How to receive Chinese SMS abroad
Moving abroad does not detach you from your home number. Banks, Alipay, WeChat recovery, brokerages, tax and social-security portals all keep sending codes to the number they have on file, and most of them will not let you change it to a foreign one. Here is how people actually solve this, in rough order of how well it holds up.
Why the codes stop arriving
There are usually three separate problems stacked on top of each other, and it helps to know which one you have.
- The SIM is not in a phone you can reach. It is in a drawer at home, or in a second handset you left behind.
- The SIM is with you, but international roaming is not active, or the plan does not include it. Inbound SMS while roaming generally has to be enabled on the account before you leave.
- Roaming is active and ordinary texts arrive, but the ones you need do not. Bank and platform codes in China are sent from 106-prefix service gateways, and those messages are frequently not delivered to a roaming handset. This is the failure that confuses people most, because personal texts from friends come through fine.
The options
| Approach | Holds up? | Notes |
|---|---|---|
| Take the SIM with you and roam | Partly | Fine for personal messages. Unreliable for 106-gateway codes, and roaming fees add up if the plan is not built for it. |
| Ask a relative to read the phone and message you the code | Poorly | Works exactly once, at a convenient hour. Codes usually expire in 5–10 minutes and time zones are unkind. |
| Carrier forwarding to an overseas number | Rarely | Availability is limited and gateway messages are often excluded from forwarding for the same reason they are excluded from roaming. |
| Leave the phone in China, relay over the internet | Well | The SIM stays on its home network, so gateway codes deliver normally. The message is then pushed to you as data. This is why it works where roaming does not. |
Leaving a phone behind, done properly
The relay approach only works if the phone in China stays alive and online. Set it up before you leave, not over a video call afterwards.
- Use a spare Android phone, not your old daily driver with a swollen battery. It will be plugged in continuously for years.
- Plug it into a charger permanently and leave it somewhere with stable Wi-Fi. A relative’s spare room is ideal.
- Install SMS Link, sign in, and grant SMS permission. On Xiaomi, Redmi and POCO you must also turn on notification / service messages by hand — the standard permission does not cover verification codes. Settings → Apps → SMS Link → Permissions → SMS and MMS.
- Turn off battery optimisation for the app, and turn off any scheduled overnight power-saving the phone has.
- Disable automatic system updates if the phone tends to reboot into a lock screen that needs a PIN. A reboot you cannot clear remotely takes the whole thing offline.
- Install SMS View on your iPhone or laptop abroad, sign in with the same account, and send a test message before you fly.
What to check first when a code does not show up
- Is the phone in China still online? A good relay app shows last-seen time. If it is hours old, the phone lost power or Wi-Fi.
- Did the phone reboot? Open the app once after any restart to confirm it resumed.
- On Xiaomi: is the notification-messages permission still on? A system update can reset it.
- Is the number still in service? An unpaid or dormant line stops receiving before it is fully cancelled.
- Did the sender use a voice call instead? Some platforms fall back to an automated call, which no SMS relay can capture.
A note on what this is and is not
This is a way to reach your own messages on your own SIM. It is not a way to read anyone else’s, and it is not a substitute for a virtual number service if what you want is a fresh Chinese number you never had. It also cannot send on your behalf — if a service requires you to reply to a text, you will need someone at the phone.
FAQ
Why do I get texts from friends but not from my bank?
Bank and platform codes come from 106-prefix service gateways in China, and those messages often are not delivered to a roaming handset even when ordinary person-to-person SMS is. Keeping the SIM on its home network and relaying the message over the internet avoids the problem entirely.
Can I just use an eSIM?
An eSIM changes how the SIM is provisioned, not where the message is delivered. If the line is roaming internationally, gateway delivery has the same problem.
How long will my number stay active if nobody uses it?
Chinese carriers reclaim dormant numbers, but the window differs by carrier and plan. Keep a balance topped up and generate some activity now and then rather than relying on a specific number of months.
Does the phone in China need a data plan?
It needs some connection. Wi-Fi is enough and cheaper. A small data allowance is worth having as a fallback for when the household router goes down.