Huawei removed bootloader code query after June 2018 security patches. Solution: Downgrade your phone to an older EMUI version via HiSuite proxy method, then run the reader.
fastboot oem get-build-number # Reader check fastboot oem get-product-model fastboot oem read boot boot_backup.img # This OEM command works on Kirin 950 fastboot reader huawei honor
A common issue for everyday users is that their phone automatically boots into Fastboot mode without them intending it to. Huawei removed bootloader code query after June 2018
The term is not an official Google or Huawei application. Instead, it is a colloquial term that refers to several tools and scripts designed to read, extract, or interpret information via Fastboot mode. or interpret information via Fastboot mode.