You have arrived at your destination, activated your international travel eSIM, and kept your primary phone number active for calls and messages. Everything appears correctly configured, but your Google Pixel 10 is not behaving as expected.
Web pages may load slowly, apps may lose connection, or your phone may accidentally use your home SIM for mobile data instead of your travel eSIM. These problems can lead to frustration and unexpected roaming charges.
The good news is that most Google Pixel 10 Dual SIM data problems can be fixed by adjusting a few settings, choosing the correct data SIM, and preventing Android from switching between lines automatically.
Quick Answer
The most common causes of Google Pixel 10 Dual SIM data problems are:
• Automatic mobile data switching is enabled.
• The wrong SIM is selected as the default data line.
• Your home SIM roaming settings are not configured correctly.
• Backup Calling creates unexpected behaviour between two active lines.
• Temporary carrier configuration issues affect your connection.
In most cases, selecting your travel eSIM as the main data line and disabling automatic switching will restore normal performance.
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Why Does Pixel 10 Dual SIM Data Stop Working?
1. Automatic Mobile Data Switching Is Enabled
The Pixel 10 can automatically switch mobile data between SIM lines when one connection becomes weak. While this feature can be useful in some situations, it may cause problems when travelling because your phone may temporarily move away from your travel eSIM connection.
If you want complete control over your data usage, disable automatic switching.
2. The Wrong SIM Is Selected for Mobile Data
When two SIM profiles are active, Android needs to know which line should handle internet traffic.
Your travel eSIM should normally be selected as the default mobile data SIM, while your home SIM remains active for calls and messages.
3. Backup Calling May Cause Unexpected Dual SIM Behaviour
Backup Calling allows one SIM to use another SIM's data connection for calls when needed. Although useful, it may sometimes create confusing behaviour when using international travel eSIMs.
Temporarily disabling Backup Calling can help identify whether it is affecting your connection.
4. Incorrect Roaming Settings
Your travel eSIM usually requires roaming to be enabled because it connects through partner networks in another country.
At the same time, your home SIM roaming should normally remain disabled to avoid unexpected charges.
5. Temporary Carrier Configuration Issues
After switching countries or activating a new eSIM, Android may need to refresh carrier settings. Restarting your phone or clearing Carrier Services data can sometimes resolve connection problems.
How to Fix Google Pixel 10 Dual SIM Data Problems
Follow these steps in order.
Step 1: Turn Off Automatic Mobile Data Switching
- Open Settings.
- Tap Network & internet.
- Select SIMs.
- Find the option for automatic mobile data switching.
- Turn it Off.
This prevents Android from moving your internet connection between SIM profiles without your permission.
Step 2: Select Your Travel eSIM as the Data SIM
- Open Settings.
- Go to Network & internet > SIMs.
- Select Mobile data.
- Choose your travel eSIM.
Your travel plan should now handle all internet traffic.
Step 3: Check SIM Roaming Settings
For your travel eSIM:
- Open your travel eSIM settings.
- Turn Data roaming on if required by your provider.
For your home SIM:
- Open your home SIM settings.
- Keep Data roaming off unless you specifically need it.
This setup allows your travel eSIM to work while helping prevent accidental roaming charges.
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Step 4: Disable Backup Calling Temporarily
If you continue experiencing problems:
- Open Settings.
- Go to Network & internet > SIMs.
- Select your home SIM.
- Find Backup Calling.
- Turn it Off.
Test your mobile data connection again.
Step 5: Clear Carrier Services Data
If your Pixel 10 still has connection issues:
- Open Settings.
- Tap Apps.
- Select See all apps.
- Tap the three dots in the top-right corner.
- Choose Show system.
- Open Carrier Services.
- Tap Storage & cache.
- Select Clear storage or Clear data.
- Restart your phone.
This refreshes carrier-related configuration information.
Step 6: Refresh Your Mobile Connection
If your connection is still unstable:
- Turn Airplane Mode on.
- Wait 30 seconds.
- Turn Airplane Mode off.
- Test your mobile data again.
If necessary, restart your Pixel 10.
Frequently Asked Questions
Can I keep my home SIM active while using a travel eSIM?
Yes. Many travellers keep their home SIM active for receiving calls and text messages while using the travel eSIM for mobile data.
Will my phone automatically use my home SIM for internet?
It can happen if your default mobile data setting or automatic switching options are configured incorrectly. Selecting your travel eSIM as the data SIM prevents this.
Should I disable my home SIM completely?
Usually no. Keeping your home SIM active can allow you to receive important messages. The important step is making sure mobile data uses your travel eSIM.
Can I use two eSIMs at the same time?
This depends on your Pixel model, Android version, and carrier support. Some devices support multiple stored eSIM profiles, but active SIM combinations may vary.
Why is my battery draining faster with Dual SIM?
Using two active SIM profiles can increase battery usage because your phone manages multiple network connections. Battery drain is usually more noticeable in areas with weak coverage.
Final Verdict
Google Pixel 10 Dual SIM data problems are usually caused by incorrect SIM priorities, automatic data switching, roaming settings, or temporary carrier configuration issues.
The most effective fixes are:
• Turn off automatic mobile data switching.
• Select your travel eSIM as the default data line.
• Enable roaming only on your travel eSIM when required.
• Disable Backup Calling temporarily if needed.
• Refresh Carrier Services and restart your phone.
With the correct settings, you can keep your home number active while using your travel eSIM for affordable mobile data without worrying about unexpected roaming costs.