To update or restore the Huawei P30 Lite (MAR-LX3A) firmware, you can use the official SD card/OTG method or a manual tool like HiSuite Proxy. Ensure your battery is at at least 30% and you have backed up all data , as these processes will erase the device. Method 1: SD Card/OTG Upgrade (Recommended)
Create a new folder named dload in the root directory of the SD card. Move File: Move the update.app file into that dload folder. Insert & Flash: Turn off the phone. Hold Volume Up + Volume Down + Power simultaneously. descargar firmware huawei p30 lite marlx3a one work
HuaweiStockROM : Offers official flash files for various Huawei models. To update or restore the Huawei P30 Lite