Insert the prepared microSD card into the card reader slot (accessible behind the front cover).
| Problem | Likely Cause | Solution | |--------|-------------|----------| | “Update file not found” | USB not FAT32 or wrong port | Reformat USB, use USB1/GPS port. | | Update freezes at 40% | Corrupted file or power drop | Re-download file, retry with engine running. | | Touchscreen stops working after update | Wrong touch driver in firmware | Revert to previous MCU; contact support for touch config file. | | No sound after update | MCU mismatch | Perform MCU update again; reset factory audio settings. | | Bluetooth name changes | Factory reset required | Go to Factory settings (code 8888 ), restore BT module defaults. | Blaupunkt Bp 530 Software Update
Safe travels!