On the main circuit board (the green PCB), look for a set of two small gold pins labeled J3 , RESET , or FACT . They are usually located near the CPU (a large square chip) or next to the backup battery (a coin cell). In many UA300 revisions, these pins are just behind the Ethernet port.
Use a Philips screwdriver to remove the 4 screws on the back plate of the UA300. Gently separate the front panel (with the screen) from the back panel (with the mounting holes). Do not yank – there is a ribbon cable connecting the two halves. zkteco ua300 factory reset
ZKTeco is a global leader in biometric security, and their UA300 model is a staple for small to medium-sized businesses. Combining fingerprint recognition, RFID card reading, and a keypad, it is a robust device for access control and time attendance. On the main circuit board (the green PCB),
For more guides on ZKTeco devices (TFT Series, FaceDepot, SpeedFace), check out our biometric archive. Disclaimer: This guide is for informational purposes only. Modifying your device may void the manufacturer’s warranty. The author is not responsible for data loss or damage to your hardware. Always consult with a certified security technician if unsure. Use a Philips screwdriver to remove the 4
The solution is a . But beware: unlike resetting a smartphone, performing a ZKTeco UA300 factory reset without proper knowledge can lock you out permanently or wipe critical user data.
If you have attempted all three methods and the device remains locked or unbootable, the internal NAND flash may have failed. In that case, contact ZKTeco’s regional support for a mainboard replacement.