The uses a Unisoc (Spreadtrum) SC9863A chipset . Because it uses this chipset, you need a PAC firmware file and the SPD Flash Tool (also known as ResearchDownload) to install it.
Flashing stock firmware on your Nokia smartphone can resolve persistent software issues, boot loops, or performance degradation. If you own the Nokia C20 (model TA-1352), restoring your device requires a specific factory firmware file known as a PAC file. nokia ta1352 pac file link
Use an original or certified data cable. A loose connection during flashing can ruin the motherboard. The uses a Unisoc (Spreadtrum) SC9863A chipset
Flashing a PAC file completely wipes the internal storage. Back up all photos, contacts, and personal files. If you own the Nokia C20 (model TA-1352),
This essay explains what a PAC file is, where to find the correct link for your Nokia TA-1352, and how to input it correctly.