The firmware update brings the difference: Flash Rom Update on K3.3 E1.4 (comes free on the Medion site) with a new energy manager and Sirf III InstantFix II After I left plays the software GoPal 6 and lo and behold, there. is now as fast as my current P4245. It also supports TMC-Pro. The mistakes of the previous speaker based only on old firmware / software.