No long thin just follow this steps carefully it working 101% sure
How To Activate MTN Magic Sim In minutes
Step 1. Firstly, Load N300 or transfer N250 to your MTN SIM
Step 2. Dial *131*1*4*1# to subscribe for MTN 2 hours data plan. N250 will be deducted from Your SIM
Note the actual time your MTN 2hours sub will expired eg. 02-Mar-2016 10:50
Step 3. Now keep on browsing with your sim card.
Warning: Don’t download anything within your 2hours period
Step 4. After your 2hours usage you can start downloading with the sim card
Step 5. To activate your Magic sim completely, using example of expiring time above kindly removed your sim card around 10:45 and insert it back around 10:52.And your magic sim is completely activated.