GT73VR-7RE BIOS Reflash/recovery

Hi,
Please I made some changes in TB3 controller menu in my unlocked BIOS, and after reboot my laptop won't boot. I see only black screen. I tried maybe all reset procedures which I found on the internet but without success. Can you please help me? If anybody mady reflash by SPI programmer, can you provide to me some guide how to do that? Thanks a lot.

 

30s power button when run
,.,.this not works for you ?

 

No, I tried this I tried, reset with reset button, I tried method with AMIBOOT.rom without success.

 

reset button - EC
.,,.and when not works 30s power button
is nb fully dead ???
you hear the fan ???

 

I tried that, but it not works. Laptop power on I hear fans, after 20seconds cca I hear spin up disk but with black screen. No video no boot up, only keyboard backlight button works and GPU button is lighting.

 

try this button after boot + enter "blind gpu switch" or external monitor
,.,.this look like dead d-gpu only or screen

edit
this not works ,.,.**** ,.,..,blind must target position for OK
from edge --it's in the middle in screen



my SCM -for gpu switch all time have same position
but respond only to the mouse :/

or external monitor "this eliminate internal panel"

 

and flash .,,.when not have backup ,.,you notebook lost SN + some others function /or next boot-loop
impossible flash bios rom from BIOS package --hwprogramer

need custom backup

 

or RAM .,,.but OEM is under MOBO :/
.,.when use RESET --see some restarts on power button ??

your must determine .,,.notebook lost only GPU // or screen and works normally or STUCK on bad bios
,..,but bad bios --dead notebook fully

 

I try blind GPU switch, and external monitor, but eGPU is OK. Notebook worked properly, I rebooted it into BIOS, made some changes in TB3 controller menu (I activated GPIO filter, and I think some parameters for reserved memory for controller, etc) rebooted again, but after reboot I can hear only fans and nothing else. I had similar problem before a year ago, when I wrongly changed BCLK freq, I sent it into MSI and they reflashed BIOS only. I think that problem is BIOS cannot (from some reason) load factory defaults and boot. So I have programmer, I have BIOS files (original and modded) but first I want to try It recover via standart methods. I know, that BIOS should be under MXM GPU, but I want guide step-by-step how to process recovery. I have FAT32 formatted flash. I have 5 USB 3.0 ports, so I need to know which I need to use. Which is correct filename somewhere is AMIBOOT.ROM somewhere is original filename (E17A1IMS.325) somewhere E17A1IMS.rom. And what I need to do.

 

all this problems -- power button reset

try more 45s or 50s ,..,you see progress for reset or not ? 5x reboot on startup ??

 

So when laptop is powered of I must press power button for 45+seconds or when it is powered on?
I try that, and I let you know.

 

must run !

 

So I tried your process but without succes. Laptop powers on after cca 1 minute powers down, twice power on/off in cca 2 seconds, after powers on, but blank screen no boot, no beeps, only fans are running. I also tried switch eGPU to iGPU but button is without reaction only lighting, also I tried external panels HDMI and mDP and both without signal.

 

GPU or RAM --black screen :/
process "reset" look OK --NB works "bios"

.,,.hard way ,.,.,you must remove d-gpu -- IGPU NATIVE
or last test - ram "but oem is under MOBO"

edit
or service ! still d-gpu look bad
exist one similar problem "when set bad PCI-e in admin bios,.,.is lost gpu "similar symptoms" --forever "reset not helps"


,,i must try find how is positible this change back ,..,from i-gpu "when is problem only D-gpu --PCIE is LOST"

but I don't remember it anymore :/
SERVICE ,..,or mus try remove D-gpu -.-after assembly try RESET
must get full i-gpu mode for test .,.,.,others is possible RAM // or MOBO fully ./

///
just if you can do i-gpu and see the BIOS .,.,it is possible to try to set PCI-E detection back
translation is OK ??

 

So I try to remove RAMs and dGPU and let you know. Before reboot was dGPU OK and worked properly.

 

this look similar "like PCIE detection problem" ,..it has happened to a lot of users
now is active d-gpu ? indicator is RED ?

but PCIE detection -- LOST "gpu not exist"
or RAM --but this last step --fully disassembly

you have to get the screen somehow ,,.,.try set all back for working PCI-E slot

I think @Falkentyne he might still know -he had gt73
try PM ?

///
The flash option must be from a backup ,, your backup
i have guide ,,.but think this no need ? :/

 

Yes, GPU indicator is RED lignting as active dGPU mode.
I wanted to PM to @Falkentyne but I can't because (maybe) I haven't rights to do that. I found thread http://forum.notebookreview.com/threads/gt83-bios-bricked.811924/ but I also can't to write there because it says (You have insufficient privileges to reply here.) I have my BIOS dump so It shouldn't be but SPI flast is my last option.

 

I tried to write to someone what he should know.,., but I don't know if he will answer .D he is very busy
will see
edit
we have to wait ,, .. I sent a question

 

Thanks a lot. I'll be patient, before I start disassmbling eGPU and RAMs

 

If nothing else works remove the MXM GPU card and boot up this will then force the iGPU to take over, shutdown the system and then place your mxm GPU back in.

Bare in mind if you do this method it will do 3 reboots before displaying a screen after you removed the dGPU's mxm card.

Sent from my SNE-LX1 using Tapatalk

 

If the video card slot gets disabled after you muck around in the BIOS, changing options you should not change, you can try to force PEG port 1 or 0 I don't remember which, the first one, to enabled.

First, do the 60 second power button press / hold. Bios will always reset after about 2 minutes of waiting. If this does not reset, I can't help.
Then after its reset, press left alt, right control, right shift, F2, to enable hidden menus.

Go to System Agent configuration (I don't remember the exact stuff, it's been years since i dealt with this stuff, since this laptop is no longer faster than my desktop, it's not a daily game system anymore), go to PEG Port 0 or Root port 0, change this from Auto to Enabled. Whatever the top/first entry is. Save and Exit.
this will prevent the graphics card from not getting initialized when changing certain options or when switching from dgpu to iGPU and back.

One thing I remember which has a 100% of triggering the black screen problem, is if you unlock menus, then set spread spectrum to 0% (this causes BCLK to be 100.0 mhz rather than 99.750 or 98, I forgot), then save, reboot, change to iGPU, save, reboot, then back to dGPU. This always black screens. Peg Port 0 on "Enabled" instead of "Auto" prevents this black screen 100% of the time. Seems to be a problem with how "Auto" works, and even if PEG 0 is set to enabled, the iGPU will still work when you enable the iGPU (because the embedded controller actually electrically disconnects the Nvidia card by force, so there is no reason why Peg 0 should be Auto instead of Enabled. Dunno what MSI was thinking here).

 

Thanks, I'll try that and let you know.

 

long press -"still power button RESET" --120S
or "CMOS reset" but "CMOS battery" is under mobo ,.,.i try find info

edit,..,its under like my gt75 :/
,it is better to try disconnecting the GPU first // battery
,.,.after DEBUG assembly try --power ON "without D-gpu"


RAM ,.,,and CMOS battery is --full disassembly when not works "power button"
,..,,. last STEP or SERVICE WORK

and as I wrote,. ,,. this problem should only be fixed via the power button
,.,or it will take you to the BIOS screen for further repair

but if it doesn't work we cannot exclude HW DEFECT

edit

 

I know, where is CMOS battery, but I thought that there is Reset button next to battery on the right side to avoid removing CMOS batt from board. But complete disassembly is not so huge problem against send laptop to service center

 

but considering the possibilities/problem

one BUTTON - EC RESET
and on GT73 --exist next one around GPU fan ??
this maybe is CMOS """but I dont know"

but I don't know where I saw it anymore
EC reset -- located near audio with JACK ports

edit ,.,..,

 

D'oh I thought that button near audio jacks reset CMOS.

 

https://www.xoticpcforums.com/forum...resetting-your-laptops-ec-embedded-controller
EC reset

any your must read indicators ! must flash at boot -WIFI on/off
try 1x 30s or 2x 30s

guide up --correct EC reset

 

So I removed dGPU card, made long press power button 120s and laptopn still spins up fans, power button and egpu button is red lighting, bud display is not backlighted (is completely off). Laptop is in this state cca 2 mins and after that it shuts down. Photo icluded

 

without d-gpu.,., there is still a signal that it is active
all power button reset is on running machine ?

bios flash ,.,.or it's HWDEFECT
////////
I'll try to find out something else

 

Yes, if I removed dGPU and power on NTB, dGPU button (under power button) is still lighting. Laptop before changes in BIOS worked normally also under high stress (gaming, rendering etc...) no unstability or something. Also I made memtest on all four DIMM modules in different NTB and all DIMMs are OK (only for sure) I contacted SVET if he can provide to me SPI flashable file, because he has unlocked BIOS for me or if he knows any other options. He has responded to me, that he has SPI flashable file for me (thanks god), so now I'm waiting for response from him. I think that BIOS is stucked at chipset initialization and reset does not works because of any design failure or secondary BIOS chip(if it is present) failure or something like that. I know processes how BIOS initialize onboard devices etc.. but I can't explain how is possible why reset doesn't works. I also wrote an email to AMI if they're know and can explain that.

 

I'm most worried about PCI-E detection ,.,.,.reset works
but any from "TB memory" or EC --still native PCI_e "but blocked"

try flash. ,,. and will see
,.,.unfortunately I do not know

 

Please do you have any experience with flashing BIOS via SPI? I cannot find where is connected CS (ChipSelect) pin on memory to programmer. Thanks

 

No, sorry.
I used a skypro the one time I backed up the bios file. Just made sure pin 1 on the Pomona 5250 clip was hooked to pin 1 on the chip and wired correctly to the flasher. All I can tell you is pin 1 is next to the small indent mark on the bios chip. And make sure you're reading the correct chip too as there may be more than one SOP8 chip. I don't remember the file size anymore if its 8 mbit or 16 mbit. I forgot. On the GT73VR, the bios chip is under the MXM video card (the card has to be removed). Sorry I can't assist much more with this. And I can't give you techsupport with whatever flash tool you are using. I used a Coright Skypro.

 

Never mind Thank you. I ordered the same programmer and also I located BIOS chip on board

 

Please how did you programmed that BIOS chip via SkyPro? I have BIOS chip GD25B64C and my SkyPRO programmer is unable to recognize it. Can you help me? Thanks.

 

https://www.win-raid.com/
best forum for any flashing and help
or must wait

 

So finally, I flashed my BIOS chip with SkyPRO (option GD25Q128C I think), so laptop is alive again, and also I made some mods in BIOS, so thanks to all you guys for your tips