01-16-2014 07:44 PM
01-17-2014 06:04 AM
Welcome to the Community
I'd suggest to delete your gmail first. Go to System setting>Account and click Gmail account and delete it.
Restart your device. If still persist, reboot it with pull the battery out for couple minutes.
Good luck and let us know the result.
01-19-2014 08:18 AM
Thank you for your reply. As I said I cannot access accounts. When I go to System settings > Accounts I just get a blank screen for a while then it goes back to System settings.
01-22-2014 06:12 PM - edited 01-23-2014 12:13 AM
Sorry for late reply. Have you try to reboot your device? Try to reboot in this way, when the device is powered on and connected to the wall charger, pull out the battery and leave it for 20 minutes. Then insert it again. Reboot in this way will eliminate any program error.
But if the problem persist, you need to proceed to wipe your Z10. Go to Setting>Security and Privacy>Security Wipe. Leave your sim card and media card out before doing this wipe process.
Don't forget to backup your data first. Wipe will delete all your contacts, email accounts and downloaded apps.
When the wipe process has completed, use wifi connection to the initial setup with both sim card and sd card still out. After finish, turn it off and insert both media's to your device.
Good luck and inform us the result.