Flash firmware on HTC One A9s
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How to flash HTC One A9s?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Some applications will not open.
Many applications from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone started to work slowly.
You want to update your firmware.
Where can I find the firmware?
On the official website of the manufacturer.
On Internet resources 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.
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.
Installing TWRP Recovery
Install the Official TWRP App from the Play Store on your phone.
When you start the application for the first time, you must agree to install the firmware, as well as agree to grant 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, select '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.
After downloading the image file, return 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.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Copy the necessary files to the SD memory card. Using a PC or laptop card reader.
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 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.
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 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: Type: Smartphone; Smart Phone OS: Android; OS ver: Android OS, v6.0 (Marshmallow) with HTC Sense; SIM: Nano SIM; CPU: Mediatek MT6755 Helio P10Octa-core (4x1.8 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53); Processor Speed: 1.8 GHz 1.0 GHz; Storage: 16GB, 32GB; RAM: 2GB, 3GB; External Storage: Extended memory: microSD up to 2TB; Battery: Capacity: 2300 mAhTalk time on 3G network: up to 13.11 hoursStandby time on 3G network: up to 432 hoursPower saver modeExtreme power saving modeFast charging (5V/1.5A); Screen Size: 5.0 inches; Resolution: (720 x 1280 pixels); Main Camera: 13 MP, f/2.2, 28mm, autofocus, LED flash; Front Camera: MP, f/2.8, 33.7 mm, 1.12 µm pixel size; Features ...
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