Many thanks for you reply, my friend.

Unfortunately, the TPM message has gone but now is appearing "Unidentified System" instead of "Inspiron 3501". Further, the manufacturing mode message is still there.

I have tried to download a bios that you already fixed for another guy and made some changes using hex editor to change the Service Tag. Using these files (attached below), the message "Unidentified System" disappear and "Inspiron 3501" come back. However, the manufacturing mode message is still there.

So, could you...

Hi, people, how are you doing?

Can anyone help me to solve the issue related to Manufacturing Mode? I already tried to pickup a good bin file and change its service tag but nothing happened (ALT-F doesn't work). Fan is running fast and when I press any key a sound is emitted.

My service tag is:

ST: [B]7P3F5N3[/B].

I really appreciate the help in advance.

Regards,

Peter Rose.Hi, people, how are you doing?

Can anyone help me to solve the issue related to Manufacturing Mode? I already tried to pickup a good...

Re: Hp probook 640 g1



You are a lifesaver, bro!!!!

I have used this BIOS file and my board now is alive!!!

I could use the BCU program to tattoo my new board and everything is ok.

One more time, thank you so much.

Regards, from Brazil....