| Issue | Solution | |-------|----------| | | Check regional ZKTeco mirror sites or request via support ticket. | | Installation fails (missing DLLs) | Install Microsoft Visual C++ Redistributable (2015-2022) and .NET Framework 4.7.2+. | | Software says “Expired” | Demo period is 30 days. Apply official license. | | Cannot detect device | Disable Windows firewall temporarily or add TCP ports 4370, 5005, 5006. | | Database connection error | Re-run database configuration from Start Menu > ZKTeco BioTime > DB Manager . |
SQL services not running. Fix: Open Services.msc , find SQL Server (BIOTIME) , set startup to Automatic, and start the service. zkteco biotime 85 software download new
If you see 8.5.0 or 8.4.x, you have an older release. Contact your supplier for the upgrade patch. | Issue | Solution | |-------|----------| | |