Hi not sure if it would help, try taking the batteries out from the camera and leave it out of camera for a few hrs (2 maybe?). While waiting, try to power on the camera the normal way to discharge any possible remaining power. Then, reinsert the batteries back into the camera and power on to see if it helps.
Some machines somehow needs a full discharge to 'help erase' issues it has and encountered and to restart afresh.. Not sure the terms are correct but thts how i learnt over the years.
Hope the above helps! Good Luck! :)