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Samsung S4 Sprint L720T black cannot make USB connection
I just bought samsung galaxy s4 sprint L720T. I followed below steps to make USB connection
1. Go to setting to open Developer Options then enable Debuging USB
2. Install lasted driver (1.5.45) - restarted PC
3. Install Kie 3
But my PC still doesn't recognize my phone, I charged only. My phone ESN is clean and have not unlocked.
I am going to bring it to my country to unlock... but I wonder if it is root cause
I appreciate your help.