The channels that are in a Baofeng from the factory are factory testing frequencies and MUST NEVER be transmitted on. Additionally, those frequencies are not always the same.
(1) Where does your friend live?
(2) Will he be testing online or in-person? If in-person, perhaps the VEs could help or know of someone locally who would help him.
(3) Perhaps there is a ham club in his area. Usually, a club member will help him.
(4) Is there someone in his household who could help him if you talked them through it on the phone?
(5) If #4 is yes, they could install CHIRP for him and download an image file from his radio and send it to you for customization. Then you send it back for them to upload into his radio.
(6) The least desirable option is for him to send his radio to you for programming.
Good luck and 73 - John, KZ4KY