卡在FRP LOCK 怎救？

HUAWEI MediaPad T2 7.0 Pro

開機卡第一個畫面，應該是手賤不小心把第三方TWRP 刪到系統。

現在

可以進入華為自帶的eRecovery ----->無法下載rom

可以進入華為自帶的三清 ------->不知道怎處理

可以進入 Huawei software installing ---->一直0%

可以進入 FASTBOOT&RESCE MODE ---->PHONE Unlocked FRP Lock


要使用FASTBOOT 下指令
C:\adb>C:\windows\system32\cmd.exe
Microsoft Windows [版本 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\adb>fastboot devices
786cc42e fastboot

C:\adb>fastboot oem get-bootinfo
...
(bootloader) *******************************************

(bootloader) Bootloader Lock State: UNLOCKED

(bootloader) Root State: ROOT

(bootloader) Bootloader WidevineKey: WidevineKey_VALID
(bootloader) System State: Bootloader in UNLOCKED state
(bootloader) Bootloader Version: 001.001.000

(bootloader) *******************************************

OKAY [ 0.031s]
finished. total time: 0.031s

C:\adb>fastboot.exe flash recovery RECOVERY.img
target reported max download size of 266338304 bytes
sending 'recovery' (64164 KB)...
OKAY [ 2.030s]
writing 'recovery'...
FAILED (remote: Necessary to unlock FRP! Navigate to Settings > Developer op)
finished. total time: 2.046s

C:\adb>


請問這要如何救？？感謝~