Flash firmware on Karbonn A4 plus
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How to flash Karbonn A4 plus?
Why reinstall the firmware?
Errors constantly appear in the Android operating system.
Some applications do not open, reinstalling which does not lead to a positive result.
Some programs from the Play Market do not start.
The phone restarts or shuts down randomly.
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 website of your phone manufacturer.
On sites where third-party developers and phone manufacturers 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. An SD card is needed to write firmware to it.
Determine your smartphone model.
Fully charge your device.
Find and download the archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App from the Play Store on your phone.
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.
On the next screen, you need to select the 'TWRP FLASH' item 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.
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.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. 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 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 errors in the software, as well as other problems. Press 'WIPE' on the home screen.
Now you can start flashing. Press the 'Install' button.
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. Press the OK button.
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: 2G Network: GSM 850 / 900 / 1800 / 1900; 3G Network: No; 4G Network: No; SIM: Dual mini SIM; Dimensions: N/a; Keyboard: Touchscreen; Colors: White, Black; Cover: Plastic; Type: IPS capative LCD touchscreen with 16,000,000 colors; Screen Size: 480 800 pixels, 4.0 inches, 233 pixels per inch; Card slot: MicroSD, up to 32 GB; Internal: 139 MB; Operating System: Android 4.0 Ice Cream Sandwich; Processors: 1.0 GHz dual-core CPU; RAM: 1 GB; Alert types: Vibration, MP3 ringtones; Loudspeaker: Yes; Audio port: 3.5mm jack; 2G: GPRS - up to 85.6 kbps; EDGE - up to 236.8 kbps; 3G: No; 4G: No; WI-FI: Wi-Fi 802.11 b/g/n, Wi-Fi hotspot; Bluetooth: Yes; GPS: A-GPS; NFC: No; USB: Mi ...
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