A: No. FRP bypass is not SIM unlock. This only removes the Google account lock. Carrier locks require a separate service.
The actual best FRP removal method for a Samsung device you legitimately own is not a sketchy v14 tool. It is: samsung frp tool v14 best
Professional repair shops do not rely on "v14 best" tools. They use paid, updated boxes like SamFw FRP Tool (which has a legitimate free version) or Maftool, which are transparent about their methods and update weekly. A: No
The tool exploits older security flaws in Samsung’s combination firmware or Android’s setup wizard, depending on Android version: Professional repair shops do not rely on "v14 best" tools
For Android 9+ devices, the tool often uses a test signed combination firmware to temporarily disable FRP, then re-flashes stock firmware (though that step is manual in v14).