At home, I just attempted to scan a few old gift cards but once again, the access numbers are almost impossible to read even if it's under a bright light. I did managed to add one of the gift cards. Tonight before work I'll go by the store and ask someone if they can read the darned access numbers so I can input these into the Target App's Wallet.
This whole issue of illegible and inconsistent gift card access codes is really annoying and doesn't show much regard for our guests, many of whom have probably struggled with this at self-checkout, at target.com or using the Target app.