: If you are also updating the management software (like Check Time), you must remember to "update database" under the maintenance menu to ensure your existing employee records and schedules remain intact. User Frustrations and "Gotchas"
Not all ZKTeco devices update the same way. Here is a quick reference: Zkteco Update Firmware
can sometimes facilitate the upgrade if the device is connected Update Methods 1. USB Flash Drive (Standalone Terminals) : If you are also updating the management