Flash firmware on Acer Iconia A1-811
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How to flash Acer Iconia A1-811?
Why reinstall the firmware?
Errors constantly appear in the Android OS.
Some applications will not open.
Many programs from the Play Market do not work.
The phone restarts for no reason.
The phone is slow.
You are not satisfied with the possibilities of the stock firmware.
Where can I find the firmware?
On the official website of the manufacturer.
On sites where developers post custom or official OS.
What should be done before installing the firmware?
Back up your phone's user data.
Insert an SD card into your phone to write the firmware to it.
Determine 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 archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. And install it.
When you start the application for the first time, you must consent to future manipulations, as well as consent to granting the application Superuser rights. Check the checkboxes and press 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 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, 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.
Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.
After the burn process is complete, 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 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 'Reboot' 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.
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 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, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged 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.
After the firmware installation procedure is completed, the 'Successful' message appears on the screen.
Summary: Released: Aug, 2013; Box Content: Charger, Earphone, USB Cable; Languages: English; Operating system: Android v4.2 Jelly Bean; Shades: White; Chipset: MT8389; CPU: 1.2 GHz Quad-core; Auto Focus: yes; Rear Camera: 5 MP; Front Camera: 0.3 MP; Resolution (Front): 640x480 pixels; Camera Resolution: 2592x1944 pixels; Digital Zoom: yes; GeoTagging: yes; Primary Camera: 5 MP, 2592x1944 pixels, Digital Zoom; Display Size: 8" inch; Touchscreen: yes; Display Resolution (V): 768 pixels; Display Resolution (H): 1024 pixels; Multi-Touch: yes; Display Colours: 16 Million; Display Type: TFT; Call Log: yes; Memory Card: microSD, Up to 32 GB; Bluetooth: v4.0, A2DP; USB: microUSB v2.0 ...
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