Flash firmware on Karbonn A50s
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How to flash Karbonn A50s?
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 or shuts down by itself.
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 website of your phone manufacturer.
On sites where developers post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of all personal information: contacts, photos and transfer it to another computer.
Insert an SD card into your phone to write the firmware to it.
Determine your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Download archive with Firmware. Place it on the SD card.
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 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, 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 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.
After downloading the image file, 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.
Now press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Write the firmware to the SD 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 clear the 'Cache' and 'Data' sections, press 'WIPE' on the main screen. You will delete all user data from the phone, this will avoid software errors and other problems.
Now you can start flashing. Press the 'Install' button.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
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 damaged files during recording.
The procedure for writing files to the phone's memory 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 900 / 1800; 3G Network: HSDPA 2100; 4G Network: No; SIM: Dual mini SIM; Dimensions: 115.7 x 61.8 x 10.5; Keyboard: Touchscreen; Colors: White, Black; Cover: Plastic; Type: TFT capacitive touchscreen with 256,000 colors; Screen Size: 3.5 inches, 320 x 480 pixels, 167 pixels per inch (PPI); Card slot: MicroSD, up to 32GB; Internal: 512MB; Operating System: Android 4.2 Jelly Bean; Processors: 1.2GHz dual-core CPU; RAM: 256MB; 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: Up to 7.2 mbps downlink; Up to 5.76 mbs uplink; 4G: No; WI-FI: Wi-Fi 802.11 b/g/n, WIFI hotspot, W ...
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