Flash firmware on iBall Andi4 B2-3G
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How to flash iBall Andi4 B2-3G?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Apps won't open.
Some 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 website of your phone manufacturer.
On specialized resources 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 device. If the battery runs out during the firmware, the device will no longer turn on.
Find and download the 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 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, 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 the phone, the program will redirect the user to a web page to download the corresponding image file of the modified recovery environment. 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. 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 SD 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
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.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
Select the location where you copied the files..
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: OS: Android 4.2 Jelly Bean; CPU frequency: 1300.0 MHz (2-core); Chipset: MediaTek MT6572; GPU: ARM Mali-400; RAM Memory: 256.0 MB; Display: TFT Color (262K), 480x800 px (4.0") 233ppi; Touch screen: yes; Built-in memory: 2 GB; Memory card: MicroSD/TransFlash max. 32 GB; Camera: 3.2 MPx; Resolution: 640x480 px; Flash: LED; Autofocus: yes; Optical zoom: no; Digital zoom: yes; Second camera: 0.31 Mpx; Bluetooth: 2.0; EDGE: yes; GPRS: yes; GPS: yes; A-GPS: yes; GSM: 900 1800; HSDPA: 2100 HSPA; HSUPA speed: 5,76 Mb/s; HSDPA speed: 21 Mb/s; USB: 2.0; WAP: 2.0; Wi-Fi: 802.11 b/g/n; Audio formats: MP3, AAC, AAC; Audio out: Jack 3,5 mm; Games: yes; Java: yes; MP3 player: yes; MP3 ringtones: yes; Poly ...
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