How to Enable USB debugging mode in your Samsung GALAXY S4 GT-I9500 Mobile

Lava IRIS 502 Mobile Samsung GALAXY S4 GT-I9500 Mobile Samsung Galaxy Note 3 SM N9005 Mobile

STEP ① Tap on "Developer Options" in your Samsung Galaxy S4 Android Phone

Android Mobile Developer options

STEP ② - Switch ON "Developer Option" in your Samsung GALAXY S4 device

Tap ON Developer Option

STEP:③ - Now Display a security message, Tap on Ok button to proceed

Allow USB Debugging

STEP:④ Now "Debug Mode enabled” to be used with DRPU Bulk SMS Software

Debug mode enabled