Keyboard latency/connectivity issues caused by BIOS update?

Can anybody help with the issue? I would urgently need my laptop working

So I gave up trying to fix it myself and took it into a very experienced IT guy. Basically, this cannot be fixed. The BIOS update contains an Intel Security update (or something like that), so even once you get around the battery issue, it cannot be downgraded or reverted. You also cannot perform a factory reset. So we're stuck waiting for Dell to release a hotfix for this garbage BIOS update.

@filip.jakopovic 

So I finally found a work around for this. While the built in keyboard doesn't interface correctly, external USB keyboards do. This obviously doesn't fix the battery issue, but it at least makes the pc useable.

@filip.jakopovic 

I share my experience with you. My laptop came with version 1.4.0 in bios and when I updated to version 1.12.0 it failed to load the uefi room. That gave me the same keyboard and battery problems. So what I did was download the version (1.12.0) again and copy it to drive D, then I ran the update again and everything ran fine and fixed keyboard and battery errors. Hopefully this can help you.

Anyone else having the same problem as me with not charging and keyboard not working - here is the solution.

Copy the bios file onto a USB formatted as Fat32.  reboot the Laptop pressing the F12 key to get into the One Time Boot Menu. select Flash Bios Upgrade. select the file.  Mine was saying Power inadequate as I only had 6% battery remaining.  there is an Option box. click on it and type in /forceit. Press enter and it gives you the option to flash the file to bios.  Once that completed the laptop was working properly again with keyboard and charging.

Thanks dell for making me waste two days on this when you could have told us this way of re-flashing the bios.

good luck folks

see this

@Godid It says service tag removed?

Dell has put out a fix for this issue yet?  I have not found the solution yet.  I do not want to make changes to my computer manually to fix the issue.  My laptop battery shows 0% charged and not charging. It is useless and keyboard does not work as it should.

Can you me specify the files to be there in USB ??

With new bios update version 1.13.0 its fixed...thank god

Had the same problem installing Bios 1.13.0 for a G3 causing touchpad to stop working and also keyboard lag.

Re-flashed same Bios from FAT32 USB from boot menu bios upgrade and it worked!

Kudos @Carlos247 

Thank you so much for this info. I would not have ben able to finish my school work without it. DELL needs to get their **bleep** together and fix these issue's be for they send out a new bios update. I like my G3 but with all the problems I have had with it I will most likely not be getting a DELL laptop in the future. To this day I can not turn my laptop on and go I have to let it sit for 15 min be for I use it because on startup the Disk usages is maxed out for 15 to 20 min. I have yet to find a solution for this. This state is not adequate for running MATLAB and other engineering programs Orcad, PSpice, HSpice. I'm not happy but thank you again for the solution.

this worked for me man! thankyou for curing my headache caused by dell

I have exactly the same problem. After I installed all updates with the support assistant, my keyboard sporadically stopped working (exactly as you described)
Especially the buttons (a s d) are not. Sometimes, however, it works again for a few minutes, so the buttons (hardware technically) still work. Very strange.
After reinstalling the keyboard drivers several times, I even formatted my PC yesterday. Without success, the problem persists.
I hoped the tip with the fat32 stick works, but it didn't...

It is realy strange, if I type for example "a", sometimes it works, but most of the time i have to press the button 3-5 times. Than the "a" ocures... but sometimes no letter ocours...

According to support, my guarantee has expired and I should look for help in the community.

Thanks! This solution worked