Huawei P40 eSIM: compatibility, setup, and travel data

The short answer is conditional: some Huawei P40 versions support eSIM, but the name “Huawei P40” alone does not identify which SIM configuration you have. Huawei’s published P40 specifications list a single-SIM configuration with one nano-SIM and one eSIM, as well as a dual-SIM configuration with two physical nano-SIM cards. Huawei also notes that eSIM availability depends on the country or region and carrier. Check the phone itself before choosing a travel plan; do not assume that every P40 can add a digital SIM.

This guide shows how to identify the version, confirm eSIM support in the settings, install a profile if the option is available, and use it for mobile data abroad. It also explains what to check if a QR code or connection does not work.

Does Huawei P40 support eSIM?

The single-SIM Huawei P40 configuration is listed by Huawei as supporting one nano-SIM and one eSIM. The dual-SIM configuration is listed as one nano-SIM plus another nano-SIM. These are materially different versions of the same model name. A dual physical-SIM tray or a listing that says “dual SIM” is not evidence that the phone can use eSIM.

The exact P40 version is not specified in the name supplied here. Treat the phone as compatible only after its own settings confirm an eSIM identifier or an eSIM setup option. Even a compatible handset can be limited by its original market, software configuration, carrier plan, or a network lock. The actual service also depends on the carrier and destination network.

“Single-SIM” describes the phone’s physical SIM configuration; it does not mean the phone can only store one line. Huawei’s specification describes one nano-SIM alongside eSIM on the supported version. A dual-SIM P40 may have space for two physical cards and no eSIM menu. Different product pages and retailers may describe these versions imprecisely, so use the device settings and the exact model code from Settings → About phone as the final checks.

Regional versions and operator restrictions

Manufacturers may sell different SIM hardware under the same model name. Huawei’s country-specific specification confirms that P40 configurations differ, but a page for one market does not identify a phone purchased elsewhere. Check Settings → About phone, the SIM management screen, and the seller’s documentation for the exact unit.

An EID does not prove that the phone is carrier-unlocked or that a particular eSIM plan is accepted. Carrier restrictions, the plan’s supported destinations, and local network compatibility still apply. A “5G” label likewise says nothing by itself about eSIM support or 5G service on a travel plan.

Check compatibility before you buy

Use this checklist on the phone itself. A product-family specification cannot confirm the configuration of your individual handset.

• [ ] Look for an EID. Open Settings → About phone and check for an EID or eSIM identifier; depending on software, it may appear under device status. Some Android phones also show identifiers after you enter *#06# in the phone app. An EID is a strong sign of eSIM capability, but it does not prove the phone is unlocked.
• [ ] Check SIM management. Go to Settings → Mobile network → SIM management and look for an eSIM or Add eSIM control. Labels vary by software and region.
• [ ] Confirm the version. Note the model code in About phone and whether SIM management describes one physical SIM or two. Compare with the documentation supplied for that unit.
• [ ] Check the lock and plan. Ask the original carrier whether the phone is unlocked. Confirm that the travel plan supports the destination, dates, device, data allowance, activation timing, and hotspot use you need.
• [ ] Prepare an internet connection. Profile download normally requires Wi-Fi or another dependable connection. Keep the QR code or activation details accessible.

If no EID or eSIM option appears, do not buy a plan on the assumption it will work. Confirm the model with the seller or Huawei support, or use a compatible physical SIM or another verified device.

Check your device compatibility before choosing a plan. “Huawei P40” alone does not establish that your handset can install an eSIM.

Before installing: prepare the phone and profile

An eSIM is a digital SIM profile, not a photo of a QR code. Activation codes are often single-use, so do not delete a working profile or repeatedly rescan a code unless the plan provider confirms it can be reused.

Before setup, confirm the EID and eSIM menu, check that the phone is unlocked, connect to Wi-Fi, and read the plan’s destination, validity, activation, and roaming conditions. Have the QR code open on another screen or use a supported manual-entry option. Keep it private because it contains activation information.

How to install and activate eSIM on Huawei P40

Labels differ by EMUI version and market. On a compatible P40, Huawei places SIM options under Settings → Mobile network → SIM management. If no eSIM option appears, confirm the variant instead of trying unrelated settings.

1. Open SIM management

Go to Settings → Mobile network → SIM management and open the eSIM or SIM 2 controls. If asked whether to use a slot for a physical SIM or eSIM, choose eSIM only when that option is available.

2. Add the profile

Tap Add eSIM or the closest equivalent. Scan the provider’s QR code, select a saved QR image if supported, or enter the activation details manually. Stay online until the profile downloads and the phone confirms installation.

3. Enable and label it

Name the profile “Travel data” or another clear label, then enable it when ready. Installing a profile and connecting to a network are separate steps; it may appear in settings before service is available.

4. Choose the data line

In SIM management, select the travel eSIM for mobile data. Review calls, messages, and data defaults separately if you want to keep your home SIM available. Selecting the travel eSIM for data does not automatically change your calling or SMS line.

5. Follow the roaming instructions

Some travel eSIMs require data roaming for that profile to connect through a partner network. Enable it only for the intended eSIM and check the home SIM’s roaming settings separately. Follow the plan’s instructions.

6. Test it

When the plan should be active, turn Wi-Fi off briefly, check that the eSIM is selected for data, and open a web page. A destination-specific plan may not connect until you arrive.

See the Android eSIM installation instructions for this phone. The iOS eSIM installation instructions are useful if you are setting up an Apple device for another traveller.

Use Huawei P40 eSIM for mobile data while travelling

Choose a plan for the country or region you will visit. For a multi-stop trip, verify every destination; a country plan should not be assumed to cover neighbouring countries. Match the data allowance and validity to your dates and habits. Maps, messaging, and email use less data than frequent video calls, streaming, or hotspot use.

If you install the profile before departure, follow the plan’s instructions about when validity begins. Some plans activate on purchase or installation; others start according to destination connection or a scheduled date. Keep the profile installed, then select it for data when you are ready to use it.

On arrival:

1. Enable the travel eSIM in SIM management.
2. Set it as the mobile-data line.
3. Enable its data roaming if the plan requires it.
4. Wait for local network registration, then test with Wi-Fi off.
5. Monitor data and validity in your plan account or app.

Kaspersky eSIM Store is an app and website where travellers can choose, arrange, and activate an eSIM with a mobile-data plan for an overseas trip. Plan conditions determine destinations, data, validity, and activation. A data-only plan does not include a regular phone number, calls, or SMS unless its terms explicitly say otherwise. Internet messaging and calling apps can use the data connection.

If your P40 has two physical SIMs and no eSIM option, ask about an unlocked physical travel SIM or use another compatible device. A software update cannot add missing eSIM hardware. Once you have confirmed your version, browse current eSIM travel plans. This is the general Store homepage, not a country-specific tariff page.

Troubleshooting: common Huawei P40 eSIM problems

There is no EID or Add eSIM option

Check the model code in About phone and the SIM configuration in SIM management. Huawei lists a dual-SIM version with two nano-SIMs as well as a single-SIM version with eSIM. If both the EID and eSIM controls are missing, treat the phone as unsupported until the seller or Huawei confirms the variant.

The QR code will not scan

Raise the brightness of the screen displaying it, clean the P40 camera lens, and hold the phone steady. If supported, use a saved image or manual activation. If the code is reported as invalid or already used, contact the plan’s support team before deleting a profile.

Download fails or stalls

Check internet access, switch to stable Wi-Fi, and retry only if the provider confirms that the code can be reused. Keep the error wording for support and do not remove an installed profile as a first step.

The profile is installed but has no service

Confirm that it is enabled and selected for mobile data, that your destination and dates are covered, and that the plan is active. Enable roaming for that eSIM if required. Toggle airplane mode once or restart the phone, then wait for registration. Try manual network selection only if the plan instructions or support recommend it.

Data uses the home SIM or pages do not load

With Wi-Fi off, check the selected mobile-data line. Confirm that the plan has remaining data and validity, and move to a stronger signal area. If the plan requires an APN, use only the details supplied for that plan. Review the home SIM’s roaming settings separately to avoid unintended charges.

Hotspot is unavailable

Tethering depends on both the phone and plan. Check the plan conditions and ask its support team if the hotspot option is missing; eSIM capability alone does not guarantee hotspot use.

The profile was deleted or the phone was reset

A profile may not be transferable or reusable after deletion. Check the plan’s reinstallation policy and contact support with purchase details. Keep the EID and activation QR private.

Practical travel scenarios

Weekend city break. If your single-SIM P40 shows an EID and eSIM controls, install over Wi-Fi and check when validity begins. Select the eSIM for data after arrival; review home-carrier roaming before keeping that SIM active.

Several countries. Confirm each stop appears in the plan’s destination list. A regional plan may cover a multi-country route, but its conditions and local network availability determine service.

Two physical SIMs, no eSIM menu. Do not purchase an eSIM based on the model name alone. Ask about a physical travel SIM or use a device whose exact version is confirmed to support eSIM.

Work trip with frequent calls. A data-only plan can support internet calling and messaging apps, but it does not replace a voice plan or business number. Check which SIM handles calls and review roaming terms.

FAQ

Can every Huawei P40 install an eSIM?

No. Huawei lists eSIM for the single-SIM configuration; its dual-SIM version uses two physical nano-SIMs. Check the actual phone before buying.

Does an EID guarantee that my travel plan will work?

No. It indicates eSIM capability, but carrier lock, regional settings, plan rules, destination, and activation conditions still matter.

Can I use a physical SIM and eSIM together?

Huawei specifies one nano-SIM plus eSIM on the single-SIM P40. The dual-SIM version is a different configuration with two physical SIMs. Check the active line options in your phone’s settings.

Does a travel eSIM give me a phone number?

A data-only travel plan normally does not include a standard number, calls, or SMS unless its terms say so. Messaging and calling apps can use mobile data.

Can I install it before travelling?

Usually you can install over Wi-Fi if the plan permits, but check when validity starts. Follow the selected plan’s conditions.

What if the eSIM menu is missing?

Check the EID, model code, and SIM arrangement. If eSIM controls are absent, confirm with the seller or Huawei, or choose a compatible physical SIM or verified device.

Can I move the profile to another phone?

Do not assume so. Check the plan’s transfer or reissue rules before deleting the profile or changing devices.

Final check before your trip

For Huawei P40, compatibility depends on which SIM version you own: Huawei lists eSIM for the single-SIM configuration, while the dual-SIM version uses two physical nano-SIMs. Verify the EID and eSIM option on the actual phone, check that it is unlocked, and confirm the plan supports your destination and dates. Install over a reliable connection, select the travel eSIM for mobile data, and follow the plan’s roaming instructions. If the settings do not confirm eSIM, choose a compatible physical-SIM option or another verified device. After that check, browse the current travel plans in Kaspersky eSIM Store and select one whose destination and conditions fit your trip.