I flexed the disk, but the pack never got very warm and never completely crystallizedis it broken?
No, when the pack doesnt completely crystallize, although it may warm slightly, its simply because there were still remnants of crystals that weren’t completely dissolved while boiling OR it wasnt allowed to cool completely after boiling. Simply boil again completely, let cool and pack will be ready to use again. Attempting to activate Baby Goga by flexing the disk while the pack is still warm after boiling will prevent it from functioning properly that time, but will not damage the product for future use.