SNE-L21 10.0.0.ALL (C432) HUAWEI FRP REMOVE DOWNGRADE FLASH WITH MRT, SIGMA, EFTPRO, DC OR ANY [EMUI 10] [FRP, ID, BYPASS, dload] [DownloadGSM.com] [DG]
After flash do Hard Reset and unlock via Safe mode method. If needed Flash latest firmware to phone after bypass FRP. Some phones have already emmc problem so phone can be BRICKED.