Modern 3G modems are designed to work with a specific operator. This is due to the marketing policy of operators, since not every user will buy another modem to work with a SIM card from another operator, and even more so he will not bother with the modem's firmware.
Necessary
the Internet
Instructions
Step 1
Find out the exact model of your modem. This information can be found in the documentation for the modem or on the case of the device itself. If you are not sure you have found the correct code, check it online. If the found photos of the device match your modem, then you have found the model correctly.
Step 2
Enter your modem model and the word "firmware" into the search engine. Study the links provided and find the firmware specifically for your model - since the use of an unsuitable firmware can lead to the failure of the modem. As a rule, there are many different portals that are dedicated to this topic.
Step 3
Download the suggested files and check the data with an antivirus. As practice shows, such files often contain various malicious programs that are automatically registered in the registry of a personal computer. Read the instructions for using the firmware. Usually it stipulates mandatory conditions: pull out the SIM card and do not turn off the modem during the firmware process. Follow the firmware procedure exactly according to the instructions.
Step 4
Check the firmware result with another operator's SIM card. Before that, make corrections to the modem settings - change the operator code and the dial-up number. If the modem has errors, then the firmware was unsuccessful. Repeat the procedure. Do not ignore the instructions for installing the firmware. Modem operation is determined by the firmware stored in the device memory. And if the firmware (which, in fact, is a replacement for the firmware) is executed with violations, the modem will no longer be recognized as a device. It may not work at all, as the entire system will be disrupted.
