Dependiendo del estado de tu teléfono, usarás un método u otro.
The "Test Upd" or "Test Point" method is used for deep system modifications, such as bypassing FRP (Factory Reset Protection), removing Huawei IDs, or fixing devices that won't boot into standard modes. : Carefully remove the back panel of the phone.
Cuando combinas para el Huawei P30 Lite MARLX3A , estás ante una actualización de firmware que probablemente fue filtrada desde los servidores de desarrollo de Huawei o extraída de un dispositivo de prueba. Esto es común en foros de desarrolladores (XDA, 4pda, etc.) y sitios de servicios técnicos. descargar firmware huawei p30 lite marlx3a test upd
: A safer alternative involves entering recovery mode (volume up + power while plugged into a computer) and selecting "Download latest version and recovery" to pull the firmware directly via Wi-Fi. The "Test Point" Chapter
For "test" firmware or advanced recovery (e.g., after a failed update), technicians often use specific software: SigmaKey / MRT Key Dependiendo del estado de tu teléfono, usarás un
Before attempting a manual firmware flash, try the official update channels which are safer and preserve your data: On-Device Update : Navigate to Settings > System & updates > Software update and select Check for updates HUAWEI HiSuite : Connect your phone to a PC and use the official application to check for system recoveries or updates. HUAWEI Global Manual Firmware Flashing (For Advanced Users)
⚠️ Do not confuse it with MAR-LX1A (Europe/Asia) or MAR-LX2A (Middle East/Africa). Using the wrong firmware can brick your device. Cuando combinas para el Huawei P30 Lite MARLX3A
Huawei P30 Lite Upgrade Guide | PDF | Zip (File Format) - Scribd