If 5G is not working on your phone, the problem is usually related to 5G coverage, your mobile plan, SIM/eSIM activation, phone compatibility, network settings, or a temporary connection problem.
Start with the quick checks below before resetting your network settings.
Quick Fix: 5G Not Working
Try these in order:
- Turn Wi-Fi off so you can see the cellular connection.
- Make sure Mobile Data/Cellular Data is turned on.
- Turn Airplane Mode on for about 10 seconds, then turn it off.
- Restart your phone.
- Check whether your current location has 5G coverage.
- Confirm that your mobile plan includes 5G.
- Make sure the correct SIM/eSIM is selected for mobile data.
- Check that your phone’s network mode allows 5G.
- Temporarily turn off Battery Saver or Low Power Mode.
- Install any available phone software update.
If 5G still does not appear, use the section below that matches what you see.
Table of Contents
What Exactly Is Wrong With Your 5G?
| What you see | Most likely areas to check |
|---|---|
| 5G never appears | Coverage, plan, compatibility, SIM, network mode |
| 5G worked before but suddenly disappeared | Network registration, outage, coverage, settings |
| Phone stays on LTE | 5G setting, coverage, carrier configuration |
| 5G option is missing | Phone/carrier compatibility, SIM, software |
| 5G works outside but not indoors | Signal and building conditions |
| 5G icon appears but internet does not work | Mobile-data, APN, VPN, DNS, or carrier problem |
| 5G works but is very slow | Congestion, signal quality, network conditions |
| 5G keeps switching between 5G and LTE | Coverage, signal, network conditions, or automatic network selection |
A 5G icon does not necessarily mean the connection will always be faster than LTE. The actual experience depends on the carrier network, signal conditions, congestion, and the type of 5G available in your area.
1. Check 5G Coverage and Your Mobile Plan
This is the first thing to check if your phone has never connected to 5G.
Your phone needs all of these:
- A 5G-compatible phone
- A carrier that supports 5G
- A mobile plan that allows 5G
- An activated SIM or eSIM
- 5G coverage where you are using the phone
- Carrier support for your exact phone model or regional variant
What to do
Open your carrier’s official website or app and check:
- 5G coverage in your location
- Whether your plan includes 5G
- Whether there is a current outage
- Whether your SIM/eSIM is 5G-compatible
- Whether your exact phone model is supported
If another person using the same carrier has 5G in the same location, that is useful evidence that coverage is available.
If nobody using that carrier has 5G there, changing phone settings is unlikely to solve the problem.
2. Make Sure Your Phone Actually Supports Your Carrier’s 5G
A phone can be advertised as a “5G phone” without supporting every carrier’s 5G network.
This can happen with:
- Imported phones
- Different regional versions
- Carrier-specific models
- Unlocked phones
- Phones originally sold in another country
Check the exact model
On Android:
Settings → About phone
On iPhone:
Settings → General → About
Look for the full model information.
Then check the manufacturer’s specifications and your carrier’s compatibility information.
Do not assume that a phone with “5G” in its product name will automatically work with every 5G network.
3. Turn Mobile Data On and Select the Correct SIM
This is especially important on dual-SIM phones.
Your phone may have 5G capability while the wrong SIM is selected for mobile data.
Android
Open:
Settings → Network & internet / Connections / SIMs / Mobile network
The exact menu name varies by manufacturer.
Check that:
- The SIM is enabled
- Mobile data is enabled
- The intended SIM is selected for mobile data
iPhone
Open:
Settings → Cellular
If you use Dual SIM, select the line you want to use for cellular data and make sure that line is active.
Then turn Wi-Fi off and check the cellular indicator.
4. Check the Preferred Network Mode on Android
If your Android phone stays on LTE even though 5G should be available, check the preferred network type.
The wording varies between manufacturers.
Look under something similar to:
Settings → Network & internet → SIMs → Preferred network type
or:
Settings → Connections → Mobile networks → Network mode
Choose an option that includes 5G, such as:
- 5G/LTE/3G/2G
- 5G preferred
- 5G/4G/3G/2G
Do not choose LTE-only if you want the phone to use 5G.
Samsung Galaxy
On supported Galaxy phones, the network mode is generally found under:
Settings → Connections → Mobile networks → Network mode
Choose a mode that includes 5G.
The exact wording can differ depending on the Galaxy model, carrier, region, and software version.
Important
Do not use unofficial apps or hidden menus to force a 5G-only mode.
A normal automatic 5G/LTE mode is usually preferable because the phone can fall back to LTE when 5G is unavailable.
5. Check 5G Settings on iPhone
If you use an iPhone 12 or newer model that supports 5G, check the Voice & Data setting.
Open:
Settings → Cellular → Cellular Data Options → Voice & Data
Depending on your carrier and iPhone configuration, you may see:
- 5G Auto
- 5G On
- LTE
5G Auto
The iPhone can automatically switch between 5G and LTE depending on conditions.
This is normally the better everyday option.
5G On
The iPhone attempts to use 5G whenever it is available.
This can use more battery than 5G Auto.
LTE
The phone is configured to use LTE rather than 5G.
If you are troubleshooting missing 5G, do not leave the setting on LTE.
6. Turn Airplane Mode On and Off
If 5G worked previously and suddenly disappeared, try refreshing the cellular connection.
Steps
- Turn Wi-Fi off.
- Turn Airplane Mode on.
- Wait about 10 seconds.
- Turn Airplane Mode off.
- Wait for the signal bars and carrier name to return.
- Check whether 5G appears.
If it does not:
- Turn the phone completely off.
- Wait about 30 seconds.
- Turn it back on.
- Test the connection again.
This can resolve a temporary network-registration problem.
If 5G returns after doing this, it does not necessarily prove that the phone itself was defective. The interruption could have been caused by a temporary network or registration condition.
7. Temporarily Turn Off Battery Saver
Some phones can change cellular behavior while power-saving features are active.
Android
Temporarily turn off:
Battery Saver / Power Saving Mode
Then test the mobile connection again.
iPhone
Temporarily turn off:
Settings → Battery → Low Power Mode
Then check whether 5G becomes available.
If 5G returns after disabling the power-saving feature, check your phone model’s documentation because 5G behavior under power-saving modes varies between devices.
8. Check for a SIM or eSIM Problem
A SIM or eSIM issue can look like a phone setting problem.
This is more suspicious when:
- 5G stopped working after changing SIM cards
- 5G disappeared after switching carriers
- The phone was recently activated
- The same SIM works differently in another phone
- Calls or mobile data are also behaving strangely
- The carrier says the account is not provisioned correctly
What to test
If possible, compare:
Your SIM + your phone
with:
Your SIM + another compatible 5G phone
Or compare:
Another known-working SIM + your phone
These comparisons can help identify whether the problem follows the SIM or the phone.
If your carrier says your account or SIM is not provisioned for 5G, changing network settings is unlikely to fix it.
9. Install Phone and Carrier Software Updates
Check for available software updates.
Android
Look under:
Settings → System → Software update
The location varies by manufacturer.
iPhone
Go to:
Settings → General → Software Update
Install an available update if appropriate for your device.
Software and carrier configuration updates can affect cellular-network compatibility and behavior.
10. Reset Network Settings
Use this only after the simpler checks above fail.
A network reset can remove saved network configuration, so understand what you are resetting before using it.
iPhone
Go to:
Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings
This is different from Erase All Content and Settings.
A network reset does not factory-reset the entire iPhone.
Android
The exact path varies by manufacturer.
Look under:
Settings → System → Reset options
or search Settings for:
Reset Wi-Fi, mobile & Bluetooth
or:
Reset network settings
After the reset, restart the phone and test 5G again.
You may need to reconnect to Wi-Fi networks afterward.
When 5G Works Outside but Not Inside
If 5G works outdoors but changes to LTE inside a building, the problem may be related to signal conditions rather than a broken 5G setting.
Try:
- Moving near a window
- Going outside
- Testing another nearby location
- Comparing the connection at different times
- Checking whether another phone on the same carrier also loses 5G indoors
Do not assume that LTE appearing indoors means 5G is broken.
The phone may be selecting LTE because it provides a more usable connection in that location.
When the Phone Shows 5G but the Internet Does Not Work
This is a different problem.
If you see the 5G icon but websites and apps cannot access the internet, the phone may already be connected to the 5G network.
Instead, investigate the mobile-data connection.
Check:
- Mobile data is enabled
- The correct SIM is selected
- Your data allowance has not been exhausted
- The carrier is not experiencing an outage
- APN settings have not been changed incorrectly
- VPN is not interfering
- Private DNS is not causing the problem
- The carrier account is properly provisioned
Do not change the APN just because the phone is not showing 5G.
APN settings primarily concern the mobile-data connection. Use the APN values supplied by your carrier rather than copying random values from the internet.
When 5G Is Connected but Very Slow
If the phone shows 5G and the internet works, but the connection is slow, you have a different troubleshooting problem.
Possible causes include:
- Network congestion
- Weak signal
- Indoor obstruction
- Distance from the cell site
- Local network conditions
- The type of 5G available in your area
- Carrier traffic management
Test the phone in another location before changing advanced settings.
If 5G is consistently slow while LTE performs better, compare both connections in the same location and at approximately the same time.
For this problem, see our guide on slow mobile internet on a phone.
When 5G Keeps Switching Between 5G and LTE
A phone changing between 5G and LTE does not automatically mean something is broken.
The phone may switch networks because:
- 5G coverage is weak
- You are moving between coverage areas
- Indoor signal conditions change
- The carrier’s network is managing connections
- Automatic network selection is enabled
- LTE currently provides a better usable connection
First test the phone in a known 5G coverage area.
If another phone using the same carrier remains on 5G in the same location while yours does not, investigate the phone, SIM, plan, and compatibility.
When the 5G Option Is Missing From Settings
If your phone should support 5G but there is no 5G option at all, check these first:
- Confirm the exact phone model.
- Confirm that the model supports 5G.
- Confirm that your carrier supports 5G.
- Confirm that your plan includes 5G.
- Check the SIM/eSIM.
- Install available software updates.
- Confirm that the phone is not carrier-locked to another network.
- Ask the carrier whether your exact model and IMEI are supported.
If the carrier does not support the device variant, repeatedly changing settings is unlikely to add 5G support.
How to Tell Whether the Problem Is the Phone or the Network
This simple comparison can save a lot of time.
Test 1: Same carrier, another phone
Use another compatible 5G phone with the same carrier in the same location.
Other phone gets 5G → your phone, SIM, or account becomes more suspicious.
Other phone also stays on LTE → coverage or carrier conditions become more likely.
Test 2: Your SIM in another compatible phone
If your SIM gets 5G in another supported phone, the SIM/account is less likely to be the problem.
Test 3: Another known-working 5G SIM in your phone
If another compatible SIM also fails to get 5G, investigate your phone’s compatibility, settings, software, or hardware.
These tests are more useful than repeatedly changing random settings.
When to Contact Your Carrier
Contact your carrier when:
- Your plan should include 5G but the account does not connect
- Your SIM/eSIM was recently changed
- 5G stopped after a plan or account change
- The carrier reports an outage
- Your exact phone model is unclear to the carrier
- The carrier needs to activate or reprovision 5G
- Other compatible phones on the same network work normally but yours does not
Ask the carrier to verify:
5G plan eligibility + SIM/eSIM activation + account provisioning + device compatibility + local coverage/outage status.
Should You Factory Reset the Phone?
Usually, no.
A factory reset should not be your first fix for missing 5G.
Before considering a factory reset, check:
- Coverage
- Plan
- SIM/eSIM
- Phone compatibility
- Network mode
- Mobile data
- Software updates
- Network settings
A factory reset is a much more disruptive step and may not solve a carrier, coverage, SIM, or account-provisioning problem.
Frequently Asked Questions
Why does my phone show LTE instead of 5G?
The phone may be outside 5G coverage, using a network mode that does not include 5G, experiencing weak 5G signal, or using a carrier plan/SIM that is not provisioned for 5G. Automatic network selection can also make the phone use LTE when conditions favor it.
Why is there no 5G option in my settings?
The option may be unavailable because of the phone model, carrier, region, SIM/eSIM, software, or carrier configuration. Check the exact model and ask your carrier whether it is supported.
Does Battery Saver turn off 5G?
It can affect 5G behavior on some phones. Temporarily disable Battery Saver or Low Power Mode and test again. The exact behavior depends on the device and software.
Can an old SIM prevent 5G?
It can, depending on the carrier and SIM. Ask your carrier whether your SIM is compatible with its 5G service and whether the account is correctly provisioned.
Why does 5G work outside but not inside?
Indoor walls, windows, building materials, and local signal conditions can affect cellular connectivity. Test the phone outdoors or in another known 5G location before assuming the phone is defective.
Why does my phone show 5G but have no internet?
The phone may be connected to the 5G network while mobile data itself is not working. Check mobile data, the active SIM, account status, APN configuration, VPN/Private DNS, and carrier outages.
Should I use 5G On or 5G Auto on iPhone?
5G Auto allows the iPhone to switch between 5G and LTE based on conditions and can help reduce battery usage. 5G On keeps 5G enabled whenever available but can use more battery.
Will resetting network settings delete my photos?
A network reset is not the same as erasing the phone. However, it does remove network-related settings such as saved Wi-Fi connections and other network configuration.
Is 5G supposed to be faster than LTE all the time?
No. Actual speed depends on coverage, signal quality, network congestion, carrier configuration, and the type of 5G available.
Related Guides
- APN settings problems
- LTE not working on Android
- Weak or no phone signal
- Mobile data connected but no internet
- Slow mobile internet on phone
- Mobile Data Keeps Disconnecting
- SIM Card Detected but No Signal
Official Sources
Official sources checked: July 26, 2026
Google Pixel Phone Help
Page: Fix mobile connectivity issues
Direct verified URL: https://support.google.com/pixelphone/answer/14116080?hl=en
URL status: Verified accessible on July 26, 2026
Supports:
- Confirming phone and carrier 5G compatibility
- Turning on Mobile data and the active SIM
- Selecting a preferred network type
- Checking coverage and signal
- Toggling Airplane Mode
- Resetting mobile-network settings
- Contacting the carrier about outages and plan changes
Scope limitation:
The exact menu paths apply to supported Google Pixel phones. Other Android manufacturers may use different labels and settings.
Apple Support Philippines
Page: Use 5G with your iPhone
Direct verified URL: https://support.apple.com/en-ph/108383
URL status: Verified accessible on July 26, 2026
Supports:
- Supported iPhone, carrier, plan, and SIM requirements
- 5G Auto, 5G On, and LTE options
- Dual SIM configuration
- Checking coverage
- Toggling Airplane Mode
- Low Power Mode effects
- Contacting the carrier when 5G remains unavailable
Scope limitation:
The instructions apply to supported iPhone models and depend on the carrier, plan, SIM, country, and regional 5G availability.
Samsung Support Philippines
Page: How to use 5G on a Samsung Galaxy phone
Direct verified URL: https://www.samsung.com/ph/support/mobile-devices/how-to-use-5g-on-your-galaxy-phone/
URL status: Verified accessible on July 26, 2026
Supports:
- Checking the 5G plan and compatible SIM
- Selecting a Network mode containing 5G
- Confirming 5G coverage
- Normal fallback to LTE or another network
- Restarting a Galaxy phone
- Installing software updates
Scope limitation:
The paths apply to supported Samsung Galaxy phones. Menus vary by device model, carrier, region, and software version.
Google Pixel Phone Help
Page: Use Battery Saver on a Pixel phone
Direct verified URL: https://support.google.com/pixelphone/answer/6187458?hl=en-CA
URL status:
Verified accessible on July 26, 2026
Supports:
- Turning Battery Saver on or off
- Pixel phones with 5G potentially using 4G while Battery Saver is enabled
- Battery Saver behavior varying with the carrier network
Scope limitation:
This guidance applies to supported Google Pixel phones. Other Android brands may manage 5G differently during power saving.
Apple Support Philippines
Page: Use Low Power Mode to save battery life on your iPhone or iPad
Direct verified URL: https://support.apple.com/en-ph/101604
URL status: Verified accessible on July 26, 2026
Supports:
- Turning Low Power Mode on or off
- 5G being disabled on most supported devices while Low Power Mode is active
- Stated exceptions for some activities on iPhone 12 and iPhone 13 models
Scope limitation:
Exact behavior depends on the iPhone model, activity, and installed iOS version.
Apple iPhone User Guide
Page: Reset iPhone settings to their defaults
Direct verified URL: https://support.apple.com/en-ph/guide/iphone/iphea1c2fe48/ios
URL status: Verified accessible on July 26, 2026
Supports:
- Reset Network Settings
- Network information removed by the reset
- Warning that Erase All Content and Settings is a separate destructive option
- Network resets not being the same as deleting all iPhone content
Scope limitation:
The displayed paths apply to the current iPhone User Guide and may vary slightly across iOS versions.
How This Guide Was Verified
Last technically checked:
July 26, 2026
Research method:
The website’s Network Fix archive and its existing LTE, weak-signal, slow-data, and connected-without-internet articles were checked for overlapping intent. Current Google Pixel, Apple, and Samsung support pages were opened directly, their visible titles were checked, and their instructions were matched to the relevant procedures.
Physically tested:
No documentation reviewed.
Applies to:
5G-capable Android phones and iPhones using a compatible carrier, mobile plan, SIM or eSIM, and covered location.
Important limitation:
5G coverage, network types, frequency support, plan eligibility, SIM requirements, network-mode choices, roaming, and menu paths vary by country, carrier, phone model, regional variant, and software version.
Data-loss risk:
Conditional. Coverage checks, Airplane Mode, restarting, SIM selection, network-mode changes, and power-mode testing are non-destructive. Resetting network settings removes saved connection information but should not erase personal photos or media. Factory reset is not included.
Bottom Line
If 5G is not working, don’t start by changing advanced settings.
Check the problem in this order:
Coverage → Plan → Phone compatibility → SIM/eSIM → Mobile data → Network mode → Airplane Mode/restart → Power-saving settings → Software updates → Network reset
If another compatible phone on the same carrier gets 5G in the same location while yours does not, focus on the phone, SIM, account, or compatibility.
If every phone on that carrier stays on LTE in the same location, investigate coverage or a carrier outage instead.