The best way is to replace a remote control, because Htv some App can not use the mouse control, if you have extra, such as tvpad3 remote control, you can replace the remote control code, but can only be shut down, can not boot, you can use htv power plugged into the TV USB, with TV Control boot and shutdown, but you should root, htv3 root, kingroot or kingoroot, and then use ES File Explorer app, open the ES file app (preferably with the mouse control) slide to the bottom of the left, select Root Explorer ON, If you have a device root will have a display box Select root privileges, slide up, select Device ☞ system_etc ☞remote.conf, long press the remote.conf file, select rename, just give a name htv_remote.conf, and then Use tvpad4 remote.conf file copied to etc, restart the device.
The best way is to replace a remote control, because Htv some App can not use the mouse control, if you have extra, such as tvpad3 remote control, you can replace the remote control code, but can only be shut down, can not boot, you can use htv power plugged into the TV USB, with TV Control boot and shutdown, but you should root, htv3 root, kingroot or kingoroot, and then use ES File Explorer app, open the ES file app (preferably with the mouse control) slide to the bottom of the left, select Root Explorer ON, If you have a device root will have a display box Select root privileges, slide up, select Device ☞ system_etc ☞remote.conf, long press the remote.conf file, select rename, just give a name htv_remote.conf, and then Use tvpad4 remote.conf file copied to etc, restart the device.
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Tvpad4 remote control file: https://mega.nz/#!QMxHxIST!sD_H1Lwh4LSrg0WzMogkua9gfzx5C4bdgu9jykG3W_0
FYI: https://www.amazon.com/Control-Wireless-Keyboard-Infrared-Windows/dp/B01ALCMV1C/ref=sr_1_10?ie=UTF8&qid=1513041643&sr=8-10&keywords=fly+mouse+remote
or https://www.ebay.com/itm/MX3-2-4Ghz-Wireless-Air-Fly-Mouse-Keyboard-Remote-Control-for-Android-TV-PC-US/222455412005?hash=item33cb603525:g:ZP0AAOSwWxNY20b1