Huawei Mate9 card slot, which is the main card

Huawei Mate9 is a dual-SIM dual-standby single-pass, and the main and secondary cards do not distinguish between card slots. The default mobile card for mobile is the primary card and cannot be set.

The Huawei Mate9 card slot is not divided into primary and secondary cards.

It can be seen that Huawei Mate 9, whether it is card slot 1 or card slot 2, supports nano SIM card, and only nano SIM card is supported. What's special is that the HUAWEI Mate 9's card slot 2 can release a micro SD card, and the nano SIM card can be used with the card slot 1 to expand the storage. At the same time, card slot 1 and card slot 2 can be set as the primary card or secondary card, and blind insertion is supported.

By the way:Both the main and secondary cards support 4G, but at the same time, only one card can be set to 4G mode;

You can choose which card slot has 4G mode through the "Settings" > "All Settings" > Dual SIM Management" interface.

Dear, Huawei Mate9 main and secondary cards are not distinguished from card slots! ~~

The card slot part of the main card and the supplementary card, you can insert the card at will;

The primary and secondary cards are set up through the mobile phone;

In your phone's settings, tap Wireless & Network;

Then click Dual SIM Management to set it up.

Hello! Huawei Mate9 is not divided into main card slots! After inserting the card, you can go to SIM card management in Settings and select card 1 or card 2 as the main card

HUAWEI Mate9 card installation card insertion instructions are as follows:

1. Take the card tray.

In the power-off state, find the card tray at the top left of the phone, and use the card pick-up needle that came with the phone to remove the card tray.

Insert the pick-up pin vertically into the small hole on the side of the card tray and press firmly to make the card tray pop out.

Second, look at Cato.

There is a text prompt of the card type in the upper reaches of the card tray: the inner card (also called card slot 1) only supports nano-SIM cards, and the external card (also called card slot 2) can put nano-SIM cards or microSD cards.

3. Insert the card.

Place the nano-SIM card and microSD card into the tray in the direction indicated, noting the direction of the notch.

4. Insert the card tray back.

The phone screen is down, and the card tray is pushed back into the card holder. You can gently press the nano-SIM card or microSD card in a trembling direction to prevent the card from being slightly lifted by the shrapnel that comes into contact during the card insertion process.

Memory card type: MicroSD card.

Supports up to Expand External StorageExpand MicroSD card (up to 256GB) (not standard).

1. Yes;

2. Huawei Mate9 is the flagship level of Huawei Mate series in 2016, which supports memory card expansion, and supports up to 256GB memory expansion, and the specific hardware parameters are shown in the red circle in the figure

1.Please make sure that the SIM card is not disabled.

2.Make sure you are in a good network environment.

Try changing your current location.

1) In some more closed indoor environments, such as houses with dense spacing between buildings, the mobile phone signal may be blocked, resulting in no service.

2) The degree of network coverage of operators varies according to different regions, and some areas may have insufficient coverage capacity, resulting in no service for mobile phones.

If your mobile phone is not serviced in a specific area, or if your friends around you use the same carrier** card also have no service, it may be caused by poor network quality in your location, and you can return to normal after changing to other places.

3.Please avoid interference from metal or magnetic materials.

If your mobile phone uses a special metal protective case, or you are in an elevator, car and other environments, it is recommended that you remove the mobile phone protective case or leave the elevator, car and other environments, metal and magnetic materials are easy to interfere with the signal, resulting in no service for the mobile phone.

4.Please restart your phone or switch on and off airplane mode.

Special configurations of some networks may cause your phone to be out of service, which can be restored after restarting your phone or turning on airplane mode.

5.Please reset the APN

Open Settings, enter APN in the search bar at the top, click Access Point Name (APN) to jump to the mobile data settings interface, click Access Point Name (APN) again, and then click on the three or four points in the upper right corner to reset to the default settings to try.

6.Please reset your network settings.

7.Please remove the SIM card.

1) If your mobile phone card is manually cut, there may be signal problems due to non-standard shape and poor contact, it is recommended that you bring your personal ID card to the operator's business hall to apply for a standard mobile phone card.

2) Dirty or oxidized SIM cards will also lead to poor contact, so it is recommended that you keep the SIM card clean.

8.Please update your phone system to the latest version.

If your phone is still out of service, contact Huawei Consumer Service** (950800) for more assistance, or back up your data in advance (third-party apps such as QQ and WeChat need to be backed up separately), bring your purchase voucher, and go to a Huawei Customer Service Center near you.

Repair spare parts** inquiry.

Boarding service. Make an appointment for service.

HUAWEI Mate9 card slot is on the left side of the phone, and the card slot lead Zheng is a double card tray in one design stool. Card 1: Nano Card Card 2: Choose between Nano Card and MicroSD Card.

Operation: Press and hold the power button and select Power Off.

Use the randomly distributed pick-up needle to insert the small hole on the edge of the card tray and eject the card tray.

Place a Nano SIM card or MicroSD card into the deck.

Insert the card tray back into the phone in the direction of taking it out.

Yes, the following operation method to open the mobile phone card slot is as follows:

1. Press and hold the power Qi Jue button and select Power Off.

2. Use the randomly distributed He Tsai rental card needle to insert the small hole on the edge of the card tray and eject the card tray.

3. Put a nano SIM card or microSD card into the card tray.

4. Insert the card tray back into the hand Zen Zhao machine in the direction of taking it out.

Note: Please use a standard Nano SIM card, inserting a non-standard SIM card may cause damage to the SIM card holder of the mobile phone.