Need bios hp probook 430 G4

**hoaca388** · 02-24-2022, 08:32 AM

Re: Need bios hp probook 430 G4

Originally posted by Umadbro

Hi, thank you for your support.

Same result, CAPS&NUM lock blinking 5 times, followed by fast fan spin.

You should find the hardware cause.

**Umadbro** · 02-24-2022, 10:12 AM

Re: Need bios hp probook 430 G4

Originally posted by hoaca388

You should find the hardware cause.

So you don't think my issue is Bios related? I went this was as the machine code indicates it.

**Umadbro** · 03-10-2022, 09:05 AM

Re: Need bios hp probook 430 G4

Hey. A quick update.

I found a couple of places where the solder was eaten away but the pads and legs were intact, so I replaced the solder, used my "fixed" file, and tried to boot it.
I got the same keyboard blinking code, but this time, after it played out, the machine posted.

The backlight isn't working, but I can see the HP logo using a flashlight. I don't have a compatible screen to test it out and can't seem to find a schematic/boardview compatible.

I also found that the USB3 controller has a hole. I removed it and the machine still posts.

I will be looking for a schematic or boardview to try and solve the backlight.

Even though my first guess wasn't right, I at least managed to clean my own ME region and it seems to work, so it wasn't a waste of time. Thank you to the ones that tried to help.

I will post any news on the repair of this machine.

**hoaca388** · 03-10-2022, 09:39 AM

Re: Need bios hp probook 430 G4

Originally posted by Umadbro

Hey. A quick update.

I found a couple of places where the solder was eaten away but the pads and legs were intact, so I replaced the solder, used my "fixed" file, and tried to boot it.
I got the same keyboard blinking code, but this time, after it played out, the machine posted.

The backlight isn't working, but I can see the HP logo using a flashlight. I don't have a compatible screen to test it out and can't seem to find a schematic/boardview compatible.

I also found that the USB3 controller has a hole. I removed it and the machine still posts.

I will be looking for a schematic or boardview to try and solve the backlight.

Even though my first guess wasn't right, I at least managed to clean my own ME region and it seems to work, so it wasn't a waste of time. Thank you to the ones that tried to help.

I will post any news on the repair of this machine.

Looks like you're almost there.

**Umadbro** · 03-10-2022, 10:44 AM

Re: Need bios hp probook 430 G4

Originally posted by hoaca388

Looks like you're almost there.

Hi. Thank you so much for your support. It was nice to know that my bios fix was properly done, this will be very useful for future projects. It boots with Manufacturer mode ON, but I know how to solve this.

I have fixed the issue with the display. it ended up being the 0ohm resistor (R7725) in the +VIN_BLIGHT_L line.

The ic that was found with a hole (CYPD4125-40LQXIT) is actually the USBC controller (not USB3). I managed to find it for delivery, but not nearby and I couldn't find a compatible ic reference so I'll go with what I found. I am still going to measure the lines on this ic socket to prevent the same issue burns the second ic.

Once again thank you for leading me in the right direction.

**JokeBK** · 09-01-2022, 04:40 AM

Re: Need bios hp probook 430 G4

Thank you, guys, for your helpful and useful messages, advices.

**harshana** · 09-15-2022, 05:35 AM

HP 430 G4 bios issue help

I have HP G430 G4 laptop and there were bios issue. Someone has flashed wrong bin and came to me. however I was able to turn on the laptop using a bios file from this forum. but the issue is that bios file has old laptop information. I need to update them with mine.

can you please help me to do that.

Manufacturing Program mode is in lock stage.

I guess I can edit if I can make it unlock

**peste** · 09-15-2022, 05:38 AM

Re: HP 430 G4 bios issue help

Originally posted by harshana

I have HP G430 G4 laptop and there were bios issue. Someone has flashed wrong bin and came to me. however I was able to turn on the laptop using a bios file from this forum. but the issue is that bios file has old laptop information. I need to update them with mine.

can you please help me to do that.

Manufacturing Program mode is in lock stage.

I guess I can edit if I can make it unlock

post the original bios of the laptop and the bios with which the laptop works now..

**harshana** · 09-15-2022, 06:19 AM

Re: HP 430 G4 bios issue help

When I got this laptop bios had already flashed but was in MPM unlock stage. So I updated product data on that file. I attach it as old.bin

and the other file is currently working file which generated from ME tools.

Attached Files

bios-backup.zip (14.96 MB, 22 views)

**harshana** · 09-15-2022, 03:13 PM

Re: HP 430 G4 bios issue help

I used hex editor to edit the bin file.

And then flashed the file using Ch431a programmer.

It worked like a charm

**poweron** · 11-12-2022, 07:04 PM

hp probook 430 g4 bios bin

hi, this hp when I turn on, the led on turns on for a second then turns off, turns on again and emits 5 flashes the caps-lok and blok num led and the fan runs at max

**poweron** · 11-12-2022, 07:07 PM

Re: hp probook 430 g4 bios bin

this is the dump

Attached Files

dump hp 430 g4.rar (6.95 MB, 31 views)

**qayyum786** · 11-12-2022, 10:25 PM

Re: hp probook 430 g4 bios bin

Originally posted by poweron

this is the dump

here

Attached Files

dump hp 430 g4_FIXED.rar (6.89 MB, 53 views)

**poweron** · 11-13-2022, 08:42 AM

Re: hp probook 430 g4 bios bin

I tried the bios fixed but the yellow led of the dc power connector flashes continuously and the notebook does not turn on, when I disconnect the dc connector the power on led on the button flashes for one second

**hardware1** · 11-13-2022, 08:56 AM

Re: hp probook 430 g4 bios bin

Originally posted by poweron

this is the dump

Your file has been fixed using latest version from HP, hope it works fine.

Attached Files

HP ProBook 430 G4.rar (5.52 MB, 36 views)

**poweron** · 11-13-2022, 09:33 AM

Re: hp probook 430 g4 bios bin

unfortunately this doesn't work either, it behaves as I described in post n.1

the main is DA0X81MB6E0 REV E

**qayyum786** · 11-13-2022, 12:34 PM

Re: hp probook 430 g4 bios bin

Originally posted by poweron

unfortunately this doesn't work either, it behaves as i described in post n.1

the main is da0x81mb6e0 rev e

here we build a new bios on factroy mode try this too

Attached Files

HP ProBook 430 G4 _DA0X81MB6E0_4MATIC.rar (5.36 MB, 46 views)

**hardware1** · 11-13-2022, 12:54 PM

Re: hp probook 430 g4 bios bin

Originally posted by qayyum786

here we build a new bios on factroy mode try this too

I'm a little confused, why his original file is (P85) and your file is (P91)?

Attached Files

**poweron** · 11-13-2022, 04:01 PM

Re: Need bios hp probook 430 G4

even with this it does not work, I doubt that it is a main board fault

**qayyum786** · 11-13-2022, 04:02 PM

Re: hp probook 430 g4 bios bin

Originally posted by hardware1

I'm a little confused, why his original file is (P85) and your file is (P91)?

i was confuse also when i check Original dump and try to find it in HP Support even in older version but P85 was not available accept P91

than i start to read given information by HP and they said P91 supported as well so i build with that
.........lets see

NOTE :- IMAGE ATTACHED

Attached Files

Need bios hp probook 430 G4

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