tried to reflash the bios to remove the user power on password , it is amd so i believe i just have to flash the main bios right away using the bin rom file from hp website ?? i tried that and all went good through my programmer and verified , then i went to solder the bios chip back to the motherboard when press power button laptop is dead . dpesn't turn pn at all . no lights except the power led light in the front when you get when you plug the charger . there's voltage on all bios pins except no voltage on pin 1 and 8 ??? what am i missing , please advice
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Re: help hp probook 6565b
bad bios flash bin. get Another bin one or reflash backup to verify. -
Re: help hp probook 6565b
i measured voltage on the board without soldering the chip and same resultComment
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Re: help hp probook 6565b
you mean get another bios chip ?Comment
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Re: help hp probook 6565b
does amd bios file need to be modified or it can be flashed right away . downloaded it from HP website . anyone can advice , thx in advanceComment
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Re: help hp probook 6565b
tested it again there's 3.3V on pins 1,3,7,8Comment
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Re: help hp probook 6565b
have you made backup of the original Bios?
what is the model of the Bios chip?
How much is the size of the new Bios file which you programmed on the chip?Last edited by caspian; 01-28-2018, 03:22 PM.Comment
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Re: help hp probook 6565b
no backup , 8Mbit bios chip , file was 2MbyteComment
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Re: help hp probook 6565b
it is winbond chip , it was detected fine by the programmer and all went good and verified , does amd probook needs dump file or it can be flashed right away using the official bin file ?? as far as i know you can flash amd bios right away ? can someone confirm or correct me ?Comment
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Re: help hp probook 6565b
I suggest you find a dump file on badcaps.net and write it on the Bios chip.Comment
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Re: help hp probook 6565b
i understand that but as far as i know with amd you can take the whole file and flash it .. can someone confirm ?Comment
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Re: help hp probook 6565b
anyone have the bios dump for probook 6565b ?Comment
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Re: help hp probook 6565b
This is HP official bios. If it doesnt work then not a bios issue. You can try another bios chip of 2mb size.Might be graphics issue as this series is known to have ati graphics failure.Comment
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Re: help hp probook 6565b
i need the dump file to use it with my programmer not the official one . i already tried the official one it doesn't work .. not a graphic issue . it has AMD A6 processor which it is APU ( cpu + gpu ) combined together into the processor , the laptop will not turn on at all no power the only light on it is the charger light , no respond to power button and this happened after i flashed the bios . thank youComment
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Re: help hp probook 6565b
I need code main boardComment
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Re: help hp probook 6565b
code main board ?Comment
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Re: help hp probook 6565b
check your motherboard there is a board code thereComment
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Re: help hp probook 6565b
anyone can provide me with the dump file , once again please don't send me the bios update file it will not work , i need the bios dump file to flash it with the programmerComment
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Re: help hp probook 6565b
You are talking funny. The hp official is a full bios. What difference will you get with a dump?? If hp offical bios(which is full) doesnt work-its not a bios issue. Whichever dump you may try, it wont work. You are simply wasting time with flashing. Look for schematic and troubleshoot the signals rather.Comment
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Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM -
Hello everyone,
I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.
When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.
I decided to try flashing a new BIOS, but since I didn’t want to desolder... -
First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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Find by serial number,model number or series
If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
Operating system and OS version.If... -
I'm requesting a bios .bin for 2 of my hp Probook 450 G3's. Both of which I had forgotten the bios passwords. I stupidly flashed both of them with firmware "made" by the RCUnlocker software and I guess I shouldn't have. The last thing I did was flash both of them with RCUnlocker-fw thinking it would 100% work and left my programmer etc behind and won't have access to them for another 2 days so I figured I'd create a thread to see if I'd be so lucky that someone might have a working file laying around 😝
Laptop number 1:
Model: HP ProBook 450 G3
Motherboard part number:... -
Hi, my laptop wont boot at all
With original bios no POST, only LED lights
With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
Some issues
A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
B- If updated from 500LN version 203 to 300, the battery stops being recognized
Things I tried
1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble...
Comment