Spreadtrum IMEI Tool v41 (also known as the SPD Write Tool) is a specialized utility designed for devices using Spreadtrum/Unisoc chipsets. It is primarily used by technicians to repair or write IMEI numbers that have been lost or corrupted, often after a firmware flash or factory reset. Key Features of v41
The updated v41 release typically includes improvements for newer Unisoc chipsets and enhanced stability on Windows 10/11. Multi-Mode Support : Allows writing IMEI via Calibration Mode Normal Mode Dual SIM Compatibility
: Supports writing individual IMEI numbers for SIM 1 and SIM 2 simultaneously. Chipset Range
: Compatible with a wide range of SC-series (e.g., SC7731, SC9832) and newer Unisoc Tiger series processors. Diagnostic Tools
: Includes functions to read current device info and perform factory resets directly through the tool. How to Use the Tool Driver Installation : You must install the Spreadtrum/Unisoc USB Drivers
for your PC to recognize the phone in Diag or Calibration mode. Configuration : Open the tool and navigate to the
tab. Select the appropriate communication port (usually "USB") and the IMEI writing method (Calibration mode is often the most reliable). Input IMEI
: Enter the 15-digit IMEI numbers found on the device’s original sticker or packaging. Connection : Power off the device. Click
in the tool, then connect the phone to the PC while holding the Volume Down or Volume Up key (boot key varies by model) to enter the required mode. Completion
: The tool will show a green "Passed" or "Success" message once the write process is finished. Important Considerations
: In many regions, changing an IMEI number to anything other than the original hardware ID is illegal. This tool should only be used for an invalid IMEI to its original state. Root Requirements
: Unlike some mobile-based apps, this PC-based tool generally does not require the phone to be rooted as it communicates with the hardware at a low level. Professional Use
: If you are unsure of the process, it is recommended to visit a professional service center to avoid permanently "bricking" the device. for the v41 drivers and tool?
🌟Chimera update🌟- Improved Tecno/Infinix Repair IMEI, ... - Facebook
Spreadtrum IMEI Tool v4.1 (also known as WriteIMEI) is a specialized Windows utility used for repairing or writing IMEI numbers on mobile devices powered by Spreadtrum (SPD) chipsets. This updated version improves compatibility with newer Android devices and enhances the multi-address writing process. Key Features of v4.1 Multi-IMEI Support : Capability to repair and write both IMEI 1 and IMEI 2 simultaneously for dual-SIM Spreadtrum devices. Extended Hardware Repair : Beyond IMEI, the tool allows you to write the Bluetooth (BT) address Wi-Fi address , and device Serial Number Normal Mode Support
: Includes a "Normal Mode" selection for easier device recognition once booted into Diag mode. Real-time Device Reading
: Allows users to click "Read" to pull current device information directly into the interface before making changes. Port Selection (COM) spreadtrum imei tool v41 updated
: Automated and manual selection of the specific COM port assigned to the device in Windows Device Manager. Broad Chipset Compatibility
: Supports a wide range of SPD chipsets, including SC6531, SC7731, SC9832, and newer models used in budget-friendly smartphones. Typical Workflow Driver Installation : Install the appropriate Spreadtrum USB drivers on the PC. : Boot the target device into Diag (Diagnostic) Mode
(often by holding specific volume keys while connecting to USB). Port Mapping
: Select the correct COM port in the tool that matches the entry in Device Manager. Configuration
: Use the "Select (SET)" menu to toggle fields for IMEI, Bluetooth, or Wi-Fi.
: Input the valid data and click "Write" to apply changes; a "PASS" message indicates success. Legal Disclaimer
: This tool is intended for repairing original IMEI numbers that have been lost or corrupted during software flashing. Changing a device's IMEI to a different one is illegal in many jurisdictions. for this specific version? How to use Spreadtrum WriteIMEI tool
The Spreadtrum (SPD) IMEI Tool v4.1 is a specialized Windows-based utility designed for flashing, repairing, and backing up IMEI (International Mobile Equipment Identity) numbers on devices running on Spreadtrum chipsets. The v4.1 update brings significant improvements in driver compatibility, CPU support, and user interface stability.
*#06# – both IMEIs should now appear.Troubleshooting: If you get "Write Failed," try switching to Meta Mode (select "Connect via META" in settings) or use the Backup/Restore method: first backup existing IMEI, modify the backup file, then restore.
The tool is designed to work with standard Spreadtrum database file formats.
nvitem.bin or equivalent database files specific to the device model, ensuring that the IMEI is written to the correct address in the flash memory.The Spreadtrum IMEI Tool v41 Updated remains the gold standard for free, offline IMEI repair on Unisoc-powered devices. Whether you are a professional repairing dozens of phones daily or a hobbyist fixing your own Tecno Spark, this tool offers a reliable, fast, and effective solution.
By following this guide, you can restore network functionality, fix "No Service" errors, and bring dead IMEIs back to life. Remember to always use legitimate, original IMEI numbers and adhere to your local telecommunications laws.
Have you successfully used v41 on a new Unisoc device? Share your experience in the comments below!
Keywords: Spreadtrum IMEI Tool v41, SPD IMEI Tool, Unisoc IMEI repair, Write IMEI on SC9863, Fix null IMEI on Tecno, Itel IMEI tool download, v41 updated, SPD Tool 2024/2025.
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 v41 (also known as the
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 (also known as the WriteIMEI Tool) is a lightweight utility used to repair or rewrite IMEI numbers on smartphones and feature phones powered by Spreadtrum (SPD) or UNISOC chipsets. It is commonly used to fix "Invalid IMEI," "No Service," or "Emergency Calls Only" errors without requiring expensive hardware boxes. Key Prerequisites
SPD USB Drivers: Must be installed so the PC can recognize the device in Diag (Diagnostic) mode.
USB Cable: A standard data cable for connecting the device to a PC. Step 6: Reboot and Verify
Original IMEI: Always use the original IMEI number found on the device's sticker or box to remain compliant with local laws. Supported Devices & Chipsets
The tool works across various SPD/UNISOC-based brands, including:
Brands: Infinix (Smart 7/8, Hot series), Tecno (Spark series, Pop series), Itel, Micromax, Lava, and Karbonn.
Features: Beyond IMEI, version 4.1 can often write Bluetooth addresses, Wi-Fi addresses, and Serial Numbers. Step-by-Step Usage Guide Preparation: Power off your device. Launch WriteIMEI.exe on your PC as an Administrator. Configuration:
Click on Set or Mode Select. Choose Normal Mode and select the correct COM Port (usually found in Windows Device Manager under "Ports").
In the Select menu, tick the boxes for IMEI 1 (and IMEI 2 if it's a dual-SIM device). Entering IMEI:
Enter the 15-digit original IMEI number into the corresponding fields.
If you need to fix other addresses (BT/Wi-Fi), tick those options and enter the addresses before clicking Save. The Writing Process: Click the Write button in the tool.
Connect your powered-off phone to the PC via USB. (Note: Some devices require holding a "Boot Key," like Volume Up or Down, while connecting).
Wait for the progress bar. A green "PASS" message indicates the process was successful. Verification: Disconnect the device and power it on.
Dial *#06# on the keypad to verify that the IMEI has been restored. Troubleshooting Tips
Device Not Detected: Ensure the SPD Drivers are correctly installed and try a different USB port or cable.
Invalid COM Port: Check Device Manager to ensure the phone is showing up under "Ports (COM & LPT)" when connected in Diag mode.
Process Fails: Ensure you are using the version specifically designed for your chipset generation (v4.1 is generally compatible with newer UNISOC chips).
Disclaimer: IMEI repair should only be used to restore a device's original identity. Changing an IMEI to a different one is illegal in many jurisdictions.
I can’t help with instructions for using, modifying, or bypassing device identifiers or security features (including IMEI tools, changing IMEI numbers, or similar). That includes tutorials, step-by-step guides, downloads, or examples for tools used to alter IMEIs or other unique device identifiers.
If you meant something else about Spreadtrum devices (e.g., legitimate servicing, diagnostics, firmware flashing for recovery, unlocking bootloader with manufacturer approval, or legal software tools), tell me which specific, lawful task you want and I’ll provide a safe, detailed tutorial with examples.
Please note: This tool is intended for professional technicians and repair services. Modifying IMEI numbers is illegal in many jurisdictions unless used to restore a device to its original factory state.