Key Takeaways
MTN's 4G Connect offer rewards customers who upgrade their SIMs to 4G/LTE with 10 GB of free data upon a successful upgrade. The LTE 100%/25% bonus gives newly upgraded customers a 100% bonus on select data plans priced at ₦15,000 and below for the first three months, then a 25% bonus from month four to month six. The Kpalasa offer (4G Smartphone offer) gives new and existing customers with new 4G smartphones a 50% data bonus for three to six months, activated automatically when the SIM is inserted into a new device. To check whether your current SIM card is 4G/LTE enabled, send '4G' to 312 via SMS. To check your LTE bonus data balance, dial *323*4# or send 2 to 312 via SMS.
Requirements Before You Start
Before you can enjoy any MTN 4G LTE bonus, confirm you have the following: a 4G-compatible phone (check your phone's network settings for 'LTE', '4G', '4G LTE', 'LTE Advanced', or 'VoLTE'); a 4G/LTE-enabled SIM (USIM) – if not, visit any MTN store to upgrade; your National Identification Number (NIN), mandatory by law; a valid government-issued ID (driver's licence, voter's card, national ID card, NIN slip, or international passport); and MTN 4G network coverage in your location. MTN has the widest 4G network across Nigeria; confirm coverage at MTN's coverage locator.
Step-by-Step Instructions
Checking If Your SIM Is Already 4G-Enabled
Do this before visiting a store to avoid an unnecessary trip. Open your phone's dialler, send the SMS '4G' to 312 from your MTN line, and wait for MTN's reply. A confirmation message means your SIM is already 4G-enabled. A rejection message means you need to upgrade. Alternatively, dial *123*41# on your phone to check device and SIM compatibility on the MTN network.
Upgrading Your SIM to 4G at an MTN Store
This is the critical step that triggers the 4G Connect (free 10 GB) and LTE 100%/25% bonus offers. Back up your contacts before going to the store, as contacts saved on the SIM card may be lost during the upgrade. Visit any MTN Service Centre near you, bringing a valid National ID, NIN printout slip, or driver's licence. At the counter, provide your phone number and NIN. You will then dial *663# and receive an upgrade OTP. Provide correct details of your SIM registration – full name, address, and date of birth – along with your last recharge amount and date. Submit your old SIM card and fill out the form provided. The store will issue you a new 4G-enabled SIM at no charge. Insert the new SIM into your phone and restart the device. As soon as your SIM is successfully upgraded, you will receive a welcome message informing you about the free 10 GB data and other 4G Upgrade offers.
Activating Your Phone's 4G Network Setting
After inserting the new SIM, ensure your handset is set to use 4G. Steps vary by device type. For most Android brands (TECNO, Infinix, itel): go to Settings → Network & Internet → Mobile Network → Preferred network type and select 4G network. For Samsung Android: go to Settings → Connections → Mobile Networks → Network Mode and select LTE. For iPhone (iOS): go to Settings → Mobile Data → Mobile Data Options → Voice & Data and select LTE.
Claiming the LTE 100%/25% Bonus After Upgrading
Once your new 4G SIM is active, follow these steps to unlock the bonus. If you newly upgraded your SIM to 4G, you do not need to dial or send any opt-in code. Simply buy select data bundles priced at ₦15,000 and below to enjoy the 100% bonus from the moment your SIM is upgraded. The LTE 100% bonus applies only to select data plans priced at ₦15,000 and below. Visit mtn.ng/personal/4g for the full eligible bundle table. Subscribe to a qualifying data bundle by dialling *312*1# or via the MyMTN NG app. Your bonus data is credited automatically. The 100% and 25% bonus data share the same validity as the data bundle you activated. For example, if you activated a monthly bundle, both the main data and the bonus data are valid for 30 days. If you already had a 4G SIM before this offer: text 'LTE' to 312 to opt in and enjoy the 25% bonus on select data bundles you buy for six months. Purchase any qualifying data bundle to activate the 25% bonus. Note that existing 4G SIM holders can only use the 25% bonus data while connected to a 4G network.
Checking Your 4G LTE Bonus Balance
Open your phone's dialler. Dial *323*4# on your phone, or send the number 2 to 312 via SMS. You will receive a reply showing your remaining LTE bonus data balance.
Troubleshooting/Common Errors
- No welcome SMS after upgrade: SIM not fully activated. Restart your phone; wait up to 30 minutes.
- 4G symbol not showing: Network mode not set to LTE. Go to Settings → Network Mode → select LTE/4G.
- Bonus not applied after buying bundle: Bundle is not on the eligible list. Check the eligible plans table.
- *663# OTP not received: Poor network or wrong details. Move to an area with strong signal and retry.
- Already on a 4G SIM but no 100% bonus: Offer only applies to new upgrades. Text 'LTE' to 312 to opt in for the 25% bonus instead.
Note: The LTE 100% and 25% bonus offer is one-off – you can only enjoy it once after your SIM has been upgraded to 4G. Also, you cannot roll over unused LTE bonus data – use it before it expires.
Contact Information/Official Links
- MTN 4G Upgrade page: mtn.ng/personal/4g
- Data bundle subscription: dial *312*1#
- Check 4G/LTE bonus balance: dial *323*4# or SMS 2 to 312
- Locate nearest MTN store: dial *123*7*1# or visit mtn.ng
- MTN coverage checker: coverage.mtn.ng
- MTN customer care: call 180 (free from MTN lines)
- MyMTN NG App: available on Google Play Store and Apple App Store
FAQs
How do I activate MTN 4G LTE?
If your current SIM is not a USIM (4G-enabled), visit any MTN store near you to upgrade your SIM to 4G. After getting your new SIM, set your phone's network mode to LTE/4G in your device settings. As soon as the upgrade is successful, you will receive a welcome message confirming your free 10 GB data and other 4G offers.
How much data do you get for free on the MTN 4G LTE bonus?
There are two separate free data components. The MTN 4G Connect offer rewards customers who newly upgraded their SIMs to 4G/LTE with 10 GB free data upon a successful upgrade. This free 10 GB data is valid for three days from the day of upgrade. On top of that, the LTE bonus gives newly upgraded customers a 100% bonus on select data plans priced at ₦15,000 and below for the first three months, then a 25% bonus from month four to month six.
What is the code for the MTN 4G LTE bonus?
Send '4G' to 312 via SMS to check whether your SIM card is 4G/LTE enabled. To check your LTE bonus balance, dial *323*4# or send 2 to 312. To subscribe to qualifying data bundles and trigger the bonus, dial *312*1# and select your preferred plan.
What is MTN fixed LTE?
MTN is combining fibre rollout with 4G and 5G-based Fixed Wireless Access (FWA) under its 'Own-The-Home' strategy. MTN broadband data plans are internet bundles specifically designed for broadband devices such as MTN routers, modems, MiFi devices, and fixed wireless terminals – as opposed to standard mobile SIM data plans. You can explore fixed LTE router plans at mtn.ng/broadband.
How long does the MTN LTE bonus take to activate?
As soon as your SIM is successfully upgraded to 4G, you will receive a welcome SMS confirming your free data. The 4G Connect (10 GB) bonus is generally credited immediately after upgrade. Many users receive the bonus automatically after the upgrade, while others may need to send the activation SMS ('4G' to 312) to trigger it. Allow up to 30 minutes; if there is still no confirmation, contact MTN customer care on 180.
DISCLAIMER: This article is not sponsored by any third party. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional advice or help and should not be relied on to make decisions of any kind. Any action you take upon the information presented in this article is strictly at your own risk and responsibility.
