You sent a message to iPhone a friend on Androidbut it never arrived - is this a familiar situation? This problem occurs more often than it seems, and is often associated not with a breakdown of the phone, but with the operating features of instant messengers, operator settings, or data transfer protocols. Unlike the exchange of messages between devices of the same ecosystem (for example, iPhone-iPhone via iMessage), sending SMS to Android requires the correct operation of the standard protocol SMS —and here technical nuances may interfere.

B In this article we will look at why SMS from 7 key reasons, why SMS with iPhone do not reach devices - from trivial errors in the settings to problems on the side of the telecom operator. You will learn how to check Android-devices, from trivial errors in settings to problems on the telecom operator’s side. You will learn how to check iMessagewhy green messages may not be sent, and what to do if the problem lies in the SIM card or network settings. And also - get a checklist for quick diagnostics and instructions for restoring functionality.

Spoiler: in 80% of cases the problem is solved in 5 minutes without contacting the service center. But there are also more complex scenarios - for example, when the operator is to blame or there are hardware faults. Let's look at it in order.

📊 How often do you encounter problems sending SMS?
Constantly
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It happened before, but it was resolved
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1. iMessage "eats" your SMS: why messages go nowhere

The most common reason why SMS from iPhone do not reach Android is active iMessage. The fact is that by default it tries to send a message through its proprietary service (blue bubbles), and only if this is impossible, it switches to the standard one (green bubbles). If a contact was once associated with Apple by default tries to send a message through its proprietary service iMessage (blue bubbles), and only if this is not possible, switches to standard SMS (green bubbles). If the contact was once associated with iCloudbut now uses Android, iPhone may persistently try to send a message via iMessage —and as a result it simply disappears.

How to check this? Open a chat with a problematic contact: if the bubbles are blue, it means that it believes that messages are sent via iPhone believes that messages are sent via iMessage. Even if the recipient switched to Androidlong ago. The solution is simple: forcefully disable iMessage for this contact.

  • 📱 Open application Messages on iPhone and find a dialogue with the contact.
  • 🔍 Press to the name/number at the top of the screen, then select Information.
  • 🚫 Scroll down and press Send as SMS (if the option is active) or Send as message.
  • 🔄 Reboot iPhoneif messages are still not sent.

If the problem persists, the contact may still be associated with Apple ID in the database Apple. Ask him disable iMessage on the old iPhone (if there is one) or remove your number from iCloud via the web interface Apple Self-Solve.

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If you recently switched from iPhone to Android, be sure to disable iMessage on the old one device or through the Apple website. Otherwise, your iPhone contacts will not be able to send you SMS!

2. Problems with the SIM card or operator: when it’s not the phone’s fault

If iMessage is disabled, but SMS are still not sent, the next thing you need to check is SIM card and operator settings. Here are the most common scenarios:

  • 📶 No network: iPhone cannot connect to the cellular network (no antenna icon or status SOS).
  • 🔄 Roaming: you are abroad and the operator blocks sending SMS to roaming.
  • 💳 SIM blocked: the card is inactive (for example, the tariff has expired or there is a debt).
  • 🔧 Incorrect APN settings: network access parameters have been lost after updating iOS.

First make sure that iPhone sees the operator's network. If the network icon is missing or is displayed Search...try:

  1. Restart phone.
  2. Turn on/off mode Airplane mode (Settings → Airplane mode).
  3. Check, are there restrictions on cellular communications (Settings → Screen Time → Restrictions → Allowed applications).
  4. Remove and insert back SIM card (after turning off iPhone).

If there is a network, but SMS are not sent, contact your operator. Some providers (for example Tele2 or Yota) may have restrictions on sending SMS to numbers of other operators. It is also worth checking whether messages are blocked due to spam filters.

Make sure that the iPhone sees the operator’s network (antenna icon). data-i="122">Check the balance and status of the SIM card (no blocking)

Check the balance and status of the SIM card (no blocking)

Reboot the phone and turn on/off Airplane mode

Remove and insert the SIM card back

Contact the operator to check restrictions-->

3. Message settings: why green SMS do not go through

Even if iMessage is disabled and the network is working, SMS may not be sent due to incorrect settings. "Messages" applicationHere is what you need to check:

  1. Message format: go to Settings → Messages and make sure that the Send as SMSoption is enabled. If it is turned off, iPhone will try to send a message only through iMessage.
  2. SMS Center: in some countries you need to specify the number SMS center (SMSC). Check it with your operator and enter it in Settings → Messages → SMS center.
  3. Length limitation: if the message is too long, it may be split into several parts, and not all of them will reach the recipient. Try sending a short SMS (for example, "test").

It is also worth checking if the mode is enabled Do not disturb for a specific contact or whether it has been added to the blacklist. To do this:

  1. Open a chat with the contact in Messages.
  2. Click on the name/number → Information.
  3. Make sure Do not disturb is turned off and there is no lock icon.
Problem Symptoms Solution
Disabled Send as SMS Messages are not sent to Android, but are sent to iPhone Enable the option in Settings → Messages
Invalid SMS center SMS are not sent to any numbers Check the SMSC number with the operator and enter it in the settings
Contact on the black list Messages do not reach only one addressee Check Settings → Messages → Blocked
Operator restriction SMS are not sent to numbers of other operators Contact support provider
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If SMS are not sent only to Android, but are sent to other iPhones, the problem is definitely in the iMessage settings or message format.

4. Software failures: when iOS is to blame

Sometimes the cause is glitches in the operation of iOS - especially after updating the system or restoring from a backup. Here are the symptoms of a software failure:

  • 🔄 Messages are "stuck" in the status Sending....
  • 📱 Application Messages crashes or slows down.
  • 🚨 A notification appears Failed to send a message without explanation.

What to do in such cases:

  1. Update iOS up to the latest version: Settings → General → Software update.
  2. Reset network settings: Settings → General → Transfer or reset iPhone → Reset → Reset network settings. This will delete saved Wi-Fi passwords and VPN settings, but will not affect personal ones data.
  3. Reinstall the operator profile (if it exists): Settings → General → About this device → Operator version.
  4. Restore iPhone via iTunes/Finder (extreme case).

If the problem appeared after updating iOS, check the forums Apple (for example, Apple Support Communities) - perhaps this is a massive bug, and Apple already working on a fix.

What to do if resetting the network did not help?

If, after resetting the network settings, SMS are still not sent, try:

1. Delete and re-add the mailbox to iCloud (sometimes this resets the iMessage cache).

2. Disable iMessage for 10 minutes, then turn it back on.

3. Check if a VPN or proxy is enabled - they can block SMS traffic.

5. Hardware faults: when repairs are unavoidable

If all software methods have been tried, but SMS still are not sent, possible hardware problems. Most often the culprits are:

  • 📡 Modem (chip responsible for cellular communications).
  • 🔌 Antenna block (damaged after a fall or moisture).
  • 🔋 SIM tray (contacts are oxidized or bent).

How to diagnose a hardware fault:

  1. Check another SIM card in this iPhone. If SMS are sent with it, the problem is in your SIM or operator account.
  2. Insert your SIM into another phone. If SMS are sent, yours is faulty iPhone.
  3. Pay attention to other communication functions: do calls, mobile data work? FaceTime. If not, the problem is definitely in the communication module.

If your suspicions are confirmed, contact the service center. Repairing a modem or antenna costs 3-8 thousand rubles (depending on the model iPhone), but sometimes it is cheaper to replace the phone - especially if it is an old model (for example, iPhone 6/7).

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Before visiting the service center, make a backup copy of your iPhone via iCloud or iTunes - after repair, you may need to reset the settings.

6. Alternative methods of sending messages on Android

If standard SMS still does not work, you can use alternative methods sending messages to AndroidHere are the most reliable options:

  • 💬 Messengers: WhatsApp, Telegram, Viber. They work via the Internet and do not depend on the SMS protocol.
  • ✉️ Email: send a letter to the address associated with Google account the addressee.
  • 🌐 Web versions of SMS: some operators (for example, MTS, Beeline) allow you to send SMS through your personal account on the website.
  • 📱 Applications for SMS: Google Messages (there is a web version), TextNow, Pinger.

If you often communicate with users Android, it makes sense to switch to cross-platform messengers. For example, WhatsApp supports end-to-end encryptionsending media files and does not depend on the telecom operator. A Telegram allows you to create channels and groups with an unlimited number of participants.

Suitable for business correspondence Slack or Microsoft Teams —they integrate with corporate systems and support history messages.

7. How to prevent problems with SMS in the future

To avoid problems with sending SMS from iPhone to Android, follow these recommendations:

  • 🔄 Update iOS regularly —bugs with sending messages are fixed in new versions.
  • 📱 Check your iMessage settings after changing SIM card or operator.
  • 🔋 Use backup (iCloud or iTunes) to quickly restore settings after a failure.
  • 💬 Set up alternative communication channels (messengers, email) for important contacts.

If you often encounter SMS problems, consider using virtual numbers (for example, Google Voice) or enterprise messaging solutions. They are more reliable than standard SMS and do not depend on the operator.

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The most common cause of problems is a forgotten iMessage. Always turn it off when switching to Android or changing your number!

FAQ: Frequently asked questions about problems with SMS between iPhone and Android

Why are SMS sent to iPhone, but not to Android?

Most likely, you have it turned on iMessage, and iPhone tries to send a message through it, and not as a standard SMS. Disconnect iMessage for a problematic contact or completely in the settings.

How to check if iMessage is enabled for a specific contact?

Open a chat with the contact in Messages. If the bubbles are blue - iMessage active. If green, SMS is used. To force send as SMS, click on the contact name → Information → Send as SMS.

What to do if the operator blocks SMS?

Contact with operator support and check if there are any restrictions on sending SMS. You may need to top up your balance, activate a service, or change your tariff. Also check if the mode is enabled Saving traffic in your personal account.

Is it possible to send SMS from iPhone to Android via the Internet?

Standard SMS are sent only via the cellular network. However, you can use instant messengers (WhatsApp, Telegram) or operator web services (if they support sending SMS via the Internet).

Why did SMS stop being sent after the iOS update?

The settings APN or the operator profile may have gone wrong. Try resetting your network settings (Settings → General → Transfer or reset iPhone → Reset → Reset network settings) or reinstalling your operator profile.