Yes google cardboard is compatible with lenove k4 noteThe Lenovo Vibe K4 Note is a dual SIM (GSM and GSM) smartphone that accepts two Micro-SIM. Connectivity options include Wi-Fi, GPS, Bluetooth, NFC, FM, 3G, 4G (with support for Band 40 used by some LTE networks in India). read more
When inside cardboard, there is no magnetic field orientation, so it does not work at all. Programmers will not help you. You need another phone, with build-in gyroscope. read more