Some generic Rkpx3 boxes disable OTA. If you get a “No updates available” message, proceed to the manual method below.
Do not use firmware for different screen sizes or button configurations; this can permanently "brick" the unit. Rkpx3 Android Update
: Android 4.4 (KitKat). This typically requires an update.img file. 2. Prepare the Installation Media Some generic Rkpx3 boxes disable OTA
adb push bt_firmware /vendor/etc/firmware/ adb push wlan_firmware /vendor/etc/firmware/ adb reboot Rkpx3 Android Update