Method 2: Using the Official SPD WriteIMEI Tool (PC Required)
An IMEI repair tool is a piece of PC-based software (rarely an Android APK) designed to communicate with the baseband processor of MediaTek (MTK) or Spreadtrum (Unisoc) chipsets—the brains inside virtually all Chinese keypad phones. Unlike smartphones that use Qualcomm or Exynos, these feature phones lack built-in factory recovery modes for IMEI rewriting.
) on the keypad to access the "Engineer Mode" and write the IMEI without external software. Important Considerations Legal Risks
When these issues occur, an IMEI repair tool is often the only solution. These tools are software applications designed to rewrite or restore the IMEI number on a device. For keypad phones, which typically use MediaTek (MTK) or Spreadtrum (SPD/Unisoc) processors, specialized tools are required.
A premium hardware dongle software. It provides deep partition access to repair corrupted baseband files on SPD devices. Step-by-Step IMEI Repair Methods Method 1: Using Hardware Secret Codes (No PC Required) china keypad mobile imei repair tool
Hardware flashing, factory resets, or firmware corruption can erase a phone's identity. When this happens, the device displays "Invalid IMEI" or "Null IMEI" and blocks all cellular network connections.
IMEI repair tools must only be used to restore a lost or corrupted IMEI back to the original number printed on the phone’s battery compartment sticker.
The mobile repair industry has developed numerous software solutions capable of reading, writing, and restoring IMEI numbers on various chipsets. Chinese keypad phones predominantly run on MediaTek (MTK), Spreadtrum (SPD, now UniSoc), and in some cases, Qualcomm chipsets.
Open the dialer and type one of these common MTK engineering codes: *#*#3646633#*#* *#4634# *#0160#* *#*#20092#*#* Method 2: Using the Official SPD WriteIMEI Tool
A is a powerful and necessary piece of software for mobile repair technicians and advanced users dealing with IMEI-related issues. It serves a legitimate purpose: restoring a device to its factory state after a software error.
If Maui META or SN Write cannot fix the issue, try these advanced methods:
Type or paste the original 15-digit numbers into the and IMEI 2 fields. Click Save or OK to return to the main interface. Click the Start button. Turn off your keypad phone and remove the battery.
Successful repair requires more than just software; physical connection and driver installation are critical. Connection Method A premium hardware dongle software
– The tool writes the IMEI data to the appropriate partition. On some newer devices, an automatic firmware or modem patch is applied before the write.
Click Start . Power off your keypad phone, remove and reinsert the battery, hold the device's specific boot key (usually the Center/OK key, Call key, or * key), and plug in the USB cable.
An IMEI can become corrupted or invalid for several reasons: