Here is a solid guide on how to handle YG300 firmware, where to find links, and how to install them safely.
Each variant has completely different chipsets (MTK, Rockchip, or Nordic). Always check the “About” section in your device settings or the label under the battery. yg300 firmware link
On Mac: Open -> Select the drive -> Click Erase -> Choose MS-DOS (FAT) . Step 2: Transfer the File Here is a solid guide on how to
Method varies by version; most use a Windows PC and a USB-to-Serial adapter (not USB charging cable). where to find links
Never download a random firmware file from a forum or video description without verifying your hardware specifications first.