Flash firmware on Yezz Andy AC4M
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How to flash Yezz Andy AC4M?
Why reinstall the firmware?
Errors in the Android OS start to appear regularly.
Some applications will not open.
Many programs from the Play Market do not start.
The phone turns off for no apparent reason.
The phone began to slow down a lot.
You want to update the firmware, as it does not suit you in terms of functionality.
Where can I find the firmware?
On the official website of the manufacturer.
On specialized services on which developers lay out 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 an SD card into your phone to write the firmware to it.
Find information about your smartphone model.
Charge your phone fully. If the battery runs out during boot, the device will no longer turn on. It will be difficult to restore it.
Download the archive with Firmware and 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.
In the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.
On the main screen of the application, click 'Select Device', and find 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.
When the file is loaded, 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. Click 'OK'. The TWRP installation procedure can be considered complete.
Write the firmware and other necessary 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 enter the menu accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. Select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically..
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. Click 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 you copied the files. Press the 'OK' button.
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 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.
When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.
Summary: Chipset: MediaTek MT6572M; CPU: 2 Cores @ 1.2GHz ARM Cortex-A7; GPU: Mali-400; RAM: 512MB; Internal Memory: 4GB; External Memory: microSD; Camera Resolution: 8 Megapixel; Camera Flash: LED; Front Camera: 1.3 Megapixel; Other Functionalities: Accelerometer, Proximity Sensor; Speaker: Mono; Battery Capacity: 1400mAh; Battery Type: ; Display Resolution: 480x800px; Display Size: 53x88mm (2.09x3.46") ~233PPI; Display Diagonal: 4.0"; Display Type: 16M TFT; Secondary Display Resolution: ; Input: Capacitive Touchscreen; Talk Time: 16 hours - 2G , 8 hours - 3G; Standby Time: 20 days - 2G , 14 days, 14 hours - 3G; Smart Phone OS: Android OS, v4.2; Java: MIDP 2.0; Vibration: Yes; ...
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