Q: iPhone 6 stuck in DFU mode

I was trying to play music on my iPhone 6 and the phone crashed and turned off after not loading for 20+ minutes. When I got home I plugged it into my MacBook Pro. The phone showed up and was recognized as one of the devices plugged into the computer but was stuck in DFU mode. After trying every method to turn it back on I realized it was no longer recognized on my computer and appears to be completely dead. If I send it into Apple can they fix it and get everything saved on my phone back?