In zuk z 1 project mode, breathing light is normal, but the call message breathing light is not bright.

Please turn on the LED, reset the color of notification, short message and incoming call, and try to see if it is normal. If not, please try to back up and restore the factory settings.

Backup data: enter System Tools/Security Center-Backup-New Backup, and select all data for backup, usually 3-5 minutes.

Restore factory settings: click on the phone-system settings-all settings-backup reset-restore factory settings-open the delete application, close the formatted SD card, and click the reset phone below.

Still no, please back up the data, enter the recovery mode, clear the cache, clear the user data, and clear all the data. When restoring the backup, do not restore the settings and third-party security software in the mobile phone. Try to use it normally.