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Flash firmware on Verykool Juno S5510

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How to flash Verykool Juno S5510?


Why reinstall the firmware?

Errors constantly appear in the Android operating system.

Some applications will not open.

Some applications from the Play Market do not start.

The phone restarts or shuts down randomly.

The phone began to slow down a lot.

You are not satisfied with the functionality of the stock (official) firmware.





Where can I find the firmware?

On the official website of the manufacturer.

On sites 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 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.

Find and download the archive with 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 need to give consent to future manipulations, as well as to give consent to granting 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.

TWRP

On the main screen of the application, click on the 'Select Device' drop-down list, 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, go 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 can be considered complete.

Copy the firmware and other necessary files to the SD card.

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. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.





Firmware via TWRP

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. Press the 'Install' button.


TWRP

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.



TWRP

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.

After completing the installation procedure, a 'Successful' message appears on the screen.





Summary: OS: Android (4.4.2); Dimensions: 8 megapixels; Flash: LED; Features: Touch to focus, Geo tagging; Camcorder: 1280x720 (720p HD); Features: Video calling, Video sharing; Front-facing camera: 1.3 megapixels; System chip: MediaTek MT6572; Processor: Dual-core, 1200 MHz, ARM Cortex-A7; Graphics processor: Mali-400 MP1; System memory: 512 MB RAM (266 MHz) / LPDDR2; Built-in storage: 4 GB; Maximum User Storage: 2 GB; Storage expansion: microSD, microSDHC up to 32 GB; Talk time (3G): 7.00 hoursthe average is 15 h (913 min); Stand-by time (3G): 10.0 days (240 hours)the average is 24 days (588 h); Capacity: 2300 mAh; Type: Li - Ion; Music player: ; Filter by: Album, Artist, Genre, ...

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