Spreadtrum IMEI Tool v4.1 is a utility used for flashing, repairing, or changing IMEI numbers on devices powered by Spreadtrum (SPD) chipsets, such as feature phones and budget smartphones. Key Features of v4.1 IMEI Repair
: Allows for the restoration of original IMEI numbers if they become "Null" or "Invalid" after a firmware flash. Dual SIM Support
: Capable of writing two separate IMEI numbers for dual-SIM devices. Broad Compatibility
: Works with various Spreadtrum processors (SC6531, SC7731, etc.) and supports both firmware formats. Updated Driver Support
: The v4.1 update typically includes better compatibility with newer Windows versions (Windows 10/11) and updated SPD USB Drivers How to Use the Tool Preparation : Install the Spreadtrum USB Drivers on your PC. Configuration
: Open the tool and select the correct communication port (usually COM port). Input IMEI
: Enter the 15-digit IMEI numbers found on the device's sticker or box. Connection
: Power off the device, hold the "Boot Key" (often the Home or Volume button), and connect it to the PC via USB.
: Click the "Write" or "Start" button and wait for the "Pass" notification. Important Warning:
In many regions, changing an IMEI to one that does not belong to the device is illegal. This tool should only be used for a corrupted IMEI to its original factory state. step-by-step guide for a specific device model?
The Spreadtrum (SPD) IMEI Tool v4.1, often integrated with suites like the TFM Tool Pro, is a specialized utility designed to repair or restore original IMEI numbers on devices using Spreadtrum/UNISOC chipsets. Key Features & Updates in v4.1
Diag Mode Integration: This version utilizes Diag Mode, a universal factory USB protocol system for the Spreadtrum platform. This mode eliminates the need for specific brand/model selection or pressing boot keys.
One-Click Operations: Supports one-click Factory Reset, "Read Info," and "Restore Original IMEI" for both feature phones and modern smartphones.
Broad Device Support: Compatible with a wide range of brands including Realme, Samsung (feature phones), Tecno, iTel, Infinix, and Lenovo.
Boot Mode Operations: Includes "Boot Mode" (Flash Mode) for more advanced tasks like Reset FRP by CPU base. How to Use the Tool
To successfully repair an IMEI, users generally follow these steps using the WriteIMEI tool or similar SPD utilities: spreadtrum imei tool v41 updated
Preparation: Install the necessary SPD USB Drivers on your PC.
Configuration: Open the tool and select the connection port (usually "USB").
Input: Enter the original IMEI number found on the device's sticker or by dialing *#06#.
Connection: Click "Write" and connect the powered-off device to the PC. The tool will automatically detect the device and complete the process in a few seconds.
Important Safety & Legal Note: All operations are performed at the user's own risk. It is generally illegal to change an IMEI to a number other than the one originally assigned to the device by the manufacturer.
Spreadtrum (SPD) IMEI Tool v4.1 (often referred to as the WriteIMEI Tool) is a specialized utility used to repair or restore original IMEI numbers on devices powered by Spreadtrum chipsets. This tool is essential when a device shows an "Invalid IMEI" error or loses network service after a firmware flash or factory reset. Key Features of v4.1 Multi-Address Support
: Beyond IMEI, it can write Bluetooth and Wi-Fi addresses, as well as serial numbers. Manual & Auto Input
: Users can manually enter a 15-digit IMEI or use an autogenerated option. Port Management
: Automatically detects devices connected via COM ports once they are in "Diag" or "Calibration" mode. Wide Device Compatibility
: Supports various brands including Infinix, Tecno, Itel, and older models from Micromax and Lava. Preparation Checklist Before starting, ensure you have the following: SPD USB Drivers
: Installed on your PC so the device is recognized in the Device Manager. Original IMEI
: Located on the device’s back panel or original packaging. To check your current IMEI, dial
: A reliable micro-USB or USB-C cable for a stable connection. Step-by-Step Usage Guide
The Spreadtrum IMEI Tool v4.1 is a specialized utility designed for mobile technicians to repair or restore original IMEI numbers on devices powered by Spreadtrum (now Unisoc) chipsets. This updated version introduces enhanced support for modern smartphones and feature phones, addressing common issues like "Invalid IMEI" or "No Service". Key Features of v4.1 Updated
The latest iteration of the Spreadtrum IMEI Tool provides several critical updates for handling a wide range of Unisoc-based hardware: Spreadtrum IMEI Tool v4
Universal Diag Mode Support: Supports both old and new methods for entering Diagnostic (Diag) mode, which allows for IMEI restoration without needing specific brand or model selection.
One-Click Operations: Simplified "One-Click" functionality for factory resets, FRP (Factory Reset Protection) removal, and reading device information for both smartphones and feature phones.
Broad Device Compatibility: Updated to support popular brands including Realme, Samsung, Tecno, iTel, Infinix, Nokia, and Lenovo.
Multi-Address Writing: Beyond IMEI, the tool can write Bluetooth addresses, Wi-Fi addresses, and serial numbers.
Chipset Specific Exploits: Includes support for newer Unisoc Tiger chipsets like the T310, T606, T610, T612, and T616, enabling RSA Auth bypass for more secure devices. How to Use Spreadtrum IMEI Tool v4.1
To successfully repair an IMEI, proper driver installation and connection procedures are required:
Install Drivers: Ensure the latest Unisoc/SPD USB drivers are installed on your Windows PC. Verification can be done via Device Manager, where a successful connection appears as an "SPD U2S COM" port.
Launch the Tool: Extract the tool from its archive and run the executable as an administrator.
Enter IMEI Data: Type the 14 digits of the original IMEI into the provided fields; the tool will typically auto-generate the 15th checksum digit. Connect the Device: Power off the device.
Hold the "Boot Key" (usually Volume Down or Volume Up depending on the specific model).
Connect the device to the PC via USB while holding the key until the tool detects the connection.
Write and Verify: Click the "Write" or "Start" button. Once a "Pass" message is displayed, disconnect the phone and restart it to verify the updated IMEI using *#06#. Safety and Legal Compliance
While the tool is a powerful utility for mobile repair, users must adhere to strict legal and safety guidelines:
The Spreadtrum IMEI Tool v4.1 Updated is a specialized Windows-based utility designed to repair or restore original IMEI numbers on mobile devices powered by Spreadtrum (SPD) and UNISOC chipsets. This version is widely used by technicians to address issues like "Invalid IMEI," "Null IMEI," or network connectivity problems following a firmware flash. Key Features of Version 4.1
The updated v4.1 tool introduces several enhancements for broader compatibility: IMEI read/write: Reliable reading and writing of IMEI,
Multi-Mode Support: Compatible with both Diag Mode (universal factory protocol) and Normal/MTP Mode.
Extensive Chipset Support: Specifically optimized for UNISOC/SPD architectures, including SC7731E, SC9832E, and Tiger series (T606, T610, T612, T616).
Brand Versatility: Supports a wide range of manufacturers such as Infinix, Tecno, iTel, Samsung, Realme, and Nokia.
Beyond IMEI: Can also update and repair Bluetooth addresses, Wi-Fi addresses, and Serial Numbers (SN). How to Use Spreadtrum IMEI Tool v4.1
Restoring your device's original identity requires precise steps to ensure the software communicates correctly with the hardware:
Preparation: Install the necessary SPD/UNISOC USB Drivers on your PC and verify the connection in Windows Device Manager.
Enter Diag Mode: Most devices require booting into "Diag Mode" to allow write access. This often involves connecting the device while holding specific volume keys. Configure the Tool: Launch WriteIMEI.exe. Select the correct COM Port identified in Device Manager.
Click Mode Select and choose "Normal Mode" or "Diag Mode" based on your device state. Write IMEI: Click Read to ensure the tool detects the device info.
Input the original 15-digit IMEI numbers (usually found under the battery or on the retail box) into the IMEI 1 and IMEI 2 fields.
Click Write. A "PASS" message indicates a successful repair. Important Safety and Legal Notice
Warning: Changing or forging an IMEI number is a criminal offense in many countries (including the UK, USA, and India) and is punishable by law. This tool should only be used by authorized service centers to restore a device to its original factory IMEI (which is typically found on the phone's box or under the battery). Do not use this tool to clone IMEI numbers from other devices. Use this software at your own risk.
The Spreadtrum IMEI Tool (often labeled as SPD IMEI Tool or Write IMEI Tool) is a Windows-based utility designed to read, write, back up, and repair IMEI numbers on smartphones powered by Spreadtrum/Unisoc chipsets.
IMEI (International Mobile Equipment Identity) is a 15-digit unique identifier for every mobile phone. When you flash a wrong firmware, perform a factory reset from the engineer menu, or experience a software glitch, the IMEI can become null (null/null) or invalid. This results in "No Service," "Invalid IMEI," or the inability to connect to a mobile network.
The Spreadtrum IMEI Tool v41 Updated is the latest iteration of this utility, offering improved compatibility, faster processing, and support for newer Unisoc chips like the Tiger T606, T610, T618, and SC9863A.
Disclaimer: Modifying an IMEI number can be illegal in many countries (e.g., under the Wireless Telegraphy Act). Only use this tool to restore your phone’s original IMEI number printed on the box or under the battery. Unauthorized changing of IMEI is a criminal offense.
This report details the features, significance, and technical specifications of the "Spreadtrum IMEI Tool v4.1." This utility is a specialized software application used by mobile technicians and repair centers to repair or rewrite the International Mobile Equipment Identity (IMEI) number on devices powered by Spreadtrum (UNISOC) chipsets. The "v4.1 Updated" version represents a significant iteration in the tool's lifecycle, expanding compatibility to newer CPU architectures and resolving bugs present in previous versions (such as v3.x).