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(SOLVED) P775TM1-G Black screen on boot after enabling SecureBoot. Cant reach bios and tried reflashing.


JosephK

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EDIT/Solved: This issue was now solved thanks to the suggestions by Harkaz for button inputs to reset bios settings blindly. Though it didnt work the first time, after several attempts, it finally worked. 

----------------------- Original post -----------------

Well this is my first post here so hi everyone and hope I'm posting in right place.
I was wondering if anyone could help or give info on similar experiences or what I might be doing wrong with trying to reflash bios.

On my Obsidian P775TM1-G I recently enabled SecureBoot in the bios in order to play a game which required it. But now the built in display stays off and there is no output through HDMI or Display port, not even to show logo. The RGB on the keyboard will turn on, fans will come on slightly, then after about 5-10 seconds fans spin up a bit louder for a second or 2 and keyboard lights turn a light blue. The fans then spin down to a normal idle speed and nothing else happens, the laptop just stays on with a black screen. Some rare times it will restart itself and do same thing but its inconsistent.

Ive tried removing the CMOS battery, even had it unplugged for a full night and had held the power button down for a full minute before putting the charger back in and turning the laptop on but didnt help. Even tried with the cmos battery removed but acted same way.
Ive tried removing all my hard drives except main hard drive but wasnt any help. Also tried removing all drives and plugging in a usb with a bootable ubuntu installation to load from but still nothing. Ive also tried removing all but 1 RAM and even swapping which ram i used for that and trying other slots but no help either 😞 .

On other laptops i seen people faced similar issues and only 3 ways to fix the issue was either cmos reset which didnt work for me OR for those with integrated graphics, plugging HDMI into motherboard instead of GPU worked (but thats no use for me being on a laptop with only dedicated GPU). or last option which I'm on now is to reflash the bios.

Ive been trying to place the bios files on a usb drive formatted to FAT32 from another PC, then plugging this in on the laptop, and holding FN + B on boot which i found some posts mentioning would flash the bios on clevo machines but this has just not worked at all. ( Layout of USB attached below)
image.thumb.png.08b8119a9dfe0a68b77a1be1d35f08e3.png

Im gue
ssing my only option now is to try flash with a programmer ? Ive just ordered one on Amazon but was looking if there are any other solutions or if this would even help at this point 😕

Edited by JosephK
Issue resolved and adding details to main post.
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The GPU firmware (its UEFI component) must be whitelisted in Secure Boot if the Microsoft UEFI CA 2011 has been removed/blacklisted from secure boot database.

 

You may be able to revert to BIOS defaults without monitor:

Try hitting the F2 repeatedly at startup (this will launch BIOS setup with a black screen). If you have specified a password to access BIOS, type it and press ENTER. Press F3 and press either right or left arrow once (should select 'yes' in a pop-up about loading optimized BIOS defaults). Press ENTER. Press F4 and press ENTER.

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11 hours ago, Kastner said:

Hi,

You could try FN+D while power on, I think is default settings. I know you already do the battery removing but it worth a try.

Give it some time to work maybe a few restart.

Thanks for the advice :). I did try this a few times both spamming it and holding it and unfortunately didn't work :(. Forgot to include this in my post.

 

 

3 hours ago, harkaz said:

The GPU firmware (its UEFI component) must be whitelisted in Secure Boot if the Microsoft UEFI CA 2011 has been removed/blacklisted from secure boot database.

 

You may be able to revert to BIOS defaults without monitor:

Try hitting the F2 repeatedly at startup (this will launch BIOS setup with a black screen). If you have specified a password to access BIOS, type it and press ENTER. Press F3 and press either right or left arrow once (should select 'yes' in a pop-up about loading optimized BIOS defaults). Press ENTER. Press F4 and press ENTER.

That makes sense why it would cause this issue then and everything I've seen about the issue.
I really appreciate your advice and good suggestion.
I tried what you recommended but after multiple attempts it hasn't worked :(. Im not sure if I'm making it into the bios or not 😕 Though out of multiple attempts, in 2 of my attempts i noticed when i hit Enter after F4, the fans spun up a little and i could see the icon below power button for accessing storage flicker, so that seemed to have done something but i still have the issue acting exact same as before :(.
And the keys you suggested match what is written in manual so I know what you said is right too.

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8 hours ago, harkaz said:

The GPU firmware (its UEFI component) must be whitelisted in Secure Boot if the Microsoft UEFI CA 2011 has been removed/blacklisted from secure boot database.

 

You may be able to revert to BIOS defaults without monitor:

Try hitting the F2 repeatedly at startup (this will launch BIOS setup with a black screen). If you have specified a password to access BIOS, type it and press ENTER. Press F3 and press either right or left arrow once (should select 'yes' in a pop-up about loading optimized BIOS defaults). Press ENTER. Press F4 and press ENTER.

Update on this but i tried again and this time it worked :D. I was able to see my screen. After hitting F2 to enter bios, i repeated the F3 > Press left > Enter, several times just to make sure it went through and then hit F4 and Enter, then it immediately showed my screen and booted into windows :D. Im not exactly sure why it took multiple attempts to get it to reset properly but alls good that ends well :D.

Thank you so so much 😄 After spending the full weekend trying to resolve this, I'm really glad I was able to resolve the issue thanks to your help 🙂 

On  a side note, from a suggestion elsewhere, i was able to safely enable Safeboot this time by simply setting it to "custom" and then back to "Enabled", which gave me a prompt to reset keys to default, and this worked.

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  • JosephK changed the title to (SOLVED) P775TM1-G Black screen on boot after enabling SecureBoot. Cant reach bios and tried reflashing.

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