However, this remains a fragile ecosystem. A user error—such as forcing an incompatible Chinese firmware update onto a global unit—will irreversibly overwrite the DRM keys, permanently dropping the device to L3 (480p) streaming quality. Consequently, the firmware serves not only as an operating system but as a secure enclave. XGIMI’s support team frequently advises against cross-flashing, and the official global firmware update packages are signed to prevent installation on non-certified hardware.
If you must downgrade: Only use the USB method with an official older Global firmware. Be aware that downgrading will factory reset your device and may break Widevine L1, meaning Netflix will only play in SD.