If a phone’s flash light doesn’t work, then it’s either an app is trying to make use of the flash on the background, the phone battery is low or the flash light device is damaged, here are the possible DIY solutions.
1- firstly, try closing all the running apps on the device, or perform a reboot, if the problem is due to in-background app usage, then this will fix the problem
2- If the DIY solution above didn’t solve the problem, then it’s likely that your phone’s flash has some technical issues which needs to be fixed, at this point you will need the service of an experienced phone repair engineer, you can click here to request for our phone repair service, because at Chrisrepair.com we offer swift and hassle free phone repair services.