China Mobile first launched a 4G-USIM card with a storage capacity of 64K, which can store up to 250 groups of contacts. Each group can store two numbers, which means 500 numbers can be stored. Later, a 4G-USIM card with a storage capacity of 128K was launched, which can store up to 500 groups of contacts. Each group can store two numbers, which means 1,000 numbers can be stored. In response to reports from netizens that only 250 numbers were stored in the phone after replacing it with a new card, the webmaster of 5icall.cn consulted China Mobile. Relevant personnel from the mobile company stated that due to factors such as mobile phone functions, 4G-USIM card, terminal and network compatibility, the address book storage amount may be displayed inaccurately on the mobile phone. At the same time, due to the limitations of the functions or formats of some mobile phone terminals, the storage capacity of 4G-USIM cards will also vary.
If you want to change your card, the process is very simple. You only need to go to the business hall to use the mobile phone owner's ID card, original SIM card and show the corresponding 4G mobile phone to get a new 4G card for free. Currently, as long as you have a mobile phone number, you can apply for a 4G SIM card, including Global Communications, China Mobile, M-Zone, etc. Applying for mobile 4G does not require users to change their mobile phone numbers, they only need to change a card.
In addition, even if you apply for a mobile 4G SIM card, it does not necessarily have to be used on a mobile 4G mobile phone. Users can use other mobile phones that support GSM and TD-SCDMA networks. When there is no 4G network, the 4G card can automatically switch to 2G and 3G networks. In addition to the decrease in Internet speed, daily phone calls, text messages, etc. will not be affected.
According to the first-come-first-serve principle, when a mobile user replaces a 4G-USIM card, the salesperson first replaces the user with a 4G-USIM card with a storage capacity of 64K. When all 4G-USIM cards with a storage capacity of 64K are used up, the salesperson will Replace with a card with a storage capacity of 128K. Therefore, Ms. Chen suggested that netizens can check the information on the back of the 4G-USIM card to understand the capacity of the 4G-USIM card they received. If it is confirmed to be a 64K 4G-USIM card and want to change it to a 128K capacity card, they can go to the local mobile business Apply for free replacement.
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