Firmware and unlock modem ZTE MF823D

Description of a simple way to flash and unlock the ZTE MF823D modem. The need for this arises for certain reasons. For example, you bought a modem from Beeline, but after a while, disappointed in the connection, decided to switch to Megafon. Here are two exits. Either buy a Megafon modem or unlock Beeline. Unlocking is required for the modem to work with a third-party SIM card. After the unlocking procedure, you can use the services of any major cellular operator.

Unlock method for ZTE MF823D

  • The most affordable option is to unlock the ZTE MF823D 4G modem. Connect the MF823D modem to a computer in a USB connector without a SIM card! The browser will open the web interface window required to control the device. In the address bar we see: http //: 192.168.1.1 or http //: 192.168.0.1, or http //: 192.168.8.1.
  • The next step is to put the modem in port mode. This is done as follows. Copy the command to the browser address bar:

//192.168.0.1/goform/goform_process?goformId=MODE_SWITCH&switchCmd=FACTORY

If necessary, insert the desired number into the command. Suppose if there was http //: 192.168.8.1, then enter the same in the command. Press Enter, go to this address. If everything is done correctly, the modem will switch to port mode, displaying the answer result: FACTORY: ok in the browser window.

You can also do this with dc-unlocker.

Or run the SCSI.exe executable file located in the attached archive //drive.google.com/file/d/0B_NrIMeqHIaYMUk5NjZiRExWME0/view?usp=sharing

  • Next, you need to install a driver for ports in the system. The archive you downloaded contains the ZTEDrvSetup.zip nested archive. It contains the driver you need. Run the installation, wait for the process to complete, and then open Device Manager in any way that is convenient for you. If you do not know how, then press the Win + r keys at the same time and copy the line mmc devmgmt.msc in the started field for entering. You can also open Device Manager through the control panel. Click Start – Control Panel – Device Manager.
  • The next step is to open the Ports branch (COM and LTP) by clicking on the arrow.
  • In the branch we see several ports. We are interested in ZTE Diagnostics Interface. This is the port for diagnostics. You need to remember his number. If the number is greater than 9, you need to select the port, right-click the context menu and click “Properties”. In the window, go to the “Port Options” tab and click “Advanced”. Another COM Advanced Options window appears. Set the port number to 9 or less here. It is important to select an idle port.
  • So, everything is ready. We begin to unlock ZTE MF823D. To do this, extract the contents of the nested archive qtools_win.zip from the previously downloaded archive to the root directory of disk “C” in the folder previously created there with the same name. To unlock the ZTE MF823D you need to double-click the file MF823_MF825_MF90 + _unlock.cmd with the left mouse button. In the opened program you will need to enter the number of the diagnostic COM port. It is important to remember that you only need to enter numbers (without COM). And press Enter. The program will work and switch your already unlocked modem to network card mode. To check the operation and remove the unit, insert a third-party SIM card and connect to the network. If all went well, now you know how to unlock the ZTE MF823D modem.

Another way to unlock the ZTE MF823D

Follow steps 1 and 2 of the first instruction. Then double-click the_DVA.cmd file with the name of your modem in the folder you created on drive C. Allow the SCSI.exe file to run. Select the diagnostic COM-port in the device manager – it should open automatically and that’s it. The modem works in network card mode and unlocked.

Unlock method for ZTE MF823

Unlocking ZTE MF823 is almost no different from the previous one. Follow the same steps in the same order and you will get an unlocked ZTE MF823 modem.

unlock online

It is also worth mentioning ways to unlock modems through online services. However, it should be noted that unlocking is paid there and not all modem models are supported. In order to use this service, you will need the following information about your device: modem model, IMEI and Firmware.

This article describes how to unlock the 4G modem ZTE MF823D. The presented methods are simple, clear and effective for firmware and unlocking of ZTE modems. Write in the comments who managed to unlock your device, and who had problems. Attach screens and detailed description.

 

by Abdullah Sam
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