Extract the and the Nokia C20 Stock Firmware files on your PC.
Disclaimer: Flashing custom or stock firmware involves risk. The author and website are not responsible for any device damage, data loss, or voided warranty. Proceed at your own risk. nokia c20 flash tool
Before you begin, you must download the correct firmware file for your specific variant. Nokia C20 files usually come in .zip or .tar format. Extract the and the Nokia C20 Stock Firmware