Firmware is not universal. You must match your unit's specific hardware specs: Junsun 8227L Android CarNavi firmware update
Finding the right can be tricky because many Chinese head units with this chipset use "fake" version numbers to appear newer than they are. Genuine updates are rare and highly specific to your exact hardware variant, such as the Junsun or XY Auto brands. Core Update Methods 8227l Android 10 Firmware Download --BEST
The most reliable firmware is usually hosted on manufacturer support pages or dedicated community repositories: Firmware is not universal