Do not flash blindly. First verify the file provenance and checksums, then analyze offline using binwalk/unsquashfs and, if necessary, emulate with QEMU before deploying to production hardware.
For vehicles without 4G/LTE connectivity, this update must be installed manually via USB: Format USB : Use a USB flash drive formatted to File Placement : Place the upd09051.bin upd09051.bin
: Resolving rare bugs such as spontaneous iDrive restarts or "black screens" during incoming calls. Do not flash blindly