back button & apps button KEYS not working
Apps button & Back Button not working, tried that Firmware version (*#2663#) thing also, TSP FW update and Touch key FW update both, still not working. Please help its == Samsung J5 ==
Is this a good question?
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Just replaced lcd on a friend's note 5 and back/recent keys will light up but no action.. have tried (*#2663#) ,hard/soft reset with recovery reboot and deletion of partition cashe', With no avail. Is it possible the ribbon cable connection for the lcd isn't a complete one? Allowing the picture but not the soft key functionality?
by Wookiewarrior
It should be noted that the light for the back button and recent apps button might also be turned off if your samsung is in Power Saving mode. Go to Settings>Power Saving>Restrict Performance and uncheck the box that turns these lights off. Once the box is unchecked, your phone will use a little more battery power in the Power Saving mode, but your Back button light and your Recent apps light will both illuminate.
by Gary Wohlgeschaffen