E91:01 is flashing on the screen
How to fix E91:01 flashing on the screen of the camera?
The Sony Cyber-shot DSC-HX80 is one of the world's smallest compact digital camera with a 30x zoom lens. It was released in 2016 by electronics company Sony.
Try factory resetting the device:
main menu -> Settings -> Initialise -> Factory Reset.
Otherwise I believe that issue is with either the flash or the battery. You can try turning off the camera, removing the battery, leaving the battery out for a few minutes, and then putting it back in and turning it on.
Report back if that works for you :)
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