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Dc-unlocker Commands List File

This dc-unlocker commands list gives you full control over your modem, router, or dongle far beyond the graphical interface. Whether you need to unlock a SIM lock, repair a corrupted IMEI, manage LTE bands, or automate a repair shop’s workflow, these commands are your toolkit.

Bookmark this guide. Experiment on spare devices first. And always respect local laws regarding IMEI modification and SIM unlocking.

Need the latest commands?
Run dc-unlocker2.exe --help from the command line to see all available switches for your specific software version.

Happy unlocking!

DC-Unlocker is a specialized utility used primarily for unlocking, repairing, and servicing modems, routers, and phones

. While most actions are handled through its graphical user interface (GUI), advanced users often use the built-in terminal to send specific AT commands to interact directly with device firmware. Essential DC-Unlocker Terminal Commands

The following commands are commonly used in the DC-Unlocker 2 Client terminal to manage Huawei and ZTE devices:

: The basic "Attention" command to check if the device is communicating with the computer. The device should respond with AT^CARDLOCK=""

: Manually enters the Network Control Key (NCK) to unlock the modem for any SIM card. AT^DATALOCK=""

: Unlocks the device's data protection, which is often required before executing other sensitive service commands. AT^U2DIAG=255 dc-unlocker commands list

: Switches the modem to "Modem + CD-ROM + Card Reader" mode, useful for ensuring all drivers are visible. AT^U2DIAG=0

: Sets the device to "Modem only" mode, which can resolve detection issues in some software. : Reboots the device to apply changes. : Displays the manufacturer's name. : Displays the specific model name. : Retrieves the device's IMEI number. Onomondo.com Common Service Procedures Netgear MR6500 Repair IMEI... AT command error

DC-Unlocker software is a powerful tool for unlocking and repairing modems, routers, and phones. While it features a user-friendly GUI, the true power lies in its AT Command interface

. Using the "Command Line" or "Terminal" feature allows you to perform advanced diagnostics and configurations that the standard buttons might miss.

Below is a comprehensive guide and list of the most common DC-Unlocker commands to help you manage your hardware effectively. Getting Started with the Terminal

To use these commands, open DC-Unlocker, detect your device, and navigate to the "Advanced"

tab (depending on your version) to find the terminal window. Ensure your device is in "PC UI Interface" or "Diagnostic" mode. 1. General Information Commands

These are the "safe" commands used to identify the device’s current state and firmware version.

: Displays basic device information (Manufacturer, Model, Revision). : Identifies the manufacturer. : Shows the specific model name. : Provides the current firmware version. : Displays the device IMEI number. : Lists all AT commands supported by the specific device. 2. Network & Signal Diagnostics This dc-unlocker commands list gives you full control

Use these to troubleshoot connection issues or check signal strength before deploying a router. : Returns signal strength (0–31). Higher is better.

: Shows the current network operator the device is connected to. : Checks the GPRS registration status. AT^SYSINFO

: (Huawei specific) Provides detailed system information, including service status and domain. 3. Unlocking & Security Status

The primary reason most users turn to DC-Unlocker. These commands help you check if a device is locked and how many attempts remain. AT^CARDLOCK? : Returns the lock status. Example Result:

(The first number '2' means locked; '10' is the remaining attempts). AT^NWLOCK?

: Similar to Cardlock, used on various modem brands to see sim-lock status. AT^CARDLOCK="YOUR_CODE"

: The manual command to enter an unlock code (replace with your actual 8 or 16-digit code). 4. Advanced Configuration (Huawei & ZTE) : Reboots the modem/router immediately. AT^SETPORT?

: Displays the current configuration of USB ports (Modem, PC UI, NMEA, etc.). AT^SETPORT="A1,A2;1,2,3" : Used to change which ports are active. Using the wrong string can disable your diagnostic port. : Sets the phone to "Full Functionality" mode.

: Sets the device to "Minimum Functionality" (useful for saving power during testing). Important Safety Tips Case Sensitivity: | Command | Description | |---------|-------------| | info

Most AT commands are case-sensitive. Always use uppercase (e.g., The "OK" Response: If a command is successful, the terminal will return . If it returns

, the command is either unsupported by your firmware or typed incorrectly. Backup First: Before running commands that change port configurations ( AT^SETPORT ), ensure you have the original configuration saved.

Here’s a helpful, honest review of the DC-Unlocker commands list based on typical user experiences:


| Command | Description | |---------|-------------| | info | Read full device information (IMEI, model, firmware, lock status, etc.) | | detect | Detect connected device |

DC-Unlocker is one of the most powerful and widely used tools for unlocking, repairing IMEI, repairing firmware, and flashing various USB modems, routers, phones, and dongles (Huawei, ZTE, Sierra Wireless, Alcatel, etc.). While the graphical user interface (GUI) is popular, the true power of DC-Unlocker lies in its command-line interface (CLI). Using commands allows for automation, batch processing, and accessing hidden features not always visible in the standard software.

This article provides a complete, categorized dc-unlocker commands list—from basic port detection to advanced NV item rewriting.

Disclaimer: Using DC-Unlocker commands improperly can permanently damage your device. Always back up your NV data before writing. This guide is for educational purposes. Ensure you have the legal right to unlock your device.


  • Unlock directly:
  • Update unlock status / check unlock:
  • DC-Unlocker connects to supported devices via USB (or through a client-server architecture) and issues low-level commands to query device data or change locked parameters. It supports many brands and chipsets (e.g., Huawei, ZTE, Alcatel, Novatel, Sagemcom), leveraging vendor-specific protocols and secure unlock procedures where available. The tool relies on a credits system for certain operations and often requires specific drivers and modes (e.g., diagnostic/ADB/bootloader/loader mode) to communicate with devices.

    | Command | Description | |---------|-------------| | flash <filename> | Flash firmware file | | write <addr> <file> | Write binary to specific memory address |