While the S7 is older, some regional variants (particularly unlock s7 for 200-300

If your device is paid off and out of contract, your carrier is often legally obligated to unlock it for free. Usually ₹0 / $0 . directly from a reputable eBay seller for ~$220–$260

Devices like the "Gevey SIM" or "R-SIM" trick your phone into thinking the SIM is from the original carrier. These cost $15-$30. However, they drain battery, cause "No Service" errors, and stop working after iOS/Android updates. We do not recommend this for a daily driver. Usually ₹0 / $0

These use modified software or server-side exploits. They work, but they are often temporary. A system update from Samsung can re-lock your phone. Furthermore, these methods often require rooting your device, which permanently disables Samsung Pay and Knox security.

If you are looking to unlock a Samsung Galaxy S7 , paying 200–300 (assuming USD or similar currency) is significantly higher than the standard market rate. Most unlocking services for this older model typically cost $2.63 and $50 In many cases, you may even be able to unlock the device