Android eSIM Transfer Failed? Pixel, Samsung & Carrier Fixes

Your new phone has all your apps, yet it cannot make a call. Or the old phone still has signal while the new one says the eSIM cannot be added. Before scanning the same QR code for the tenth time, work out which part of the move stopped: installing a profile, activating the line, or transferring the number.

Quick answer: Keep the old phone and working SIM available, put the new phone on reliable Wi-Fi, and check your carrier's supported transfer method. If automatic transfer is unavailable or the activation code is rejected, use the carrier's replacement-eSIM process. Do not delete the working profile before you have a confirmed recovery route.

Three jobs that look like one transfer

Copying your phone data moves supported photos, apps and settings. Installing an eSIM adds the mobile subscription profile. Porting a number moves a number between carriers. Completing one does not prove that the other two are done.

Imagine moving house: copying the apps is unpacking the boxes; activating the eSIM is connecting the utilities. The boxes can be perfectly arranged while the lights are still off.

What happens	Likely next check	Avoid doing this
No transfer option appears	Carrier, exact model and software compatibility	Assuming the phone is broken
QR code is rejected	Whether it is valid for this activation	Repeatedly deleting and reinstalling profiles
eSIM is installed but there is no service	Activation, selected line and carrier provisioning	Treating profile installation as proof of activation
Old number still reaches old phone	Transfer or port status with the carrier	Erasing the old phone immediately
Calls work, RCS does not	Google Messages registration	Replacing a working eSIM without a reason
Travel eSIM has data but no phone number	What that travel plan actually includes	Expecting SMS from a data-only product

1. Prepare a transfer you can recover from

Connect the new phone to reliable Wi-Fi that does not depend on the line being moved. Keep both phones charged and nearby, and make sure you can unlock them. Keep your carrier account sign-in available through its official app or website.

Google's Pixel transfer guidance lists Android 12 or later, current Google Play services and a screen lock on both devices for its automatic Android transfer method. Those prerequisites do not guarantee that every operator or model supports automatic transfer.

Write down the new phone's exact model and whether it was purchased from another carrier or country. An imported phone may need a compatibility check with the receiving network. If the device is carrier-locked, ask the original operator about eligibility; Android settings cannot override that restriction.

Keep activation QR codes, account PINs, IMEI and EID details private. Share them only through an authenticated carrier channel when requested. Screenshots of activation pages do not belong in public help threads.

2. Try the phone's supported path once

On Pixel, look under Settings → Network & internet → SIMs for the available add or transfer option. On Samsung Galaxy, look under Settings → Connections → SIM manager → Add eSIM. Labels vary with software and operator support.

Use the transfer choice shown on your own phone and approve the request on the old device. If no transfer option appears, it can mean the combination is unsupported rather than that you missed a hidden switch. Google's Pixel guidance directs users to the carrier when automatic detection or activation fails.

For T-Mobile in the US, the official SIM/eSIM page provides separate Samsung and Pixel setup routes. Follow the route for your actual device and account rather than a screenshot from another carrier.

After an unsuccessful attempt, check both phones. If the old line still works, preserve it while you resolve the next step. If neither works, contact the carrier over Wi-Fi and explain that service was lost during the change.

3. Choose your carrier's recovery route

This table points to verified official help pages. It is not a promise that all plans support the same transfer feature, and a brand's instructions in one country do not automatically apply in another.

Market and carrier	Official starting point	What to establish
US: T-Mobile	SIM and eSIM setup	Correct Samsung or Pixel activation route
US: Verizon	SIM and eSIM troubleshooting	Whether the installed profile and device are activated correctly
Canada: Rogers	Activate or change a SIM	The replacement process for your existing line
UK: EE	Download, replace or transfer an eSIM	Android setup versus replacement through the EE app
Germany: Vodafone	Official eSIM help	Whether your device supports direct transfer or needs a new activation profile

For EE, the official guide distinguishes moving between Android devices from recovering a deleted profile or moving from iOS. Its app replacement route is Manage → Mobile and SIMs → Check Settings → Replace my SIM/eSIM. Use that only for your own EE line and follow any account checks shown.

For Rogers, changing the SIM attached to an existing account is distinct from bringing a number from another network. If you are porting, consult the separate number-transfer instructions and retain access to the old line for any required approval.

If you use AT&T, Bell, Telus, O2, Three, Orange or another operator, start inside that operator's official account or support service. Ask for the current replacement-eSIM process for your exact Android model. Borrowing another carrier's activation steps can send you in circles.

4. QR code rejected or already used?

First confirm that you are scanning the activation code intended for this line and device, not a phone-data migration QR code. They serve different purposes even when they appear during the same setup session.

If the carrier says the code has already been used, expired or is invalid, request its replacement procedure. Repeated scans do not change the account state behind a rejected code. Do not assume that a screenshot saved from a previous activation can be reused.

Have a laptop or second device available to display a fresh QR code if that is the carrier's method. If you cannot sign in because verification messages go to the now-inactive line, tell support that explicitly and ask for its account-recovery process. Do not give a third-party “activation service” your carrier credentials.

5. Installed, but still no signal

Check whether the new eSIM is enabled and selected for the function you are testing: calls, SMS or mobile data. With two lines enabled, an outgoing test can accidentally use the wrong subscription.

Restart once after the carrier confirms activation. Then test with Wi-Fi switched off briefly: load a webpage using mobile data, make a normal call, and have someone send an ordinary SMS. This checks the line more usefully than staring at signal bars.

If a test fails, report which one. “Calls work but incoming SMS fails” helps separate a messaging or number-routing issue from total activation failure. Google's Pixel connectivity guide also distinguishes inactive or missing SIMs from broader mobile connection problems.

Do not begin changing APNs using values from another country. Follow settings supplied by your own operator only if it identifies an APN problem. A fresh eSIM profile is not a universal answer to every weak-signal location either.

6. Moving between Android and iPhone, or traveling abroad

Do not assume that an Android-to-Android transfer button also supports an iPhone. Cross-platform availability depends on software, models and carrier participation. Use the operator's current route for that specific direction of transfer; a replacement profile may be the supported option.

A travel eSIM is another separate case. Check whether the plan includes a phone number, SMS, roaming configuration and the destination you are in. Turning on data roaming may be part of a travel provider's instructions, but applying it blindly to your primary line can incur charges. Read the plan's directions before changing it.

Once calling and SMS work on the new phone, follow our RCS registration guide if Google Messages still cannot connect. Keep the working line intact while troubleshooting the app.

Frequently asked questions

Will Smart Switch transfer my eSIM automatically?

Do not infer that from a successful data copy. The operator and device determine the subscription-transfer route. Check the SIM manager and complete any separate activation instructions before retiring the old phone.

Should I delete the old eSIM first?

Follow the carrier's specific sequence. Do not manually remove a still-working profile merely because a generic guide says it “clears the way.” Confirm how you will restore service if the new activation fails.

Can Droid Rooter activate a carrier account for me?

Carrier identity checks and subscription provisioning belong to the operator. Droid Rooter can help with Android setup questions, but the carrier must resolve account restrictions, replacement profiles and failed number transfers.

When is the transfer finished?

When the intended number can receive calls and SMS on the new phone, and the correct line can use mobile data under your plan. Verify those separately before erasing, trading in or selling the old device.

Sources and review notes

Technical guidance reviewed September 12, 2026. Carrier links were checked separately for the markets listed. Procedures and supported devices change; the authenticated carrier instructions take precedence for your line.