Yulian Tech · Over-the-air firmware updater for your remote
Renamed to "Yulian Upgrade". No functional changes.
Open this page on your phone, then tap the button above. If Android warns about installing from an unknown source, allow it in system settings. If you see "App not installed" or two apps with the same name, uninstall the old version first — version 1.30 and later update in place.
① Open the app → ② pick the model matching your remote (compare with the photo) → ③ connect the remote over Bluetooth → ④ wait for the firmware download → ⑤ tap "Start upgrade".
Note: compare the photo and the key count when picking a model — the app cannot detect your remote, and the wrong firmware may make it unusable.
Keep the remote close to the phone and stay on that screen while upgrading.