Power off your phone. Hold the Volume Down button and connect the device to your PC via USB cable. Release the button when the fastboot screen appears.
Unzip the downloaded firmware file on your computer. Huawei P30 Lite Mar-lx3a Firmware Download
The MAR-LX3A skipped EMUI 11 and jumped directly from EMUI 10.0 to EMUI 12 . How to Download & Install Power off your phone
Depending on your preferred method, you will need the Huawei Smartphone Multi-Flash Tool or an micro-SD card / USB OTG drive. Unzip the downloaded firmware file on your computer
| | Android / EMUI | File Name | File Size | Source | | :--- | :--- | :--- | :--- | :--- | | 10.0.0.248 (C69E7R1P3) | Android 10 / EMUI 10.0 | Huawei_P30_Lite_MAR-LX3A_10.0.0.248_C69E7R1P3_Firmware_EMUI10.0.0_05015TFC_Dload.zip | ~4 GB | Multiple sources | | 10.0.0.248 (C69E7_HMT) | Android 10 / EMUI 10.0 | Huawei_P30_Lite_MAR-LX3A_10.0.0.248_C69E7_HMT.zip | ~4 GB | firmwarefile.com | | 9.1.0.241 (C792E9R1P5) | Android 9.0 (Pie) / EMUI 9.1 | Huawei_P30_Lite_MAR-LX3A_9.1.0.241_C792E9R1P5_Dload.zip | ~3.66 GB | Multiple sources | | 12.0.0.263 (LAMC25E2R1P1) | EMUI 12 | N/A (Backup file) | N/A | needrom.com (Claro Variant) |
Note that eRecovery relies on Huawei’s servers and may not always offer firmware for older or region‑specific variants like the MAR-LX3A.
: Save all photos, contacts, and personal data. Flashing erases internal storage.