Every year, our students face serious issues with JAMB but they do not know how to address these challenges. I know someone who forfeited the exam simply because he had a problem during registration.
This is why I'm making efforts despite my tight schedule to bring these common issues and how to address them. Here are common challenges we face during JAMB registration.

PROBLEMS DURING JAMB REGISTRATION
There are several issues you may face in the course of JAMB Registration. Here are some of these issues and how to resolve them.

1. Profile Code Activation Problem: This was not an issue until recently when the JAMB Board introduce the use of the National Identification Number (NIN). This has complicated issues for students and makes the entire process very frustrating.
To avoid this, avoid using other people's SIM cards. Register a new sim card and link it to your NIN prior to the JAMB registration exercise. New sim cards take several weeks before they are linked to NIN. Therefore, JAMB has provided an avenue to expedite this process.
On your mobile phone (using the line used to get your profile code), text as follows: "your new email" and send to 55019 or 66019.

2. Use Of Different Phone Numbers Or Email
Some gullible students will create a JAMB profile with one email and purchase a Pin with a different one. This will create unnecessary problems for you in the course of your registration exercise. Make sure the Phone Number or email used during registration matches the one on your dashboard.

3. Fingerprint Not Working
This issue is very common among female aspirants who use henna or powerful detergents when washing dishes and clothes. If you experience this, don't fret or walk back home. JAMB has officials who can communicate with them in Abuja so that your case will be registered. Sometimes such candidates are asked to write their exams at a later date.

4. Technical Errors
This is faced by the JAMB registration team working with malfunctioning computers and outdated gadgets. As a result, too much work affects the efficiency of these computers and they will start to misbehave.
Many times students spend several hours in a queue waiting to be enrolled for the JAMB registration exercise. This issue needs to be addressed by the JAMB Board.

PROBLEMS AFTER JAMB REGISTRATION
1. Candidates Cannot Print Result Slip: Sometimes students are very eager to write the exam that they tend to print the examination slip even before it is made available on the JAMB website. If you try to print your result or examination slip but it is not working, is because JAMB has not uploaded the results to their website. Kindly wait till they do so. Avoid listening to rumours and unverified information across social media platforms.
2. Exam Slip Contain Wrong Information: This is why candidates are encouraged to provide correct details during registration. Some registration officers are exhausted and may not care to verify the information given to them. They are eager to finish with you and move to the next student in the queue. This mistake will cost you time and money to rectify.
3. Problem Of Change Of Course Or Institution: If your JAMB result is too bad for the chosen institution, kindly buy a green card of 2500 and change. Do not waste the entire result simply because one particular institution does not accept your score.
We have abundant universities that offer admission even with 150 scores. Don't insist on going for a particular course or institution. Time does not wait for anyone.

Source:
https://www.nigeriancampus.com.ng/2022/05/all-jamb-questions-issues-and.html?m=1

Nice piece