If you’re using a Dual SIM Samsung Galaxy smartphone running Android, you should know how to change its Dual SIM settings according to your needs. You can select a preferred SIM card for mobile data and set which SIM your Android smartphone uses when making calls or sending SMS messages. Or you can enable dual SIM calling and have your device prompt you for the correct SIM every time. You are also able to customize your SIM cards if you need to differentiate between them more easily. This tutorial shows you all you need to know about SIM management on a Samsung Galaxy smartphone:
The Android Quick Settings on a Samsung Galaxy smartphone offer a fast way to set the default SIM for calls, text messages, or mobile data. If they are enabled, you should see the three options in the middle of the extended Quick Settings panel.
If they’re not shown, you can easily enable the Dual SIM settings. Tap on the More options button from the upper-right corner. Its icon looks like three vertical dots.
From the dropdown menu, tap on Quick panel layout.
If you want the Dual SIM settings shown in the Quick Settings menu, tap on the “Show multi SIM info” option to enable the switch next to it.
To decide which SIM you use when making a call from your Samsung Galaxy smartphone running Android, tap on the Calls button in the Quick Settings panel.
In the menu that pops up, you can decide which SIM card you want to use as the default when you make a call.
We recommend selecting the SIM with the best plan for phone calls. However, you can use the Ask always setting if you prefer to switch between the two SIM cards.
If you go with the Ask always option, you are prompted to make the decision every time you initiate a call, which can become very annoying very fast.
Tap on Text messages to select the default SIM when sending an SMS.
Next, select one of the two SIM cards.
Again, we recommend choosing the SIM card with the best plan for text messages.
Tap on Mobile data to decide on the preferred SIM for connecting to the internet.
Then, select the SIM you want to use for mobile data.
Open the Settings app on your Samsung Galaxy smartphone and tap on Connections.
Next, access the SIM card manager.
This opens the SIM card manager screen, the go-to place to change the Dual SIM settings on your Samsung Galaxy smartphone with Android.
At the top of the SIM card manager screen, you can see the two SIM cards inside your smartphone and their status. Tap on either of them.
On the settings screen for each SIM card, you have categories you can access to change its Icon and Name.
In the Preferred SIM card section, you can select the default card you want to use when making calls, sending text messages, or browsing the internet using your mobile data plan. Tap on the corresponding entry and select the SIM card you want to use.
The available options are almost identical to the ones in the Quick Settings panel, described in the previous chapter. The only difference is the option to turn off Mobile data from the corresponding dropdown menu, seen below.
When it comes to calls, you can also assign a different background image for each SIM card and use a different ringtone to tell the two cards apart. To begin, open the Phone app on your Samsung smartphone.
Next, tap on More options from the upper-right corner. The icon looks like three vertical dots.
This opens a dropdown menu. Tap on the last option, Settings.
In the Call settings screen, tap on Call background.
Next, you can select the card and proceed to set a custom background image for it.
You can also access “Call alerts and ringtone” from the Call settings screen.
You can see the Ringtone section displaying the name of the tune used for each SIM card. Tap on it to select a SIM and choose a different ringtone.
TIP: No matter how many SIM cards you’re using, we recommend using a SIM PIN code to protect them. For more details, check out our guide on the SIM PIN, which includes the reasons we recommend using one.
Now you know how to set a default SIM for calls, text messages, and mobile data. We also showed you how to tinker with your Samsung Galaxy’s settings to identify each card faster, including when it comes to your voice calls. Before you close this page, let us know which setting you were trying to change when you came across our guide. Did you find any of the others useful? Leave your opinion in the comments.