PFU Grading Purpose: PFU Grading is used to grade devices that are unable to power on . Flow: Transfer In → PFU Grading → Transfer Out Steps: Transfer In the IMEI. Go to PFU Grading . Select the station . Scan the IMEI of the device. Select the grade for the device. PFU grading is now completed . Perform Transfer Out to make the device available for orders.