If you legitimately own the device and are locked out, here are lawful, safe alternatives you can try:
What is your P9 Lite running (Marshmallow 6.0 or Nougat 7.0)? huawei p9 lite frp bypass unlock tool
: Effective for removing FRP on the P9 Lite VNS-L31 while the device is in Fastboot mode . If you legitimately own the device and are
: Some methods involve using the emergency dialer or keyboard features to launch Google Maps, then using Maps to open a web browser. here are lawful