V41 Updated | Spreadtrum Imei Tool

Spreadtrum IMEI Tool v4.1 (also known as the SPD WriteIMEI Tool

) is a lightweight Windows utility used to write or repair the International Mobile Equipment Identity (IMEI) on devices powered by Unisoc/Spreadtrum chipsets. Key Features of v4.1 Dual-IMEI Support

: Ability to write both IMEI 1 and IMEI 2 simultaneously for dual-SIM devices. Multiple Writing Modes

: Supports "Normal Mode" and "Working Mode" depending on the device's connection state. USB/COM Support

: Works via standard USB cables using Spreadtrum USB drivers. Lightweight : A portable tool that does not require heavy installation. Step-by-Step Usage Guide Preparation : Install the necessary Spreadtrum USB Drivers on your PC to ensure the device is recognized. Launch Tool : Extract and open the WriteIMEI.exe Configuration Mode Config to select the IMEI writing method.

Ensure the "IMEI1" and "IMEI2" boxes are checked if you are updating both. Enter IMEI

: Type the 15-digit IMEI numbers (usually found under the battery or on the original box) into the input fields. Start Process Connect Device : Power off your phone, hold the Volume Down (or Boot key), and connect it to the PC via USB. Completion : The tool will show a green message once the process is successful. Important Safety & Legal Notice Educational Use Only

: Changing an IMEI number is illegal in many jurisdictions. This tool should only be used for repairing an invalid or null IMEI to restore original factory settings. Backup Data spreadtrum imei tool v41 updated

: Always back up your device's NVRAM/Firmware before attempting any IMEI operations to avoid permanent "No Service" issues. Anti-Virus

: Some security software may flag these tools as "potentially unwanted" because they access low-level hardware; ensure you download from a verified source troubleshooting steps for driver connection errors or a list of supported Spreadtrum chipsets Spreadtrum Imei Tool V4.1 - Google Docs Spreadtrum Imei Tool V4. 1 - Google Drive. Google Docs

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.

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:  Spreadtrum IMEI Tool v4

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). Shark Series: SC7731, SC7731E, SC7727

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. 

4. Supported Chipsets (Non-Exhaustive)

The v4.1 update targets a wide range of low-to-mid-tier devices. Supported chipsets typically include:

• Shark Series: SC7731, SC7731E, SC7727.
• Whale Series: SC9832, SC9832E.
• Newer 64-bit Architectures: SC9863, SC9863A.
• Budget 4G Chips: UIS8811, UIS8810.

1. Expanded CPU Support (Major Update)

The most significant feature of the v4.1 update is the expansion of supported processors. While older versions struggled with newer architectures, v4.1 adds native support for:

• Unisoc Chipsets: Improved compatibility with the newer Unisoc series (formerly Spreadtrum).
• Supported Models: Includes support for SC6530, SC6531, SC6600L, SC6820, SC6825, SC7715, SC7730, SC7731, SC8810, SC8825, and SC8830.
• 64-Bit Architecture: Better handling of 64-bit SPD devices compared to legacy versions.

Prerequisites:

• A Windows PC (7, 8, 10, or 11).
• A USB cable (preferably original).
• Spreadtrum/Unisoc USB drivers installed.
• The target phone (with at least 50% battery).

6. Database File Support (.nb0 / .pac)

The tool is designed to work with standard Spreadtrum database file formats.

• It allows users to load the 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.