Flash firmware on Verykool Bolt S5028
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How to flash Verykool Bolt S5028?
Why reinstall the firmware?
Errors start to appear in the operating system.
Some installed applications do not open.
Many programs from the Play Market do not work.
The phone turns off for no apparent 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 website of your phone manufacturer.
On sites where developers post custom or official OS.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to your computer.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
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 archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Install the Official TWRP App via the Play Market. And run this application.
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, you need to select the 'TWRP FLASH' item 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 application will direct the user to a web page to download the appropriate modified recovery environment image file. Download the suggested *.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.
Now press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.
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 device.
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. This will delete all user data from the device, but avoid a wide range of 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 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, you need to check the item 'Zip signature verification', which will avoid using damaged files during recording.
The procedure for writing files to the device's memory will begin, accompanied by the appearance of inscriptions in the log field and the completion of the progress bar.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Colors: Black, Golden; Dimensions: 144.8 x 72.8 x 10 mm; Weight: 154g; Type: LCD capacitive touchscreen; Display Colors: 16M Colors; Size: 5 Inch; Screen-to-body ratio: ~65.3% screen-to-body-ratio; Resolution: 480 x 854 pixels; Pixel Density: ~196 ppi; Primary: 8.0 MP 3264 x 2448 Pixels; Flash: Yes; Video Recording: With 720p; Secondary: 2.0 MP; Camera Flash: Yes (Screen Flash); Camera Features: Autofocus, Touch focus, Self timer, Face Detection, Smile detection, HDR, Face Beauty, Gesture Shot; Audio Playback: WAV, AAC, AMR, MP3, WMA, MIDI, FLAC, OGG, eAAC; Ring Tones: Vibration, MP3 ringtones, MIDI, WAV; FM Radio: Yes; 3.5mm jack: Yes; Operating System: Android 6.0 (Marsh ...
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