Hi mcdonalda21,
We are sorry to hear about this unpleasant experience.
For flashlight no longer works, we would suggest you check with your local service center about this
For Snapchat & Instagram no longer works, we're afraid we are not seeing the same situation on our device here. We would suggest you reinstall these apps and make sure you update to the latest versions.
If the problem still appears, please tell me how the problem appears.
Some games even FB crashes
> Could you try reinstalling or clearing cache& data of the apps that have these problems?
If the problem still appears, please tell me the app name and version.
Thank you.