Flash firmware on Samsung Galaxy J7 V 2nd Gen
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How to flash Samsung Galaxy J7 V 2nd Gen?
Why reinstall the firmware?
Errors periodically appear in the Android operating system.
Some installed applications do not open.
Many programs from the Play Market do not work.
The phone restarts or shuts down by itself.
The phone is slow.
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 developers 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 an SD card into your phone to write the firmware to it.
Find out the exact model of your smartphone.
Fully charge your phone battery.
Download archive with Firmware. 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.
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.
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 a device, the application will direct the user to a web page to download the appropriate modified recovery environment image file. 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. Select the file downloaded in the previous step.
Now 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..
Write the firmware to the SD 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. Open the menu and select the 'Reboot' item, and then click on the 'REBOOT RECOVERY' button.
Firmware via 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.
Press the 'Install' button to start the flashing.
The file selection screen appears. At the very top there is a 'Storage' button for selecting an SD card.
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, 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, 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 8.0 Oreo; CPU: ARM Cortex-A73; CPU frequency: 1600.0 MHz (2-core); Chipset: Samsung Exynos 7 Octa 7884; GPU: ARM Mali-G71; RAM Memory: 2 GB; Display: TFT Color (16M), 720x1280 px (5.5") 267ppi; Touch screen: yes; Built-in memory: 16 GB; Memory card: microSDXC; Camera: 12.98 MPx; Resolution: 4160 x 3120 px; Flash: LED; Autofocus: yes; Diaphragm: f/1.9; Optical zoom: no; Digital zoom: yes; Second camera: 12.98 Mpx; Resolution: 4160 x 3120 px; Bluetooth: 4.2; EDGE: no; GPRS: no; GPS: yes; A-GPS: yes; BeiDou: yes; Glonass: yes; LTE: LTE-FDD: 700, 850, 1700/2100, 1900, 2600; USB: 2.0; WAP: 2.0; Wi-Fi: 802.11 a/b/g/n/ac; Audio formats: AAC, AAC , MIDI, MP3, WMA, WAV, AMR, FLAC, OGG, M ...
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