Recently I cleared the caches of apps that I use. After I cleared them my phone started to overheat and freeze so I took the battery out to cool down. When I reinserted the battery my phone came on and small words appeared saying "fast boot mode" so I took the battery out again. When I put the battery back in and turned it on nothing happened. The screen stayed black and the lg sign doesn't show. Is there any way I can fix this problem?