How do you update bios without CPU?

f8iscumming

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I have a lga1151 mb (h110m) and it is only compatible with 6th gen. But I would need to update it to a 7th gen to get the processor I want (g5400). I would need a boot cpu to do this but I don't have one with my motherboard. Is there any strategies to get this done? If not, is there anyway I can get my hands on a boot cpu for lga1151 (6th gen)
 
Solution
I just realized something. Sorry I didn't think of it. If you have a H110M the Pentium G5400 might not work. If you mean the new G5400 then it needs a 300 series chipset.
H110M doesn't help much as most vendors use that. Is it an Asus, MSI, Gigabyte etc? Some have the ability to do whats called a BIOS flashback, where you load the BIOS file to a thumb drive and plug it into a specific port and press a button and it does a normal BIOS flash without the CPU but we ned the vendor and exact model to know.
 

f8iscumming

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im sorry i forgot to include. its a gigabyte
 

f8iscumming

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i forgot to include. its a gigabyte
 

f8iscumming

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ohhhhhhhhh thank you. i forgot to check the gen