How to troubleshoot EMERGENCY CALLS ONLY bug on Galaxy S10 | fix No Service issue

Are you having you getting No Service issue or EMERGENCY CALLS ONLY bug on your Galaxy S10? Learn how to fix it in this article.

How to troubleshoot EMERGENCY CALLS ONLY bug on Galaxy S10 | fix No Service issue

EMERGENCY CALLS ONLY can occur for a number of factors. Learn how to deal with this bug by following our suggestions below.

EMERGENCY CALLS ONLY fix #1: Reboot the device

Refreshing your S10 is an important troubleshooting first step in this case.  EMERGENCY CALLS ONLY bug sometimes occur when a device temporarily loses connection from a cell tower, like when you’re travelling. Once you’re in a location with good service,  EMERGENCY CALLS ONLY disappears. In some cases though, this does not happen and the bug sticks. You’ll need to manually turn off the device in order to refresh the system. Make sure to do a soft reset to achieve this. Here’s what you need to do:

  1. Press and hold the Power + Volume Down buttons for approximately 10 seconds or until the device power cycles. Note: Allow several seconds for the Maintenance Boot Mode screen to appear.
  2. From the Maintenance Boot Mode screen, select Normal Boot. Note: Utilize the volume buttons to cycle through the available options and the lower left button (below the volume buttons) to select. Also, allow up to 90 seconds for the reset to complete.

EMERGENCY CALLS ONLY fix #2: Check if cellular service is working

If nothing changes after restarting your S10, the next troubleshooting step that you can do is confirm there’s no problem with network services in your area. If you have another phone that’s compatible with your network, use that to check. If the second phone shows the same bug, you must contact your network operator for help. There must be a problem with your carrier’s service where you’re at so it’s good if you can get first-hand confirmation from them.


Sometimes, network issues occur if the SIM card is not properly inserted in the tray, or if it’s not making good contact with the board. To fix the problem, turn off your device and remove the SIM card tray. Then after 5 seconds, reinsert the SIM card, making sure that the card fits snugly in the slot. Afterwards, turn your phone back on and see what happens.

EMERGENCY CALLS ONLY fix #4: Get a new SIM card

If you suspect that there may be a problem with the current SIM card, try to get a new one or visit your local carrier and have the card replaced. This is a good way to make sure that there’s no problem with the SIM card you’re using moving forward.

EMERGENCY CALLS ONLY fix #5: Disable Fixed dialling (if you’re using it)

Fixed dialing services may sometimes interfere with regular network functions. If you have fixed dialling on your account, try to disable it and see if that will make a difference. Just ignore this suggestion if you have postpaid subscription, or if you don’t use it.

EMERGENCY CALLS ONLY fix #6: Toggle Airplane or Flight Mode

Some users have reported to have fixed EMERGENCY CALLS ONLY bug after turning on and off Airplane Mode on their device. Make sure to try it on your device. Follow these steps to turn off Airplane Mode on and off:

  1. On any screen, pull down the notification bar from the top.
  2. Find Airplane Mode icon and tap it.
  3. After a few moments, tap it again.

EMERGENCY CALLS ONLY fix #7: Manually change network mode

While restarting the device and reseating the SIM card can refresh the network settings, there’s another way to achieve the same. In many cases, this method is even more effective than restarting or reseating the SIM card. This method is manually changing the network mode. Here’s how to do it:

  1. Open Settings app.
  2. Tap Connections.
  3. Tap Mobile networks.
  4. Tap Network operators.
  5. Tap Select manually.
  6. Wait for your device to search for networks.
  7. Once it’s done searching,, select another network to connect to. For example, if you’re on T-Mobile, pick AT&T or any other network.
  8. Your phone will be forced to return with an error because it won’t be able to register successfully.
  9. Afterwards, select your own network again and see if your device will now be able to re-register and fixed the EMERGENCY CALLS ONLY bug.

EMERGENCY CALLS ONLY fix #8: Wipe cache partition

In order to load apps quickly, Android uses a set of temporary files called system cache. Sometimes, this cache may become corrupted or outdated resulting to performance problems or bugs. To see if you have a bad cache problem, try to delete the system cache with these steps:

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  4. Press the Volume down key several times to highlight ‘wipe cache partition’.
  5. Press Power button to select.
  6. Press the Volume down key until ‘yes’ is highlighted and press the Power button.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

Clearing the cache partition can be done safely and it won’t result to loss of your personal data. There’s no need to worry about losing your important data at this time.

EMERGENCY CALLS ONLY fix #9: Confirm IMEI is not blocked

If you got your S9 as a pre-owned device, or if you suspect that it may be blocked, you can check its IMEI status. Carriers may block a device for a variety of reasons and if that occurs, its IMEI may also be blacklisted. To check the status of your device’s IMEI, you can go to this site: imei.info.

Alternatively, you can check if your S8’s IMEI has been blocked by doing these steps:

  1. Open the dialer (Phone) app.
  2. Enter the code:  (*#06#).
  3. If the IMEI says Null, that means that the EFS folder may be corrupted, or may had been blocked. In this case, you can try to reflash the firmware and see if that will restore the default EFS folder. If that won’t work, your S8 will never be able to connect to any network.

Some carriers may block users from accessing advanced menus thru the dialer app. If nothing happens after you enter (*#06#), that means your S8 can’t open advanced menus.

EMERGENCY CALLS ONLY fix #10: Reset network settings

Clearing the current network settings sometimes help in fixing network troubles. Be sure to do so if none of the above solutions has helped.  To do that, follow these steps:

  1. Open Settings app.
  2. Tap General management.
  3. Tap Reset.
  4. Tap Reset Network Settings.
  5. Tap RESET SETTINGS button.
  6. The steps above will reset wifi, mobile data, and bluetooth settings. This means that you’ll have to enter wifi passwords, re-pair Bluetooth devices, or re-enter VPN credentials again.

EMERGENCY CALLS ONLY fix #11: Restore software settings to defaults (factory reset)

The final troubleshooting step that you can do on your device is to wipe it with factory reset. Make sure to back your personal data up before you do it:

For reference, here are the two ways to factory reset your device:

Method 1: How to hard reset on Samsung Galaxy S10 via Settings Menu

  1. Create a backup of your personal data and remove your Google account.
  2. Open Settings app.
  3. Scroll to and tap General management.
  4. Tap Reset.
  5. Select Factory data reset from the given options.
  6. Read the information then tap Reset to continue.
  7. Tap Delete All to confirm action.

Method 2: How to hard reset on Samsung Galaxy S10 using hardware buttons

  1. If possible, create a backup of your personal data ahead of time. If your problem prevents you from doing that, then simply skip this step.
  2. Also, you want to make sure that you remove your Google account. If your problem prevents you from doing that, then simply skip this step.
  3. Turn off the device. This is important. If you can’t turn it off, you’ll never be able to boot to Recovery Mode. If you are not able to shut the device off regularly via the Power button, wait until the phone’s battery is drained. Then, charge the phone for 30 minutes before booting to Recovery Mode.
  4. Press and hold the Volume Up button and the Bixby button at the same time.
  5. While still holding the Volume Up and Bixby keys, press and hold the Power button.
  6. The Recovery screen menu will now appear. When you see this, release the buttons.
  7. Use the Volume Down button until you are highlighting ‘Wipe data/factory reset.’
  8. Press the Power button to select ‘Wipe data/factory reset.’
  9. Use Volume Down to highlight Yes.
  10. Press the Power button to confirm factory reset.

Contact your network operator

If all these device troubleshooting won’t work at all, you can assume that the problem is not within the device itself. It’s most probably coming from your network so be sure to get help from them.

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