Hi all. I have a problem. My 10 year old son bought one of those finger spinner things last week and it flew out of his hand and smashed the screen on my Note 3. I bought a replacement off ebay and performed the task myself. Simple enough. The problem is, now the phone turns itself off and back on again after 3 or 4 minutes of the screen being on. When the screen is locked it stays on all day long but as soon as I unlock it I know i only have a limited time until the inevitable happens. Has any of you experienced this before and, if so, what advice could you give. Any help would be greatly appreciated. Thanks in advance

See More: Galaxy Note III possible overheating