Yes. The 4G and 5G variants have different MediaTek chipsets (Helio G85 vs Dimensity). Never mix them.
(KL5) can be done through an official system update or a manual reflash using specialized tools like the . Method 1: Standard System Update (OTA) firmware tecno spark 30c install
If the phone is just slow, a factory reset is often safer than a full firmware reinstall. firmware tecno spark 30c install
: Unzip the downloaded firmware and the SP Flash Tool on your PC. firmware tecno spark 30c install
There are two main types of firmware files you may encounter: