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05-29-2011 05:22 AM
My computer cannot get past the Cooling Fan (902) error screen. I can see here on the forum that a BIOS update might help. I have tried to download the latest bios (sp50600.exe file) and put it on a USB stick - followed the remove battery, insert USB stick, boot with Windows + E buttons pressed. However nothing happens - the computer still just display the same cooling fan error message.
What can I do next?
Is there any way to get access to the data on the harddrive and copy it to an external harddrive before sending the computer for repair?
05-29-2011 05:36 AM
How to back up your data
05-29-2011 05:47 AM
Can this be done from a USB stick or only from the DVD drive? The DVD drive is an external USB drive on the HP Envy 15.
05-29-2011 06:31 AM
Now I tried this... however the HP Envy does not boot from the external CD drive - it still goes directly to the Cooling Fan (902) error screen. Is there any way to force it to boot from the CD drive? Or is it simply "so damaged" that it will refuse to boot in any way?
05-29-2011 11:38 AM
From a cold start try tapping the F9 key repeatedly, see if you get the boot device options, if you do select the usb optical drive.
06-04-2011 05:41 AM
ok i just went to HP service center. They have tried replacing the fan and cleaning the old one but the problem remains the same. They recommended that i should give them "dead call approval" to perform a soldering or heat operation to the bios in order to reset it. But there could be chances that it will curropt the bios. After hearing this i rejected the offer and went to a local repair shop. Ok the local engineer have came to conclusion that IT is not necessary that only fan has the issue that is causing the 902 error. It could be a problem with the "conductive pathways" on the board where the bios chip or fan is located or maybe the other similar issue that is causing the problem Because Bios chip IS NOT DEAD. It is still giving a display of error message. He said a worst case could be with that data inside the chip could be currpoted and there is no need to use heat operation in order reset the bios chip! What he suggested is that he has a "Laser" technology which can actually reset the data inside the bios chip. So there is no need to either replace the chip or apply heat to it. Ok important point to note here is that there are several reasons that can cause bios cooling fan 902 error. Those people who have successed by blowing air into vents had only minor problem with the fan speed due to dust inside it. That is why there problem is solved. But in our case where almost evey operation has failed is because extended heat has caused a hardware problem (Not necessary with the bios chip) but on the board OR it has curropted the data inside the bios chip. Tommarow i will bring my laptop to that local engineer and we will find that problem. I will keep you guys updated. thanks