Yes I had quite a conversation with Taztosa who has a Seat Mib2 High like you on the Briskoda siteHi,
I have tried to perform the update for my unit (MIB2 High); I'm currently on 430, but the update to 450 did not work.
I have tried to add new FEC via addfec.txt in M.I.B but it won't apply to the unit.
Is there anything I might be missing or doing incorrectly? I'm currently on firmware: MHI2_ER_SEG1L_P4709_1 _1447
Columbus Map Update 2026-2027 (MIB2 HIGH)
cross compatible on:Skoda Columbus (Mib2H),Seat Navi Plus (Mib2H),VW Discover Pro (Mib2H),Audi MMI Navigation Plus (Mib2H)Porsche PCM4.0 (Mib2H)started by @Mohrhuhn https://www.briskoda.net/forums/topic/535959-columbus-map-update-2026-mib2-high/#findComment-5995662tested by @langers2k & @Tell...
If you look at their firmware release I believe it's the same as yours. They did a bit of footwork renaming a directory if you look at their last post after I clarified what they had done. The issue I think is that the Mr Bonk stuff is designed to work with specific software releases. They had installed 1447 AIO which it was not seeing. But that renaming or whatever they said which I enquired about did the trick. You do after doing the addFeC need to reboot the unit via the long hold on, the on/off button which I thought they were stuck on but my interpretation was the Github Mr Bonk stuff was not interfacing with 1447 AIO, if it was just 1447 they would have been OK.
Its one of those processes you only do once and forget about. Also think the program had been redesigned from when I used it 5 years ago. So they were on MHI2_ER_SEG11_P4709 1447 then had to do that:
Columbus Map Update 2026-2027 (MIB2 HIGH)
cross compatible on:Skoda Columbus (Mib2H),Seat Navi Plus (Mib2H),VW Discover Pro (Mib2H),Audi MMI Navigation Plus (Mib2H)Porsche PCM4.0 (Mib2H)started by @Mohrhuhn https://www.briskoda.net/forums/topic/535959-columbus-map-update-2026-mib2-high/#findComment-5995662tested by @langers2k & @Tell...
So yes...