The lack of access to Wi-Fi and the critical lack of traffic on the second smartphone require instantly turning the main Android device into a mobile router, which is achieved by activating the access point function in the settings in a few seconds.
The process of organizing a local network between two devices does not require deep technical knowledge, however, it has its own nuances depending on the version of the operating system and the device model. In this article, we will look in detail at how distribute the Internet from one phone to anotherusing wired and wireless interfaces, and also look at hidden settings that will help optimize connection speed.
You will learn about the differences between a standard access point and special modes, understand which method consumes less energy and provides better stability. Regardless of whether you are using a flagship Samsung Galaxy or a budget device from Xiaomi, the setup principles remain similar, although the menu layout may differ slightly.
Preparing the donor device for operation
Before activating the modem mode, you need to make sure that the phone that will distribute traffic is ready for this load. First of all, check your mobile operator balance and make sure that your tariff plan allows you to use the function modem mode. Some operators block this option or charge additional fees for distributing traffic to other devices.
Make sure that mobile data transfer is enabled on the donor device. Without an active connection to the cellular operator's network, distribution will be impossible, even if all settings are made correctly. It is also worth checking the signal level: if it is weak, the speed on the receiving device will be extremely low, and the donor’s battery will drain faster due to constant attempts to maintain the connection.
⚠️ Attention: The active mode of the access point significantly increases battery consumption. If you are planning a long session, connect your phone to a charger or external battery.
It is recommended to close background applications that actively consume bandwidth on the donor phone itself in order to allocate maximum bandwidth to the client. This is especially true if you are going to watch videos or download large files on a second device.
☑️ Ready for distribution
Method 1: Create a Wi-Fi access point
The most popular and convenient way is to use the built-in access point function Wi-Fi. This method allows you to connect multiple devices at once, creating a small wireless network around your phone. First, open the settings of your smartphone and find the section responsible for connections.
Depending on the shell, the path may look different. On a clean Android this is usually a section Network and Internet, then Access point and modem. In the shells from Xiaomi or Realme look for the item More or Additional functions. Click on the switch Wi-Fi access pointto activate it.
Before connecting a second phone, it is extremely important to configure security settings. Go to the access point settings and change the network name (SSID) to a unique one so as not to be confused with neighboring networks. Be sure to set a strong password using encryption WPA2 PSK or WPA3to prevent unauthorized access to your traffic.
- 📶 Set the 5 GHz band for maximum speed if both devices support this standard.
- 🔒 Avoid simple passwords like “12345678”, since they are easy for neighbors to pick up.
- ⏱️ Set up the access point shutdown timer so that it does not work in vain when devices are not active.
After saving the settings on the second phone, turn on Wi-Fi, find the created network in the list of available ones and enter the password. The connection should be established automatically, and the network icon will appear in the status bar of both devices.
If you often share the Internet with the same devices, add them to the list of allowed clients in the access point settings. This will speed up the connection and increase security.
Method 2: Distribution via USB cable
If the wireless connection is unstable or you need maximum speed without loss on the radio channel, use a wired connection. A USB modem provides a more stable ping and simultaneously charges the receiving device, which is a huge plus during long-term operation.
To implement this method, you will need a working USB cable, preferably original or certified, capable of transferring data, and not just charging. Connect the donor phone to the client phone. In some cases, an adapter may be required USB OTGif the connectors do not match.
On the phone that distributes the Internet, go to the modem settings and activate the switch USB modem. This item often becomes active only after the cable is physically connected. On the receiving device, a notification about connecting via USB may appear in the network settings or the network interface will be automatically configured.
⚠️ Attention: When connecting via USB, the client phone may begin to charge from the donor. Monitor the charge level of the main device so that it does not run out at the most inopportune moment.
The advantage of this method is the absence of radio interference and the impossibility of intercepting a signal from the outside. However, mobility is limited by the length of the cable, which makes this option for static use, for example, in a car or office.
Why does the USB modem not turn on?
If the USB modem option is inactive (gray), check the cable. Many cheap cables are for charging only and have no data lines. Try replacing the cable with a known good one.
Method 3: Bluetooth modem to save energy
Although this method is considered outdated due to the low data transfer speed, it can be a lifesaver in emergency situations when you need to transfer a small amount of text information or check email, and the battery is low.
Connection speed Bluetooth is significantly lower than via Wi-Fi or USB, but power consumption is minimal. To set up, you must first pair the two devices. Go to the Bluetooth settings on both phones, turn on visibility and confirm the pairing by checking the access codes.
After successful pairing on the donor phone, in the modem menu, activate the item Bluetooth modem. On the receiving device, go to the Bluetooth settings, click on the name of the paired device and select the option to use it to access the Internet. The connection establishment process may take up to 30 seconds.
| Parameter | Wi-Fi Hotspot | USB modem | Bluetooth modem |
|---|---|---|---|
| Speed | High (up to 150 Mbit/s) | Very high (stable) | Low (up to 2-3 Mbit/s) |
| Battery consumption | High | Average (with charging) | Minimum |
| Range | Up to 15 meters | Cable length | Up to 10 meters |
| Number of clients | Up to 10 devices | 1 device | 1 device |
Use a Bluetooth modem only when other options are not available. This method is not suitable for watching videos or downloading heavy pages due to the length of time it takes to load content.
Setting up frequency and security standards
Deep configuration of the access point allows you to adapt the network to specific reception conditions. In the advanced hotspot settings, you can often select a frequency range. By default, many phones use 2.4 GHz, which provides better signal penetration, but is susceptible to interference from microwaves and neighboring routers.
Switching to band 5 GHz allows you to get higher speeds and stability if the devices are in direct line of sight to each other. However, the 5 GHz signal travels less well through walls and fades quickly over distance. If you are in a dense urban area, experimenting with frequency can give a noticeable increase in speed.
It is also worth paying attention to the encryption standard. Outdated WEP cracks in minutes, so always choose WPA2-Personal. If your devices support the new standard WPA3enable it for maximum data protection from interception.
⚠️ Attention: Settings interfaces may change with firmware updates. If you do not find the frequency selection item, the manufacturer may have hidden it or the device does not support this range.
Some advanced users change the broadcast channel manually to avoid interference with neighboring networks. This can be done through special engineering menus or Wi-Fi analysis applications, but for most scenarios, automatic channel selection works quite well.
Selecting the correct frequency (2.4 GHz or 5 GHz) can increase the distribution speed by 2-3 times in noisy air conditions.
Solving common connection problems
Even with proper configuration, users may encounter a situation where the Internet is not distributed or is unstable. One of the common reasons is blocking by the mobile operator. Providers can determine the distribution of traffic by the value TTL (Time To Live) and block the connection or charge additional funds.
To bypass such restrictions, experienced users change the TTL value on the device that distributes the Internet, bringing it to the standard value of mobile devices (usually 64 or 65). This requires obtaining root access and using a terminal, which is not recommended for beginners due to the risk of violating the warranty.
Another problem is a conflict of IP addresses or failures in the Android network settings. In this case, resetting the network settings helps. Go to Settings → System → Reset settings → Reset Wi-Fi, mobile data and Bluetooth settings. This action will delete saved Wi-Fi passwords, but often solves connection software glitches.
- 🔄 Reboot both phones - this is a trivial but effective step to reset network services.
- 📵 Disable airplane mode and enable it again to restart the radio.
- 🔍 Make sure that the receiving device does not have a proxy server enabled in the Wi-Fi settings.
If the problem persists, try forgetting the network on the client device and connecting again, carefully entering the password. Sometimes it helps to disable power saving for the application responsible for the access point so that the system does not “kill” the distribution process in the background.
How to change TTL without root access?
On some devices (for example, Xiaomi) you can change the TTL through the "For Developers" menu by enabling the "Mobile hotspot is always allowed" option or through ADB commands from the computer, but this does not work on all firmware.
Frequently asked questions (FAQ)
Does Internet distribution affect the speed of my own surfing?
Yes, the bandwidth is divided between all connected devices. If you download a file on a client phone, the speed on the donor phone will decrease in proportion to the channel load.
Is it possible to distribute the Internet if the phone does not have a SIM card?
No, to distribute mobile data you need an active SIM card with a tariff. However, you can rebroadcast the Wi-Fi signal (Wi-Fi Repeater feature) if it is supported by your phone model, but this is a rare feature on Android.
How many devices can you connect to the hotspot?
Usually Android allows you to connect 5 to 10 devices at the same time. The exact number depends on the processor model and version of the operating system, but if there are a large number of clients, the speed on each will be very low.
Will you be charged for Internet distribution?
It depends on the terms of your tariff plan. Many modern plans include unlimited data, but some operators still charge for using the phone as a modem. Check the information in the operator’s personal account.
Why does the client phone connect, but says “No Internet access”?
Most likely, the donor phone does not have mobile data (bad signal, ran out of money) or airplane mode is turned on. Also check if there is a data transfer limit in the access point settings.