobile.com/us/tools/pc-companion/

[Phy]

If that doesn't work Contact Sony Xperia Support.
http://support.sonymobile.com/global-en/contactUs/