Flash firmware on BLU C7
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How to flash BLU C7?
Why reinstall the firmware?
The operating system keeps getting errors.
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 began to work slowly.
You want to update the firmware, as it does not suit you in terms of functionality.
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 your SD card into your phone. It must have enough memory to fit the firmware.
Determine your smartphone model.
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 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.
On the main screen of the application, click 'Select Device', and find 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'.
When the message 'Flash Completed Succsessfuly!' appears on the screen. Click the 'OK' button. The TWRP installation procedure is now 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 enter the menu accessible by pressing the button with three stripes in the upper left corner of the main screen of the application. 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.
You can start flashing. Click the 'Install' button.
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, accompanied by logging and filling in the progress bar.
When the procedure for installing the firmware is completed, the message 'Successful' appears on the screen.
Summary: Operating system: Android 10 (Go edition); Processor: Quad-core 1.3 GHz Cortex-A7; Internal memory: 32GB 1GB RAM; External memory: microSDXC; Type: IPS LCD; Size: 6.5 inches, 102.0 cm 2; Resolution: 720 x 1600 pixels, 20:9 ratio; SIM: Dual SIM (Nano-SIM, dual stand-by); Dimensions: 165 x 76.5 x 8.9 mm (6.50 x 3.01 x 0.35 in); Weight: 186 g (6.56 oz); Colors: Black, Blue, Green, Red; 2G Network: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2; 3G Network: HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100; WLAN: Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot; Bluetooth: 4.0, A2DP; GPS: Yes, with A-GPS; NFC: No; USB: microUSB 2.0; Speed: HSPA 21.1/5.76 Mbps; Technology: GSM / HSPA; Camera: 8 MP 0.3 MP, (depth) ...
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