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Flash firmware on Samsung Galaxy S8 Plus G955K

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How to flash Samsung Galaxy S8 Plus G955K?


Why reinstall the firmware?

Errors start to appear in the operating system.

Some installed applications stop opening.

Many applications from the Play Market do not start.

The phone restarts or shuts down randomly.

The phone is slow.

The OS does not match the system requirements of the smartphone.





Where can I find the firmware?

On the phone manufacturer's website.

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 an SD card into your phone to write the firmware to it.

Find information about your smartphone model.

Fully charge your phone. If the battery runs out during boot, the device will no longer turn on.

Download archive with Firmware.





Installing TWRP Recovery

Download and install the Official TWRP App from the Play Market.

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.

Going to the next screen, select the item 'TWRP FLASH' and provide the application with root-rights.

TWRP

On the main screen of the application, select 'Select Device', and find your phone model.

After selecting a device, the program redirects the user to a web page to download the corresponding image file of the modified recovery environment. 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. 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, press 'OK'.

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 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

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.


TWRP

The file selection screen appears. At the very top there is a 'Storage' button for selecting an SD card.

Select the location where you copied the files.



TWRP

Find the file we need 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.

The completion of the firmware installation procedure is indicated by the inscription 'Successful'.





Summary: Brand & Model: Samsung Galaxy S8 Plus G955K; Product Release Date: 21 April, 2017; Fingerprint Sensor: Yes; Waterproof: Yes; Display Type: Super AMOLED capacitive touchscreen; Display Size: 6.2 inches; Resolution: 1440 x 2960 Pixels, 24 bit color depth; Multitouch Input: Yes; Display Colors: 16M Colors; Pixel Density (In PPI): ~ 529 PPI; Touch Screen: Multi Touch Support; Touchscreen Technology: Capacitive Touch; Display Protection: Yes; Features: QHD display~529 PPI 1500: 1 contrast ratio 3D curved glass screen Capacitive Corning Gorilla Glass 5 Force Touch Multi-touch Scratch resistant Touch sensitive; Secondary Display: No; Screen to Body Ratio: 83%; Camera Type; Dual ...

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Samsung Galaxy S8 Plus G955K