So, today my phone was slightly lagging and it wouldn't lock. So i turned it off so i could restart it and it would be normal. After switching it off my phone just said fastboot with the little green thing. I don't know what fastboot is or how my phone came onto this. I have tried switching it on and off again but it won't come on, it just keeps coming back to the fastboot page. Please please help me, i don't want to lose my pictures on my phone
Thank you