Flash firmware on Fly FS457 Nimbus 15
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How to flash Fly FS457 Nimbus 15?
Why reinstall the firmware?
Errors begin to appear in the Android operating system.
Some applications stop opening.
Some programs from the Play Market do not start.
The phone turns off for no apparent reason.
The phone started to work slowly.
You are not satisfied with the functionality of the stock firmware.
Where can I find the firmware?
On the official website of the manufacturer.
On specialized resources where users post custom or official OS.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to your computer.
Insert SD card. An SD card is needed to write firmware to it.
Find out the exact model of your smartphone.
Fully charge your device's battery.
Find and download the 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 agree to install the firmware, as well as agree to grant the application Superuser rights and click 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, the 'Select Device' drop-down list is available, in which you need to find and select the device model for installing the recovery.
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. Select the file downloaded in the previous step.
Press the 'FLASH TO RECOVERY' button and confirm your choice, press 'OK'.
When the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure is now complete.
Copy the required 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 in recovery, it is convenient 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 tap on the 'REBOOT RECOVERY' button. The phone will reboot into the recovery environment automatically.
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.
Everything is ready to start flashing. Press the 'Install' button.
The file selection screen is displayed. At the very top is the 'Storage' button, select the location where the firmware file is located.
Select the location where you copied the files..
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 flashing the phone will begin, accompanied by the appearance of inscriptions in the log field and the movement of the progress bar.
The completion of the installation procedure is indicated by the inscription 'Successful'.
Summary: OS: Android 7.0 Nougat; Processor: Spreadtrum SC9832A 1,50 GHz; Number of cores: 4; RAM memory: 1 GB; DualSIM: Yes; Internal memory: 8 GB; Memory cards: microSD, microSDHC, max 32 GB; Main display: TFT 16M colors 480 x 854 px (4.50") 218 ppi; Touchscreen: Yes; Digital camera: 5 Mpx, 2592x1944 px; Flash: Yes, LED; Secondary camera: 0.3 Mpx, 640x480 px; Video: MPEG4, H.263, H.264; MP3: Yes; Speakerphone: Yes; Radio: Yes; Bluetooth: Yes, v4.0; NFC: -; GSM frequencies: 900/1800; Standard UMTS: 900/2100; GPS: Yes; GLONASS: -; WiFi: Yes, v802.11 b/g/n; EDGE: Yes; GPRS: Yes, class 12; USB Yes, v2.0; WAP: Yes, v2.0; IrDA: -; LTE: Yes; HSCSD: -; HSDPA: Yes; HSPA: Yes; HSPA: Yes; HSUPA: Yes, 5,76 Mbi ...
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