A common issue with MT6739 devices after a failed firmware flash is the nulling of IMEI numbers. This occurs when the NVRAM partition is accidentally wiped. Repair requires writing the original NVRAM backup or patching the MP0B_001 file located in the modem storage.
| Feature | Specification | | :--- | :--- | | CPU | Quad-core ARM Cortex-A53 @ up to 1.5 GHz | | GPU | IMG PowerVR GE8100 @ 570 MHz | | Modem | Cat-4 LTE (150Mbps DL / 50Mbps UL), Dual 4G VoLTE | | Memory Support | LPDDR2/LPDDR3 (up to 3GB), eMMC 5.1 | | Display | 1440x720 (HD+) @ 60fps | | Connectivity | Wi-Fi 4 (b/g/n), BT 4.2, FM, GPS/Glonass/Beidou |
MT6739 firmware is highly modular, sensitive to partition integrity, and dependent on NVRAM for radio functionality. While the SoC is underpowered by modern standards, proper firmware management can keep devices functional for basic telephony, navigation, or embedded roles. Always back up the NVRAM and SECRO partitions before any flashing operation. mt6739 firmware
Warning: Flashing wrong preloader or corrupting NVRAM can permanently disable 4G/IMEI. Use scatter files matching your exact device model and region.
Title: Technical Overview of the MediaTek MT6739 Firmware Architecture and Modding Ecosystem A common issue with MT6739 devices after a
Abstract This paper provides an in-depth technical analysis of the firmware structure utilized by the MediaTek MT6739 system-on-chip (SoC). As a prevalent entry-level 64-bit quad-core processor, the MT6739 powers a significant portion of the global budget smartphone market. This document outlines the hardware abstraction layers, the Android boot sequence, the partition layout, and the tools required for firmware modification and repair. It aims to serve as a reference for embedded systems developers, aftermarket firmware maintainers, and hardware repair technicians.
Meta Description: Everything you need to know about MT6739 firmware. Learn how to find stock ROM, flash it using SP Flash Tool, unbrick your device, and perform system updates on this popular 4G entry-level chipset. Warning : Flashing wrong preloader or corrupting NVRAM
| Issue | Symptom | Fix |
| :--- | :--- | :--- |
| DRAM init failure | Device stuck at preloader, no USB detection | Check memory_para in cust file; reflash preloader |
| Modem panic | “No service” or baseband unknown | Restore NVRAM from backup; rewrite IMEI using SN Writer |
| TEE mismatch | Fingerprint/DRM fails after OTA | Ensure tee partition matches kernel driver version |
| Logo corruption | White screen during boot | Reflash logo.bin using logo_resize tool |
MT6739 firmware is not a single file but a collection of partitioned images. Standard partitions include:
| Partition | Content | |-----------|---------| | preloader | Low-level bootloader (similar to SBL on Qualcomm) | | lk.bin | Little Kernel – secondary bootloader, handles fastboot | | boot.img | Linux kernel + ramdisk (init) | | system.img | Android OS (typically Android 8–10 Go Edition) | | vendor.img | Proprietary blobs (HALs, firmware for Wi-Fi/BT/audio) | | tee.img | Trusted Execution Environment (used for Widevine L3) | | nvram | IMEI, Wi-Fi MAC, Bluetooth address, radio calibration | | secro | Secure region (encryption keys, secure boot data) | | userdata | User apps and settings | | cache | Temporary system data | | odm.img | OEM customizations |
The MT6739 uses ARM Cortex-A53 cores (quad-core, 1.1–1.5 GHz), PowerVR GE8100 GPU, and supports eMMC 5.0. Firmware must be compiled for this exact SoC family.