How to Fix SMS Fails to Send in Android

There are many reasons why you cannot send SMS on Android (or received, but this article focuses on shipping errors). if you can’t obtain SMS you can check if the phone is not receiving any SMS.

However, if you can obtain Lyrics ok, but your lyrics always fail send to, the problem is probably with your SMSC number. This is not a hardware or software issue; Factory resetting your phone won’t do anything. This is because the SMSC number is actually on your SIM card and not your device.

In this article, we will share different methods to fix SMSC number on your Android device.

SMSC is not configured correctly

An often overlooked problem is a misconfigured SMSC number. The SMSC is responsible for sending SMS messages from your device. When you send an SMS message, it is forwarded to the SMSC, which then sends it to the destination. Your SIM provider is responsible for maintaining the SMSC network.

If you have a misconfigured SMSC, it will continue obtain SMS, as the other person’s SMSC forwards messages directly to your SIM number. But your SMS is not sent because your SMS does not reach your operator’s SMSC. See this simplified diagram:

This is how texting works.

There are many ways your SMSC was misconfigured or accidentally deleted. In this personal experience, my SMSC got wiped when I downloaded a root app that was supposed to enable VoLTE. Lesson learned: Apps that “change” your phone’s settings are probably a bad idea if you don’t know exactly what they’re doing.

Solution 1: Set up SMSC from the phone’s secret menu

This method works for the most part: it is the most recommended method by all experts. It didn’t work for me personally. When I tried to insert my provider’s SMSC number into the SMSC field, the menu returned a “Failed” error. It was whether or not the SMSC should be converted to a PDU. So if you fail with this method as well, try the next one.

  1. Bring your telephone dialer.
  2. Enter the number *#*#4636#*#*
  3. A menu will open. Choose “phone information“.
  4. Scroll down to SMSC and press ‘To update‘. This should attempt to automatically set your SMSC number correctly.
  5. If it fails (‘update error’)You can try to set it manually.
    SMSC update failed.
  6. In the SMSC field, enter yours SMSC number of the network operator.
  7. After entering the SMSC number, press ‘To update‘.

If you don’t know your carrier’s SMSC, you can try checking a list of global SMSC numbers for the most popular carriers by country. However, these lists may be out of date; It is best to contact your provider to get the correct SMSC number.

when you receiveUpdate failedWhen adding the SMSC manually, many users recommend converting the SMSC number to PDU format. This didn’t work for me personally, but I’m listing the steps in case it works for you.

  1. Go to this website – Online PDU Encoders and Decoders.
  2. Scroll to the bottom of the page where there is a box for SMSC to convert.
    Convert SMSC to PDU.
  3. Delete the text in the fields for “Key” and the message box above “Convert” button.
  4. Enter your SMSC number in the SMSC field and click Convert.
  5. The box on the right creates a series of letters and numbers. You need the first 16 digits of 2n / A Line (highlighted on our screenshot).
  6. Enter this PDU number in the SMSC field and try “To updateIf that still fails, try adding a + Characters at the beginning of the PDU number. If that quiet fails, try the following method.

Solution 2 – Set SMSC to the default messaging app

Many of us like to download alternative SMS apps to the ones that come with our devices. Apps like Textra, Chomp, EvolveSMS, and even Facebook Messenger’s SMS feature seem to be more elegant alternatives to the default app.

If you’re a root user who likes to bleed your phone, chances are you’ve also disabled the default SMS app. The funny thing is that the default SMS app usually has an option to set the SMSC number, unlike most third-party SMS apps. This is typical as the default SMS app is a system app with permissions to change the SMSC, but third party apps are not.

If all of this sounds like your scenario, try this.

SMSC settings in the default SMS app.
  1. Fury Settings > ApplicationsFind your default SMS app (which came preinstalled on your phone).).
  2. Tap on it and make sure it’s not disabled. If yes, enable it.
  3. Now launch the SMS app and locate the SMSC settings. On my device it was in the app. Settings > SMS Settings > SMS Service Center.
  4. Enter your SMSC, save it and try to send an SMS.

If it is sent, the problem is solved! You can now switch back to the texting app of your choice, but don’t disable the default texting app. Third party apps can actually rely on the default SMS app settings.

Solution 3: Reset SMSC on another phone

If nothing has worked for you so far, some people report that they can fix the problem by setting the SMSC to a another phone, and then put the SIM card back into the one you’re having trouble with.

  1. Remove the SIM card from your device and insert it into another phone. Even an old Nokia should work for this.
  2. Find her SMS/SMSC settings on the other phone and set it up properly. It’s important to remember that SMSC settings aren’t actually stored on a phone, they are stored sheor the SIM card itself. So the correct SMSC settings will remain when you go back to your regular phone.

One user reported that this method didn’t work until they took an extra step:

“I put my SIM card in old Nokia 6120 C, then this time I change SMS settings. I changed the name of track used here. Switching from “Pusat Pesan SMS” to Message Center is successful.

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