Smartphone iPhone 4S The iPhone 4S became a legendary device, largely thanks to its personal hotspot feature, which allowed users to turn their mobile internet into a fully-fledged Wi-Fi network. Despite being released over ten years ago, many users still use it as a backup phone, MP3 player, or navigation device, and the question of how to share Wi-Fi with an iPhone 4S remains relevant. The setup process isn't complicated, but owners of older operating system versions may encounter some issues. iOS may encounter certain nuances related to interface features and hardware limitations.
In this article, we'll cover in detail all available methods for setting up a wireless network, from the classic method using settings to alternative connection options if the standard protocol doesn't work. You'll learn how to properly configure security settings to prevent unauthorized access to your traffic, and what to do if the access point menu is simply missing from the system. Understanding the operating principles modem mode will help you effectively use the capabilities of your gadget even in modern conditions.
Before you begin setting up, make sure your mobile plan allows for tethering, as some providers may block this traffic or charge additional fees. It's also worth checking that your device has at least version iOS 9.3.6, which is the latest version available for this model, ensuring maximum compatibility with modern encryption protocols. If the basic requirements are met, you can proceed to activating the function.
Activating Personal Hotspot via iOS Settings
The most basic and convenient way to turn your smartphone into a router is to use the built-in system menu. First, unlock your device's screen and find the app icon. Settings, which is usually located on the home screen. Once you enter the menu, scroll down the list of options until you see the item responsible for cellular or personal connections, depending on your system's localization.
On devices with Russified firmware, the section in question is often called Cellular communications, within which you need to find a subsection Modem modeIf the menu is in English, look for the item Cellular, and then Personal HotspotIn some versions of iOS, this item may be located in the root settings menu immediately after Wi-Fi And Bluetooth, making it easier to access. Once you've navigated to the desired section, you'll see a toggle switch that you need to activate by sliding it to the right until it turns green.
After enabling this feature, the system may ask for confirmation to turn on Wi-Fi and Bluetooth if they were previously disabled, as these modules are necessary for signal transmission. A message will appear on the screen with your device's name, which will be visible to other devices when searching for networks, and the password for connecting. Password The default password is generated automatically, but you can change it to something more complex and memorable to make it easier for friends to connect or to secure your network.
⚠️ Note: When tethering mode is activated, a blue bar with the words "Tethering Mode" or an icon of two paper clips will appear at the top of the screen (in the status bar). This means your phone has started transmitting a signal, and other devices may be able to access it if you haven't changed the default password.
Configuring security settings and network name
The security of your personal hotspot depends directly on the password and encryption type you choose. By default, iPhone 4S uses a security protocol WPA2, which is considered secure enough for home use. However, the default password, consisting of a random string of numbers and letters, is difficult to remember, so it's recommended to change it to a combination that's easy to enter on connected devices but won't be obvious to others.
To change the network name that appears in the list of available connections for other users, you need to go to the menu Main, then select the item About this device and click on the line NameHere you can enter any name, for example, "iPhone_Alex_WiFi" or "MyMobileHotspot," which will make it easy to identify your network in a public place where there may be many similar devices.
Changing the password is done directly in the menu Modem modeClick on the field Wi-Fi password, delete the current value, and enter a new combination of at least 8 characters. The system will require that the password contain numbers, which is a requirement for the WPA2 protocol. After entering the new code, be sure to click Ready or Savefor the changes to take effect.
- 🔒 Use a combination of uppercase and lowercase letters and numbers to maximize traffic protection from hacking.
- 📱 Do not use your date of birth or simple sequences like "12345678" as a password.
- 🔄 Change your password regularly if you suspect that someone else may have accessed your network.
Alternative ways to share the Internet: USB and Bluetooth
If for some reason you can't share Wi-Fi with your iPhone 4s via the standard Wi-Fi module, or you want to save battery life, you can use a wired connection or Bluetooth. Connecting via USB cable (30-pin) is the most stable option, providing high data transfer speeds and simultaneous charging of the smartphone, which is critical for the old iPhone 4S battery.
To set up a USB modem, connect your smartphone to your computer using the original cable. On your computer (if you're using Windows), you may need to install drivers. iTunes, if they haven't already been installed. Once connected, a new network connection will appear in your computer's network settings, using the phone's internet connection. In this mode, the phone doesn't create a wireless network, but acts as an external network card.
Bluetooth is the least power-consuming but also the slowest connection option. It's suitable for transferring small amounts of data, such as checking email or messaging apps, but not for watching videos. To activate, you need to enable Bluetooth on both devices, pair them, and then select the option to connect to the internet via the iPhone's network in the Bluetooth settings on your computer or tablet.
☑️ Checking the USB modem connection
Troubleshooting the missing "Modem Mode" option
A fairly common issue is the absence of a "Modem Mode" option in the settings menu, which often confuses users. Most often, the problem stems from incorrect operator network settings or the absence of a valid APN (Access Point Name) profile. Without the correct APN settings, the system simply doesn't know which gateway to use for data transfer, and the tethering feature is hidden.
To correct this situation, you need to manually enter the APN settings. Follow the path Settings -> Cellular communications -> Cellular data networkIf this item is not present, it may be hidden and you will need to install a configuration profile from your operator or reset network settings. In the APN section for tethering mode (often labeled as Personal Hotspot or is simply located at the bottom of the list) you need to enter the data corresponding to your operator.
For example, for the MTS operator, you need to enter in the APN field internet.mts.ru, login and password - mtsFor Beeline - internet.beeline.ru, login and password - beelineFor Megafon - internet, login and password - gdataAfter entering the data, you must completely reboot the device by turning it off and on, after which the menu item should appear.
| Operator | APN (Access Point Name) | Username | Password |
|---|---|---|---|
| MTS | internet.mts.ru | mts | mts |
| Beeline | internet.beeline.ru | beeline | beeline |
| Megaphone | internet | gdata | gdata |
| Tele2 | internet.tele2.ru | (empty) | (empty) |
What should I do if my APN settings are not saved?
If the settings are reset after entering the data and rebooting, or the menu item doesn't appear, try removing the SIM card, wiping the contacts, and reinserting it. You can also try resetting the network settings via General -> Reset -> Reset Network Settings, but this will delete saved Wi-Fi passwords.
iPhone 4S limitations and technical features
When owning a ten-year-old device, it's important to understand its technical limitations. iPhone 4S Supports the 802.11 b/g/n Wi-Fi standard, which means it only operates in the 2.4 GHz band. This frequency range is heavily congested in apartment buildings, which can lead to an unstable connection and slow speeds, even if the cellular signal is excellent.
In addition, the processor A5The Wi-Fi hotspot installed in this model can become significantly hot when actively tethering. Extended use in hotspot mode, especially while simultaneously charging and using navigation, can lead to thermal throttling (reduced performance) or an emergency shutdown to protect the device's components. Therefore, it is recommended to remove the case when tethering.
Another important aspect is the iOS version. The latest available version is iOS 9.3.6 — has limited support for modern encryption protocols and security certificates. Some new devices (such as Windows 11 laptops or recent Android smartphones) may refuse to connect to the iPhone 4S network due to non-compliance with security standards.
⚠️ Note: Settings interfaces and menu item names may vary slightly depending on your regional firmware version and the specific iOS version (e.g., 9.0 vs. 9.3). If you don't see an option, check the official Apple documentation for your software version.
The Impact of Wi-Fi Sharing on Battery Life and Performance
Personal hotspot mode is one of the most resource-intensive processes on a mobile device. The iPhone 4S's Wi-Fi radio, when operating in Access Point mode, consumes significantly more power than when operating in client mode. This is due to the need to constantly broadcast control packets and maintain a connection with multiple devices simultaneously.
If you plan to use your phone as a router for an extended period, it's best to keep it connected to a power source. However, keep in mind that simultaneously charging and actively using the radio module causes the lithium-ion battery to heat up, accelerating its degradation. Old batteries, which already have a worn-out chemical structure, may swell or fail more quickly under such loads.
The smartphone's performance may also suffer when sharing. The iPhone 4S's 512MB of RAM may not be sufficient for background tasks if multiple devices are connected to the hotspot and downloading content. The system may force-close apps or experience slower interface response.
- 🔋 Remove the protective case to improve heat dissipation during long periods of modem use.
- 📉 Disable background app refresh and geolocation to reduce CPU load.
- 🔌 Use the original charger with a power of at least 1 Amp (preferably 2 A) to compensate for power consumption.
Frequently Asked Questions (FAQ)
Why don't connected devices have internet access even though Wi-Fi is connected?
The problem most likely lies with your carrier's APN settings or a lack of 3G/4G coverage in the current area. Check that the internet connection works on your iPhone without tethering. Also, make sure your SIM card has sufficient funds and that your data limit hasn't been reached.
Is it possible to share Wi-Fi from an iPhone 4S to a TV or set-top box?
Yes, you can. TVs and set-top boxes (Apple TV, Android TV) view the iPhone 4S as a regular wireless network. However, due to the phone's slow processor and the Wi-Fi N standard, watching high-definition (HD/4K) video may experience buffering.
How many devices can connect to an iPhone 4S hotspot at the same time?
Technically, iOS allows you to connect up to five devices simultaneously. However, for the A5 processor and the iPhone 4S's radio module, 1-2 devices is optimal. With more connections, internet speed will drop to a minimum, and the phone may overheat.
Do operators charge extra for tethering?
It depends on your data plan. Most modern unlimited plans allow you to share data within certain limits (usually 3 to 10 GB per month), after which the speed is throttled. Older, archived plans may have different terms, so it's recommended to check with your carrier.