Here are service codes for the Samsung Galaxy Note 3 android phone, 100% working. You can use these codes to quickly check IMEI, version and test functions such as camera, accelerometer , barometer etc.

*#0*# Service test of phone functions.

*#0808# USB settings/setup

*#12580*369# Phone version

*#06# IMEI check

*#9900# System dump menu

*#0228# Battery status, network signal strength

*#0011# Service mode, signal strength