If e-voting is currently being used, what type(s) of technology used? - Nigeria

Country: 
Nigeria
Question: 
If e-voting is currently being used, what type(s) of technology used?
Answer: 
Not applicable
Source: 

Nigeria, Electoral (Amendment) Act, 2015, accessed 3 February 2019

52. (1) Voting at an election under this Act shall be by open secret ballot.

(2) The use of electronic voting machine for the time being is prohibited. […]