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소정288
User level: Level 1 (4 points)

Physical SIM shows “No Service” when travel eSIM is active

Physical SIM shows “No Service” when travel eSIM is active


Hi everyone,


I’m having a problem with Dual SIM on my iPhone 15.


I have a physical SK Telecom (SKT) SIM as my main/home line, and I recently installed a 2-day travel eSIM.


Before installing the travel eSIM, my physical SKT SIM worked normally.


Here’s what happens now:



  • Physical SKT SIM ON + travel eSIM OFF: SKT works normally.


  • Physical SKT SIM ON + travel eSIM ON: The travel eSIM works, but my physical SKT SIM shows “No Service.”


  • If I turn off the travel eSIM, the SKT SIM immediately gets service again.


  • The travel eSIM can see SK Telecom when I manually select a network.


  • However, when I go to Network Selection for my physical SKT SIM, SK Telecom does not appear at all.

I know that iPhone supports using a physical SIM and an eSIM simultaneously, so I don’t think the physical SIM should lose service just because the travel eSIM is active.


Has anyone experienced something similar where the eSIM works normally but the physical SIM shows “No Service” whenever both lines are active?


Could this be related to carrier settings, SIM provisioning, or a Dual SIM issue?


Any help would be appreciated. Thank you!

Posted on Oct 4, 2026 7:08 AM

3 replies

SravanKrA
User level: Level 10 (454,138 points)

Oct 4, 2026 11:45 PM in response to 소정288

To use two network providers, your network provider must unlock your iPhone, or both plans must be from the same network provider. Contact your network provider for details. If you have an enterprise or corporate data service plan, check with your company administrator to see if they support this feature.

SravanKrA
User level: Level 10 (454,138 points)

Oct 4, 2026 11:45 PM in response to 소정288

If you see No Service or Searching on your iPhone or iPad

  1. Check your coverage area. Make sure that you're in an area with cellular network coverage. ... 
  2. Restart your iPhone or iPad. Restart your device. ... 
  3. Check for a Carrier Settings update. ... 
  4. Take out the SIM card. ... 
  5. Reset your Network Settings. ... 
  6. Update your iPhone or iPad. ... 
  7. Contact your carrier. ... 
  8. Get more help.


If you see No Service or Searching on your iPhone or iPad ...



Remove your SIM card from the SIM card tray and then put the SIM card back. ... Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly.


If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad ...



Learn what to do if you see a SIM not supported alert.



If you see No Service, Searching, or SOS on your iPhone or iPad

  1. Check your coverage area. ... 
  2. If you see SOS or SOS only. ... 
  3. If you're on 3G network. ... 
  4. Restart your iPhone or iPad. ... 
  5. Check for a Carrier Settings update. ... 
  6. Turn your cellular line off and back on. ... 
  7. Reset your Network Settings. ... 
  8. Update your iPhone or iPad.

More items...•


If you see No Service, Searching, or SOS on your iPhone or iPad



To be able to use any SIM across the globe you must have "No SIM Restriction" against Network Provider Lock. Please refer to the pic below.




If you see No Service or Searching in the status bar on your iPhone or iPad (Wi-Fi + Cellular), your device isn't connected to a cellular network. If you see SOS or "SOS only" in the status bar, your device can still make emergency calls.


If you see No Service, Searching, or SOS on your iPhone or iPad

Originally posted at discussions.apple.com/thread/256370230