Hello,

Someone knows how to modify this bios?

Inspiron 17 5770 released 2017.

http://www.mediafire.com/file/owd3vj4925...-1.1.6.rom/file

or : http://www.mediafire.com/file/v9yzqkkek494bb6/bios.gz/file

with all options unlocked.
I tried using the guide but with no success.
Thank you.

I already have the bios extracted now I want to mod it.

I checked BIOS 116 from here - https://downloads.dell.com/FOLDER0506256...70_5770_116.exe
This is Intel Insyde BIOS, partial Aptio V, no easy way to modify this BIOS

Ok thanks for the help.
Pm me if you have something to tell me thanks.

Hi!
There was such a problem, videobios (gt650) of 209 should be inserted in 210 (judging by the reviews he after the firmware on 210 - constantly crashed), with the old videobios (209) - it works fine. How to do it right?

Did you test yourself, to see if issue affects you or not? If not, please test for a while and see, no need to go backwards unless there is a problem that affects you, other reports could be their particular hardware or driver specific
But yes, we can do, either with MMTool or UEFITool.

Please take backup now with programmer (I think you have, can't remember), then upload and give link, so I can check NVRAM and if you want we can test my theory on change menu in NVRAM.

This is a backup flashed 210 bios

OK, I will make three BIOS for you tonight. One with my test theory of trying to enable menus in NVRAM 2x BIOS here one with no NVRAM and one with edited NVRAM, other without that and downgraded vBIOS to 209 version.
When/if you test the NVRAM edit, if either fails, clear CMOS and should then be OK, if not boot to DOS and reflash other BIOS but if you try these be sure to try both even if one fails.

@alex0506 - all vBIOS and GOP is exact same in version 209 and 210, see image (And yes, I checked original 210 too in case your backup was 209 by accident)


Do you have flash programmer? Asking because I don't think empty NVRAM could cause bad flash/non-bootable, but I am not 100% certain that is always the case.
I have tested it on many board but you never know, so wonder if you can recovery easily or not?

Hi!
The official update to 210 in my case is an update of 2 regions - ME and BIOS region. (i thought that the firmware would be complete ...), so probably the dumps will be similar.
...Yes of course, if there are problems with the firmware, i can take from a friend programmer

Yes, I was only pointing out that vBIOS does not need rolled back to 209 version as you suspected, so can't be what's causing any issues for you or for the person you mentioned complaining about vBIOS in 210 version previously.

So you want to test no NVRAM, to see about menu unlock, and programmer can be borrowed quickly in case of recovery needed? If yes, then I will do tonight for you.
No NVRAM will make you loose all board details (Serial, LAN MAC, Windows activation ect), it's only meant as dirty way to test and see if menu entries are locked in the NVRAM or not.
You will need to flash back to proper BIOS once done testing those BIOS (that applies to either no NVRAM, or edited NVRAM for now too)

Yes, i'm ready to try. In case of failure - i will be able to recover during the day

OK, I will make some test BIOS tonight. I see the/a string in the NVRAM that might be menu's, so if we remove all NVRAM and menus show up then I know where to change. But, it may just be those are enable/disable for other things all in a row
Can you get a NVRAM dump text from any of these versions - https://nofile.io/f/ExjvhvCO1dN/SCEWIN-SCEWINx64.zip
Run the command in text file, from each version # folder

I could not do this in different versions. (I did not see a working version of the amiwinflash for my platform)