How to fix Huawei P20 Pro No Service error

Hello fans of Android! Today's article talks about a Huawei P20 Pro having a No Service error. The problem is not as common as in Samsung Galaxy devices, but a number of Huawei P20 Pro meet him from time to time. If you are one of them, find out the steps below to fix it.

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Problem: Huawei P20 Pro Service Error

Hi guys. My phone was working fine yesterday and during my travels, I bought a local SIM card, I inserted it in the tray and activated it. I then turned off and turned on the phone again. 10 minutes later, (I read the SIM card correctly), I had the No Service bug. Every time I restart the phone, the SIM card is detected for 10 to 20 minutes, then No Service. I have tried using my original SIM card and the same error occurs. Please, could you advise? I do not know what else to do !! Thank you.

Solution: The No Service bug on any smartphone may be caused by a problem with the phone itself or by a network-side issue. To find out where the problem is, you need to follow a number of troubleshooting procedures.

Solution 1: Restarting the Force

The error No service on your Huawei P20 Pro may be caused by a temporary bug. The first step in troubleshooting that you must do is force the restart. This will force the device to refresh. In this particular case, you want to simulate the effects of a "battery extraction". Your Huawei P20 Pro does not have a removable battery, you must keep it pressed until the screen becomes black. If there is a temporary bug that causes the bug without service, it might help. Otherwise, proceed to the next suggestion below.

Solution 2: Empty the partition of the cache

Clearing the cache partition can be useful in this case. Sometimes the system cache may be corrupted after an update or for other reasons. To keep the system cache at its best, you can regularly delete the current cache. Your device will rebuild this cache in extra time so that you do not fear losing important data. Here's how:

Turn off the device.
When your phone is off, press and hold the Volume and Power buttons simultaneously for at least 10 seconds.
Release the buttons when the Honor logo appears.
Shortly after seeing the logo, the EMUI screen appears with the recovery mode options.
Press the Volume Down button to scroll and highlight the Clean Cache Partition option.
Then press the power button to confirm the selection.
Use the volume buttons to scroll through the following options and highlight them, then press the power button to confirm your selection.

Solution 3: Reset the Network Settings

If clearing the cache partition does not help, the next troubleshooting procedure is to clear the current network configuration. This will clear the last network configuration. Hopefully this will allow the new configuration to remain final. To reset the network settings:

Open the Settings application.
Access advanced settings.
Scroll to and press Save and reset.
Select Reset Network Settings from the given options.
If prompted, read the warning message and then press Reset Network Settings twice to confirm.

Solution 4: Reinstall the SIM Card

The number of the message center is one of the fundamental elements to check to solve this problem. If the information on this number is incorrect, your device can still receive text, but not send it. Reinserting the SIM card on your Huawei P20 Pro should ensure that the CMN is correct. Before removing and inserting the SIM card, make sure that it is disabled.

Solution 5: Use another SIM card

If you own another compatible SIM card from the same operator, we suggest you to use it and see how your Huawei P20 Pro will work. Be sure to follow this configuration for at least one hour. If everything works during this period, it is a SIM card problem. If the same problem occurs, continue troubleshooting the device.

Solution 6: Install the Updates

Some network problems can only be solved by installing new operating system or modem updates. Make sure your device is running the latest version of the operating system. Known network bugs are fixed by updating the firmware (OS) or modem firmware (baseband) from time to time. To check for updates for your device, follow these steps:

Access the settings.
Tap system.
Select System Update.
Tap the Check for Updates option.

To search for pending application updates that you have downloaded through the Google Play Store app, launch Play Store, then go to the Updates section. You will then see a list of applications with pending updates. Just tap Update to install individual apps updates or Update all to update apps simultaneously.

Do not forget to restart / reset your P20 after installing updates to make sure all new software changes are correctly implemented and to prevent any application from becoming false.

Solution 7: Change the SIM Card

The replacement of the SIM card is a necessity if the previous troubleshooting described above there was no problem of device. Although it has no moving parts, a SIM card can be a problem if its data is corrupted or physically damaged. In some cases, network issues may also affect certain accounts that are related to particular SIM cards.

Solution 8: Reset your your Huawei P20 Pro

To solve any unknown phone problem preventing the sending of texts, you want to reset your device to the factory. Be sure to back up all your personal data in advance.

Turn off the phone.
Then turn the phone while holding down the following key combination: Power Button Volume Up Button
Press the buttons until the Huawei logo disappears from the screen and the screen turns black.
You can now release the buttons.
This will now display the boot menu after a while.
Go to the "Wipe Cache Factory Reset" entry with the volume keys and select it with the help of the start / stop key
Restart the phone once the process is complete

Solution 9: Contact your network operator

If none of the above solutions works, you must get help from your operator. Be sure to mention all the solutions you have tried so that they do not require you to redo them. Some connection problems are due to network failures or technical issues on the firmware side. If many users experience the same problem, your network operator should already be working on a fix. If the problem is recent, telling them about it should encourage them to create a ticket and monitor the situation.

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