My Nikon Coolpix L810 won’t turn on. I took the lens cap off and pressed the on button. The lens came out and the on button lit up for 5s, but the screen never came on. The lens is stuck out. I’ve tried switching batteries- I have a couple sets of really nice rechargeable ones and I even tried new disposable batteries to no avail. Every time I try to turn on the camera, the on button lights up for 5s and nothing else happens.
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https://www.ifixit.com/Wiki/Nikon_C…
The suggestion re’ battery contacts is seriously worth checking. It’s often missed that one or more of the contacts (under tension) aren’t making it…; have been too compressed, or bent out of alignment.
And this post discusses the problem and offers a link to Nikon download to fix it…?
http://tinyurl.com/png4tzb
Also scroll down to see the other posts there; all relating to the same problem…