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Flash firmware on ZTE Grand X2

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How to flash ZTE Grand X2?


Why reinstall the firmware?

Errors constantly appear in the Android OS.

Some applications will not open.

Some applications from the Play Market do not start.

The phone restarts or shuts down randomly.

The phone began to work slowly.

You are not satisfied with the possibilities of the stock firmware.





Where can I find the firmware?

On the official website of the manufacturer.

On sites where users post custom or official OS.


What should be done before installing the firmware?

Create a backup copy of user data, contacts and photos and transfer it to your computer.

Insert your SD card into your phone. It must have enough memory to fit the firmware.

Determine your smartphone model.

Charge your phone fully. If the battery runs out during boot, the device will no longer turn on. It will be difficult to restore it.

Find and download the archive with Firmware. And place it on the SD card.





Installing TWRP Recovery

Download and install the Official TWRP App from the Play Market.

When you start the application for the first time, you must agree to install a new firmware and all the risks associated with this, as well as agree to grant the application Superuser rights and click the 'OK' button.

In the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.

TWRP

On the main screen of the application, click 'Select Device', and select your phone model.

After selecting the phone, the program will redirect the user to a web page to download the corresponding image file of the modified recovery environment. Download the proposed *.img file.

After downloading the image file, go to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Then we tell the program the path where the file loaded in the previous step is located.

Press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.

When the message 'Flash Completed Succsessfuly!' appears on the screen. Click the 'OK' button. The TWRP installation procedure is now complete.

Copy the firmware and other necessary files to the SD card.

Insert a memory card into your phone.

To reboot into recovery, you need to enter the menu accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. Select 'Reboot' and then click on the 'REBOOT RECOVERY' button.





Firmware via TWRP

TWRP

Before flashing, it is recommended to clear the 'Cache' and 'Data' sections. This will delete all user data from the device, but avoid a wide range of software errors and other problems. You must press 'WIPE' on the main screen.

You can start flashing. Click the 'Install' button.


TWRP

The file selection screen is displayed. At the very top is the 'Storage' button, which allows you to switch between types of memory.

Select the location where the files were copied.



TWRP

Find the file we need and click on it. A screen opens with a warning about possible negative consequences, you need to check the item 'Zip signature verification', which will avoid using corrupted files when writing to the phone's memory sections.

The procedure for writing files to the phone's memory will begin, accompanied by logging and filling in the progress bar.

After the firmware installation procedure is completed, the 'Successful' message appears on the screen.





Summary: Design: Classic; SIM cards standard: Micro Sim; GSM: 850 900 1800 1900; HSDPA: 850 1900 2100 HSPA; LTE: 700 850 1900 2600; Dimensions (H/L/W): 145 x 72.8 x 9.3 mm, vol. 98 cm³; Display: LCD IPSColor (16M) 720x1280px (5.0") 294ppi; Touch screen: yes; Weight: 145 g; Time GSM (talk/stand-by): 7 / 280 hrs. (11.7d); Battery: Li-Ion 2480 mAh; Built-in memory: 16 GB; Memory card: MicroSD max. 32 GB; RAM memory: 2 GB; Operating system: Android 5.1; Chipset: Qualcomm MSM8926; CPU 1 frequency: 1200.0 MHz(4-core); GPU Type: Qualcomm Adreno 305; GPRS: yes; EDGE: yes; HSDPA: 21 Mb/s; HSUPA speed: 5,76 Mb/s; HSCSD: no; Wi-Fi: 802.11 b/g/n; Bluetooth: 4.0; USB: 2.0; IrDA: ...

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