Flash firmware on Asus Zenfone Selfie ZD551KL 16GB
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How to flash Asus Zenfone Selfie ZD551KL 16GB?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some applications stop opening.
Some programs from the Play Market do not start.
The phone restarts for no reason.
The phone started to work slowly.
You have decided to try a different version of Android.
Where can I find the firmware?
On the official Internet resource of the phone manufacturer.
On sites where third-party developers and phone manufacturers post custom or official OS.
What should be done before installing the firmware?
Back up your phone's user data.
Insert SD card. An SD card is needed to write firmware to it.
Find out the exact model of your smartphone.
Charge your phone fully.
Find and download the archive with Firmware. Place it on the SD card.
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 agree to install the firmware, as well as agree to grant the application Superuser rights and click 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, click on the 'Select Device' drop-down list, and select 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, 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.
Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Copy the firmware and other necessary files to the SD card.
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. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.
Firmware via TWRP
Before flashing, you need to delete all user data from the phone, this will avoid many problems. press 'WIPE' on the home screen.
Press the 'Install' button to start the flashing.
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 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, 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 flashing the phone will begin, 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: Smart Phone OS: Android; Smart Phone OS ver.: 5.0 (Lollipop); Shape: Bar; SIM: Dual SIM (Micro-SIM), Dual Standby; Processor Speed: ; Internal Storage: 16GB eMMC Flash; RAM: 2GB LPDDR3 RAM; External Storage: MicroSD card (up to 64 GB); Battery life: ; Screen Size: 5.5 inch; Resolution: 1920x1080; Touch Screen: yes; Screen Type: Scratch Resistant Corning Glass with anti-fingerprint coatingCorning Gorilla Glass 4; Pixels: 13mp / 13mp (front); Flash: yes; Image Stabilization: ; Waterproof: ; GPS: yes; Dimensions (WxHxD): 156.5 x 77.2 x 10.8 ~ 3.9 mm (WxDxH); Weight: 170g (with battery); ...
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