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

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