Maintenance and Repair of the HP-01 Calculator Watch
Learn how to correctly replace the batteries of the HP01 wrist instrument and what to pay attention to.
How to open the case back without damaging it and which tools you need and which ones you’d better not use.
What kinds of batteries are used with the HP-01 LED watch and how are they installed correctly?
What to do if the HP-01 doesn’t work after replacing the batteries?
How can you shorten the bracelet of the HP-01 and how are extra links added?