Junsun is one of the most popular manufacturers of Android head units, selling thousands of units a month. However, they do not have a singular, unified software build.
The most reliable method is contacting the Junsun Official Store or visiting their Update Tools page for manual downloads and APK files. junsun firmware download
The safest method is visiting the Junsun Update Tools page. You can often book a Free Remote Diagnostic or contact support with your order number to receive a direct download link. Junsun is one of the most popular manufacturers
There is no single "junsun firmware download" button. Always verify the MD5 checksum if provided, and never use a file meant for a different MCU number (e.g., do not put TS10 firmware on an MT8163 unit). they do not have a singular