đź“Ś : Use a clean USB stick that does not contain any other files. Format it to FAT32 before copying the update.
If it does not auto-detect, go to manually. Tap Yes or Confirm to start the process.
For 99% of Blaupunkt BP 330 users, the best “software update” is no update at all. Keep the earbuds clean, the case charged, and enjoy the audio as shipped. If you must check for an update, follow this guide strictly – and accept that the process may not succeed on first try.
Delete the old car pairing profile from your smartphone and delete your phone from the car's memory. Re-pair them from scratch to build a clean connection.