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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →If your iPhone eSIM is not working, first check whether the line is missing or simply turned off. Then refresh the connection, restart the phone, and check for a carrier settings update. If the line is absent or activation still fails, your carrier may need to activate or reprovision it. Before switching carriers, confirm that your iPhone is unlocked and that the new carrier supports eSIM for your exact model and location.
Start with the setup requirements
If you are activating or transferring an eSIM, connect the iPhone to Wi-Fi or a personal hotspot. Some eSIM-only iPhone models in some countries and regions can activate without Wi-Fi, but availability depends on the model and location. You also need an active plan with a carrier that supports eSIM.
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Install the latest iOS version available for your iPhone if you can. Menu names and eSIM availability can vary by region and iOS release.
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Check whether the eSIM is missing or switched off
Open Settings > Cellular. In some regions this menu is called Mobile Service or Mobile Data.
#1 Best Overall
- Universal Carrier Compatibility: This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.)
- Carrier Verification Required: Please check with your carrier to verify compatibility
- Simple Activation Process: When you receive the phone, insert a SIM card from a compatible carrier. Then, turn it on, connect to Wi-Fi, and follow the on screen prompts to activate service
- Package Contents: The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charger and charging cable
- Battery Health Guarantee: Tested for battery health and guaranteed to have a minimum battery capacity of 80%
- If the line appears but is off: tap it and turn on the line, then check whether service returns.
- If the line does not appear: the eSIM has not been added to the iPhone. Contact your carrier to set it up or transfer it; restarting will not install a missing line.
If this is a travel eSIM and the line is present but mobile data does not work, check whether data roaming needs to be enabled for that line.
Try these steps for No Service or Searching
Apple describes “No Service” or “Searching” in the status bar as a sign that the device is not connected to a mobile network. If the eSIM line is present and enabled, work through these checks:
Rank #2
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Please check with your carrier to verify compatibility.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charging cable.
- Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
- Turn on Airplane Mode, wait briefly, then turn it off.
- Open Settings > Cellular (or Mobile Service / Mobile Data) and confirm the affected line is on.
- Restart the iPhone.
- Open Settings > General > About and check for a carrier settings update. Follow the on-screen prompt if one appears.
On iOS 18 or later, the Apple Support app can run additional diagnostics that may help identify the source of an eSIM setup problem.
When the checks do not restore service
Contact the carrier if the line remains absent, activation fails, or service does not return. Have the error message, phone number, carrier account password or PIN, and the iPhone’s IMEI or EID ready. The carrier can check whether the plan and eSIM are correctly provisioned and whether an account issue, outage, or other service restriction is involved.
Rank #3
- This phone is unlocked and compatible with any carrier of choice on GSM and CDMA networks (e.g. AT&T, T-Mobile, Sprint, Verizon, US Cellular, Cricket, Metro, Tracfone, Mint Mobile, etc.).
- Tested for battery health and guaranteed to have a minimum battery capacity of 80%.
- Successfully passed a full diagnostic test which ensures like-new functionality and removal of any prior-user personal information.
- The device does not come with headphones or a SIM card. It does include a generic (Mfi certified) charging cable.
- Inspected and guaranteed to have minimal cosmetic damage, which is not noticeable when the device is held at arm's length.
Set up or transfer an eSIM
The available setup route depends on the carrier and device. Apple lists these possibilities:
- Carrier activation: the carrier assigns an eSIM to the iPhone as part of its activation process.
- Quick Transfer: move a number from a nearby iPhone when the carrier supports the feature. Once the number moves, it stops working on the previous iPhone.
- QR code: scan a code supplied by the carrier.
- Carrier app or link: use the carrier’s supported app or activation link.
- Manual details: enter eSIM information supplied by the carrier.
- Transfer from a non-Apple phone: ask the carrier how to move the number; the carrier may need to complete the transfer.
If an expected option is missing or setup does not complete, check with the carrier rather than repeatedly trying a different method. The carrier determines which activation and transfer methods it supports for your plan.
Rank #4
- 【Upgrade Phones with eSIM Capability】The EIOTCLUB V3 physical eSIM card adds eSIM capabilities to unlocked iPhone and Android devices that have a physical SIM card slot, compatible with most models on the market.
- 【Direct iPhone Profile Management】This upgraded eSIM adapter lets users download, install and manage compatible eSIM profiles directly in the EIOTCLUB app. No card reader, computer or Android phone needed for profile management. A practical eSIM upgrade for users who want simpler profile management from their iPhone.
- 【Rewritable: Store Up To 9 Profiles】Includes 1 built-in Seed Profile that cannot be deleted, plus 8 additional profile slots. You can flexibly switch between different countries, eSIM providers and data plans. A ideal solution for travel and changing mobile network requirements. Note: only one profile can be active at a time.
- 【Refillable & 1GB Global Data for Easy Start】Start with 1GB of prepaid global data, valid for 30 days in 200+ supported countries and regions. Stay connected during initial setup and profile downloads. After the included data is used or expires, choose from eligible EIOTCLUB data plans based on your needs.
- 【Automatic network backup for reliable connections】If a compatible profile cannot connect, this upgrated physical eSIM can restore the most recently working profile under supported conditions, helping simplify profile recovery.
Before switching carriers
Check these points with the new carrier before starting the move:
- Unlock status: the iPhone must be unlocked for use with another carrier, unless both plans are from the same carrier.
- eSIM compatibility: ask whether the carrier supports eSIM for your exact iPhone model and the country or region where you will use it.
- Activation or transfer process: confirm whether the carrier will activate the eSIM, provide a QR code or link, support Quick Transfer, or require another method.
- Account and number details: verify any account requirements, number-transfer timing, plan terms, and local coverage directly with the carrier. These vary and are not established by Apple’s general setup instructions.
Do not assume that an eSIM can be moved between carriers simply by reusing its existing activation details. Follow the new carrier’s process for activating the plan or transferring the number.
Best Value
- This pre-owned product is not Apple certified, but has been professionally inspected, tested and cleaned by Amazon-qualified suppliers.
- There will be no visible cosmetic imperfections when held at an arm’s length. There will be no visible cosmetic imperfections when held at an arm’s length.
- This product will have a battery which exceeds 80% capacity relative to new.
- Accessories will not be original, but will be compatible and fully functional. Product may come in generic Box.
- This product is eligible for a replacement or refund within 90 days of receipt if you are not satisfied.
When Dual SIM makes an eSIM look broken
Dual SIM requires supported plans and carrier service. The iPhone must be unlocked, or both plans must be from the same carrier. Confirm that both plans are set up, the carrier supports Dual SIM, coverage is available, and there is no outage or billing-related block. Enterprise plans may have additional restrictions.
An iPhone uses one cellular data network at a time. During a call on one line, the other line may show No Service. Wi-Fi Calling and Allow Cellular Data Switching can affect whether calls to the other number are received. This behavior alone does not establish that the eSIM is broken.
If you need a physical-SIM fallback
If your iPhone model has a SIM tray and your carrier offers a compatible physical SIM, ask the carrier whether switching to one is an option. Apple’s setup guidance describes removing the tray with a paper clip or SIM eject tool. A tool can help access the tray, but it cannot fix eSIM activation or carrier provisioning.
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