like 2 previous updates to that older superb. So now this MTS2_EU_SK_ZRPO369T transfer to sd card this MTS2_EU_SK_ZRPO480T then run the update via sd card. infotiment unit is in developer mode green menu etc are visible All check your e-mails. @VLADO1106 in AMundsen maps are stored on SD, there are NOT loaded into any internal memory, so just inserting SD with unpacked maps should be enough. @WesternWalrus @Mriggs yes, it's possible to upgrade ANY MIB STD2 ZR unit, both with and without NAV, running at least 02xx software, to 0480. It's NOT possible to upgrade units with 01xx firmware to 0480 (or any other than 01xx). The key is MIB STD2 TOOLBOX. Units with OEM sat nav (Amundsen) can be done from SD. Units without OEM SAT NAV (Bolero) must be soldered (not possible to make it from SD). In both Amundsen and Bolero it's required to turn developer mode ON with some diagnostics / programming tools like VCDS, OBD Eleven, Vag Can Pro, ODIS, VC Tool.