Network locked iPhone (5, 5s, 5c) are so much at a low price, even under $200. But its system unlocked price is over $700. So peoples are seeking how to open to use their local SIM card easily. But the iPhone has a robust security system, which is impossible to break easily. It is also known as jailbreak. On the other hand, they also seek to purchase its unlocked code for &4-&5. a Few days ago, my friend asks me to buy an unlocked code for $4 or $5. But I ask him why? He tells me he has an iPhone 5s, and he wants to send it outside of the US.
Trick to Unlock
1. Purchase a contact-free iPhone, then you will use any local SIM card or network.
2. If you have an already purchased iPhone, contact your carrier. They will provide an unlocked code for your phone. It may take up to seven days.
3. Or contact the third party, which professionally unlocks iPhone or another phone, but I think there is a jailbreak risk.