Several update patches explicitly address calibration issues, making the resistive touchscreen more accurate.
After a successful Blaupunkt San Diego 530 firmware update, you will notice: blaupunkt san diego 530 firmware update
However, understand what the firmware does not update: However, understand what the firmware does not update:
Note: The exact filenames and prompts vary by firmware package. The following is a generalized procedure assuming SD card update support. 6.3. Dealer/Service Update (if available)
6.1. SD Card Update (common)
6.2. USB Update
6.3. Dealer/Service Update (if available)