Cal DATA LOST for hg 655b

Hello i have hg 655b router but the option of wirless is not show in my version i tried different version (17..19...18) but stiil is not show can any one help me please

This device uses a Ralink chip for wifi so those drivers need to be installed.

No bro my cal data is gone but i have a backup when he was working

But i dont now how to do it

If it's a partition in flash you could use kmod-mtd-rw to unlock writing then mtd write the backup data back.

So i tipe this( in putty ? For unlock writing ? Sorry but im new at this