HTC One X - Software Update not working?

The OTA updates have to be installed sequentially (one cannot be skipped), so if one was missed along the line, it "breaks" the process.  Since you are still on 4.0.3, this is what I suspect is happening in your case.

 

Back up your personal data, than download and run the RUU.  The RUU download is located on the following webpage (click "News & download" then follow the manual system update instructions):

 

http://www.htc.com/us/support/howtos.aspx?p_id=464&p_name=htc-one-x-att

That link doesn't work anymore...do you have another link or options? Thank you

Here is the new link:

 

http://www.htc.com/us/support/htc-one-x-att/news/

 

The download is for the latest (5.18) software version RUU.

cannot update manually to sense 5 ...ruu not dat I downloaded. from HTC news s downloads ..ain't opening ...plz hlp me to update the phone

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@rahul00592 wrote:
cannot update manually to sense 5 ...ruu not dat I downloaded. from HTC news s downloads ..ain't opening ...plz hlp me to update the phone

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If you expect a  readable, well written post in response; then you need to do the same.  I know you are posting from you phone.  But if you care enough to take the time to post, then just take a little more time to make your post legible, in real English (not abbreviated "text message" speak), and provide details.  Go to a computer keyboard if need be.

 

Does the RUU program not open at all?  If not, Try downloading again.  It needs to be run on a PC (Mac will not work).

 

Or does the RUU open, but fail to update the phone?  Any error messages?  Any response from the phone during this time?

 

You need to have HTC Sync Manager (or at least the HTC drivers) installed.  If its not, install it.  If its already installed, try re-installing it.

 

Try different USB ports, or even another PC if possible.  HTC drivers can be very finnicky.  

 

 

4.1.1 was the last update for the one x