This tutorial for Wimax BM622i modem you need a know how in hex and electronics, you need also a hot air tools. Change MAC using LPT and dump files nad SPI Program
Here is the SPI circuit You can buy parts in electronics shop you won't spend 200 pesos.
Connect your Flasher on LPT (Parallel Port)
New PC motherboard don't have parallel port
Run SPI program Select Device family Spansion