Flash firmware on Oppo R9
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How to flash Oppo R9?
Why reinstall the firmware?
Errors constantly appear in the Android operating system.
Some installed applications do not open.
Many programs from the Play Market do not work.
The phone shuts down and restarts for no apparent reason.
The phone began to slow down a lot.
You are not satisfied with the functionality of the stock (official) firmware.
Where can I find the firmware?
On the official website of your phone manufacturer.
On sites where developers post custom or official OS.
What should be done before installing the firmware?
Back up your contacts and user data and transfer it to another medium.
Insert your SD card into your phone. An SD card is needed to write firmware to it.
Determine your smartphone model.
Fully charge your device. If the battery runs out during the firmware, the device will no longer turn on.
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 need to give consent to future manipulations, as well as to give consent to granting the application Superuser rights and click the 'OK' button.
After moving to the next screen, you need to select the 'TWRP FLASH' item and give the application 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.
After adding the image file to the program, click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK'.
When 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 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 delete all user data from the phone, this will avoid errors in the software, as well as other problems. Press 'WIPE' on the home screen.
Now you can start flashing. Press the 'Install' button.
On the file selection screen, 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.
Find the file we need and click on it. A screen opens with a warning about possible negative consequences, as well as the item 'Zip signature verification'. This item should be checked by placing a cross in the check-box, which will avoid using damaged files when writing to the phone's memory sections.
The procedure for flashing the phone 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: 2G Network: GSM 850 / 900 / 1800 / 1900CDMA 800; 3G Network: HSDPA 850 / 900 / 1900 / 2100CDMA2000 1xEV-DO, TD-SCDMA; 4G Network: LTE band 1(2100), 3(1800), 5(850), 38(2600), 39(1900), 40(2300), 41(2500); SIM: Dual nano SIM; Dimensions: 151.8 x 74.3 x 6.6 mm, 145 grams (5.98 x 2.93 x 0.26 inches, 5.11 ounce); Keyboard: Touchscreen; Colors: White, Gold; Cover: Aluminum; Type: IPS, capacitive, multitouch touchscreen with 16,000,000 colors; Screen Size: 5.50 inches, 1080 x 1920 pixels, 401 pixels per inch (PPI); Card slot: MicroSD, up to 128GB; Internal: 64GB; Operating System: Android 5.1 Lollipop; Processors: 2.0GHz octa-core Cortex-A53 CPU, Mediatek MT6755 Helio P10 chipset, Mal ...
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