Updated BIOS driver--now it will not boot

jaguarman · Oct 26, 2014

I updated BIOS driver-now the ASUS Q550LF will not boot. When starting up, the ASUS logo comes up and I can enter BIOS. When letting it boot normally, the top left corner shows a little white bar which flashes twice. Then it goes to a black screen, still powered on, and does nothing.

Guest · Oct 26, 2014

try load defaults in bios or flash back to old one if you saved it

jaguarman · Oct 26, 2014

Could you explain how to do that please?
Thank you.

Guest · Oct 26, 2014

press f5 when you in your bios , or look in the menus

jaguarman · Oct 26, 2014

When press F5, nothing happens. What do I look for if i go to the menus? Tried restore defaults and it does not work.

jaguarman · Oct 26, 2014

Paul NZ · Oct 26, 2014

Reconfigure the BIOS settings / its probably not on the right bootdisk. If its not booting. Make sure the hdd is the bootdisk, disable the logo in the BIOS.

Read the manual

jaguarman · Oct 26, 2014

Paul NZ :

Hi Paul- do not have manual with me. Boot configuration is fine. Hard drive IS selected as the bootdisc. Does disabling the logo in the BIOS help the situation?

Paul NZ · Oct 26, 2014

Disabling the logo it may not take forever to boot into windows. And you can see whats happening

The manual is here http://dlcdnet.asus.com/pub/ASUS/nb/N550JV/E_eManual_N550JA_JV_LF_VER7914.pdf

The same place you downloaded the BIOS from (or should have)

Boot into safe mode see if it works. If it does then something has stuffed up somewhere

jaguarman · Oct 26, 2014

Paul NZ :

Going into safe mode, gets stuck at LOADED: CLASSPNP.sys and says please wait at the bottom

Paul NZ · Oct 26, 2014

Check the BIOS and see if its on AHCI. If it isnt change it

And make sure its on windows boot manager if it supports UEFI

jaguarman · Oct 26, 2014

Paul NZ :

1st thing its on AHCI
All i got is AHCI

2nd thing u said i don't understand?

Paul NZ · Oct 26, 2014

Read the manual . The options in the bios may have been set to defaults or changed. Since you updated the BIOS. See what the options are meant to be on.

jaguarman · Oct 26, 2014

Paul NZ :

Where in the manual?

Paul NZ · Oct 26, 2014

Probably at the back. Where the BIOS info is

asusgal · Oct 26, 2014

Hey Jaguar im replying to your post because i was just doing a google search and came across another post by you about getting your asus q500lf screen replaced.

Luckily i see you've been active here within the last couple of days and im just curious how getting ur screen fixed went for you as my asus screen of the same model is cracked. I've contacted Asus and been quoted the $100 range for a repair, but i see after you sent it in they tried to charge you much more which is what im afraid of!

I dont have the money for that so i am very stressed out. Any insight would be appreciated. Also wondering if you could relay the model # of the touch screen so i can look i to replacements without having to take it apart now as it still works but as i said needs to be repaired as the touchscreen feature does not.

Sorry to intrude on your thread with an off topic subject but would really appreciate details in regards to how things worked out for you?

jaguarman · Oct 26, 2014

asusgal :

ASUS wanted to charge close to $400 regardless of the chat which stated $127 "or close to that". DO not mess with ASUS. Had them send it back un-repaired. Found nothing online as to how to replace the screen for this model. Found one place online that happened to have a full screen assembly with hinges for about $90. It was listed for the ASUS N440JV laptop. Once finally received laptop back from ASUS, I figured out how to replace the screen assembly based on how the old one that was "hanging" on. Once I installed the new screen assembly, I removed the BEZEL (clear hard plastic cover over the screen--not easy to remove the bezel from the screen--have to wedge it out) FROM THE OLD cracked screen--and the actual screen was fine. It was only the bezel that was cracked. I will probably sell the screen itself. Suggestion would be--look for the screen assembly online (may not be available). Look for the full screen assembly for the Q550LF OR the N440JV (which is compatible). I'd suggest a DIY repair if you find a screen assembly. Just be sure to also purchase the torques T5 tiny screw driver for the bottom lid. Rest takes a small Phillips head once inside.

jaguarman · Oct 26, 2014

Paul NZ :

I tried loading in the latest BIOS driver update from ASUS and it keeps telling me the update is too old. That may be because I already updated the BIOS early today, which is when the original problem started and it would not boot. So it is seeing that an update was done (this morning) and anything else is considered too old.
Tried to downgrade using C:\Program Files (x86)\ASUS\WinFlash, and that also did not work. Nothing seems to work and it is stuck in a BIOS upgrade that will not allow me to boot up.

Paul NZ · Oct 26, 2014

Could have used easy flash which is an option in the BIOS. According to the manual. Its safer than flashing it in windows

jaguarman · Oct 26, 2014

Paul NZ :

I went into Easy flash armed with a FAT32 flash drive plugged in with the latest driver, did not solve the no-boot issue. Don't forget just about all I can even access is BIOS as my laptop won't boot up.
here's the basic issue i believe is causing this entire problem:

Flashed new BIOS driver
Messed up my system from booting for whatever reasons...
Now, I'd like to add an older BIOS driver that works for me to get my system up and running again
Easy Flash tells me the (older) driver is too old

Know a way to get Easy Flash to flash to an older BIOS driver?

Paul NZ · Oct 26, 2014

So what BIOS did you flash?? 214?? This is the latest

jaguarman · Oct 26, 2014

I'm pretty sure 215 is the one currently flashed. the "latest" driver it lists on asus website didn't work, Quick Flash or whatever its called told me that the model didn't match.....if you download that latest driver it'll say N550LF when my computer is a Q550LF

Paul NZ · Oct 26, 2014

Where did 215 come from? Its not even on the ASUS site

http://www.asus.com/supportonly/Q550LF/HelpDesk_Download/

Thats probably why it doesnt match / work. 215 isnt for your laptop

jaguarman · Oct 26, 2014

Paul NZ :

yes it is.
go to the link you provided. Select OS>Windows 8>BIOS>Driver before latest: version 215

Paul NZ · Oct 26, 2014

Hmm I think theyre 2 different BIOS updates, thats why

Ones for the video the 214 the other for the pc 215

Updated BIOS driver--now it will not boot

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