: If you only need to clear data without a full flash, dial *#7370# on the dialer to perform a hard reset.

: Ensure you have the Nokia Connectivity Cable Drivers installed on a compatible Windows PC (Windows XP, 7, or 10 32-bit are most reliable for older tools).

: Flashing carries a risk of "bricking" the device if interrupted. Ensure a stable power source and do not disconnect the cable until the software confirms completion. Nokia 6700 classic User Guide - Microsoft

: Connect the phone to the PC and select PC Suite or OVI Suite on the device.

. Notable versions include (which added free voice navigation and improved camera autofocus) and sw07.90 .