10-25-2017, 10:29 AM
Hey Friends here,
I got a ThinkPad T470 recently and I found it's unlike the one my friends has sale in America,the AES-NI has been locked by BIOS,though some search on search engine and offical site of Intel I know that I5 6300u support AES-NI,but it was disabled by BIOS,when we power on the machine,at Init period,BIOS will writes 11b to MSR register:
But,I got a BIOS backup from my friend,since he has a America version of T470,and Flash it into the one I have,it doesn't work(runs perfectly but no AES enabled).So I guess there was some check in BIOS,if they found this is a sale in restrict area,they disable the AES,mostly I think they check model number,serial number,though compare with my friend's one,easily found that his model number is 20JM000SUS,mine are 20JMA00CCD(mine is Chinese version).So at first I tried use offical flash tool running on system to change the model number(with US BIOS),the tool told me successful changed model number,but when I reboot it I found it only changed the model number which OS got,at first page of BIOS setting it still showed orignal 20JMA00CCD,then I found if we flash with iso image(flash without OS)we have a choice to change the model number,but T470 doesn't has a CD or DVD ROM,so we need to "burn" that iso image into some capable usb stick,unfortunately I don't have one handy now.So back to extract bios,I found the Andy's SLC tool could successful extract the BIOS,but with days of search and check by using IDA and http://www.jakobheinemann.de/en/projects/j-asm.html jasm tool I cannot make sure the right one file and location to modify,So can you help on this?It's my honor and there will be a lot people got help from here.
The BIOS file with flash tool on OS:
https://pcsupport.lenovo.com/us/en/produ...s/DS120429
ISO image of BIOS:
https://pcsupport.lenovo.com/us/en/produ...s/DS120430
Sincerly,
Aaron
I got a ThinkPad T470 recently and I found it's unlike the one my friends has sale in America,the AES-NI has been locked by BIOS,though some search on search engine and offical site of Intel I know that I5 6300u support AES-NI,but it was disabled by BIOS,when we power on the machine,at Init period,BIOS will writes 11b to MSR register:
But,I got a BIOS backup from my friend,since he has a America version of T470,and Flash it into the one I have,it doesn't work(runs perfectly but no AES enabled).So I guess there was some check in BIOS,if they found this is a sale in restrict area,they disable the AES,mostly I think they check model number,serial number,though compare with my friend's one,easily found that his model number is 20JM000SUS,mine are 20JMA00CCD(mine is Chinese version).So at first I tried use offical flash tool running on system to change the model number(with US BIOS),the tool told me successful changed model number,but when I reboot it I found it only changed the model number which OS got,at first page of BIOS setting it still showed orignal 20JMA00CCD,then I found if we flash with iso image(flash without OS)we have a choice to change the model number,but T470 doesn't has a CD or DVD ROM,so we need to "burn" that iso image into some capable usb stick,unfortunately I don't have one handy now.So back to extract bios,I found the Andy's SLC tool could successful extract the BIOS,but with days of search and check by using IDA and http://www.jakobheinemann.de/en/projects/j-asm.html jasm tool I cannot make sure the right one file and location to modify,So can you help on this?It's my honor and there will be a lot people got help from here.
The BIOS file with flash tool on OS:
https://pcsupport.lenovo.com/us/en/produ...s/DS120429
ISO image of BIOS:
https://pcsupport.lenovo.com/us/en/produ...s/DS120430
Sincerly,
Aaron