The YT7260B is a common motherboard model used in Chinese Android head units (car stereos) powered by the AC8257 processor from manufacturer XYAuto . Firmware Update Process
Q: Will the update erase my existing footage? A: Yes—the update process reformats the internal storage. Always back up important videos to your computer before starting. yt7260b+update+link
A: Perform a “wipe data/factory reset” from recovery mode. Then re-flash the firmware using the “Lower Format” option in FactoryTool (advanced mode). The YT7260B is a common motherboard model used