EMUI Huawei software installing DO NOT unplug usb or press any key.

[AC Question]

i have a HUAWEI GR5, KIIL23. Idk whats really happend, just appear thats message.. was accidentally. Please, help...

 

[B. Diddy]

Welcome to Android Central! Did this happen after you tried to power it on? It sounds similar to Samsung's Download Mode (aka Odin Mode), which is used to load a firmware file for a manual system update.