ZTE phone shuts off randomly
I am having the same issue too. My ZTE phone shuts down randomly when not in use. I thought it could be due to the mail sync and battery usage, so I turned off the sync. But, I still see the issue.
I even increased the sleep time to 30 mins. Now, it shuts down after a longer time(after around 2 hrs).
Has anybody found the solution? I will try the suggestion of removing the SD card. Hope it works.