It looks like a new install of Drupal helped as well as enabling the “Product attributes” under:
/admin/modules > Ubercart – core (optional) > Product attributes.
It’s best to start with a clean install of Drupal, dedicated to Ubercart and the stockunlocks module.
unlock code - US Cellular SPC/MSL (Blackberry, HTC, Palm, Samsung, etc): 1-3 hrs
NOTE: 18 Digit MEID DEC is required