Slow Internet on a smartphone Android is a problem that every second user faces. The reasons may lie both in the device settings and in the operating features of mobile networks or routers. In this article we will examine 15 proven methods increase connection speed, from basic to advanced, taking into account the features of modern versions Android 14/15 and new communication standards 5G SA/NSA.

It is important to understand that Internet speed depends on three key factors: hardware capabilities of the smartphone (modem, antennas), software settings (firmware, applications) and external conditions (network coverage, base station load). We will focus on those aspects that can be optimized independently, without resorting to the services of service centers.

Before proceeding with the settings, check the current speed using services like Speedtest by Ookla or nPerf. Run the test 2-3 times in different conditions (at home, on the street, with Wi-Fi and mobile data) - this will help identify bottlenecks. Write down the results: they will be useful for assessing the effectiveness of each method.

📊 What type of Internet do you most often use on your smartphone?
Mobile only (4G/5G)
Wi-Fi only
Both options are about the same
Depends on the situation

1. Optimizing mobile data settings (4G/5G)

Modern smartphones support several mobile network operating modes, but the default is often not the fastest one. The first thing to do is manually set the priority network type. To do this:

  1. Go to Settings → SIM cards and mobile networks → The name of your SIM card → Network type.
  2. Select 5G/4G/3G/2G (auto) or Only 5G/4G (if the coverage is stable).
  3. Disable the option Switch to 3G to save battery (if yes).

On some devices (for example, Samsung Galaxy S23+ or Xiaomi 14 Pro) additional modem parameters are available. To activate them:

  1. Enter the code in the phone application ##4636##.
  2. Go to the tab Phone information.
  3. In the section Setting the network type select LTE/NR (5G) or LTE only.
⚠️ Attention: Changing the hidden settings of the modem can lead to unstable network operation. If after changing the parameters the connection is lost, reset the network settings in Settings → System → Reset → Reset Wi-Fi, mobile data and Bluetooth settings.

Another effective trick - forced connection to the 5 GHz band (if your operator supports it). To do this:

  • 📱 Install the application NetMonster or Network Cell Info Lite.
  • 🔍 Check what frequencies are available in your region (for example, n78 for 5G or B7 for 4G).
  • 🛠️ In the engineering menu (code ##4636##), manually set priority frequencies.

Mode "4G/5G only" is selected|Traffic saving in the background is disabled|All supported ones are activated frequencies|Checked operator coverage in your region-->

2. Wi-Fi acceleration: from channel selection to router firmware

If the problem with slow Internet occurs only when connected to Wi-Fi, check channel and bandwidth your router. Many budget models operate on overloaded channels by default (for example, 6 or 11 in the 2.4 GHz band), which leads to interference.

How to optimize:

  • 📶 Use an application WiFi Analyzer (or built-in analyzer in Mi WiFi to Xiaomito find the least busy channel.
  • 🔧 In the router settings (usually at 192.168.0.1 or 192.168.1.1) change the channel to a free one (for example, 1, 13 or 40 for 5 GHz).
  • 🚀 Set the channel width 40 MHz for 5 GHz or 20 MHz for 2.4 GHz (wider is not always faster due to interference).
  • 🔒 Enable WPA3 instead of WPA2 (if supported) - this reduces delays during authorization.

For advanced users: if your router supports firmware from third-party developers (for example, DD-WRT or OpenWRT), their installation can increase speed by 20–30% by optimizing packet processing. However, this requires technical skill and may void the warranty.

⚠️ Attention: Not all routers officially support alternative firmware. Before installation, check the compatibility of the model on the project website (for example, dd-wrt.com) and create a backup copy of the current firmware.

Another nuance - DNS servers. By default, ISPs often use slow DNS, which increases response time. Try changing them to:

  • 🌍 1.1.1.1 (Cloudflare) - low latency, high speed.
  • 🌐 8.8.8.8 (Google DNS) - reliable, but sometimes blocked.
  • 🔒 9.9.9.9 (Quad9) - with malicious filtering sites.

To change DNS to Android:

  1. Go to Settings → Networks and Internet → Wi-Fi.
  2. Click on the name of your network → Change network → Additional settings → IP settings.
  3. Select Static and enter the DNS addresses in the appropriate fields.
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If after changing the DNS some sites no longer open, return settings to "Default" values or try another DNS server.

3. Clearing the system of background processes and cache

One ​​of the common reasons for slow Internet is background applications, which consume traffic and processor resources. For example, Facebook, Instagram or TikTok can download content in the background, even when you are not using them.

How to fix this:

  • 🛑 Disable auto-downloading of content: in the settings For each application, find options like Autoplay video or Preload and deactivate them.
  • 🔄 Limit background activity: Settings → Applications → [Select an application] → Battery → Background activity → Limit.
  • 🗑️ Clear the cache: Settings → Storage → Cached data → Clean.
  • ⚡ Use Greenify or Brevent to "freeze" unnecessary applications (rights required ADB).

Pay special attention system servicessuch as Google Play Services or Android System Intelligence. They often consume traffic for synchronization. To reduce their impact:

  1. Go to Settings → Accounts → Google → Synchronization account.
  2. Disable synchronization for unnecessary services (for example, Google Play Music or Google Fit).
  3. B Settings → Google → Advertising disable Personalized advertising - this will reduce background requests.

If after clearing the cache the speed has not increased, check usage traffic by application:

  1. Settings → Networks and Internet → Data transfer → Mobile traffic usage.
  2. Sort applications by the amount of traffic consumed.
  3. Limit background traffic for the most "voracious" (click on the application → Background mode).
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Clearing the cache and limiting background processes can increase Internet speed by 15–40%, especially on devices with 4–6 GB of RAM.

4. Hardware methods: from antennas to cooling

If software methods do not help, the problem may lie in hardware limitationsModern smartphones are equipped with several antennas for receiving signals, but their operation depends on external conditions.

5 ways to improve signal reception:

  • 📶 Smartphone position: Hold the device vertically - antennas are usually located at the top and bottom of the case. Avoid blocking the area near the camera with your hand (the 5G module is often located there).
  • 🧊 Overheating: At temperatures above 40°C, the modem may artificially limit the speed. Use cases with heat dissipation or take breaks from heavy use.
  • 🔋 Airplane mode: Turn on and off Airplane mode for 10 seconds - this will reset the connection to the base station and may connect you to a less busy one.
  • 📡 Signal booster: For home use, a repeater (for example, Huawei 4G Signal Booster) is suitable, and for trips - an external antenna with a magnetic mount (compatible with your smartphone model).
  • 🔌 Charging: When the charge level is below 15%, some devices (Samsung Exynos, MediaTek Dimensity) reduce the performance of the modem. Connect the charger to restore full speed.

On smartphones with chipsets Qualcomm Snapdragon 8 Gen 2/3 and MediaTek Dimensity 9000/9200 in the engineering menu (##4636##), an option is available Force LTE CA (carrier aggregation). Enabling it can increase 4G speeds by 30–50%, but requires a stable signal.

If you are often in areas with poor coverage, consider buying a smartphone with external antenna connectors (for example, Samsung Galaxy XCover Pro or CAT S75). They allow you to connect directional antennas to strengthen the signal.

5. Alternative firmware and kernels for advanced users

Standard firmware from manufacturers often contain restrictions on modem operation related to energy saving or operator requirements. Custom firmware (for example, LineageOS, Pixel Experience) and modified kernels (for example, Kirin Kernel for Huawei) can remove these restrictions.

What gives flashing:

  • 🚀 Removing bloat (pre-installed applications) that consumes traffic.
  • 🔧 Optimized modem drivers with support for additional frequencies.
  • ⚡ Ability to fine-tune network parameters via Magisk-modules (for example Network Signal Guru).

Example: on Xiaomi Redmi Note 12 Pro+ after installation Pixel Experience users note an increase in 4G speed by 25–35% due to the activation of previously blocked bands n77 and n78.

⚠️ Attention: Installing custom firmware requires unlocking the bootloader, which resets the device to factory settings and may void the warranty. Before installing the firmware, make sure that the selected version is compatible with your smartphone model.

For those who are not ready for a complete flashing, there is a safer option - modules for Magisk:

  • 📶 Network Signal Guru —allows you to manually select a base station.
  • 🔗 Displax’s modem tweaks —optimizes the modem parameters for a specific operator.
  • 🛡️ Universal SafetyNet Fix —corrects security errors that may block access to some networks.

Instructions for installing the module:

1. Install Magisk (root access required).

2. Download the module in .zip format (for example, from the XDA forum).


3. In Magisk, click "Modules" → "Install from repository" → select the file.


4. Reboot the device.

Risks of flashing

The wrong firmware can turn your smartphone into a “brick” (inoperable device). Always check compatibility with the model and version of the chipset. For example, the firmware for Snapdragon will not be suitable for the version with Exynos. The smartphone models are the same (like the Samsung Galaxy S23).

6. Checking for viruses and malware

Malware can not only steal data, but also use your traffic mining cryptocurrency, sending spam, or participating in DDoS attacks. Signs of infection:

  • 📉 A sharp increase in traffic consumption for no apparent reason.
  • 🔋 Rapid battery drain even in standby mode.
  • 📱 Heating of the device when there are no active devices tasks.
  • 🚫 Blocking access to certain sites or redirecting to suspicious pages.

How to scan and clean your device:

  1. Install an antivirus with a high rating (for example, Bitdefender Mobile Security or Kaspersky Internet Security).
  2. Run a full system scan (not a quick one!).
  3. Check the list of installed applications for suspicious ones (for example, with names like System Update, Flash Player or Cleaner Pro).
  4. B Settings → Applications sort apps by installation date - viruses are often are disguised as recent updates.

If the antivirus did not find anything, but suspicions remain, reset to factory settings:

  1. Create a backup copy of important data.
  2. Go to Settings → System → Reset → Delete all data.
  3. After resetting, do not restore data from backup - it is better to install applications again.
⚠️ Attention: Some viruses (for example, xHelper or Shuanet) can be saved even after a reset if they have flashed themselves to the system partition. In this case, only flashing will help.

7. Optimizing the browser and applications to save traffic

Even with high connection speeds, some browsers and applications can artificially limit it. For example, Google Chrome By default, it uses data compression, which speeds up page loading on slow connections, but can reduce speed on fast connections.

Browser settings for maximum speed:

  • 🌐 B Chrome: Settings → Data saving → Disable.
  • 🦊 In Firefox: Settings → General → Performance → Enable hardware acceleration.
  • 🛡️ In Brave: Settings → Brave Shields → Disable script blocking (for test purposes).
  • 🔍 In Samsung Internet: Settings → Quick access → Disable "Light mode".

For applications that actively use the Internet (for example, YouTube, Netflix, Twitch), adjust content quality:

  • 🎥 In YouTube: Settings → Playback quality → High (Wi-Fi only).
  • 📺 In Netflix: Application settings → Video quality → Auto (or Maximum).
  • 🎮 In Twitch: Settings → Quality → Source (if the connection is stable).

If you often watch videos on the road, use pre-download:

  • 📥 In YouTube Premium you can download videos for offline viewing.
  • 🎧 In Spotify or Apple Music set up automatic downloading of playlists via Wi-Fi.
  • 📚 In Google Play Books or Kindle download books in advance.

Comparison of Internet speedup methods

To choose the most effective method, compare methods according to key parameters:

Method Complexity Potential speed increase Risks Root required?
Change network type (4G/5G) Low 10–30% No No
Wi-Fi optimization (channel, DNS) Medium 20–50% No No
Clearing cache and background processes Low 15–40% No No
Custom firmware High 30–70% Loss of warranty, risk of "bricking" Yes
External antenna Average 40–100% Additional costs No

As can be seen from the table, the greatest increase is provided by methods that require hardware changes or deep re-flashing. However, for most users, a combination of software settings (changing DNS, optimizing Wi-Fi, clearing the cache) is enough, which give a total increase of up to 50–60% without risks.

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The best results are achieved by combining several methods. For example, changing DNS + optimizing Wi-Fi + cleaning background processes can increase speed by 70-80% compared to factory settings.

FAQ: Frequently asked questions about Internet speed on Android

Why is the 5G speed on my smartphone lower than 4G?

This can happen due to several reasons reasons:

  1. Insufficient 5G coverage —if you are on the border of the coverage area, the smartphone may “cling” to a weak 5G signal instead of a stable 4G.
  2. Operator restrictions —some tariffs artificially limit 5G speed (check the conditions in your personal account).
  3. Problems with the modem —on some chipsets (for example, Exynos 2200) 5G drivers are unstable. Try updating the firmware.
  4. Carrier aggregation — 4G can be faster by aggregating multiple frequencies (LTE-A), while 5G operates on a single frequency.

Solution: Manually switch to 4G in network settings or contact your operator to check coverage.

Is it possible to increase Internet speed without root access?

Yes, most of the methods in this article do not require root access. Here's what you can do without unlocking the bootloader:

  • Change network type (4G/5G) and DNS.
  • Optimize Wi-Fi settings (channel, bandwidth).
  • Clear cache and limit background processes.
  • Update the firmware via the standard update menu.
  • Use external antennas (if the smartphone supports it).

root access will only be needed to install custom firmware or some Magiskmodules.

How to check, does not limit is the operator using my speed?

To find out if the operator is throttling (artificial speed limiting), follow these steps:

  1. Run a speed test on Speedtest.net or nPerf.
  2. Connect to a VPN (for example, ProtonVPN or Warp from Cloudflare) and repeat the test.
  3. Compare the results:
    • If the speed with VPN is higher, the operator limits the traffic.
    • If the speed is the same - there are no restrictions (or they apply to all traffic).
  • Check the tariff conditions in your personal account - some operators limit the speed after exhausting high-speed traffic (for example, "up to 100 Mbit/s after 20 GB").

    • If throttling is confirmed, contact the operator or consider changing the tariff.

    Does disabling IPv6 help to increase speed?

    Disabling IPv6 can help in rare cases, but usually does not provide a significant increase. When it makes sense:

    • If your operator or provider does not support IPv6 well, this can cause connection delays.
    • Some older routers (pre-2018) do not process IPv6 traffic correctly, which leads to packet loss.
    • In corporate networks, IPv6 is sometimes blocked by policies security.

    How to disable IPv6 on Android:

    1. Go to Settings → Networks and Internet → Wi-Fi.
    2. Click on the name of your network → Change network → Additional settings → IP settings.
    3. Select IPv4 instead IPv4/IPv6.

    For mobile data, disabling IPv6 is only possible through the engineering menu or ADB-commands.

    ⚠️ Warning: Disabling IPv6 may lead to problems with accessing some sites (for example, Google or Facebook actively use IPv6).

    Which applications are best to use for speed testing?

    To accurately measure Internet speed, the following applications are recommended:

    • Speedtest by Ookla —the most popular, but sometimes underestimates the results due to servers overloaded with users.
    • nPerf —tests not only speed, but also connection stability, latency, and streaming quality.
    • Fast.com (from Netflix) - specializes in measuring speed for streaming video.
    • Meteo Speed Test - shows detailed information about the connection (network type, operator, IP address).
    • OpenSignal - analyzes network coverage in your area and compares with other operators.

    Tips for accurate testing:

    1. Before the test, close all background applications.
    2. Connect to a 5G or Wi-Fi network (depending on what you are testing).
    3. Run the test 3-5 times and average the results.
    4. Compare performance with other devices on the same network (for example, a laptop or tablet).