SIM card password is the security guarantee for all mobile phone passwords! If not set, once the phone is lost, all the passwords on the phone will be useless. Therefore, it is recommended that you set a SIM card boot PIN password for your phone, especially for the elderly.
Our mobile phones generally have four important passwords: account password, lock screen password, payment password, and sim card password. Everyone knows the first three passwords of , and many people don’t know much about the fourth password, which is the PIN code of the SIM card of the mobile phone. It is very important and it is an important barrier to ensure the security of all mobile phone passwords.
When the PIN code of the SIM card is not set, if the phone is lost and cannot report the phone card in time, as long as someone changes the phone card to another phone, all the account information on your phone can be easily obtained through the SMS verification code. For example, WeChat, , Alipay, , or even bank card passwords, etc., and then people may easily transfer the funds from your accounts.
Setting the SIM card PIN code can effectively protect citizens' personal information and funds. Therefore, it is recommended that you set the SIM card pin code. After setting it, even if your phone is obtained, it will be useless to replace the phone card with other phones. You can't continue using your mobile phone card at all.
So, how should we set the PIN code of the sim card? What should I do if I forget the PIN code? Let’s learn about it together below. It is recommended that you watch the video patiently first and then set it up.
First of all, you need to understand what the pin code is and what effect will be presented after setting it. The PIN code of the mobile phone is a security measure to protect the SIM card, and it is a personal identification code. It can prevent others from stealing SIM cards. If the PIN code on the power is enabled, you must enter a 4-8-digit PIN code after each power on. But everyone should pay attention and remember. If you have set the pin code, if you enter it three times incorrectly, the phone will automatically lock the card. Then at this time, the operator needs to provide the PUK code , and enter the puk code before unlocking. And what you need to know is. If the puk code 10 input error, your phone will be completely scrapped. You must bring the cardholder's valid ID and go to the operator's business hall corresponding to the mobile phone card to re-issue the card. So we must remember the pin code of of this sim card .
Next, let’s talk about how to set it up. Here I will take the oppo mobile phone as an example. Teach you how to set it up. We first need to open the settings of the phone, and then click [Password and Security] - [System Security] - [SIM Card Lock] - [Mobile Card] - Click the button behind opening the [Lock SIM Card], and it will appear, requiring you to enter the pin code. Generally, the initial pin password that comes with this system is 1234, or 0000, and some are 1111, (If these are not , don’t enter again). After the input is completed, the pin code will be opened. Next, we will also click [Change SIM card PIN] below to modify its original password. We click to change the sim card pin code. The prompt appears. Follow the prompt to enter the initial pin code of your phone, click the checkmark, and then you can set the new pin code. As for this password, it can be set to eight digits at most. She needs to enter it twice. After the settings are completed, click the hook.
Here again reminds everyone: Since we don’t use PIN code frequently, it is easy for us to forget it, so we need to write it down in a small notebook. I mentioned above that if this pin code is entered three times, it will cause the SIM card to be temporarily locked. To unlock, you must enter the puk code, and if the puk code is entered ten times, it will be wrong. Your mobile phone card will be permanently locked and completely scrapped. In the end, you can only go to re-card it, so everyone must remember this password.
So if we really forget our password, the SIM card is locked and the system prompts to enter the PUK code, then where can we find this puk code? It can be obtained through the following four methods.
The first PUK code is on the big card outside the mobile phone card we applied for, as shown in the figure
. Call the corresponding operator customer service. Then follow the prompts to get it.Mobile user: 10086Unicom user: 10010
Telecom user: 10000
. ①, Mobile user searches []10086 mini program] on WeChat and click in, then click customer service in the upper right corner.
Send query puk code on the dialog page. Then, in the message replied to by the customer service, click [Point Me] to query the puk code for the mobile phone number.
②, Unicom login app. Click Mine in the lower right corner, then click Settings in the upper right corner, and finally open the Security Center to query.
③, the query method for telecom puk code, the first part, open the browser, enter China Telecom Online Business Hall and click to enter
, open the web page and log in. . Find [Self-service] in the page and click to open. 4. Open [PUK code query]
⑤ in the user center. Click the real puk code item and enter the mobile phone number to query.
The last query method is to check the PUK code information with a valid certificate to the mobile phone card. The mobile phone card corresponds to the operator's own business hall.
Set the PIN boot code of the SIM card
can reduce the risk of personal information and funds being stolen on the mobile phone
