Can't save location when posting node through services module
How are you storing the location? Node location? Location CCK field?
take a look at:

https://www.drupal.org/node/906968

If you are using a CCK location field you should disable node location module.


Or if you aren't you could switch to a location field.


As a last option you could put latitude and longitude in their own text fields (like field_latitude and field_longitude) since gmaps module can take lat and lng from text fields.


  you can use CCK location which allows you a geolocation field, it
  comes with location module:
  
  https://www.drupal.org/project/location