VL53L0X Calibration Sketch Help

I purchased ten of these VL53L0X sensors boards off Aliexpress and so far i have tested four of them.
Of the four, three seem to be pretty accurate, but one is reporting 50mm to 100mm greater than the physical distance. So has anyone managed to calibrate a VL53L0X, if so a sketch post would be nice please. many thanks in advance imk