Here you have recovery files I got from chinese store AUTOTOP when asked from another account (on which they havent blocked me)Android 8.1 with "bmw os 1.09"BMW-8227L_demo.zipdrive.google.comThere are instructions how to proceed recovery but shortly: You have to format pendrive to fat32 and put folder CKXUPG on it. Like for example E:\CKXUPG\~files that are in CKXUPG~. Then You should plug that pendrive in one of USB cables from radio...Read more