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- Tablets and Mobile Devices Archive
- Cmos errore 503

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07-16-2016 04:11 PM
I have this errore when I boot mi pavilion X2 210 ,
Cmos checksum invalid
Error 502,
And the computer failed always the boot....
What I can to do?
I think is the CMOS battery...I have to remove it?
Thank you
Millino
07-16-2016 07:20 PM
Hello Millano,
Take a look at this documentation on your error.
HP and Compaq Desktop PCs - Error: CMOS Checksum Bad | HP® Customer Support
Let me know if this helps.
07-17-2016 04:45 AM
So you're saying you have replaced the cmos battery as the article suggested and it still has the error?
Is your tablet still under warranty?
If so, you need to contact HP Support for warranty issues.
Contact HP Worldwide | HP® Official Site
07-17-2016 05:48 AM
OK if that is the case, here is the link to the PDF file from HP for taking apart the X2 210.
HP Pavilion x2 Detachable Notebook PCHP x2 210 G1 Tablet Maintenance and Service Guide
Although I did not find specific instruction's for removal of a cmos battery for that model, I found similar info for another X2 12 that should give you the general idea.
I will add that you do this type of task at your own risk.
Hope it helps.
