Flash firmware on Hisense HS-U820
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How to flash Hisense HS-U820?
Why reinstall the firmware?
Errors in the Android OS start to appear regularly.
Apps won't open.
Many applications from the Play Market do not start.
The phone restarts or shuts down randomly.
The phone is slow.
You want to update the firmware, as it does not suit you in terms of functionality.
Where can I find the firmware?
On the website of your phone manufacturer.
On specialized services on which various developers lay out 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 an SD card into your phone to write the firmware to it.
Find information about your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
Download Firmware and Place it on the SD card.
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 consent to future manipulations, as well as consent to granting the application Superuser rights. Check the checkboxes and press 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 '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, you need to 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.
After the burn process is complete, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete..
Transfer the firmware and other necessary files to the SD card.
Insert a memory card into your 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.
On the file selection screen, at the very top there is a 'Storage' button for selecting an SD card.
Select the storage to which 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, 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: Qualcomm MSM7227A Snapdragon S1; CPU: 1GHz ARM Cortex-A5; GPU: Adreno 200; RAM: 512MB; Internal Memory: 256MB; External Memory: microSD; Camera Resolution: 2 Megapixel; Other Functionalities: Accelerometer, Proximity Sensor; Speaker: Mono; Battery Capacity: 1420mAh; Battery Type: ; Display Resolution: 320x480px; Display Size: 50x74mm (1.97x2.91") ~165PPI; Display Diagonal: 3.5"; Display Type: TFT; Secondary Display Resolution: ; Input: Capacitive Touchscreen; Talk Time: 2 hours, 5 minutes - 2G , 3 hours - 3G; Standby Time: 9 days, 4 hours; Smart Phone OS: Android OS, v2.3; Java: ; Vibration: Yes; Ringtone: ; WiFi: Wi-Fi 802.11 b/g/n; USB: v2.0; Bluetooth: v2 ...
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