Articles and Lifehacks
The majority of mobile device owners have no idea how to connect a USB modem to a tablet. However, this device can be made ergonomic.
Step-by-step connection diagram
In order not to depend on the location and availability of available Wi-Fi networks, you can connect your tablet to the Internet using mobile operators providing communication services. To connect a USB modem to the gadget, you need to perform several manipulations:- First of all, you will need to switch the modem itself to the appropriate mode. It's called only modem. To perform this operation, you will need to connect the modem to a laptop or desktop computer.
Nessesary to use universal entrance.
- Then you will need to run the CD that came with the USB device. All this is performed, respectively, also on a computer or laptop. Drivers can also be downloaded from specialized sites on the Internet.
- Afterwards, an extremely simple installation of drivers for the modem on the computer is carried out. When using Windows XP, it is recommended to launch the HyperTerminal application.
This program will allow you to quickly connect a modem to your tablet. This program is also great for Windows 7 and 8.
USB modem connection sequence
- After launching the HyperTerminal program, a dialog box will appear on the screen. It describes the connection progress in detail. When a window appears, the user will need to come up with a name for further connection. It can be arbitrary.
- Next, the message “connect via” will appear on the screen. You need to select the name of the modem and press the “OK” key.
- Then windows will appear for entering a telephone number and other settings. They should be closed using the Cancel button.
- The next step is to go to the HyperTerminal application menu. You need to select the “Properties” tab and go to the “Settings/Options” category.
There you must select “Settings/ASCII Options”, after which you should click on the item “Display entered characters on the screen”. This is done by pressing “OK” in pairs.
- Then the owner of the equipment should manual mode enter the command AT^U2DIAG=0 and press the “Enter” button.
It's no secret that on tablet devices, which have become part of the life of almost every consumer of electronic goods and services, you can configure access to global network Internet. This can be done in a variety of ways, mainly depending on the tablet model, the capabilities and desires of its user, as well as the supplier mobile services, which the owner of the device uses. Among the most common options for connecting the Internet on a tablet are connections via Wi-Fi, via 3G, and also via cable. But quite often users choose this method as a modem device, so they are, of course, interested in the question: how to set up a tablet to access the Internet via a modem? To answer this, you need to understand the connection algorithm itself, and in addition, the features of 3G modems.
Technology for connecting a modem to a tablet
Connection via 3G modem
In this method, the user must keep in mind that not all 3G modems can be connected to tablet devices. This point follows from some design features of modems. At the same time, not all gadgets may have USB ports or MicroUSB ports for organizing this type of connection.
It is important to know that if the tablet device has a MicroUSB port, the user will need an OTG cable to connect to the network.
If all conditions are met, the user first connects the modem to the computer. At this step, all drivers and applications are installed. Next, in the mobile client options on your PC, you need to disable PIN code verification.
Disable PIN code
Then you need to switch the modem to the “Modem only” mode and go to the network settings, checking the box next to “Data transfer” and “3G”. Next, you need to insert the modem into the tablet and wait a bit, while the modem should blink. Then you need to click “APN Access Points”.
Setting up an access point
Here a new point is created and the data for Internet access of the telecom operator that the user uses is entered. Such information can be found on the official websites of all operators.
To create a new point, you need to press the menu button and select “New access point” from the list that appears. The input data that corresponds to the three main Russian operators can be found in the table below. But if the owner purchased the modem directly from the operator itself, then all the data has probably already been entered there.
Operator Settings Options
After this, you need to save all changes using the “Save” menu item. You can verify that a new point has been created by determining its activity, which is indicated in green. You can wait a few seconds to be safe. In this case, the 3G or GPRS (G) icons should appear on the panel. If nothing works, you need to turn off the modem and restart the tablet. After it is fully loaded, you need to connect the tablet and wait more time. This process may take several minutes, up to about 10. Network access should work and the 3G or simply G icon will appear, this means that the Internet is available.
Saving the setting result
The problem of lack of root rights
It is possible that problems when setting up the Internet on a tablet using a 3G modem may be due to the owner’s lack of root rights. They provide the ability to install any applications you like from almost any source. To get root rights, just follow the instructions and eventually it will be possible to change and delete system files Android.
To obtain superuser rights, you need to install the Superuser program on your device, which has an intuitive clear interface and excellent user rights management capabilities. After installation, the program will start working with default settings. If a request for ROOT rights is received, the owner will see a window in which he must allow or deny access. The Superuser program has the function Reserve copy data for subsequent recovery.
Request for super rights
A little about the modems themselves
Selecting a 3G modem
Today, a fairly decent number of users choose 3G modems. Almost every one that represents at least something offers them. cellular company. But not all of them are capable of providing high-quality communication, therefore, if the user is determined to surf the Internet using a 3G modem, then he should carefully study and select the necessary device. To do this, he needs to take into account:
- Device price range
- Characteristics (data transmission and reception speed, equipment, additional features)
- Modem design.
Wide selection of modems
Advantages and disadvantages of 3G modems
The first advantage that needs to be noted about the 3G modem is its versatility. This means the following: a modem is an interface that is found on almost all devices, which means that a wireless modem can be connected not only to a tablet device, but also to a computer, phone, router, etc.
In addition to its direct purpose, namely Internet surfing, the modem, due to its connector and size, can be used as a flash drive or GPS receiver. Some 3G modems have the option to connect an external antenna.
Modems are also available in a wide variety of colors and case shapes, as well as sizes. All this contributes to the development of creative and design ideas.
Among the disadvantages of 3G modems are the following:
- Fragility associated with a high degree of operation with low wear resistance
- Low impact resistance, as a result of the presence of a body made of low quality plastic.
Video instructions for setting up a modem on a tablet
You probably sometimes blamed yourself for not buying a tablet with a 3G module “on board”; there are situations when WiFi cannot be found nearby, but you need the Internet right here and now. Fortunately, this situation can be corrected, and the familiar USB modems that we are used to using in our laptops come to the rescue.
- In the shop Google Play Market download and install the PPP Widget application
- After installation is complete, create a PPP Widget on your desktop
- On the widget developer forum, find the driver for your tablet and place it in the folder sdcard/pppwidget/lib
- Connect the modem to the tablet using an adapter and go to the PPP Widget settings
- Go to the “Connection Settings” section and enter the settings provided by your operator
- After this, the Internet on the tablet should work using an external 3G modem.
Important! If after all that has been done, nothing worked for you, check the modem for compatibility with the tablet. Your modem must be in the list of supported devices.
Today it is difficult to imagine using a computer without the Internet, so there is no point in making an effort to talk about the limitless possibilities of the World Wide Web. It is absolutely clear that mobile computer devices, which include tablets, require the same mobile access to the network. Well, in fact, if, for example, a laptop can still be imagined with a cable connected for these purposes, then the same connection for a tablet “kills” the very idea of inventing mobile technology. In this case, the solution to the problem of Internet connection is special devices - modems.
There are modems of the second, third and fourth generations (2G, 3G, 4G). Which one should you choose? It would seem that no questions should arise; 4G – if we think logically, is the most right choice, but not everything is so simple. Your preferences should depend on where you will be using the modem. If this is a rural area, remote areas, then most likely you should not count on 4G; at best - 3G, or even 2G. 3G is considered the most optimal.
When buying a modem, you need to either go to the official website of the manufacturer of your tablet and see which 3G modem will be compatible with your device, or use the recommendations of a sales consultant at a communication store.
If we talk about the models offered by operators, be it MTS 824F, Megafon M100-4, etc., then they are all the same Huawei modem E3272 (China), which, as a rule, does not require driver installation, since when connected they are installed automatically, as are all applications necessary for operation. If you purchase a 3G modem in the salon cellular communications one of the operators, then most likely you will buy a device that is already “flashed” and will benefit in price, but you will no longer be able to change the operator.
You can buy a “non-flashed” USB modem and a 3G SIM card from Megafon, Beeline, MTS or another operator. In addition to the mentioned Huawei E3272, the following are now offered:
- 3G Huawei E3131 is a good budget device that can be used as a flash card thanks to the available micro SD slot. Supports 3G and 2G standards.
- 3G ZTE MF 667 is simpler than the previous one in that it is controlled via a web interface, which is more convenient than through an application.
- The Huawei E355 wifi router is an excellent option when used for multiple devices, as it functions as a router and modem.
- 4G USB modem Huawei E3272 (Megafon has M100-4, MTS has 824F, 824FT) is a universal modem with good data transfer speed (100 Mbit/s) and automatic switching between 2G/3G/4G standards depending on the signal mobile operators.
What to choose, of course, is up to you - there is no clear recommendation here, since you need to evaluate the capabilities of mobile operators in your region and your needs.
How to connect a 3G modem to an Android tablet
So, firstly, to get to the most important thing, we must have a tablet running Android OS, equipped with a USB input; if there is only a micro-USB input, then we will also need a special OTG (host) cable. Typically, such a cable should be included as standard, but if for some reason it is not available, you will have to purchase it:
Secondly, the USB modem itself.
And thirdly, since modems were originally intended for computers, to get a Beeline, Megafon or MTS modem, etc. into working order, you will need a PC.
Step 1: Connect the modem to the computer and install software, which should be included (driver programs and special applications for configuration). The software can be recorded on the modem's storage device or on the CD included in the kit.
Step 2: Using the application included in the kit, set the 3G modem to the “modem only” position (because by default all tablets read this device as flash memory), turn off the Wi-Fi module and turn off the PIN code check.
Step 3: In the tablet, open the “Settings” section, find “Network settings” (may be called differently), select “Data transfer” and “3G”.
Step 4: Connect Tablet PC to the modem and wait until the light on the modem stops blinking.
Step 5: In " Additional settings» find “APN access points”, create an access point (you can find out the data from the operator of the selected cellular company, but if the modem was purchased at a certified operator’s point, the necessary settings will be installed initially). We save the settings and reboot our device.
Shout loudly “Hurray!” You can when the 3G icon appears at the top of the screen.
“Unwired” modems are connected as follows:
- Find and launch the trial version of the HyperTerminal program on your PC
- We create a connection to the computer, for which we find “Device Manager” in our USB modem, open properties and in the “Modem” item enter the speed and port numbering.
- After launching HyperTerminal, you must enter a random name for the current connection.
- Then, we enter or insert the port recorded earlier, then we perform the same actions at speed.
- Next, enter “ate1”, after receiving consent, add “at^u2diag=0”.
- Click “OK” and disconnect the USB device.
The modem is now set to desired mode, and you can start connecting to the micro USB port. Some tablets with such a port do not support the required interface, which means we will need them, after receiving them we download and install the free PPP Widget application and attach the widget to the desktop.
On the developer forum we find information about the driver for our tablet device and download it to sdcard/pppwidget/lib.
We connect the tablet to the modem via a cable, in the “Connection Parameters” located in the widget settings, we specify the configuration that needs to be obtained from the selected telecom operator.
How to connect a 4G modem to an Android tablet
If you have come to the conclusion that such a connection is necessary, despite the price ceiling and not universal support, then let’s proceed:
- We disable the following functions on the Android tablet: PIN code request, CardReader and virtual disks.
- Turn off the “Ethernet” value that appears.
- We find the IP address settings, select “Static” (address - must contain the characters 10.0.0.10, mask - 255.255.255.0, enter -10.0.0.1 in empty values).
- We check the possibility of accessing the Internet.
Well, that’s basically all we wanted to talk about in this article. In conclusion, let me give you some advice:
- When purchasing a USB modem, make sure to fill out the warranty card correctly so as not to deprive yourself of the right to warranty repairs.
- Turn off the modem after finishing the Internet session, as it will continue to consume the tablet's resources.
- When choosing a tablet computer, you will find the opportunity to purchase a device with a built-in GSM module, then you will not need a modem.
“Kroilovo leads to Padalov” is a long-known fact.
I bought myself a tablet without a 3G module in order to save money Money. "At work, at home, in a cafe, in shopping centers“Wi-Fi,” I thought and saved. But in vain. There is no Wi-Fi on the highways, in villages, on fishing trips and other barbecues. You can, of course, poke at the smartphone screen, but it’s more convenient and enjoyable to poke at the tablet screen. We need to solve this issue .
So, we have an Android tablet ( Texet TM-7854) and 4G USB modem ( Megafon M150-1, Huawei E3276). All modern Chinese cheap, wretched tablets have a USB host on board, which allows us to think about pairing these devices.
Clearly nothing will work out of the box, so you’ll have to move your fingers a little:
1. Receive on the tablet root access(each manufacturer and model has its own crutches, look for them on 4pda.ru and gsmforum.ru), install a terminal emulator, file manager with full access to file system and hot remount capabilities such as Root Explorer. This completes the preparation of the tablet.
2. Go to the USB modem. It must be switched to " Modem only". Download and install DC-Unlocker on your computer. We connect the modem to the computer. Open DC-Unlocker, click Detect modem. If the modem is detected, then the program window will display data about the piece of hardware.
Now we switch the modem to the AT mode we need with the command. We disable the CD-ROM and Card Reader functions, because Android doesn't understand compounds USB devices, or rather, he understands them and dmesg speaks eloquently about this, but he doesn’t want to work with them, the bitch.
Enter the command into the DC-Unlocker window AT^SETPORT="A1;1,2", if we get OK in response, everything is correct. Now the device works only as a modem, faster and more stable.
Note: if you suddenly need to return all functions of the device, enter the command AT^SETPORT="A1;10,12,13,16,A1,A2"
3. Return to the tablet.
Editing the file /system/bin/preinstall.sh, add the line to it
echo "vid pid" > /sys/bus/usb-serial/drivers/option1/new_ id
where vid and pid are the values of your usb modem. They can be viewed in Device Manager when the modem is connected to the computer. In my case Vid=12d1 Pid=1506
Reboot the tablet.
4. Now our tablet sees the modem and can work with it. We just need to find out which port our hardware is installed on
We connect the modem to the tablet with an OTG cable (included with all tablets costing more than two thousand rubles), wait 10-15 seconds until the modem connects to the nearest BS.
Open a terminal and give commands
su
dmesg
We look for a line in the output containing “GSM modem ...... ttyUSBx”, x is the port number on which the modem sits, for example ttyUSB0, remember this value.
5. Download GScriptMod and install it.
6. Create a gscript folder on the memory card and put these files there: one two .
Edit the first file and change the port value there to the one you received
.......................................
if [-c /dev/ ttyUSBx]; then
.......................................
.......................................
7. Create a directory /etc/ppp/peers, add a couple more files there: one, two
IN conf-pppd change ttyUSBx, enter the username and password, for our example the file will look like this:
defaultroute
noipdefault
