I had the same problem with my honor 6. I brought it for repair and it worked again when I had the battery replaced. But after few days, it went dead again, now no signs of charging, hard reset, same, it doesn't even show the logo when you try to reboot it, it's just dead... Now I hate this phone, just wanna throw it away. I even spent money trying to fix it, it just sucks. It got worst. I better up used the money in getting a new phone, this time not huawei or honor. Don't trust it anymore...