It seems the protest held in most cities in the country has paid off as JAMB has re-opened it's portal for the next 48hrs to allow candidates, who had already started the registration, to complete it and submit.
That means candidates, who had not started any registration with accredited centres, before the portal closed, will not be allowed to register at all.
Below is the actual stated released by the board;
"The Joint Admissions and Matriculation Board hereby direct all candidates ‎who have initiated the process of registration for the 2016 UTME but ‎couldn’t upload and complete their registration process as at Friday 5th ‎February, 2016 to do so within 48 hours starting from 12 midnight on ‎Tuesday, 23rd February 2016 when the website will be opened to 12 midnight ‎on Thursday, 25th February, 2016 when the website will be closed.
"The Board wishes to state that the directive doesn’t cover fresh ‎registration but only those who had either done offline registration or ‎visited our website but could submit.
"The Board wishes to state that all arrangements for the 2016 UTME have been ‎completed and examination will commence as earlier stated.
"Candidates are also urged to print their examination slips for the schedules ‎of their date, venue, time allotted to them and other necessary information.‎"