Flash firmware on Coolpad Cool 30i
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How to flash Coolpad Cool 30i?
Why reinstall the firmware?
Errors constantly appear in the Android OS.
Some installed applications stop opening.
Some programs from the Play Market do not start.
The phone restarts for no reason.
The phone is slow.
You are not satisfied with the possibilities of the stock firmware.
Where can I find the firmware?
On the official website of the phone manufacturer.
On sites where third-party developers and phone manufacturers post custom or official OS.
What should be done before installing the firmware?
Back up your phone's user data.
Insert your SD card into your phone. It must have enough memory to fit the firmware.
Determine your smartphone model.
Fully charge your phone. If the battery runs out during boot, the device will no longer turn on.
Find and download the archive with Firmware. Place it on the SD card.
Installing TWRP Recovery
Download the Official TWRP App from the Play Market. And install it.
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.
On the next screen, select 'TWRP FLASH' and give the application root rights.
On the main screen of the application, click 'Select Device', and select your phone model.
After selecting a device, the program redirects the user to a web page to download the corresponding image file of the modified recovery environment. 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.
Click the 'FLASH TO RECOVERY' button and confirm your choice, click 'OK' in the question window.
After the burn process is complete, the message 'Flash Completed Succsessfuly!' appears. Click 'OK'. The TWRP installation procedure can be considered complete..
Copy the firmware and other necessary files to the SD card.
Insert a 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 'Reboot' 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. This will delete all user data from the device, but avoid a wide range of software errors and other problems.
You can start flashing. Click the 'Install' button.
The file selection screen appears. At the very top is the 'Storage' button, select the location where the firmware file is located.
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, 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 writing files to the device's memory will begin, accompanied by the appearance of inscriptions in the log field and the completion of the progress bar.
After the firmware installation procedure is completed, the 'Successful' message appears on the screen.
Summary: OS: Android 13, CoolOS; Chipset: Mediatek MT6765 Helio G37 (12 nm); CPU: Octa-core (4x2.3 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53); GPU: PowerVR GE8320; Type: IPS LCD; Screen Size: 6.56 inches, 103.9 cm 2 (~81.5% screen-to-body ratio); Resolution: 720 x 1600 pixels, 20:9 ratio (~267 ppi density); Card slot: microSDXC; Internal: 256GB 6GB RAM; Dual: 50 MP, f/1.6 (wide), PDAF Depth camera; Features: LED flash, panorama, HDR; Video: 1080p@30fps; Single camera: 8 MP; Video: 1080p@30fps; Loudspeaker: Yes; 3.5mm jack: Unspecified; Sensors: Fingerprint, accelerometer, proximity; Type: 4500 mAh, non-removable; Charging: 10W wired; Dimensions: 166.2 x 76.7 x 8.3 mm (6.54 x 3.02 x 0.33 in); Weight: 197.6 g (6.98 oz); SIM: Dual SIM (Nano-SIM, dual stand-by); ...
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