mt7612 can't load the mac

[starP-W]

Hi,
I'm using Lenovo Y1S (CPU mt7620A, WLAN Hardware: MediaTek MT7612E),
I tried to use mt7620 and mt7612, and the driver of mt7620 works well if I don'tcopy the eeprom to /lib/firmware.
However, the mt7612 driver can't get the device mac. I copied the mtd "factory" to /etc/wireless/mt7612/mt7612e.eeprom.bin and /lib/firmware/mt7612e.eeprom.bin, but it changed nothing.

And if I copy the eeprom to /lib/firmware, the driver of mt7620 couldn't get the mac address, too.

How to make both of the two drivers work properly? Looking forward to your reply.