Card slot 1, 2 can be switched to master card and slave card at will;
The use of dual-card 4G network needs to be determined according to the operator's network and related business deployment. Subsequent mobile phone software functions may follow the network matching upgrade, please refer to the functions supported by the actual version of the mobile phone.
China Telecom (Chinese mainland) has dual cards and dual VOLTE functions, so the mobile phone system needs to be upgraded to above CLT-Al008.1.0.109 (sp2c00).
If both cards are telecom cards, the secondary card (not the default mobile data card) must enable the telecom VoLTE service to use both telecom cards at the same time.
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Highlights of Huawei p20:
1, industrial design
Huawei P20 series is amazing because of its design. The design of this machine is inspired by the change of aurora, and the gradient electroplating process of structural color is adopted, showing the mysterious aurora color, which makes people linger in the dazzling brilliance. This gradient design is unique in today's mobile phone market, and sometimes innovation is casual, which is praised by Huawei.
2. Extreme photos
Nowadays, taking photos with mobile phones has become an urgent demand of users. Because of this, Huawei P20 series has also made great efforts in taking pictures. P20 rear camera adopts brand-new Leica dual lens,12 million colors and 20 million black and white pixels, which continues the excellent Leica dual camera capability. The front 24 megapixel lens supports five unique 3D portrait lighting effects, as if carrying a lighting engineer with you, and different lighting effects show different styles.
3. Strong performance
Of course, apart from the amazing camera configuration, Huawei P20 series processors are all Kirin 970AI processors with built-in EMUI 8. 1 based on Android8. 1 system. There is no difference between the two mobile phones. They are both 128GB. In terms of memory, P20 is 4GB and P20 Pro is 6GB.
4. Other aspects
With the increasingly powerful performance and rich functions of mobile phones, the demand for power is also increasing. Huawei has improved the battery capacity according to the pain points of users. P20 series batteries are certified by German authorities, P20 is equipped with a large battery of 3400mAh, and P20 Pro is equipped with a large battery of 4000mAh.
Huawei official website-Huawei p20