INFINITY BEST DONGLE - EASY SERVICE TOOL FOR NOKIA (X, X+, XL LUMIA 735) UNLOCK Description: BEST ( BB5 Easy Service Tool ) by Infinity Team is a new flash and repair tool for Nokia mobile phones. It might be useful when your customer asks to save data (phonebook entries, gallery, calendar, etc) from dead phone before reflash or repair. Technician can use BEST dongle to make backup of useful data and flash the phone without any problems as well as forensic tool to restore phonebook and image gallery data. BEST supports dead USB flashing, normal USB (alive) flashing, BB5 fast flashing, custom flashing, Dead-to-Test operation, read RPL via USB, user data extraction, unlocking and more !!