Flash firmware on Vargo VX4
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How to flash Vargo VX4?
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 on which developers lay out 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 an SD card into the gadget. It must have enough memory for 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.
Download the archive with Firmware and place it on the SD card.
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, 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.
Write the firmware and other necessary files to the SD card. Using a PC or laptop card reader, it will be much faster.
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, it is recommended to clear the 'Cache' and 'Data' sections. This will delete all user data from the device, but avoid a wide range of software errors and other problems. You must press 'WIPE' on the main screen.
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 location where you copied the files. 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 phone's memory will begin, accompanied by logging and filling in the progress bar.
The completion of the firmware installation procedure is indicated by the inscription 'Successful'.
Summary: Operating system: Android 8.0 Oreo; Processor: Octa-Core (4x Cortex A53 2.0 GHz 4x Cortex A53 1.6 GHz); Chipset: MediaTek Helio P23 (MT6763) (16 nm); Internal memory: 6GB 128GB, 6GB · 128GB; GPU: ARM Mali-G71 MP2; Type: LCD IPS; Size: 6.2" inc; Resolution: 1080 x 2246 px; Display colors: 16M; Screen area: cm2; Screen format: 18:9 (height:width); Screen to body ratio: 90%; PPI /points per inch/: 402 PPI; Touchscreen: capacitive touchscreen; Network: 2G / 3G / 4G /; NFC: No; Edge: Yes; Bluetooth: Bluetooth 4.2, A2DP, LE; SIM card: Dual SIM, dual stand-by (Nano SIM Nano SIM); GPRS: Yes; GPS: GPS, A-GPS, GLONASS; Wi-Fi: 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, ...
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