Flash firmware on Centric A1
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How to flash Centric A1?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some applications do not open, reinstalling which does not lead to a positive result.
Many programs from the Play Market do not start.
The phone turns off for no apparent reason.
The phone began to work slowly.
You have decided to try a different version of Android.
Where can I find the firmware?
On the official website of the phone manufacturer.
On specialized services where users post custom or official OS.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to your computer.
Insert SD card. An SD card is needed to write firmware to it.
Find out the exact model of your smartphone.
Fully charge your phone battery.
Find and download the archive with Firmware.
Installing TWRP Recovery
Download the Official TWRP App to your phone from the Play Market. And install this app.
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.
On the next screen, select 'TWRP FLASH' and give the application root rights.
On the main screen of the application, click on the 'Select Device' drop-down list, and select your phone model.
After selecting a phone, the application will direct the user to a web page to download the modified recovery environment image file. Download the proposed *.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, 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 required files to the memory card. Using a PC or laptop card reader.
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
Before flashing, you need to delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.
Press the 'Install' button to start the flashing.
The file selection screen is displayed. 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.
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 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: Operating System: Android v7.1.1 (Nougat); SIM Slot(s): Dual SIM, GSM+GSM; SIM Size: SIM1: Micro, SIM2: Nano (Hybrid); Network: 4G: Available, 3G: Available, 2G: Available; Fingerprint Sensor: yes; Quick Charging: yes; Height: 152 mm; Width: 76 mm; Thickness: 7.8 mm; Weight: 160 grams; Colours: Gold, Classic White Gold. Energetic Black grey; Screen Size: 5.5 inches (13.97 cm); Screen Resolution: Full HD (1080 x 1920 pixels); Pixel Density: 401 ppi; Display Type: LTPS LCD; Touch Screen: yes Capacitive Touchscreen, Multi-touch; Screen to Body Ratio: 72.02 %; Chipset: Qualcomm Snapdragon 430 MSM8937; Processor: Octa core, 1.4 GHz, Cortex A53; Architect ...
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