Setting Bluetooth Remote Controller by Infrared Method，see：https://discourse.coreelec.org/t/coreelec-9-0-x-remote-files/363，it can not work.
according to https://discourse.coreelec.org/t/alfawise-z1-bluetooth-remote-configuration/2955，and ,it can not work too.
Get keys on Android boxes：Vendor_0a5c_Product_8502.kl in /system/usr/keylayout
Vendor_0a5c_Product_8502
#pwr
key usage 0x070017 POWER #KEY_T
key usage 0x070009 BACK #KEY_I
key usage 0x070011 MENU #KEY_D
key usage 0x070016 HOME #KEY_S
key usage 0x070028 DPAD_CENTER #KEY_ENTER
key usage 0x070052 DPAD_UP #KEY_UP
key usage 0x070050 DPAD_LEFT #KEY_LEFT
key usage 0x07004f DPAD_RIGHT #KEY_RIGHT
key usage 0x070051 DPAD_DOWN #KEY_DOWN
key usage 0x07000a VOLUME_MUTE #KEY_G
key usage 0x070020 VOLUME_DOWN #KEY_3
key usage 0x07001f VOLUME_UP #KEY_2
key usage 0x070010 ASSIST #KEY_M
key usage 0x070004 CHANNEL_UP #KEY_A
key usage 0x070005 CHANNEL_DOWN #KEY_B
key usage 0x070031 MEDIA_PLAY_PAUSE #KEY_BACKSLASH
key usage 0x070019 MEDIA_FAST_FORWARD #KEY_V
key usage 0x070036 MEDIA_REWIND #KEY_COMMA
#love
key usage 0x070008 BOOKMARK #KEY_E
#info
key usage 0x07000b APP_SWITCH #KEY_H
#exit
key usage 0x070007 SLEEP #KEY_D
Vendor_0a5c_Product_8502.kl (885 Bytes)
Please help me .Thank you .