First you want to check the batteries to see if they are working properly. Next, check to see if the batteries are the correct size and that they are connected correctly. Make sure the batteries are touching the posts. Lastly, try removing the batteries and putting them back in.
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[https://www.ifixit.com/Wiki/Nikon_Coolpix_L810_Troubleshooting|Refer to troubleshooting page for more information.]
First you want to check the batteries to see if they are working properly. Next, check to see if the batteries are the correct size and that they are connected correctly. Make sure the batteries are touching the posts. Lastly, try removing the batteries and putting them back in.