Flash firmware on ZTE Max Duo LTE
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How to flash ZTE Max Duo LTE?
Why reinstall the firmware?
Errors in the Android OS start to appear regularly.
Some applications stop opening.
Many programs from the Play Market do not work.
The phone turns off for no apparent reason.
The phone slows down a lot during operation.
You want to update the firmware, as it does not suit you in terms of functionality.
Where can I find the firmware?
On the official Internet resource of the phone manufacturer.
On sites where third-party developers post custom operating systems.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to your computer.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
Find information about your smartphone model.
Charge your phone fully.
Download archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App via the Play Market. And run this application.
At the first start, you need to give consent to future manipulations, as well as consent to granting the Superuser rights to the application. Check the checkboxes and press the 'OK' button.
After moving to the next screen, select the 'TWRP FLASH' item and provide the application with root rights.
On the main screen of the application, click 'Select Device', and find your phone model.
After selecting the phone, the application will redirect the user to a web page to download the modified recovery environment image file. Download the proposed *.img file.
When the download is finished, you need to return to the main screen of the Official TWRP App and click on the 'Select a file to flash' button. Select the file downloaded in the previous step.
Now press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.
The recording process is very fast, and upon completion, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Transfer the necessary files to the SD memory card. Using a PC or laptop card reader, it will be much faster.
Insert a memory card into the device.
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 the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically..
Firmware via TWRP
Before flashing, you need to clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. This will delete all user data from the device, but avoid a wide range of software errors and other problems.
Now you can start flashing. Click the 'Install' button.
The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the storage to which the files were copied.
Select the firmware file 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 damaged files during recording.
The procedure for writing files to the device's memory will begin, accompanied by the appearance of inscriptions in the log field and the completion of the progress bar.
When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.
Summary: Chip: Qualcomm Snapdragon 615 MSM8939; Process technology: 28 nm; CPU: 4x 1.7 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53; CPU bits: 64 bit; Instruction set: ARMv8; Level 0 cache memory (L0): 4 KB + 4 KB; Level 1 cache memory (L1): 16 KB + 16 KB; Level 2 cache memory (L2): 2048 KB; CPU cores: 8; CPU frequency: 1700 MHz; GPU: Qualcomm Adreno 405; GPU frequency: 550 MHz; RAM capacity: 2 GB; RAM type: LPDDR3; RAM channels: Single channel; RAM frequency: 800 MHz; Operating system (OS): Android 5.1.1 Lollipop; SIM card type: Nano-SIM (4FF - fourth form factor, since 2012, 12.30 x 8.80 x 0.67 mm); Number of SIM cards: 1; Type/technology: LCD; Diagonal size: 6 in; Width: 2.94 ...
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