Changes

# Save backup on A;

# Save backup on A;

# Download it;

# Download it;

# Copy and save somewhere server's sn from hw.

# Copy and save somewhere B server's sn from logic->hw.

# Switch module ID on server B to A's ID;

# Switch module ID on server B to A's ID;

# Switch server mode to 'Gateway'

# Switch server mode to 'Gateway'

# Upload backup to B and restore it

# Upload backup to B and restore it

# Switch sn="xxxxxxxx" on B in logic.xml to the sn from p.3

# Switch sn="xxxxxxxx" on B in logic.xml to the sn from p.3