The government must realise the need for technological advancement and make consistent policies towards achieving that goal. The expenditure on education must increase especially spending on STEM (Science, Technology, Engineering and Mathematics). There must be incentives to study such courses or be proficient in those areas.
The private sector in synergy with the government must sponsor exceptional students to study STEM courses outside Nigeria. This is imperative because the technological ability of the present set of professors and tutors Nigeria is grossly limited.
The students must be motivated to aspire to high technological competence. I doubt this is a challenge though because many Nigerian students are at the limit of the technological capacity available to them.
Lastly, the infrastructural deficit in the country has to be overcome. This would require government funding, private investment and innovative designers, engineers, scientists etc. Electricity must be readily available, University research centres must be equipped, Manufacturing plants must be established and Innovative start-ups must find a conducive environment for business.