Fix No Service Error on Huawei P10: Step-by-Step

This guide walks you through the most common and effective ways to fix the “No Serviceâ€� error on a Huawei P10. The problem usually comes from a SIM card issue, a network settings glitch, or a software bug, and most fixes take less than five minutes. You will need your phone, your SIM card (and possibly the ejector tool), and access to your phone’s Settings menu.

What You’ll Need

• Your Huawei P10
• The SIM ejector tool (or a small paperclip)
• Your SIM card
• A stable Wi-Fi connection (for some steps)

Step-by-Step

1. Check the basics first. Make sure Airplane Mode is off (swipe down from the top of the screen and check the airplane icon). Also, confirm that mobile data is enabled in Settings > Wireless & networks > Mobile network.
2. Toggle Airplane Mode. Turn Airplane Mode on, wait about 10 seconds, then turn it off. This forces the phone to re-register with your carrier’s network. If you see the signal bars return, you are done.
3. Restart your phone. Press and hold the power button, then tap “Restart.� A simple reboot clears temporary software glitches that often cause the phone to lose its network connection.
4. Re-seat the SIM card. Power off the phone. Use the ejector tool to open the SIM tray (located on the left edge of the phone). Remove the SIM card, check it for any visible dirt or damage, and wipe the gold contacts gently with a dry cloth. Reinsert the SIM card firmly, making sure it sits flat in the tray, and push the tray back in. Power the phone on.
5. Check the SIM card in another phone. If you have access to another phone (unlocked or from the same carrier), insert your SIM card there. If it works, the problem is with your P10. If it also shows “No Service,� your SIM card is likely faulty or deactivated, and you should contact your carrier for a replacement.
6. Manually select your network. Go to Settings > Wireless & networks > Mobile network > Network operators. Turn off “Select automaticallyâ€� and wait for the list of available networks to appear. Tap your carrier’s name. If it connects, the issue was an automatic selection glitch. If it fails, move to the next step.
7. Reset network settings. Go to Settings > System > Reset > Reset network settings. This will erase saved Wi-Fi networks, Bluetooth pairings, and VPN settings, but it will not delete your photos, apps, or personal files. Confirm the reset and let the phone restart. You will need to reconnect to your Wi-Fi afterward.
8. Update your phone’s software. Go to Settings > System > Software update. If an update is available, download and install it over Wi-Fi. Huawei regularly releases patches that fix network-related bugs. Make sure your battery is above 50% or plug the phone in during the update.
9. Check for carrier-specific settings. Some carriers require an Access Point Name (APN) to be configured. Go to Settings > Wireless & networks > Mobile network > Access Point Names. If the list is empty or has a wrong entry, contact your carrier for the correct APN settings and add them manually.
10. Try a factory reset (last resort). Back up your data first (photos, contacts, messages) to your Google account or a computer. Then go to Settings > System > Reset > Factory data reset. This will erase everything on the phone and restore it to its original state. After the reset, set up the phone and check if service is restored.

Common Mistakes

• Not powering off before removing the SIM. Removing the SIM while the phone is on can sometimes corrupt the SIM’s connection data. Always power off first.
• Skipping the network reset. Many users jump straight to a factory reset, which is drastic. The network settings reset is less invasive and often fixes the issue.
• Assuming the SIM is fine. A SIM card can fail without any visible damage. Testing it in another phone is the fastest way to rule it out.
• Ignoring the SIM tray position. The P10 uses a hybrid tray that can hold either two nano-SIMs or one nano-SIM and one microSD card. If you have a microSD card installed, make sure the SIM is in the correct slot (slot 1 is usually the primary).

Tips

• Keep your phone updated. Regular software updates fix known bugs, including network issues. Set updates to download automatically over Wi-Fi.
• Use a clean SIM. Dirt or oil on the SIM contacts can cause intermittent signal loss. Clean it gently with a soft, dry cloth.
• Check your carrier’s coverage. If you are in a remote area or a basement, “No Serviceâ€� might simply mean no coverage. Move to a window or open area to test.
• Try a different SIM slot. If your phone has two SIM slots, move the SIM to the other slot. This can rule out a faulty slot on the motherboard.
• Note your IMEI. If all else fails, you may need to contact support. Your IMEI number (dial *#06#) will be required to check if your phone is blacklisted or has a hardware issue.

Troubleshooting

If you have followed all the steps and still see “No Service,� here is what to do next:

• Test with another SIM card. Borrow a SIM from a friend or family member (same carrier). If it works, your original SIM is the problem. If it still fails, your phone’s radio hardware is likely faulty.
• Check for physical damage. Look at the SIM tray and the slot inside the phone. If the pins inside the slot are bent or broken, the phone cannot read the SIM. This requires professional repair.
• Contact your carrier. They can check if your account is active, if your SIM is deactivated, or if there is an outage in your area. They can also re-provision your SIM remotely.
• Visit a repair shop. If the phone has been dropped or exposed to water, the internal antenna or the baseband chip may be damaged. A technician can diagnose and fix this.
• Check the phone’s IMEI status. If your phone was reported stolen or blacklisted, it will not connect to any network. You can check the IMEI status online or with your carrier. If it is blacklisted, only the carrier can remove it (if you are the rightful owner).

Frequently Asked Questions

Why does my Huawei P10 suddenly show “No Service�?

The most common causes are a temporary network glitch, a loose SIM card, or a software bug after an update. Toggling Airplane Mode and restarting the phone fixes most cases. If it happens repeatedly, the SIM card or the phone’s SIM reader may be failing.

Will a factory reset fix the “No Service� error?

It can, but only if the error is caused by a software conflict or corrupted system files. Try the network settings reset first, as it is less disruptive. A factory reset is a last resort because it erases all your data.

My SIM works in another phone but not in my P10. What does that mean?

This points to a problem with your P10. It could be a dirty SIM slot, a software issue (try the resets), or a hardware fault in the SIM reader or antenna. If resets do not help, you will likely need a repair.

Does the Huawei P10 support all carriers?

The P10 is a dual-SIM phone that supports GSM, UMTS, and LTE networks. However, it may not support all frequency bands used by every carrier, especially in different countries. Check with your carrier that your P10 model (e.g., VTR-L09) is compatible with their network.

Can a damaged SIM tray cause “No Service�?

Yes. If the tray is bent or not inserted fully, the SIM may not make proper contact with the pins inside the slot. Inspect the tray and reinsert it carefully. If the pins inside the phone are bent, that requires professional repair.

Why does my phone show “No Service� even though I have full bars in the status bar?

This usually means the phone has lost its data connection, not the cellular signal. Go to Settings > Wireless & networks > Mobile network and check if “Data roaming� is on (if you are abroad) or if the APN settings are correct. A network settings reset often resolves this.

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