AT+COPS? — Shows current network operator and access technology.
dc-unlocker2.exe -x Huawei -write_nv 450 0x[hex value]
: The modem firmware has locked out this specific AT instruction. You may need to downgrade the firmware. CME ERROR: 10 : SIM card not inserted. CME ERROR: 16 : Incorrect password or unlock code.
DC-Unlocker presents commands via a GUI client and a command-line (or scriptable) interface in some versions. Typical low-level operations resemble: dc-unlocker commands list
GENERATE CODES : Calculates unlock codes based on the device's IMEI for certain supported models. :
| Command | Description | | --- | --- | | dc-unlocker2.exe -x Huawei -i | Read current IMEI. | | dc-unlocker2.exe -x Huawei -w IMEI 123456789012345 | Write new IMEI (15 digits). | | dc-unlocker2.exe -x Huawei -i2 | Read second IMEI (dual-SIM devices). | | dc-unlocker2.exe -x Huawei -w IMEI2 123456789012345 | Write second IMEI. | | dc-unlocker2.exe -x ZTE -i | Read ZTE IMEI. | | dc-unlocker2.exe -x ZTE -w IMEI 123456789012345 | Write ZTE IMEI. |
| Command | Description | | --- | --- | | dc-unlocker2.exe -i | Lists all available ports with device info (vendor, model, IMEI). | | dc-unlocker2.exe -i port | Shows detailed info for a specific port (e.g., COM10). | | dc-unlocker2.exe -i port=COM3 | Targets a specific port manually. | AT+COPS
: DC-Unlocker is a paid tool (credits-based). Most commands work only after detecting the device and having sufficient credits. Always back up your modem’s firmware/NV data before using unlock commands.
. 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
Once detected, you will see a white terminal window at the bottom of the interface. your command in the terminal and press Enter . You may need to downgrade the firmware
| Command | Description | |---------|-------------| | imei <new_imei> | Change IMEI (where allowed) |
The modem did not understand the parameters of your AT command. Ensure you did not make a typo, omit quotes, or send a newer 4G command to a legacy 3G device. COMMAND NOT SUPPORTED
dc-unlocker2.exe -x [VENDOR] [COMMAND] [VALUE] -port [COM?] -silent -auto_exit
When a modem freezes, acts erratically, or fails to apply settings, these utility commands help manage the physical state of the hardware. AT+CFUN=1 – Sets the modem to full functionality mode.
