印度采购需求：数字柜锁、指纹抽屉锁、RFID储物柜锁、安全抽屉等。

I'm reaching out regarding an issue we're experiencing with a small round biometric drawer electronic fingerprint lock. The lock is currently not functioning as expected; when I attempt to use the biometric feature, it simply lights up in blue but fails to unlock. This has rendered the lock unusable, and I would appreciate any guidance or solutions you might have for troubleshooting this problem. Additionally, if there are known common issues associated with this type of lock or specific steps to reset or recalibrate it, that information would be greatly helpful. I've followed the standard procedures for touching the sensor and ensuring it's powered, but the issue persists. Looking forward to your prompt assistance in resolving this matter, as we need the lock to operate correctly for ongoing usage. Thank you!