A situation where you have a modern smartphone with an active data plan and a tablet Samsung Galaxy TabA situation where a tablet is left without network access is quite common. This can happen if the SIM card fails, the account is empty, or you're in an area with poor signal where the tablet simply can't connect. In such cases, it becomes necessary to use the smartphone as a modem to provide internet access to the device.
Fortunately, the operating system Android offers several built-in connection transfer mechanisms. You don't need a working SIM card in your tablet if your phone is already connected to the internet. The key is to properly configure the communication channel between the devices, choosing the most suitable method: a classic hotspot, a USB cable, or Bluetooth.
In this article, we'll take a detailed look at all available methods, their advantages and disadvantages. You'll learn how to minimize data transfer latency and which power-saving settings can hinder network stability. We'll also cover security issues to prevent your data from being accessed by unauthorized individuals.
Using tethering via Wi-Fi Hotspot
The most obvious and popular method is to create a hotspot. Your phone acts as a router, generating a wireless network to which the tablet connects. To use this method, your smartphone must have mobile data enabled or be connected to another Wi-Fi network with internet access (using the Wi-Fi Repeater feature, available in newer versions of Android).
On the device Samsung The setup process is standardized. You need to pull down the notification shade and find the "Access Point" icon or follow the path Settings → Connections → Mobile hotspot & tetheringIt's important to set a strong password here, as open networks are vulnerable to traffic interception.
⚠️ Please note: Hotspot mode significantly increases your smartphone's battery drain. If you plan to use it for extended periods, it's best to connect your phone to a power bank or wall outlet to avoid unexpected shutdowns.
After activating the mode on your phone, take your tablet without a SIM card. Go to Wi-Fi settings, find your network name (SSID), and enter the password. Once connected, the Wi-Fi icon in the tablet's status bar will change, confirming internet access.
It's worth noting that the phone may become warm when using this method. This is a normal physical phenomenon when the radio module is actively operating. If the device becomes too hot, the system may automatically limit the speed or disable the access point to protect its components.
Connecting via USB cable (USB Tethering)
If you need maximum stability and speed while simultaneously charging your tablet, use a wired connection. This method is often overlooked, but it provides better performance, especially when downloading large files or watching high-definition videos.
First, make sure you have a high-quality cable that supports data transfer, not just charging. Connect your smartphone to the tablet. On your phone, go to the menu. Settings → Connections → Mobile hotspot & tethering and activate the switch USB modem.
☑️ Check before connecting USB
The tablet should automatically detect the new network connection. Unlike Wi-Fi, there's no need to enter passwords, eliminating typing errors. The connection is established instantly after activating the feature on the phone.
However, there is a nuance: not all tablets Samsung support internet access via USB port, especially older models or versions without support USB OTG In host mode. If you can't access the internet on your tablet after enabling this feature on your phone, check the specifications of your tablet model.
Transferring data via Bluetooth modem
An option for those who want to conserve battery life and don't require high speed. A Bluetooth modem consumes significantly less power than a Wi-Fi module, but the data transfer speed will be limited by the Bluetooth protocol, which may not be sufficient for video streaming.
The setup process is more complex than with Wi-Fi. First, you need to pair the devices. Turn on Bluetooth on both devices, find each other in the list of available devices, and confirm the pairing with a code. Then, enable the "Modification" function in the modem menu on your phone. Bluetooth modem.
Once paired, go to the Bluetooth settings on your tablet, tap the gear icon next to your phone's name, and check "Internet Access." Only then will the traffic flow through the Bluetooth channel.
This method is convenient in emergency situations, such as when you need to send a text message or quick email but your phone's battery is running low. However, it's not suitable for full-fledged internet browsing due to its low bandwidth limit.
Using Smart View and Wi-Fi Direct
Many users confuse these technologies, but they can be useful for organizing a local network. Although Wi-Fi Direct Primarily designed for file transfer without a router, some modem applications (from third-party developers) use this principle to create a tunnel.
You can't turn pure Wi-Fi Direct into an Internet gateway using standard Android tools, but you can use the function Smart View For screen mirroring, if the goal is to show content from a phone on a tablet. However, this method is not a native solution for distributing internet traffic.
Is it possible to share Wi-Fi if the phone is also on Wi-Fi?
Yes, modern Samsung smartphones with Android 10 and above can simultaneously receive and broadcast Wi-Fi. This feature is called Wi-Fi Share. However, speed will be reduced because a single radio module cannot operate on both frequencies simultaneously with full efficiency.
If your tablet is very old and doesn't support modern encryption standards, it may not recognize your new phone's hotspot. In this case, try changing the frequency range from 5 GHz to 2.4 GHz in your phone's hotspot settings and lowering the security standard to WPA2-Personal.
Setting up APN access points for operators
Sometimes a phone is connected to the network, but the internet connection isn't shared with other devices. A common cause is incorrect access point (APN) settings. Carriers require specific parameters for tethering to work.
Go to Settings → Connections → Mobile networks → Access point names (APN). Select your operator. Make sure the APN type field is set to default,supl,dunAdding a parameter dun (Dial-Up Networking) often solves the problem of distribution blocking by the operator.
| Parameter | Meaning | Description |
|---|---|---|
| Name | Internet | Custom profile name |
| APN | internet | Depends on the operator (MTS, Beeline, etc.) |
| Type | default,supl,dun | Critical for internet distribution |
| Protocol | IPv4/IPv6 | Recommended standard |
After changing the settings, be sure to reboot your phone. If your carrier blocks data sharing at the network level (TTL filter), changing the APN may not help, and more complex methods will be required, such as changing the TTL under root access, which is beyond the scope of the standard instructions.
⚠️ Warning: Changing APN settings may prevent you from connecting to the mobile network. Take a screenshot of the original settings before editing so you can easily restore them.
Solving connection and energy saving problems
Systems One UI Samsung devices manage power consumption aggressively. If you notice that your hotspot turns off automatically when your phone's screen goes dark, it's because power saving mode is activated.
To fix this, go to Settings → Device Care → Battery → Battery Usage LimitsFind "Wi-Fi Hotspot" or "Tethering" in the list and select "Unlimited." This will allow the system to keep the module active even in the background.
Also, check that the "Date & Time" mode isn't enabled automatically on your tablet. Time missync between devices can lead to security certificate errors and connection blockages.
If all else fails, reset the network settings on both devices. This will delete saved Wi-Fi passwords and Bluetooth pairings, but often resolves software and driver conflicts.
Security and traffic limits
By sharing your internet connection, you become your tablet's internet provider. Make sure your hotspot settings have a strong password. Use encryption. WPA3 (if supported by both devices) is preferred over older standards.
Monitor your data usage. High-quality video on a tablet with a large screen uses significantly more megabytes than on a small phone display. Set a data limit in your hotspot settings to avoid unexpectedly running into data losses.
Keep in mind that when using public Wi-Fi networks to share data with your tablet, all of the tablet's traffic goes through your phone. If your phone uses a secure connection, your tablet will also be protected, but if you're sharing a 4G/5G mobile connection, the risks are minimal.
Why doesn't my Samsung tablet see my phone's hotspot?
Most often, the problem stems from frequency band incompatibility. If your phone only broadcasts on the 5 GHz band, but your older tablet only supports 2.4 GHz, it simply won't see the network. Switch the band in your access point settings to "2.4 GHz" or "Auto."
Is it possible to share the Internet if the phone also doesn’t have a SIM card?
Yes, if the phone is connected to a Wi-Fi network with internet access. This feature is called "Wi-Fi Repeater" or "Shared Wi-Fi." The phone receives the signal and retransmits it to the tablet. However, speed may be lower due to packet loss during double conversion.
How to increase USB upload speed?
Use an original Samsung cable that supports USB 3.0. Also, make sure the USB port on your tablet is clean. In rare cases, enabling USB debugging may help, although this isn't a strict requirement for the modem.
Does the operator charge an additional fee for internet distribution?
It depends on the plan. Many modern "Unlimited" plans have a hidden tethering limit, after which the speed is throttled to 64-128 kbps. Check the terms of your plan in your operator account.