After switching card 2 on Huawei mobile phone 5x, card 1 has no service, where is the problem?

If there is no signal on the phone or a no service or emergency call prompt is displayed on the screen, it is recommended

2.If it is a dual-SIM phone, please check whether the SIM card is activated: Settings - SIM Manager - SIM1 SIM2 - Click the SIM card icon - slide to turn on (the operation mode may be slightly different for different models of mobile phones).

3.If there is still no signal, it is recommended to turn off the SIM card and remove it, wipe the SIM card chip with an eraser, and then reinstall it.

4.If it doesn't work, try to change to another location to rule out whether it is caused by poor signal coverage in your location.

5.Try to change the network mode to 3G or 2G (do not select the auto-connect mode). Note: Some machines do not support changing the network mode.

6.Try to change another SIM card.

7.Update your phone's system version: Settings - About Phone (About Device) - Manual Update Automatic Update (Software Update System Update - Update). Note: Please back up the data (contacts, messages, **, etc.) in your device before upgrading.

If there is still no signal or emergency call is displayed after the above operations, please bring the purchase invoice, warranty card and machine to the service center for inspection.

1. Turn off the phone, take out the SIM card and try again.

2. Check whether the network of the same operator of the surrounding mobile phones is normal, and judge that it is a network fault.

3. Restart the phone to try, if it doesn't work, reset the network settings to see if there is a system problem.

4. Change the SIM card to see if there is a card problem. If you have a problem with the card, it is recommended to go to the mobile service center to replace the SIM card.

5. Enter the hardware test, click "SIM card test" on the hardware test interface, and see if the SIM card status is normal;

6. It is recommended to go to the after-sales outlets for detection of mobile phone problems.

You can shut down the computer and then reinstall the card, and then confirm whether there is a problem with the network.

Reset your network settings to see if it's a system issue.

Go to the business hall and ask if the SIM card is normal.

Go to the mobile phone after-sales inspection.

The phone doesn't recognize the SIM card.

Show No Service Processing:

1. Please confirm whether the SIM card type is correct according to the mobile phone model. An incorrect SIM card can damage the card tray and card slot or even fail to be removed;

2. Please make sure to use a standard SIM card. Do not use a non-standard SIM card or cut the card by yourself, cutting the card can easily cause the SIM card to be unable to recognize or damage the mobile phone, it is recommended to go to the business hall to change the original standard SIM card;

3. Please confirm whether the card is placed correctly. Whether the notch of the SIM card corresponds to the card slot;

4. Please confirm whether the surface of the SIM card is dirty. If the SIM card has been used for a long time, you can wipe the surface of the chip with alcohol, or go to the business office to replace the original standard SIM card. If the SIM card is used for a long time, the metal surface is easy to be oxidized, which is easy to cause probabilistic card recognition;

5. Do not plug or unplug the SIM card when the device is turned on. After inserting the SIM card, please restart your phone and try;

6. If the problem still exists, please back up the data in advance and bring the purchase invoice to the after-sales service point for maintenance.

If your phone inserts 2 SIM cards and only displays 1 signal icon, it means that your SIM card is not recognized, please follow the steps below to rule out the SIM card problem:

1.Please restart your phone and try.

It is recommended that you restart your phone and let your phone re-read the "SIM card" before trying.

2.Please observe whether the SIM card looks good or not.

1) Observe whether the metal surface of the SIM card is dirty, clean the dirt on the surface of the SIM card, and avoid poor contact that causes the SIM card to be unrecognized.

2) If you are cutting your own SIM card, it is likely that the SIM card cannot be recognized due to the non-standard shape of the SIM card and loose installation in the card tray, resulting in poor contact. It is recommended that you bring your ID card to the nearest operator's office to change the standard SIM card.

3.Please test whether the SIM card can be used normally.

If your SIM card is not recognized on other mobile phones, or if other SIM cards are recognized on your mobile phone, it is likely that your SIM card is malfunctioning, and it is recommended that you bring your ID card to the nearest operator's business office to replace the standard SIM card.

4.Please check if the SIM card is placed in the corresponding card slot.

Some mobile phones only support a single SIM card, the inside of the card tray is the NM card slot, and the outside is the SIM card slot, please refer to the logo on the card tray frame to put the card, the SIM card and the NM card will not be recognized if the card is placed incorrectly.

If the problem persists after attempting the above methods, we recommend that you back up your data in advance (third-party applications such as QQ and WeChat must be backed up separately) and bring the relevant purchase voucher to a Huawei customer service center near you.

Repair spare parts** inquiry.

Make an appointment for service. Boarding service.

Your mobile phone card is placed in the mobile phone and shows that there is no service, this should be your mobile phone card is not installed correctly, it is recommended that you reinstall it.

Huawei SIM card 1 normal card 2 no service solution can be solved by restarting the phone, observing whether the SIM appearance is good, testing whether the SIM card can be used normally, and checking whether the SIM card is placed in the corresponding card slot.

1. Restart your phone and try.

It is recommended that you restart your phone and let your phone re-read the "SIM card" before trying.

2. Observe whether the appearance of the SIM is good.

Observe whether the metal surface of the SIM card is dirty, clean the dirt on the surface of the SIM card, and avoid poor contact.

3. Test whether the SIM card can be used normally.

If your SIM card is not recognized on other mobile phones, or if other SIM cards can be recognized on your Nisaki phone and tablet, it is likely that your SIM card is faulty, and it is recommended that you bring your ID card to the nearest operator's business office to replace the standard SIM card.

4. Check whether the SIM card is placed in the corresponding card slot.

Some mobile phones only support a single SIM card, the inner side of the card tray is the NM card slot, and the outer side is the SIM card slot, please refer to the logo on the wide cluster frame of the card tray edge section to put the card, the SIM card and NM card are placed incorrectly will cause no recognition.

Precautions for using a mobile phone card:

1. Do not bend, squeeze or scratch the mobile phone card with other sharp objects when using.

2. Avoid the metal contact surface being corroded by sweat stains, and do not take the mobile phone card out of the mobile phone at will.

3. The mobile phone card is a smart card, it has a card password (i.e. pin1 code), the initial password is 1234, and the user can modify it. When the pin1 code is entered incorrectly 3 times, the mobile phone card will be automatically locked, you need to enter puk1 to unlock, a total of 10 unlocking opportunities, puk1 code input wrong 10 times, the mobile phone card will automatically start the self-destruct program, you need to bring the original valid certificate to the local business hall to apply for a replacement card. <>

1.What is HUAWEI SIM 2 No Service?

HUAWEI SIM 2 No Service means that the mobile phone cannot receive or send SMS, voice, or data in the mobile phone signal area. This is a common type of mobile communication failure that can be caused by various reasons such as network issues, SIM card issues, or phone hardware issues, etc.

2.Reasons that may cause Huawei SIM 2 to have no service.

1) Network source guessing: The operator's base station fails for various reasons, resulting in unstable or even disappearance of the signal, which in turn causes the mobile phone card 2 to have no service.

2) SIM card problems: Some SIM cards are aging or damaged, which may lead to the inability to connect to the network normally, and then induce the situation that the mobile phone card 2 has no service.

3) Mobile phone hardware problems: The aging or damage of the mobile phone antenna, and the problem of the mobile phone system may be one of the reasons for the Huawei mobile phone card 2 to have no service.

3.Ways to solve the problem of Huawei SIM card 2 no service.

Once there is no service for Huawei SIM 2, what measures should we take to solve it?

1) Restart your phone: This is usually a regular way to fix the abnormality, and it is no exception when there is a signal problem with your Huawei phone. Turn on your phone and turn it off and back on, which can sometimes reset your phone's network connection and fix signal issues.

2) Check the network and signal: First of all, you need to check whether the network signal is sufficient in your place, and check whether the phone has enough bar icon to show the strength of the signal. If your phone is too weak to connect to the internet, you'll need to go to an area with better network coverage.

3) Update the system: Keep your phone up-to-date and apply security patches regularly to ensure a more stable network and signal connection, and reduce the occurrence of no service for your HUAWEI SIM card2.

4.How to avoid Huawei SIM 2 without service.

The absence of service for Huawei SIM 2 has had a great impact on our communication behavior, so it is necessary to be vigilant and take measures to avoid it. Here are a few ways to advise you to pay attention to when using your Huawei phone:

1) Pay attention to protect the SIM card: Install the SIM card in a hardware protective case and avoid being placed in a wallet or other place with a strong magnetic field for a long time. Pull out the suspicion card only when necessary. Strive to wipe the card surface every year to keep the hailstone clean.

2) Maintain the long-term connection between the mobile phone and the network: Maintaining the long-term connection between the mobile phone and the network can avoid the situation that the mobile phone card 2 has no service due to network problems.

3) Regularly check the hardware condition of the mobile phone: Regularly check the overall hardware condition of the mobile phone to prevent problems such as aging or damage to the antenna, which can greatly reduce the probability of Huawei mobile phone card 2 without service.

5.Conclusion.

HUAWEI SIM 2 No Service is one of the common problems encountered when using mobile phone communication, which will seriously affect the normal use of wireless communication. In daily practical applications, we should take corresponding technical measures to avoid and solve problems, improve communication stability, and improve our daily work efficiency.

Summary. If a Huawei dual-SIM phone suddenly shows no service on a card, it may be caused by the following reasons: Carrier network failure

The network on which one of the cards is located is faulty, which can cause the card to not work properly. Signal Coverage Issues: If one of the cards has poor signal coverage, it may cause the card to not work properly.

SIM card issues: The SIM card of one of the cards is malfunctioning, which can cause the card to not work properly. System Issues:

If there is a problem with the phone's system, it may cause one of the cards to not work properly.

If a HUAWEI dual-SIM phone suddenly shows no service on one card, it may be caused by the following reasons: Carrier network failure: The network where one of the cards is located is faulty, which may cause the card to fail to serve properly.

Signal coverage problem: If the signal coverage of one of the cards does not destroy the wide game, it may cause the card to fail to serve properly. SIM Card Issues:

A failure of the SIM card of one of the cards may result in the card not being able to function properly. System issues: If there is a problem with your phone's system, it may cause one of the cards to fail to serve properly.

The solution is as follows: Check whether the carrier's network is normal: Contact the customer service of the old carrier to check whether the network where the card is located is normal.

Check signal coverage: Make sure that the signal coverage in your area is good, and if the signal is not good, you can try changing locations. Check if the SIM card is OK:

Insert the card into his Huaidongsheng mobile phone for testing, if it still does not work properly, it may be that the card is faulty, and you can contact the operator to replace it. Check whether the phone's system is normal: If there is a problem with the phone's system, you can try restarting the phone or upgrading the system.

If the problem persists, we recommend that you contact Huawei customer service or go to a nearby Huawei Customer Service Center for inspection and repair.