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Flash firmware on Maxx MSD7 3G- AX50

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How to flash Maxx MSD7 3G- AX50?


Why reinstall the firmware?

Errors constantly appear in the Android operating system.

Some installed applications do not open.

Many applications from the Play Market do not start.

The phone restarts by itself for no reason.

The phone began to slow down a lot.

You are not satisfied with the functionality of the stock (official) firmware.





Where can I find the firmware?

On the official Internet resource of the phone manufacturer.

On specialized services on which various developers lay out custom or official OS.


What should be done before installing the firmware?

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

Insert your SD card into your phone. An SD card is needed to write firmware to it.

Determine your smartphone model.

Fully charge your phone battery.

Download Firmware and Place it on the SD card.





Installing TWRP Recovery

Install the Official TWRP App via the Play Market. And run this application.

When you start the application for the first time, you need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click the 'OK' button.

After moving to the next screen, select the 'TWRP FLASH' item and provide the application with root rights.

TWRP

On the main screen of the application, click on the 'Select Device' drop-down list, and select your phone model.

After selecting a device, the application will direct the user to a web page to download the appropriate modified recovery environment image file. Download the suggested *.img file.

When the file is loaded, you need to return to the main screen of the Official TWRP App and press the 'Select a file to flash' button. Select the file downloaded in the previous step.

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

When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.

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

Insert a SD memory card into the phone.

To reboot into recovery, you need to use a special item in the Official TWRP App menu, accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.





Firmware via TWRP

TWRP

Before flashing, you need to delete all user data from the phone, this will avoid errors in the software, as well as other problems. Press 'WIPE' on the home screen.

Now you can start flashing. Press the 'Install' button.


TWRP

The file selection screen appears. At the very top there is a 'Storage' button for selecting an SD card.

Select the storage to which the files were copied. Press the OK button.



TWRP

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 corrupted files when writing to the phone's memory sections.

The procedure for flashing the phone will begin, this is accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.

After completing the installation procedure, a 'Successful' message appears on the screen.





Summary: Screen Type: WVGA Capacitive Touch Screen; Screen Size: 5.0 inches; Screen Resolution: 480 x 800; Processor: Dual Core; Processor Speed: 1 GHz; Internal Memory: 4GB, 512MB RAM; Extendable Memory: 32GB; Sensor Resolution: 5MP; Video Recording: yes; Front facing camera: 0.3MP; Operating System: Android; Version: 4.2 (Jelly Bean); FM Radio: yes; Bluetooth: Yes, v4.0 with A2DP; Messaging: SMS, MMS, Push Email, Predictive Text Input; GPS: Yes, with A-GPS Support; USB Connector: yes; Browser: HTML; Available Colours: White; 2G: GSM 900/1800 MHz; ...

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Maxx MSD7 3G- AX50