Unfortunately, the process android.process.acore has stopped.

Error on Samsung Tab 3


Unfortunately, the process android.process.acore has stopped.

Resoultion
1. In my case, i had deleted the Samsung account and after that i received the "Unfortunately, the process android.process.acore has stopped" error.

Signing back on the Samsung account resolves the error

2. Goto Application Manager and disable the contact Store or Contact and then Re-enable it, this i found by Opening Contacts Application and it crashes as soon as I clicked on Logs

Phone Testing for Andriod Phone

Run this command to get the phone information

*#*#4636#*#* 

Any changes with settings could mess up with phone.