update bios Dell inspiron 15 3521 without battery

[kppus]

Good evening, I have a major problem, I want to do updates on a dell bios laptop and the battery does not work for me, how can I make updates without battery? Told me that I have to charge the battery by 10%.
I tried this https://www.bios-mods.com/forum/Thread-D...9#pid75549    and it not doesn't work,it shows and error writehdrfile or /writeromfile command (invalid winflash parameter).
This is bios file : http://www.dell.com/support/home/us/en/0...erId=60VPH
Tnx in advance.

[DeathBringer]

Don't duplicate topics!

[kppus]

@DeathBriger,plz delete this post https://www.bios-mods.com/forum/Thread-u...ut-battery .
I am sorry that my internet is bad.

[DeathBringer]

Run 3521A12.exe with wrong parameter (e.g. writehdrfile)
Wait for error window, but don't close it.
Go to %temp% folder.
Find folder with name looks like - 7zS62A4.tmp
Copy it to somewhere.
Close error window.
Edit platform.ini: replace BatteryCheck=1 to BatteryCheck=0
Run InsydeFlash.exe

[kppus]

I tried and does not work,error "the ac adapter and battery must be plugins in before the system bios can be flashed"

[DeathBringer]

Try key /forceit for InsydeFlash

[kppus]

Not work,same error..........

[DeathBringer]

Replace
[AC_Adapter]
Flag=1
BatteryCheck=1
to
[AC_Adapter]
Flag=0
BatteryCheck=0

[kppus]

same error...

[DeathBringer]

No more ideas.