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Filo1
05-01-2014, 07:46 PM
Hi
Im new owner of G750JX,
idk why i enable secure boot and something else
now after reboot im not able to do anything, black screen
what to do :S
probably i enabled Key Manager and Secure Boot Control

jmhdj
05-01-2014, 09:18 PM
What do you mean by not able to do anything. Does laptop power on and dont post? Or it wont start up at all?

Filo1
05-01-2014, 09:25 PM
Laptop power up
i think it waiting for something
trying to read dvd and hdd
screen is black
when hitting enter hdd led flash (but only 2 times) when reboot it again flash when pressing enter
i think i nid to provide any secure boot key or idk
i tried to restore bios but changing extension to .bin and putting it on fat16 pendrive
it dont work, screen all time is black

jmhdj
05-01-2014, 10:00 PM
That wont work as laptop obviously does not post. I have repaired same problem on same model by desoldering bios chip and manualy programing last 2.5mb in that way serial number and other things like windows license key are kept intact. Dont know if there is way to recover in some other way though.

Filo1
05-01-2014, 10:03 PM
but i think it POST
when i turn it on
its possible to turn num lock on etc
it trying to read dvd
when pressing enter hdd led blink
is there an default secure boot key?
i just enable secure boot and this key thingy then rebooted
when pressing ctrl + home at start, reaction of laptop is "other" idk how to call it
backlight turning on later etc
when i once press power button it shutting down after while by it self
no needed to hold power button

jmhdj
05-01-2014, 10:08 PM
Did you tried and connect it to external screen via vga cable?

Filo1
05-01-2014, 10:12 PM
still nothing :S

jmhdj
05-01-2014, 10:15 PM
Then you are in some semi brick limbo. Sorry but I dont have any other ideas. But it hears as you have same problem as the one I fixed when I bought my g750jx and seller couldnt tell what happened he said it just died after restart.

jmhdj
05-01-2014, 10:17 PM
Anyway you are covered by guaranty its just pain in rear to have send and wait for it to be repaired :(

Filo1
05-01-2014, 10:18 PM
Thank u anyway :P
maybe ill try send it to repair
but unfortunelly in 2 days im going abroad for month and i wanted my asus to take with me ..

jmhdj
05-01-2014, 10:23 PM
Next time dont play With secure boot as you see it secured laptop completely even from you :).
Joke aside i hope you manage to fix it without need to send it away.

hmscott
05-01-2014, 11:59 PM
Thank u anyway :P
maybe ill try send it to repair
but unfortunelly in 2 days im going abroad for month and i wanted my asus to take with me ..

Does hitting ESC repeatedly at power on get the boot options?

That would open up recovery possibilities.

Filo1
05-02-2014, 07:45 AM
Still nothing :s
idk if its important but
i connected usb keyboard, and its same situation when hitting enter hdd led flash
so if keyboard work then bios is ok also? how to recover it :s

Filo1
05-02-2014, 08:56 AM
NAHAHAHHA
Guys i have repaired this:
if someone experencing this problem:
keep clicking f2 at power on
press f9 then left arrow then press enter
press f10 press enter
should reboot and work
it seems only graphic driver dont work if i enable this option
it was possible to enter bios!
Thank You
@jmhdj and @hmscott

hmscott
05-02-2014, 09:43 AM
NAHAHAHHA
Guys i have repaired this:
if someone experencing this problem:
keep clicking f2 at power on
press f9 then left arrow then press enter
press f10 press enter
should reboot and work
it seems only graphic driver dont work if i enable this option
it was possible to enter bios!
Thank You
@jmhdj and @hmscott

Good work Filo1! It's a great relief to fix a brick :)

kramgear
05-04-2014, 08:11 AM
Asus laptops are having some bad time in UEFI firmware. Once u disable the security boot mode and u try to re-enable it. It will not boot up windows again and sometimes returning you in the bios program. This is what i experienced also with my g750 because there are no response from thier support after 48hrs.

kb0sdq
02-24-2018, 07:26 PM
Good work Filo1! It's a great relief to fix a brick :)

Howdy Hmscott
Man last week I shut down my g750jh next morning it would not boot power bat scroll lite and hdd for a second then just the power and scroll lite stays on cd/dvd clunks as it is mounting then nothing screen is black can not access the bios recovery stick does not work nothing works. plug in another monitor pulled battery help power button for a minute nothing works
Chatted with a asus tech online they said around $850 plus for repair not gonna spend that much on a four year old machine checked ebay about 260 for a new motherboard if that is what crapped out. any suggestions?

Doug
Happy ROG_n