To ensure a successful revival of your Nokia 6700 Classic, verify your software settings and match your file versions precisely before hitting the flash button. To help you get exactly what you need, please clarify:

Ensure your battery is charged and the cable is not faulty.

Which of these would you like?

This usually occurs if you attempt to downgrade the firmware version or if the security area (PM field) of the phone is corrupted.

Removes network locks if a region-free flash file is used.

Decouples the phone from specific network carrier branding.

However, I notice you added "interesting text" — could you clarify what you mean? For example: