How do I change the batteries in my Hama Universal Remote Control?
Remove the battery compartment lid on the back of your remote control, insert two AAA type batteries with correct polarity (+ and -), then close the battery compartment. Ensure you clean the battery contacts and polar contacts before insertion (Page 5).
From the official Hama Hama Universal 8 IN 1 Remote Control User Manual And Code List manual, page 5
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