So I wanted to take out an old sd card and put in a new one so I turned off my phone. I replaced the old SD card and when I pressed the power button it didn't turn back on. That's all it does... doesn't charge or turn on, no Red LED. I have tried taking out and putting in the battery, holding the power button (with volume button), but nothing works. When I connect it to my laptop and hold the power button it does the "connected" sound but when I let go it disconnects and the phone still doesn't even power up. Any ideas?