Flash firmware on Ulefone S1
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How to flash Ulefone S1?
Why reinstall the firmware?
Errors start to appear in the operating system.
Some applications stop opening.
Many applications from the Play Market do not start.
The phone restarts for no reason.
The phone is slow.
The OS does not match the system requirements of the smartphone.
Where can I find the firmware?
On the official Internet resource of the phone manufacturer.
On Internet resources where users 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.
Find information about your smartphone model.
Charge your phone fully.
Download archive with Firmware.
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.
After moving to the next screen, select the 'TWRP FLASH' item 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 application will redirect the user to a web page to download the modified recovery environment image file. 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.
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..
Copy the necessary files to the SD memory card. Using a PC or laptop card reader.
Insert a memory card into the 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 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 appears. At the very top is the 'Storage' button, select the location where the firmware file is located.
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, 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.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Smart Phone OS: Android; OS ver: Android 8.1 Oreo (GO Edition); SIM: Nano SIM , Dual SIM , Dual Standby; CPU: MediaTek MT6580Quad-core; Processor Speed: 1.3 GHz; Storage: 8GB; RAM: 1GB; External Storage: SD card up to 64GB; Battery: Li-Polymer 3000mAhCharge: 5V, 1AStandby Time: 250 HoursTalk Time: 11 HoursMusic: 23 HoursVideo: 6 Hours; Screen Size: 5.5 inches; Resolution: 960 x 480 pixels; Main Camera: 5MP (Interpolated to 8MP) 5MP; Front Camera: 2MP (Interpolated to 5MP); Features: Wi-Fi , GPS , Bluetooth , Flash , Face Unlock , Dual Cameras , 3.5mm Headphone Jack; Dimensions: 148.6 x 70.7 x 9.55 mm (HXWXD); Weight: 183 g with battery; ...
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