Xiaomi Redmi 4A how to swipe, Redmi 4A how to install a mobile phone card Redmi 4A card

1First go to this ** unlock to apply for unlocking, and then you need to fill in your name, mobile phone number, and reason for application and check the "Xiaomi Mobile Phone Unlock Agreement", and fill in the verification code received by the mobile phone.

2: The application is submitted successfully, waiting for review (the general review is relatively fast, almost the application can be passed, and the holiday time will be longer), after the application is unlocked, you have to really unlock it, and then, you have to use the computer to unlock the BL of Redmi 4A.

3: Then go to the unlock click again"Unlock the tool**", get the unlock kit, unzip it, double-click Run, agree to the disclaimer Fill in the unlocked one that has been approved, log in.

4: Then let your Redmi 4A completely shut down, at the same time, press and hold the phone's "Volume Down + Power Button" while the phone is powered off, press and hold the two buttons at the same time and do not loosen, enter the fastboot mode of the Redmi 4A (there is a rabbit interface), and then insert the data cable into the phone and the computer online, click "Unlock".

5: It is expected that the unlocking will be completed in about 10 seconds, and then there will be a prompt that the unlocking is successful.

6: Note: After flashing into the development version, you must log in to the Xiaomi that has been approved and unlocked online, otherwise it will not be unlocked normally!

7: The unlock is complete.

Hope for an answer.

<>1. Use a card needle. First of all, find the card needle that comes with it in the Redmi 4 box, if you accidentally lose it, you can also use the card needle or small needle of other mobile phones, which are generally compatible.

2. Eject the card tray. Redmi4The SIM card slot is located in the middle and upper part of the left side of the fuselage,Use the card needle Zen Feng to insert vertically into the small hole next to the casket stove on the left side of the fuselage,A little force,You can eject the card tray,After that, pull it out and take it off。

3. Install the congratulatory argument into the card slot. Insert the prepared nano-SIM Miro SIM or nano-SIM + Miro SIM micro SD dual SIM into the corresponding position of the card slot, and then install the card tray back into your phone.

There are two types of flashing of Xiaomi mobile phones: card swiping and line swiping.

First, the card swiping method:

2. Connect your phone to the computer, copy the zip package to the downloaded rom folder of the built-in storage, and then enter "System Update".

3. Click on the upper right corner "...Select Manually select installation package, and then select the zip package.

4. After selecting the correct complete package, the system will automatically start the upgrade, and let the ROM fly for a while! Once you're done, reboot into the new system.

Second, the line brush method:

1. Turn off the phone, then press and hold the "Power Button" and "Volume-Button" to enter fastboot mode.

4. Open miflash and paste the address of the installation package.

5. Click. Flash.

6. After the flashing is completed, the phone is restarted, and wait patiently, which generally will not exceed 15 minutes.

Steps: Take out the card tray with the card pin - put the SIM card in the card tray - and reattach the phone.

1. First of all, find the card needle that comes with it in the Redmi 4A box, if you lose it accidentally, you can also use the card needle of other mobile phones.

2. The SIM card tray of the Redmi 4A mobile phone is located in the middle and upper part of the left side, use the card needle to insert vertically into the small hole next to the card tray on the left side of the fuselage, and use a little force to top it, you can eject the card tray, and then pull it out and remove it.

3. Reinstall the card tray with the card back into the mobile phone and use it.

Redmi 4A card insert notice:

1. About the network system.

Redmi 4A supports full Netcom, which eats all the networks of the three major operators of China Mobile, China Unicom, and Telecom, and users do not need to distinguish between operators.

Instructions for using dual SIM cards:

2. About SIM card type.

The Redmi 4A is designed with a two-choice card slot, which supports nano-SIM micro-SIM mobile phone cards, and also supports micro-SD memory expansion memory cards. Nano-SIM card or micro-SIM card, in the case of dual SIM cards, one nano-SIM card and one micro-SIM card. If you are using 2 SIM cards, the main support is China Unicom Telecom 4G network, and the secondary card can only use 2G network.

Redmi 4 does not support the use of 2 telecom SIM cards at the same time, and can only use one telecom SIM card at most, while the mobile Unicom mobile phone card is unlimited.

The mobile phone card slot is generally on the side or bottom of the mobile phone, insert the card holder with a card needle and the card tow will automatically pop up, take out the card tow and place the SIM card prepared in advance, and then push the card tow to the original part.

Step 1: First of all, find the card needle that comes with it in the Redmi 4 box, if you lose it accidentally, you can also use the card needle or small needle of other mobile phones, which are generally compatible;

Step 2: Redmi 4The SIM card slot is located in the upper part of the left side of the fuselage, use the card pin to insert vertically into the small hole next to the card tray on the left side of the fuselage, and push it with a little force, you can eject the card tray, and then pull it out and remove it.

Step 3: Insert the prepared nano-SIM Miro SIM single SIM or nano-SIM + Miro SIM micro SD dual SIM into the corresponding position of the card slot, and then install the card tray back into the mobile phone.

It's just like a normal mobile phone, nothing special.

Normal flashing does not take more than 10 minutes,First of all,,Prepare the rom,,, computer to install the flashing tool,Such as Master Zhuo,Connect the mobile phone,Identified,You can root the flash,Some mobile phones can't be opened,Said that the number chain reputation can't be flashed,,Bricked,,This is basically impossible,If you have rooted,You can omit this step。。

After selecting the ROM resource,**,And one click ROM flashing on it。。。 By the way, before flashing, you must pay attention to the system to call the beam backup, and the potato section must be set up out of the factory, flashing, otherwise the two systems will overlap the software

There is a diagram next to the slot, just look carefully and follow it.