Usually, I am not this dense...however...I'm trying to register my product and can't find the serial number.  I've tried every number on the box.  Is it the UPC?  SAP?  MEID? P/N?  Which number do they want?

Turn off the phone and take the battery out. Below the battery there is S/N or written Serial Number. That is the number you are looking for. 

Alternatively, you can also find the serial number without turning your phone off (HTC Desire HD):

-

1. Menu

2. Settings

3. About phone (right at the bottom)

4. Phone identity

5. The number you want is titled "Device serial number"

I have the same issue on my Evo 4g, but I'm not seeing an entry titled "Device serial number". Stupid question--if I'm FORCED to remove the battery, that won't affect anything on the system, will it? Sorry, this is my first smartphone and don't want to mess anything up.

TIA

elaine

charlottesville, va

Hi Elaine,

I had the same issue with my HTC Evo 4G on Sprint.  Just do the following:

1) Power off your phone (no, you won't lose anything!) :)

2) Remove the back

3) Remove the HTC battery (there is a handy "finger hole" on the left for easy removal)

4) The S/N will be found under the fourth (last) barcode.  You'll see it begins with "S/N:"  Copy that puppy down and save it to your Outlook or email client address book in case you need it again!  :)

5) Replace the battery

6) Replace the back

7) Turn on your phone and continue to enjoy the best phone you've ever had!!

Hope you had a Merry Christmas and a very Happy New Year!

Best wishes,

Matthew Booher

Sparks, NV

One last thing Elaine...it is difficult to distinguish between zeros and the letter O when looking at the serial number.  My S/N turned out to be zeros, but they looked like O's.  When I changed my O's to zeros, HTC was able to find my phone.

For those over 40 who cannot find their magnifying glass, its on the end of the egg-crate package of the Evo 4G.

Extremely poor programming not to include it in a look up table somewhere!