Now NaviFirm is showing Belle firmwares for C6 – 01, C7, X7, E6, E7 along with N8 which has been available since some time.These also are available for download from Navifirm for various product codes for many regions , as you can see from the screenshots attached.
So 8th Feb date seems possible now, as NaviFirm availability is always a precursor to update firmware release.
Check also for E6 and C6 – 01,
