May I ask if you can open the safe with your fingers after insert 4 AAA Alkaline Batteries before you program.
Any fingerprint can open the door before programming the fingerprints.
If this still can't work please send our customer service a video to show us the issue? We need more specific information to help you solve the problem.
If you cannot open the safe, Would you mind to send us some videos to show us the whole process that you insert 4 AAA alkaline batteries set and set fingerprint? we need them confirm the problem and reflect to factory, and then we can process this issue.