


The RELIFE RL-071B Optical Fingerprint Calibrator V5.0 is a professional mobile phone repair tool designed for calibrating in-display (optical) fingerprint sensors. It is used after replacing a phone display or fingerprint module when the fingerprint sensor fails to recognize or register fingerprints correctly.
This precision calibration device restores accurate fingerprint recognition by recalibrating the optical fingerprint system, helping ensure fast, stable, and reliable performance on supported Android smartphones. It is an essential tool for professional mobile repair technicians and service centers.
| Brand | RELIFE |
| Model | RL-071B |
| Version | V5.0 |
| Type | Optical Fingerprint Calibration Tool |
| Application | In-Display Fingerprint Sensor Calibration |
| Usage | Calibration after Screen or Fingerprint Sensor Replacement |
| Compatible Brands | Xiaomi, OPPO, Vivo, Huawei, and Other Supported Android Devices |
| Weight | Approx. 150–300 g (Depending on Package) |
| Length | Approx. 10–15 cm |
| Width | Approx. 8–12 cm |
| Height | Approx. 2–5 cm |


