Hey guys, I have great news. YOU DO NOT HAVE TO PAY FOR BOOTLOADER UNLOCK FOR THIS DEVICE! I have just tested and can confirm that the Slock method for the Honor P9 lite DOES work on the Honor 6x. I have a L21 model running emui 5.0.3 and was able to unlock my bootloader for free using the method provided here
https://forum.xda-developers.com/9-lite/how-to/unlock-bootloader-code-t3859685
Happy unlocking!
I will be compiling PBRP and other goodies for this device. You guys just picked up another developer
You must be running software released AFTER June of 2018, my Honor 6X met this prerequisite and yours may too.