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Flash firmware on Oppo F1s 64GB

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How to flash Oppo F1s 64GB?


Why reinstall the firmware?

Errors periodically appear in the Android operating system.

Some installed applications do not open.

Some applications from the Play Market do not start.

The phone restarts by itself for no reason.

The phone began 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 users post custom or official OS.


What should be done before installing the firmware?

Create a backup copy of user data and transfer it to your computer.

Insert your SD card into your phone. It must have enough memory to fit the firmware.

Find out the exact model of your smartphone.

Fully charge your phone battery.

Find and download the archive with Firmware. And place it on the SD card.





Installing TWRP Recovery

Install the Official TWRP App via the Play Market. And run this application.

When you start the application for the first time, you must agree to install a new firmware and all the risks associated with this, 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.

TWRP

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, 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.

Press the 'FLASH TO RECOVERY' button and confirm your choice.

When the message 'Flash Completed Succsessfuly!' appears on the screen. Click the 'OK' button. The TWRP installation procedure is now complete.

Copy the firmware and other necessary files to the SD card.

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

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.

Press the 'Install' button to start the flashing.


TWRP

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.



TWRP

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 corrupted files when writing to the phone's memory sections.

The procedure for writing files to the phone's memory will begin, accompanied by logging and filling in the progress bar.

After completing the installation procedure, a 'Successful' message appears on the screen.





Summary: Operating System: Android v5.1.1 (Lollipop); SIM Slot(s): Dual SIM, GSM GSM; SIM Size: SIM1: Nano, SIM2: Nano; Network: 4G: Available, 3G: Available, 2G: Available; Fingerprint Sensor: Yes; Quick Charging: No; Height: 154.5 mm; Width: 76 mm; Thickness: 7.3 mm; Weight: 160 grams; Colours: Gold, Grey; Screen Size: 5.5 inches (13.97 cm); Screen Resolution: HD (720 x 1280 pixels); Pixel Density: 267 ppi; Display Type: IPS LCD; Screen Protection: Corning Gorilla Glass v4; Touch Screen: Yes Capacitive Touchscreen, Multi-touch; Screen to Body Ratio: 70.86 %; Chipset: MediaTek MT6750; Processor: Octa core, 1.5 GHz, Cortex A53; Architecture: 64 bit; Graphics: Mali-T860 MP2; ...

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Oppo F1s 64GB