Huawei P Smart 2019 Potter-L21-BD Stock Firmware (Flash File) The Flash File will help you Upgrade, Downgrade, or re-install the Stock Firmware (OS) on your Mobile Device. In addition, the Flash File (ROM) also enables you to repair the Mobile device if facing any Software Issue, Bootloop Issue, IMEI Issue, or Dead Issue. File Name: Huawei_P_Smart_2019_Potter-L21-BD_1.0.0.35_Board_Software_General_9.0.0_R3 EMUI_9.0_V100R002_05022NHR_HMT.zip File Size: 1 GB Flash Tool: Huawei Multi Flash Tool How to Flash (install): Follow Tutorial Mirror 1 (Free)Mirror 2 (Paid)