Huawei Mate 7 Bootloop

Hello, I tried upgrading my Mate 7 L09 to Marshmallow, however after I tried it, it failed and it's been in a bootloop since I did it. Unfortunaltely, The bootloader is locked, no computer will recognize it and it does not force-boots form my SD card to install the ROM again from it. Do you have any suggestions, I have tried all that comes to my mind with no success at all. Any help will be greatly appreciated