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PORSCHE Diagnostic Software for X-431 Series V20.54

Compared with the previous version: 
updates as following: 
1. The diagnosis function has been optimized for the sel''||''&''||''#101;ctor lever, Steering wheel electronics, and Transmission control systems of the car model 911_991. 
2. The diagnosis function has been optimized for the Electric power steering, High-voltage battery, High-voltage power electronics, and Park assist systems of the car model Cayenne (from 2011). 
3. The diagnosis function has been optimized for the Electric power steering, Front-end electronics, Instrument cluster, Park assist, Parking brake, PSM, Rear lid, and Transmission control systems of the car model panamera. 
4. The service resetting function has been optimized for the Cayenne (from 2011), 911_991, and Boxter (981) car models.