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Flash firmware on Xolo Q900s Plus

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How to flash Xolo Q900s Plus?


Why reinstall the firmware?

Errors constantly appear in the Android operating system.

Some installed applications do not open.

Many programs from the Play Market do not work.

The phone restarts by itself for no reason.

The phone started to work slowly.

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 sites where third-party developers post custom operating systems.


What should be done before installing the firmware?

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

Insert SD card. An SD card is needed to write firmware to it.

Determine your smartphone model.

Fully charge your phone battery.

Download archive with Firmware. Place it on the SD card.





Installing TWRP Recovery

Install the Official TWRP App from the Play Store on your phone. And run this application.

When you start the application for the first time, you must agree to install the firmware, as well as agree to grant 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 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.

Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.

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

Transfer the necessary files to the SD memory card. Using a PC or laptop card reader, it will be much faster.

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 many 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.



TWRP

Select the firmware file and click on it. A screen opens with a warning about possible negative consequences, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged files when writing to the phone's memory sections.

The procedure for flashing the phone will begin, 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: OS: Android (4.4); Dimensions: 8 megapixels; Flash: LED; Features: Autofocus; Camcorder: 1920x1080 (1080p HD); Features: Video calling; Front-facing camera: 2 megapixels; System chip: Qualcomm Snapdragon 200; Processor: 1024 MB RAM / LPDDR2; Built-in storage: 8 GB; Storage expansion: microSD, microSDHC up to 32 GB; Talk time: 23.00 hoursthe average is 11 h (671 min); Stand-by time: 11.0 days (263 hours)the average is 20 days (478 h); Talk time (3G): 14.00 hoursthe average is 15 h (906 min); Stand-by time (3G): 10.2 days (246 hours)the average is 23 days (556 h); Capacity: 1800 mAh; Type: Li - Polymer; Music player: ; Filter by: Album, Artist, Playlists; Features: Album art ...

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