The first thing you will do, is to create a confirmation code with your phone, by sending your "Surname Firstname Othername" to 55019. They will charge you #50 for the SMS.
For full explanation on how to create the JAMB confirmation code, click the link below
After you've done that, you will receive a confirmation code from JAMB.
Then, you will go to the bank (UBA , Firstbank, Union bank etc) to purchase the JAMB E-pin. When you get to the bank, ask for instruction from any of the bank staffs you see. You will be asked to provide the confirmation code which JAMB sent to your phone, they will need it in order to generate your E-pin.
Now that you have purchased the JAMB E-pin, you can now go to any JAMB CBT registered centre you know. You will be asked to provide your o'level result, JAMB E-pin, your confirmation code, and your passport ( they might use the laptop to snap you).
After you have successfully registered for the JAMB 2019, you will be given a print out of the JAMB registration and also the compulsory storybook.
You should also note that everything will cost you #4700 only. The breakdown-
JAMB E-pin + storybook =#3500 + #500 ( to be paid together in the bank)
Cbt registration fee= #700 (to be paid after you have successfully registered for JAMB 2018)