If your card 1 is in normal use, but card 2 is always displaying "Emergency call only", it may be caused by the following reasons:
1. SIM card problem: First, check whether the SIM card of card 2 is inserted correctly.Make sure it is not loose or damaged.You can try to remove the SIM card from the slot and then reinsert it.
2. Network settings: Check whether the network settings of the phone are correct.Sometimes, the network configurations of China Mobile and China Unicom are different, so you need to manually switch to the correct network operator.
3. Dial prefix problem: In some cases, when you use the wrong dial prefix (such as the area code) when making a call, you can only make emergency calls.Make sure the dialing method is correct and no extra characters are entered.
4. Signal coverage: confirm whether there is enough strong signal coverage around.In some places, normal calls may not be possible due to poor signal or inability to connect to the designated operator.
5. Service failure of the operator: Finally, after the above reasons are eliminated, if the problem still exists, it is likely that the operator encountered a service failure in your location.It is recommended to contact the customer service of the corresponding operator for consultation and feed back your questions to them.
In conclusion, the above are some common reasons that may cause Card 2 to always display "Emergency call only".You can check and try to solve these problems one by one. If they still cannot be solved, it is recommended to contact the customer service of the operator for further help.
Huawei P30 can be connected by one card and moved by one card. This problem can only be explained by two reasons: 1. The card slot is broken.2. The phone card is broken.
Huawei P30 can be connected by one card and moved by one card. This problem can only be explained by two reasons: 1. The card slot is broken.2. The phone card is broken. The mobile phone prompts "emergency call". There are several reasons for this: 1. The phone card may not match the phone. 2. The mobile phone card has been damaged. It is recommended that you take valid certificates to the business hall to handle the card replacement business,. 3. The mobile phone has poor contact or you are in a signal blind area or suddenly there is no special signal. Solution: Put the mobile phone card in another mobile phone for testing. If this still happens, it is recommended to take the mobile phone card to the business hall for testing.
Extended data: Huawei P30 dual card dual standby function: The Huawei P30 is dual card dual standby, and can support the dual pass function in the following scenarios: one card VoLTE is in a call, the other card VoLTE can call, and you can choose to answer a new call and hang up the original call.During a VoLTE call with a secondary card, the default mobile data master card can access 4G at the same time (if the master card is an answering phone card, you need to activate VOLTE). The small logo on the upper left corner of Huawei P30 is two 4Gs, which means that two cards are in the 4G network at the same time, and the quality of calls and data is guaranteed.In addition, there are two HD icons on the left side of the small label, which means that Huawei P30 Pro supports dual VoLTE high-definition voice calls - while ordinary mobile phones only support single card VoLTE.
Generally, this phenomenon may be caused by the following reasons: 1. It is located in a signal blind area or suddenly there is no signal.You can check whether the Unicom users around you can use their mobile phones normally to determine whether this is the case; 2. This condition is caused by the poor contact between the mobile phone card chip and the card slot of the mobile phone.It is recommended that you change this mobile phone card to another normally available mobile phone and try again.If this phenomenon still occurs on another normally available mobile phone, it is likely to be a problem with the SIM card.It is recommended that you go to the nearby Unicom's own business hall to check your mobile phone card. If it is determined that the problem is a mobile phone card, you can apply for a new mobile phone card and continue to use the original number and related business; 3. This prompt may also appear if the mobile phone number has been cancelled or you are in the roaming area but have not activated the roaming function.The number status can be queried by consulting the home 10010.If you are already outside the province where you belong, you can call the 10010 hotline in the way of [area code+10010]; 4. Finally, if there is a problem with the mobile phone, it will also affect normal use and cause the above phenomenon.To eliminate the reason of signal coverage and mobile phone card, you can take the warranty card to the mobile phone for after-sales inspection to see if it is normal.
The mobile phone prompts "emergency call". There are several reasons for this: 1. The mobile phone card may not match the mobile phone;2. The mobile phone card has been damaged, and it is recommended that you can carry valid certificates to the business hall for card replacement business;3. The mobile phone has poor contact or you are in a signal blind area or suddenly there is no signal.Tips: It is recommended that you put your mobile card in another mobile phone for testing. If this still happens, it is recommended that you take your mobile card to the business hall for testing.
