Tools Required:
| Source | Reliability | Notes | |--------|-------------|-------| | Your own phone’s full firmware (scatter file) | 100% – Best | Extract from stock ROM using MTK Extractor | | GSM-Forum (approved sections) | Medium | Check user reputation; scan all files | | Hovatek Forum | High | Usually provides generic MT6765 NVRAM with IMEI repair guide | | XDA Developers (specific device threads) | High | Community-shared backups with hashes | | 4PDA (Russian) | Medium | Requires translation; good for obscure MT6765 variants |
The MT6765 (Helio P35) stores device-specific data (IMEI, MAC addresses, RF calibration values) in the NVRAM partition. Flashing a full firmware (download in SP Flash Tool) often overwrites NVRAM with a generic one, causing:
This guide details how to repack a backed‑up NVRAM database file into a flashable binary for restoration.
The MediaTek MT6765 (Helio P35/G35/G65) is a highly integrated SoC found in millions of budget and mid-range smartphones. One of the most common failure points after firmware re-flashing (via SP Flash Tool, SP Meta, or WriteIMEI tools) is the corruption or erasure of the NVRAM partition.
Symptoms of NVRAM corruption:
This guide documents the process of extracting, validating, modifying, and repacking NVRAM + database + file system images for the MT6765 platform. nvram+database+file+mt6765+download+repack
In the hex-edited database, locate the string product_id. For MT6765, it’s often k50 or k68v1_64. Replace it with your device’s exact project name (from build.prop: ro.product.device).
To repair or modify a device, you typically need two categories of files:
For Android technicians and enthusiasts working on MediaTek (MTK) devices, handling the Non-Volatile Random-Access Memory (NVRAM)
is a critical skill. NVRAM is responsible for storing vital device-specific hardware information such as IMEI numbers, MAC addresses, calibration data, and baseband information. MediaTek MT6765 (Helio P35)
chipset, corrupt or missing NVRAM data usually manifests as a "Null IMEI," "NVRAM WARNING: Err = 0x10" in Wi-Fi settings, or total loss of network signals. Resolving these issues requires obtaining the correct NVRAM database files and understanding how to repack or modify them. 1. What is the NVRAM Database File?
The NVRAM database is not a single file but a pair of specific files generated during the compilation of the device's firmware. These files act as a map for flashing tools and Maui META to understand the structure of the NVRAM partition on the phone. They are typically named: Tools Required :
Comprehensive Guide to MT6765 NVRAM Database Files: Download, Repack, and Restoration
If you are working on Mediatek (MTK) devices, specifically those powered by the MT6765 (Helio P35) chipset, you've likely encountered "Invalid IMEI" or "WiFi/Bluetooth Address: Unavailable" errors after a firmware flash or a format. These issues are almost always tied to a corrupted or missing NVRAM (Non-Volatile Random Access Memory) partition.
This article provides a deep dive into finding the correct NVRAM database files, how to download them, and the technical process of repacking them for restoration using professional service tools. 1. What is the MT6765 NVRAM Database?
The NVRAM database for the MT6765 chipset consists of two critical files required by Meta Mode tools (like Maui META or ModemMeta) to communicate with the device's hardware:
BPLGUInfoCustomAppSrcP_MT6765...: This is the Modem Database (MDDB) file. It contains the structure of the NVRAM and allows the software to map IMEI and calibration data to the correct sectors.
APDB_MT6765...: This is the Application Processor Database. It helps the tool understand the software configuration of the Android system side. This guide details how to repack a backed‑up
Without these specific database files, you cannot perform "IMEI Repair" or "NVRAM Write" operations because the servicing software won't know how to "talk" to the MT6765's internal memory structure. 2. Where to Download MT6765 NVRAM Database Files
Finding these files can be tricky because they are usually bundled within the Official Stock Firmware (ROM) of the specific device you are repairing. How to Extract from Stock ROM:
Download the Factory Fastboot or Flash Tool firmware for your specific MT6765 device (e.g., Samsung A03s, Xiaomi Redmi 9C, Oppo A15).
Look inside the database or modem folder within the firmware directory.
A common mistake is downloading a raw NVRAM backup from the internet and flashing it directly. This rarely works. Here is why:
A Repack involves: