Flash firmware on Panco A3i
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How to flash Panco A3i?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Some installed applications stop opening.
Some applications from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone began to work slowly.
You want to update your firmware.
Where can I find the firmware?
On the official website of the phone manufacturer.
On sites where users 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 SD card. An SD card is needed to write firmware to it.
Remember your smartphone model.
Fully charge your phone. If the battery runs out during boot, the device will no longer turn on.
Find and download the archive with Firmware. And place it on the SD card.
Installing TWRP Recovery
Download and install the Official TWRP App from the Play Market.
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, select 'Select Device', and find your phone model.
After selecting a device, the program redirects the user to a web page to download the corresponding image file of the modified recovery environment. Download the suggested *.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, 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 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. We open the menu, 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 delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.
Now you can start flashing. Press the 'Install' button.
The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the location where 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.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: OS: Android 6.0 Marshmallow; CPU: Cortex-A7; CPU frequency: 1300.0 MHz (4-core); Chipset: MediaTek MT6580; GPU: Mali-400; RAM Memory: 1 GB; Display: LTPS Color (16M), 720x1280 px (5.0") 294ppi; Touch screen: yes; Built-in memory: 8 GB; Memory card: MicroSD/TransFlash max. 64 GB; Camera: 7.99 MPx; Resolution: 3264 x 2448 px; Flash: LED; Autofocus: yes; Diaphragm: f/2.0; Optical zoom: no; Digital zoom: yes; Second camera: 1.92 Mpx; Resolution: 1600 x 1200 px; Bluetooth: 4.0; EDGE: yes; GPRS: yes; GPS: yes; A-GPS: yes; GSM: 850 900 1800 1900; HSDPA: 900 2100; HSUPA speed: 5,76 Mb/s; HSDPA speed: 42 Mb/s; USB: 2.0; WAP: yes; Wi-Fi: 802.11 a/b/g/n; Audio formats: AAC, AMR, MIDI, FLAC, MP3, APE, ...
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