An eSIM belongs to one device and cannot be transferred. Do not delete its profile while you still need your plan; it cannot be reinstalled from the SimSIM app.
Which phone are you setting up?
Install before you travel
Add the eSIM while you have a reliable internet connection. Keep your current data line selected until you arrive.
App installation works on both iPhone and Android. Open your plan and tap Install eSIM. Use QR or manual entry only if this button does not work for you.
Start with the SimSIM app
Install from My eSIMs
Open the SimSIM app → My eSIMs → the plan for this trip. Tap Install eSIM. Your phone opens its eSIM installer directly; no QR code or manual codes are needed.
Confirm and finish installation
Approve adding the eSIM and let setup finish. On iOS 26 and later, choose Data Only when asked, then tap Done. On earlier versions, keep Primary selected for the default line, iMessage/FaceTime, and cellular data until arrival.
Turn on your travel eSIM
Open Settings → Cellular (or Mobile Data), select the eSIM you installed, and enable Turn On This Line.
Enable data roaming for the travel line
Select the newly installed eSIM in Settings → Cellular and turn Data Roaming on. Keep data roaming off on your primary line. Leave your primary line selected for mobile data until you reach your destination.
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My eSIMs
Your plan
Install eSIM
Show QR / Manual install···
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Cellular
Activate eSIM
eSIM
Data Only
Continue
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Cellular
Network name
Turn On This Line
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Cellular
Network name
Data Roaming
Network name · Data Roaming · On
Your new line appears under a local network name, not “SimSIM”. The illustrations use “Network name” to represent that line.
Use these instructions only if Install eSIM in the app does not work. If app installation succeeded, skip this section and follow the arrival steps.
Use these instructions only if Install eSIM in the app does not work. If app installation succeeded, skip this section and follow the arrival steps.
Find your installation details
In the SimSIM app, open My eSIMs → your plan → the three-dot menu → Show QR / Manual install. Display the QR code on another screen for scanning. On a supported phone, you can also long-press the QR code to open setup on the same device.
Open your eSIM settings
Go to Settings → Cellular (or Mobile Data) → Add eSIM → Use QR Code.
Scan your QR code
Open the Camera app on the phone you are setting up and scan the code. Tap the notification, then Add Cellular Plan. You can also use the scanner in Settings → Cellular → Add eSIM → Use QR Code.
Confirm and finish installation
Approve adding the eSIM and let setup finish. On iOS 26 and later, choose Data Only when asked, then tap Done. On earlier versions, keep Primary selected for the default line, iMessage/FaceTime, and cellular data until arrival.
Turn on your travel eSIM
Open Settings → Cellular (or Mobile Data), select the eSIM you installed, and enable Turn On This Line.
Enable data roaming for the travel line
Select the newly installed eSIM in Settings → Cellular and turn Data Roaming on. Keep data roaming off on your primary line. Leave your primary line selected for mobile data until you reach your destination.
Step 1 of 5
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Settings
Cellular
Cellular DataPrimary
SIM
PrimaryOn
Add eSIM
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Cellular
Use QR Code
Scan QR code
Enter Details Manually
9:41
Cellular
Activate eSIM
eSIM
Data Only
Continue
9:41
Cellular
Network name
Turn On This Line
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Cellular
Network name
Data Roaming
Network name · Data Roaming · On
Your new line appears under a local network name, not “SimSIM”. The illustrations use “Network name” to represent that line.
If QR installation also does not work, enter the details manually.
Find your installation details
In the SimSIM app, open My eSIMs → your plan → the three-dot menu → Show QR / Manual install. Copy the SM-DP+ address and Activation code using the buttons beside each field.
Open your eSIM settings
Open Settings → Cellular (or Mobile Data) → Add eSIM → Use QR Code → Enter Details Manually.
Enter your installation details
Choose Use QR Code → Enter Details Manually. Paste the SM-DP+ address and activation code exactly as shown in the app. Leave the confirmation code field empty, then tap Next and follow the download prompts.
Confirm and finish installation
Approve adding the eSIM and let setup finish. On iOS 26 and later, choose Data Only when asked, then tap Done. On earlier versions, keep Primary selected for the default line, iMessage/FaceTime, and cellular data until arrival.
Turn on your travel eSIM
Open Settings → Cellular (or Mobile Data), select the eSIM you installed, and enable Turn On This Line.
Enable data roaming for the travel line
Select the newly installed eSIM in Settings → Cellular and turn Data Roaming on. Keep data roaming off on your primary line. Leave your primary line selected for mobile data until you reach your destination.
Step 1 of 5
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Settings
Cellular
Cellular DataPrimary
SIM
PrimaryOn
Add eSIM
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Cellular
Enter Details Manually
SM-DP+ AddressFrom your SimSIM plan
Activation CodeFrom your SimSIM plan
Confirmation CodeLeave empty
Next
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Cellular
Activate eSIM
eSIM
Data Only
Continue
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Cellular
Network name
Turn On This Line
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Cellular
Network name
Data Roaming
Network name · Data Roaming · On
Your new line appears under a local network name, not “SimSIM”. The illustrations use “Network name” to represent that line.
iOS 26 and later: choose Data Only if asked. Earlier iOS: keep Primary for the default line, iMessage/FaceTime, and cellular data during setup. Switch mobile data only after arrival.
Installation complete
Keep your primary data line selected until you arrive. Then follow the connection steps below.
At a destination covered by your plan, select the eSIM you installed for mobile data. Confirm its line and data roaming are enabled. Your plan details explain its validity and activation conditions.
Select your travel line for mobile data
Under Cellular Data (or Mobile Data), select your travel eSIM. Turn off Allow Cellular Data Switching so your phone does not switch data back to your primary line.
Turn on your travel eSIM
Open Settings → Cellular (or Mobile Data), select the eSIM you installed, and enable Turn On This Line.
Enable data roaming for the travel line
Open your travel eSIM settings and confirm Data Roaming is on. Keep data roaming off on your primary line. Allow a few minutes for the travel line to connect.
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Cellular
Cellular Data
Primary
Network name
Allow Cellular Data Switching
Network name · On
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Cellular
Network name
Turn On This Line
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Cellular
Network name
Data Roaming
Network name · Data Roaming · On
Screen labels and layouts may vary with your phone language and OS version.
Android illustrations show Samsung-style settings. Menu names and screen layouts vary by manufacturer and Android version. On Pixel, look under Network & internet → SIMs → Add SIM.
Install before you travel
Add the eSIM while you have a reliable internet connection. Keep your current data line selected until you arrive.
App installation works on both iPhone and Android. Open your plan and tap Install eSIM. Use QR or manual entry only if this button does not work for you.
Start with the SimSIM app
Install from My eSIMs
Open the SimSIM app → My eSIMs → the plan for this trip. Tap Install eSIM. Your phone opens its eSIM installer directly; no QR code or manual codes are needed.
Confirm and finish installation
Approve adding the eSIM and tap Continue if prompted. Installation may take a few minutes and show progress as a percentage. Keep the installation screen open until it finishes.
Turn on your travel eSIM
Open Settings → Connections → SIM manager and check that the eSIM you just installed is enabled. It appears under a network name, not SimSIM.
Enable data roaming for the travel line
Open Settings → Connections → Mobile networks and turn Data roaming on for the travel eSIM. On some Android devices it is inside the eSIM settings. Keep your primary line selected for mobile data until arrival; keep its data roaming off where separately available.
Step 1 of 4
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My eSIMs
Your plan
Install eSIM
Show QR / Manual install···
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SIM manager
Add eSIM
eSIM
Continue
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SIM manager
Network name
Use SIM
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SIM manager
Mobile networks
Mobile dataNetwork name
Data Roaming
Network name · Data Roaming · On
Your new line appears under a local network name, not “SimSIM”. The illustrations use “Network name” to represent that line.
Use these instructions only if Install eSIM in the app does not work. If app installation succeeded, skip this section and follow the arrival steps.
Use these instructions only if Install eSIM in the app does not work. If app installation succeeded, skip this section and follow the arrival steps.
Find your installation details
In the SimSIM app, open My eSIMs → your plan → the three-dot menu → Show QR / Manual install. Display the QR code on another screen for scanning. On a supported phone, you can also long-press the QR code to open setup on the same device.
Open your eSIM settings
Go to Settings → Connections → SIM manager → Add eSIM → Scan QR code. Other Android phones may use Network & internet → SIMs instead.
Scan your QR code
Open the QR scanner from Quick Settings and scan the code, then confirm adding the plan. You can also use Settings → Connections → SIM manager → Add eSIM → Scan QR code.
Confirm and finish installation
Approve adding the eSIM and tap Continue if prompted. Installation may take a few minutes and show progress as a percentage. Keep the installation screen open until it finishes.
Turn on your travel eSIM
Open Settings → Connections → SIM manager and check that the eSIM you just installed is enabled. It appears under a network name, not SimSIM.
Enable data roaming for the travel line
Open Settings → Connections → Mobile networks and turn Data roaming on for the travel eSIM. On some Android devices it is inside the eSIM settings. Keep your primary line selected for mobile data until arrival; keep its data roaming off where separately available.
Step 1 of 5
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Connections
SIM manager
Mobile dataPrimary
SIM
PrimaryOn
Add eSIM
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SIM manager
Scan QR code
Scan QR code
Enter activation code
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SIM manager
Add eSIM
eSIM
Continue
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SIM manager
Network name
Use SIM
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SIM manager
Mobile networks
Mobile dataNetwork name
Data Roaming
Network name · Data Roaming · On
Your new line appears under a local network name, not “SimSIM”. The illustrations use “Network name” to represent that line.
If QR installation also does not work, enter the details manually.
Find your installation details
In the SimSIM app, open My eSIMs → your plan → the three-dot menu → Show QR / Manual install. Copy the SM-DP+ address and Activation code using the buttons beside each field.
Open your eSIM settings
Open Settings → Connections → SIM manager → Add eSIM (or +). Choose Enter activation code or Add using activation code.
Enter your installation details
Choose Enter activation code or Add using activation code. Enter the SM-DP+ address and activation code from the app into the matching fields, then tap Connect or Confirm. Android screens vary; follow your device’s field labels.
Confirm and finish installation
Approve adding the eSIM and tap Continue if prompted. Installation may take a few minutes and show progress as a percentage. Keep the installation screen open until it finishes.
Turn on your travel eSIM
Open Settings → Connections → SIM manager and check that the eSIM you just installed is enabled. It appears under a network name, not SimSIM.
Enable data roaming for the travel line
Open Settings → Connections → Mobile networks and turn Data roaming on for the travel eSIM. On some Android devices it is inside the eSIM settings. Keep your primary line selected for mobile data until arrival; keep its data roaming off where separately available.
Step 1 of 5
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Connections
SIM manager
Mobile dataPrimary
SIM
PrimaryOn
Add eSIM
9:41
SIM manager
Enter activation code
SM-DP+ AddressFrom your SimSIM plan
Activation CodeFrom your SimSIM plan
Connect
9:41
SIM manager
Add eSIM
eSIM
Continue
9:41
SIM manager
Network name
Use SIM
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SIM manager
Mobile networks
Mobile dataNetwork name
Data Roaming
Network name · Data Roaming · On
Your new line appears under a local network name, not “SimSIM”. The illustrations use “Network name” to represent that line.
At a destination covered by your plan, select the eSIM you installed for mobile data. Confirm its line and data roaming are enabled. Your plan details explain its validity and activation conditions.
Select your travel line for mobile data
In SIM manager, select Mobile data and choose your travel eSIM. Turn off automatic data switching or backup data if your device offers it.
Turn on your travel eSIM
Open Settings → Connections → SIM manager and check that the eSIM you just installed is enabled. It appears under a network name, not SimSIM.
Enable data roaming for the travel line
With the travel eSIM selected for mobile data, open Connections → Mobile networks and confirm Data roaming is on. On other Android phones it may be in the eSIM settings. Keep the primary line’s roaming off where separately available.
Step 1 of 3
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SIM manager
Mobile data
Primary
Network name
Data switching
Network name · On
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SIM manager
Network name
Use SIM
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SIM manager
Mobile networks
Mobile dataNetwork name
Data Roaming
Network name · Data Roaming · On
Screen labels and layouts may vary with your phone language and OS version.
Check that you are connected
Confirm the travel eSIM is enabled and selected for mobile data.
Confirm data roaming is enabled for the travel eSIM.
Turn off Wi-Fi briefly and open a web page to test your mobile data.
Keeping your primary line on may incur charges for calls and SMS under your home carrier’s terms. SimSIM is a data-only eSIM.
When you’re back home
Switch back to your usual SIM so calls and mobile data use your home plan.
Open Settings → Cellular (or Mobile Data). Turn your primary line on if needed, select it under Cellular Data, and check Default Voice Line. Open the travel eSIM and turn off Turn On This Line.
Open Settings → Connections → SIM manager (Samsung), or Network & internet → SIMs (Pixel). Enable your primary SIM and select it for mobile data, calls, and SMS where offered. Turn off the travel eSIM. Menu names vary by manufacturer.
Restore automatic network selection
If you selected an operator manually, restore automatic selection on that line before turning it off. Also check that your primary line uses automatic selection so it can reconnect at home. Use the same Network Selection / Network operators screen described in troubleshooting.
Turn the travel eSIM off; keep its profile. Turning a line off does not delete it. Keep the profile while you still need the plan: a deleted eSIM cannot be reinstalled from the SimSIM app. Turning it off does not pause or extend the plan’s validity. Check your plan’s expiry and top-up options in My eSIMs.
Troubleshooting
Installed but not connected? First confirm your destination is covered, the travel eSIM is on and selected for mobile data, and its data roaming is on. Toggle airplane mode or restart your phone. Keep the eSIM installed while troubleshooting.
Check your APN
APN settings normally configure themselves. Change them only if your eSIM has signal but no internet, or support asks you to. In SimSIM, open My eSIMs → your plan and copy the APN field exactly. There is no single APN for every plan.
Open Settings → Cellular (or Mobile Data) → your travel eSIM → Cellular Data Network. Some versions use Mobile Data → Mobile Data Options → Mobile Data Network.
Under Cellular Data, enter the APN from the app. Leave username and password empty. Go back to save automatically, restart your iPhone, and test mobile data.
Open Settings → Connections → Mobile networks → Access Point Names. Select your travel eSIM if there are multiple lines, then tap Add.
Set Name to SimSIM and APN to the value from the app. Leave other fields unchanged; do not add a username, password, or proxy. Tap ⋮ → Save, select the new APN, then toggle airplane mode or restart.
Open Settings → Network & internet → SIMs → your travel eSIM → Access point names → +.
Set Name to SimSIM and APN to the value from the app. Leave other fields unchanged; do not add a username, password, or proxy. Tap ⋮ → Save, select the new APN, and restart.
More help and menu variations
No Cellular Data Network option on iPhone? The provider controls the APN automatically. Try manual network selection or contact support. An iOS update can reset a manually entered APN.
Try this after arrival if you have no service, signal without internet, or an unstable connection. In SimSIM, open My eSIMs → your plan and note the partner network for your destination. Change only the travel eSIM’s settings.
Open Settings → Cellular (or Mobile Data) → your travel eSIM → Network Selection.
Turn off Automatic. Allow up to two minutes for the search, then choose the network listed in the app and wait for signal and the check mark.
Open Settings → Connections → Mobile networks → Network operators. Select your travel eSIM if there are multiple lines.
Turn off Select automatically. Wait for the search, choose the partner network listed in the app, and wait for registration. If the switch is disabled, enable mobile data for the travel eSIM and try again.
Open Settings → Network & internet → SIMs → your travel eSIM.
Turn off Automatically select network. Wait for the search, choose the network listed in the app, and wait for the phone to connect.
More help and menu variations
Network names may repeat or appear as number codes. If one entry fails, try another entry for that same network, then other partner networks listed in the app. If iPhone’s Network Selection is missing after selecting the correct eSIM, contact support.
Still offline? In the app, open Account → Help Center. Include your order number, phone model, OS version, and screenshots of the APN or network list. Do not delete the eSIM.
Take the guide with you
Save the illustrated iPhone and Android instructions as a PDF for offline access. Enter your email and agree to marketing emails to download it.
eSIM installation questions
Should I install my eSIM before travelling?
Yes. Install while you have stable Wi-Fi, then select the travel eSIM for mobile data after arrival. Check your individual plan for its activation and validity conditions.
Can I install an eSIM without a second phone?
Yes. Use Install eSIM directly in the SimSIM app. On supported phones, long-pressing the QR code also opens setup. Manual installation is another option if needed.
Why is my eSIM not called SimSIM?
The device displays a local network’s name rather than SimSIM. This is normal. Select the eSIM you just installed when choosing your travel data line.
Why is my installed eSIM not connecting?
Check that you are in a covered destination, that the correct line is selected for mobile data, and that data roaming is enabled for it. If the issue continues, use the Help Center without deleting the eSIM.
Need a hand getting online?
Keep the eSIM installed. Our Help Center covers connection issues, APN settings, and network selection.
