So I lost my anker keyboard 6 months ago and just found it in perfect condition in my garage, I changed the batteries with batteries I just bought and got out of the package for it to turn on then off? Is there a reason why? I see alot about pairing issues but only one about this same problem so I tried the commenters solution for them to not work either.
Have you tried completing a fresh pairing of the keyboard? If the keyboard is not paired to a device it will power off.
Tryna different set of batteries as well