Flash firmware on Asus ZenFone 3 Ultra ZU680KL
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How to flash Asus ZenFone 3 Ultra ZU680KL?
Why reinstall the firmware?
Errors in the operation of the Android OS begin to appear.
Some applications will not open.
Many programs from the Play Market do not start.
The phone restarts or shuts down by itself.
The phone slows down a lot during operation.
You want to update your firmware.
Where can I find the firmware?
On the official website of the manufacturer.
On specialized services where users post custom or official OS.
What should be done before installing the firmware?
Create a backup copy of all personal information: contacts, photos and transfer it to another computer.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
Remember 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.
Installing TWRP Recovery
Download the Official TWRP App to your phone from the Play Market. And install this app.
At the first start, you need to give consent to future manipulations, as well as consent to granting the Superuser rights to the application. Check the checkboxes and press the 'OK' button.
In the next screen, select the item 'TWRP FLASH' 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 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.
When the file is loaded, you need to 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'.
The recording process is very fast, and upon completion, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete.
Copy the required files to the memory card. Using a PC or laptop card reader.
Insert a SD 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. 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. Press the 'Install' button.
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 storage to which the files were copied.
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: Type: Smartphone, Phablet; Smart Phone OS: Android; OS ver: Asus ZenUI3.0, Android 6.0 Marshmallow; SIM: Micro SIM, Nano SIM, Dual SIM, Dual Standby; CPU: Qualcomm MSM8976 Snapdragon 652Quad-core 1.8 GHz Cortex-A72 & quad-core 1.4 GHz Cortex-A53; Processor Speed: 1.8 GHz 1.4GHz; Storage: 32GB, 64GB, 128GB; RAM: 3GB, 4GB; External Storage: microSD, up to 200 GB (uses SIM 2 slot); Battery: Non-removable Li-Ion 4600 mAh batteryTalk time Up to 34 h (3G); Screen Size: 6.8 inches; Resolution: 1080 x 1920 pixels; Main Camera: 23 MP; Front Camera: 8 MP; Features: WiFi, Hotspot/Tethering: , GPS, Bluetooth, Flash; Dimensions: 186.4 x 93.9 x 6.8 mm (7.34 x 3.70 x 0.27 in); Weight: ...
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