HP Probook 450 G1

[Stevedb]

Hi

I have a strange fault with this HP probook 450 G1.
When I plug in the power starts the laptop himseslf , spins the fan fast, no screen and flash the caps lock + numlock 7 times white. , all the power supply's are there.

I have no schedule.

Can somebody help me what can be the problem?

best regards

Steve

[ktmmotocross]

Re: HP Probook 450 G1

i dont see 7 blinks in hp manual. after 6 blinksisonly continuous blinks

[Stevedb]

Re: HP Probook 450 G1

Hi sorry i was wrong it is 5 times blinking.

[mcplslg123]

Re: HP Probook 450 G1

Check cmos battery.Flash bios.

[Stevedb]

Re: HP Probook 450 G1

I replaced the cmos battery is the same

[Stevedb]

Re: HP Probook 450 G1

Anyone has more ideas

Regards

Steve

[peste]

Re: HP Probook 450 G1

have you tried a clean bios? ..

[Stevedb]

Re: HP Probook 450 G1

No not yet i ordered a bios programmer. What number do i need for asking a dump. I have never flash a bios. I order ch341A programmer

Best regards

[Stevedb]

Re: HP Probook 450 G1

Hi what numer do i need to ask a. Biosdump and flash the bios.

What also strange is when i will power up the laptop with mu power supply or another hp charger or my toshiba charger with adapter piece the charger light blinks then.

Is the problem then the bios?

Best regards

Steve

[ktmmotocross]

Re: HP Probook 450 G1

5 blinks is general system board failure

board is checking charger with middle pin if it is original charger and if it have enough wats. if not it wont let u charge or power on

[Stevedb]

Re: HP Probook 450 G1

Thanks for the reply ktmmotocross.

so when you do not have a original charger you can never test the board then?

How can I fix this laptop then?

Flash bios?

[ktmmotocross]

Re: HP Probook 450 G1

flashing bios is mostly the first to do. next is checking all voltages and power line resistances

[Stevedb]

Re: HP Probook 450 G1

Ok because i have no flashtool so i will order one ch341 is good enough?

[Stevedb]

Re: HP Probook 450 G1

hi everybody I got finaly my bios programmer, i will like to flash my hp 450g1 , i bought ch341A programmer black edition , but the chip couldn't be recognice. whe i look to the model is not listed.
it is MXic mx25l6473E chip. how can i flash this with ch341a programmer
this i hp probook 450g1 wit the 5 times caps lock and numlock blinking problem

[ktmmotocross]

Re: HP Probook 450 G1

u cannot have problem flash it. if it is not detected just manually select its series

[Stevedb]

Re: HP Probook 450 G1

Doesn't excist in the list the bios chip

[Stevedb]

Re: HP Probook 450 G1

hi i found the solution after a lot of search i found a new version of ch341 program that support the chip. In attachement the new version enjoy it.


but i can not upload it why? it sys invalid file

[Vesko356]

Re: HP Probook 450 G1

hi i found the solution after a lot of search i found a new version of ch341 program that support the chip. In attachement the new version enjoy

There is no attachment in your post.
Btw I wrote you six hours ago in your other thread what to do.

[Stevedb]

Re: HP Probook 450 G1

i know i can not upload it says invalid file but why?

[Vesko356]

Re: HP Probook 450 G1

i know

So why you perform "a lot of search" then?

i can not upload it says invalid file but why?

Because allowed file types for upload are:
doc
gif
jpe
jpeg
jpg
pdf
png
psd
rar
svg
txt
xls
xlsx
zip

That's why.