When mobile data stops working on an Android phone, it can feel more frustrating than Wi-Fi issues because you depend on it while traveling or outside your home. Signal bars may be full, but apps don’t load and websites fail to open.
I personally faced this issue while traveling, where my mobile data is on but not working (android) After checking network settings and testing several fixes, I was able to restore mobile internet without contacting my carrier.
In this article, I’ll explain why mobile data doesn’t work on Android and share practical fixes that actually work.
What Does “Mobile Data Not Working” Mean?
This problem can appear in different ways:
- Data is turned on but no internet access
- Apps don’t load on mobile data
- Internet works on Wi-Fi but not on mobile data
- 4G/5G shows but speed is zero
The cause can be network settings, SIM configuration, or carrier issues.
Common Reasons Mobile Data Stops Working
1. Temporary Network Issue
Carrier networks may experience short outages.
2. Incorrect APN Settings
APN settings control how your phone connects to mobile internet.
3. Data Limit or Data Saver Enabled
Android may restrict mobile data usage.
4. SIM Card Problems
Improper SIM placement or damage can affect data.
5. Network Mode Misconfiguration
Wrong network mode may block data connectivity.
Fixes That Actually Work
Method 1: Toggle Airplane Mode
This refreshes the network connection.
Steps:
- Turn on Airplane mode for 30 seconds
- Turn it off
- Enable mobile data again
This is often enough to fix temporary issues.
Method 2: Restart Your Phone
Restarting resets network services and reconnects to the carrier.
Always try this before advanced steps.
Method 3: Check Mobile Data and Data Limit Settings
Ensure data isn’t restricted.
Steps:
- Go to Settings → Network & Internet
- Tap Mobile network
- Turn off Data saver
- Check Data limit settings
Disable limits if enabled.
Method 4: Verify APN Settings
Incorrect APN settings block internet access.
What to do:
- Compare APN settings with your carrier’s official website
- Reset APN to default
- Save and restart phone
From my experience, incorrect APN was the main cause once.
Method 5: Select Network Mode Manually
Wrong network mode causes connection issues.
Try this:
- Set network mode to 4G/5G auto
- Avoid forcing only 2G or 3G
- Restart phone after changing
Method 6: Reset Network Settings
This fixes corrupted network configuration.
Steps:
- Go to Settings → System
- Tap Reset options
- Select Reset Wi-Fi, mobile & Bluetooth
- Confirm reset
You’ll need to reconnect networks afterward.
Method 7: Check SIM Card
SIM-related issues are common.
What to do:
- Remove and reinsert SIM
- Clean SIM gently
- Test SIM in another phone
If data works elsewhere, the issue is phone-related.
Why Mobile Data Works on Wi-Fi but Not Otherwise
Wi-Fi bypasses carrier network restrictions, while mobile data depends on:
- APN
- Network coverage
- SIM configuration
That’s why Wi-Fi may work while mobile data fails.
FAQs
Can Android updates break mobile data?
Yes, sometimes APN or network settings reset after updates.
Does changing SIM slot matter?
Yes, some phones support higher speeds only on specific slots.
Is this issue common while roaming?
Yes, roaming requires proper network permissions.
Should I contact my carrier?
Only if none of the fixes work.
Final Thoughts
If mobile data is not working on Android, the issue is usually related to APN settings, data restrictions, or temporary network problems.
From my experience, resetting network settings and verifying APN details solved the issue quickly without calling customer support.
Vaishnav Singh is the founder and primary author of TechHary.com. Based in Mumbai, he brings hands-on professional experience to his writing, having worked extensively as a Windows expert within the IT industry. His practical background in solving complex technical issues fuels his passion for creating clear, helpful, and relevant content. At TechHary.com, Vaishnav dedicates himself to publishing in-depth articles, guides, and insights aimed at demystifying technology for enthusiasts and professionals alike. His mission is to build a trusted resource where readers can find reliable information to navigate the ever-evolving tech landscape.