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    HP Probook 450 G1

    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

    #2
    Re: HP Probook 450 G1

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

    Comment


      #3
      Re: HP Probook 450 G1

      Hi sorry i was wrong it is 5 times blinking.

      Comment


        #4
        Re: HP Probook 450 G1

        Check cmos battery.Flash bios.

        Comment


          #5
          Re: HP Probook 450 G1

          I replaced the cmos battery is the same

          Comment


            #6
            Re: HP Probook 450 G1

            Anyone has more ideas

            Regards

            Steve

            Comment


              #7
              Re: HP Probook 450 G1

              have you tried a clean bios? ..
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                #8
                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

                Comment


                  #9
                  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
                  Attached Files

                  Comment


                    #10
                    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

                    Comment


                      #11
                      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?

                      Comment


                        #12
                        Re: HP Probook 450 G1

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

                        Comment


                          #13
                          Re: HP Probook 450 G1

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

                          Comment


                            #14
                            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

                            Comment


                              #15
                              Re: HP Probook 450 G1

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

                              Comment


                                #16
                                Re: HP Probook 450 G1

                                Doesn't excist in the list the bios chip

                                Comment


                                  #17
                                  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
                                  Last edited by Stevedb; 02-15-2020, 05:28 PM.

                                  Comment


                                    #18
                                    Re: HP Probook 450 G1

                                    Originally posted by Stevedb View Post
                                    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.
                                    Last edited by Vesko356; 02-15-2020, 05:27 PM.
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                                      #19
                                      Re: HP Probook 450 G1

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

                                      Comment


                                        #20
                                        Re: HP Probook 450 G1

                                        Originally posted by Stevedb View Post
                                        i know
                                        So why you perform "a lot of search" then?

                                        Originally posted by Stevedb View Post
                                        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.
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                                        Become a Badcaps supporter
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                                        Thanks to all supporters.​
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