Sorry for the late reply due to the weekend.
About the android 5.1 lollipop, sorry that the android 4.4 unit could not be updated to android 5.1 cause some inside limitation.
We have tested the android 5.1 firmware on android 4.4 unit and it's not available.
If you want to use the firmware to solve some small issues, you can first do a factory data reset.
Or we can send you the latest firmware for your unit RQ0364, hope your understanding.
RegardsStatistics: Posted by Jammy — Mon Sep 26, 2016 9:47 am
]]>