: Without a valid IMEI, the hardware baseband cannot communicate with the SIM card, resulting in a total loss of network signal and cellular services. The Solution: The NVRAM Database File
"Invalid IMEI" errors, NVRAM WARNING: Err = 0x10 (Wi-Fi error), or a complete lack of cellular signal.
- Download and install the tool on your Windows PC, running as Administrator. nvram+database+file+mt6765+download+repack
To repair or repack NVRAM on an MT6765 device, you typically need two specific database files from the original firmware:
for fname in sorted(os.listdir(file_dir)): path = os.path.join(file_dir, fname) with open(path, 'rb') as f: data = f.read() file_table.append((fname.encode('ascii'), offset, len(data))) offset += len(data) offset = (offset + 0x1F) & ~0x1F # 32‑byte align : Without a valid IMEI, the hardware baseband
Copy the following over:
A: No. This will hard-brick the Tecno. You must repack the NVRAM using the Tecno’s own scatter file as a base. To repair or repack NVRAM on an MT6765
This method does not actually modify the raw NVRAM partition; instead, it injects a kernel module that overrides the IMEI at runtime. The advantage is that it works even on devices with encrypted preloaders or DA (Download Agent) protection—both common problems on MT6765 phones.
Paste these values into the Readback block fields in SP Flash Tool.