Most smart watches can be plugged into Unicom mobile phone cards. However, due to different product configurations, it is recommended that you contact the manufacturer for details.
Unable to identify the sim card, check the reason and solve it: 1, check whether the mobile phone card slot or sim card is damaged: try to insert another mobile phone card, and then put the sim card of the mobile phone itself on another mobile phone. If the card slot is damaged, it is recommended to replace the card slot. If the sim card is damaged, please replace it in the business hall. 2. sim card does not read due to network delay: you can turn on the mobile phone flight mode, turn it off after five seconds, or restart the mobile phone. 3, where the signal is not good, you can't search for the signal to read the sim card, you can search elsewhere. 4. The card sticker is damaged or the mobile phone has been upgraded: you need to use the card sticker according to the version of the mobile phone. Please change the card sticker.
If the watch cannot recognize the SIM card, the reason is:
1. Confirm whether the inserted SIM card matches the mobile phone.
2. Check whether the SIM card is placed correctly; Take out the SIM card and try to insert it again.
3. If it doesn't work, it is recommended to try to replace other SIM cards to eliminate the problem of whether it is a SIM card.
5. If the problem still exists after the above operation, please bring the purchase invoice, maintenance card and machine to the Samsung Service Center, and the professional after-sales engineer will help you detect it.
The side card diagram of children's phone watch is as follows:
Extended data
Children's telephone watch
1. A telephone watch is a small mobile phone that looks like a watch and is usually worn on your wrist. The operation mode is generally touch operation, and some models are key operation. Its characteristics are simple and portable, small and light, and free hands. Satisfy children's playful nature.
2, mobile phone watch core function: two-way call function. No matter where you are, you can find the child by phone.
3, real-time positioning, query the location of the child.
function
1, positioning function at any time
The watch is equipped with professional-grade GPS chip, which has the function of positioning at any time. Parents need to install a software on the smart phone and send instructions to the bracelet through the mobile phone, so that they can know the child's position and find the child's action track in a certain period of time. The base station aided positioning system of the bracelet increases the ability to receive signals, and the closed environment such as indoor will not affect the positioning.
2. Early warning function of safe area
Another highlight of the watch is the cloud intelligent learning system. The system can automatically identify the safe places that children often go when wearing bracelets. Once the child's location exceeds these safe areas, the system will automatically send an alarm to parents' mobile phones to remind them that the child may be in danger. Parents can also set up some safe areas very conveniently to avoid the tedious task of locating children frequently.
3. Establish call connection function
(1) Call and recording functions add a layer of protection to children's safety. The GSM calling module built in the bracelet can establish a one-way calling connection. Parents can dial the bracelet at any time to know the environment of the child by listening to the sounds around the child, such as whether the child quarrels with his peers in kindergarten or whether he is in a strange environment.
(2) Call at any time to realize monitoring. Parents can also record the ambient sound of 15 seconds by sending instructions. If the child really encounters an accident, the recording function can be used to assist in analyzing the environment in which the child is located, and the positioning function can reduce the probability of missing.
References:
Baidu encyclopedia-telephone watch
Why can't OPPOWatch be plugged in?
ESIM card is a virtual SIM card service provided by operators. After opening up, OPPOWatch2 smart watches can independently use functions such as making phone calls and using cellular mobile networks. Support China Mobile, China Unicom and China Telecom.
The opening mode is as follows:
1. Open the "Health" App, click "More Click" and "Click" to immediately open the mobile network and click "China Unicom".
2. Click "Click on the Guide for Opening the Mobile Phone Business Hall App" to open it, jump to the menu bar below the mobile phone business hall App, click the "Service" menu bar on the left, click "Click" to handle the eSIM area and enter the eSIM area.
Double terminal
3. Select "HeyTop Health" and click "Next", enter the mobile phone number and ID number, get the verification code and fill it in. Click "Next" and click "Next" to confirm the processing.
4. The interface shows that the progress circle is being processed. Click "One step away, click Continue" and wait for 100% progress circle.
5. The prompt of service completion pops up, and the main card number receives the short message that the service has been successfully opened. Click the "Close" page to return, and the information of auxiliary equipment will be displayed in the eSIM area.
* Apple phones don't support opening telecom, but they can be used by opening Android phones.
What's the matter with the mobile phone watch showing that the card is not inserted? What if the mobile phone watch shows that there is no card inserted?
As far as electronic equipment is concerned, there are many designs, and the smart phone watch is a new thing. You need to insert it when you use it, but sometimes there will be an accident when you insert the card. What if the phone watch shows that there is no card inserted? What if the phone watch shows that there is no card inserted?
Mobile phones and watches also need to be plugged in. After inserting the card, the watch can use the call function. However, after the mobile phone card is installed, there is a card display that is not plugged in. Generally, the card is not inserted, so you can try again with the card. It may also be that the model of the mobile phone card is not good, and such a card generally needs to be used with the NANO card. It is also possible that there is poor contact at the card insertion place. You can clean the dust in the card insertion hole before trying to insert the card. And after-sales maintenance, take the telephone meter to the watch after-sales maintenance center for inspection and maintenance.
When the mobile phone watch card shows no card, first make sure that the SIM card is a NANO card. This card cannot be a SIM card issued by China Mobile or China Unicom. At the same time, you can check whether the SIM card is activated, and you can't use it when it is not activated. This is also the common sense of using a telephone watch.
In short, there are many reasons why the mobile phone watch shows that the card is not inserted, so it needs to be checked one by one. After finding the reason, you can follow the correct steps to complete it. Generally this problem is not difficult to solve.