I used a trial version of lightroom and lightroom mobile. within a few days of the trial expiring I used a credit card and bought a serial key from adobe.com to upgrade from trial to full version. but for some reason lightroom mobile on my iPads says my trial has now expired and i need to sign in with an id that has a paid version. i have already done that! how do i solve this problem? i can't use lightroom mobile yet i have full version on my desktop. please help.
In order to use Lightroom Mobile you must have a creative cloud subscription. Lightroom Mobile worked for 30 days because you are given a trial period. But beyond that trial, Lightroom Mobile cannot be used unless you subscribe to a creative cloud package. The most common one, I believe, is the one that includes Photoshop/Bridge, Lightroom and Lightroom Mobile for $9.99/month.