Let’s get the bad news out of the way first. For some devices, you are wasting your time. is permanent on:
Go to Settings > About Phone > Build Number and tap on it 7 times. You'll see a message indicating that you're now a developer.
: In the past, specialized tools (often paid) claimed to flip this bit. However, many users report these services are often unavailable or no longer work for newer models. Carrier Requests
Before fixing the problem, you need to understand the architecture.