I had the same problem!! But i took outthe film it jad its was hard bc it was stuck but i pulled it out with some ✂️ the i changed the batteries and it still wouldn't work. I checked and checked and at the top of it , it had some film stuck so i pulled that out careful with some tweezers and tried to turned it on again and it worked the lights still kept flashing but i put an rmpty film in it and moved the settings and pressed the flash button and the numbers statted going down from 10-S it took a while but it worked!!!