12-10-2018 07:52 PM
The difference between 1st amd 2nd gen m715q seems just the BIOS rom chip. Changed from 8MB to 16MB.
I prefer replacing the rom chip rather than getting a new ver mainboard because the mainboard as parts costs hk$1400 which is ridiculously expensive.
HK Lenovo can help to order only if u can provide a serial number of the 2nd gen m715q. Otherwise they wont sell u the parts.