 |
| How to Upgrade Glo SIM to 4G in Nigeria |
Learn how to upgrade Glo SIM to 4G in Nigeria with step-by-step instructions, requirements, bonus data offers, device tips, and coverage essentials for fast internet.
Upgrading your Glo SIM to 4G is one of the easiest ways to dramatically improve your mobile internet experience in Nigeria. Whether you’re frustrated with slow browsing, video buffering, or lagging downloads, switching from an older 3G SIM to a Glo 4G SIM unlocks faster speeds, smoother video streaming, quicker downloads, and more reliable connectivity. This guide breaks down exactly how to upgrade Glo SIM to 4G — from eligibility and requirements to concrete steps and bonus incentives — in a clear, user-friendly way with the latest 2026 insights.
Why Upgrade Your Glo SIM to 4G
As data usage skyrockets in Nigeria, 3G networks can no longer keep up with the demands of modern mobile life — especially for streaming, remote work, online learning, and social media. Glo’s 4G LTE network delivers significantly faster speeds compared with 3G, but not all old SIM cards support it. That’s why knowing how to upgrade your Glo SIM to 4G is crucial for anyone who wants better performance on the Globacom network.
According to network guides, upgrading to a 4G SIM ensures your number and subscription remain the same while enabling you to enjoy high-speed internet services available in your area.
What Is Glo 4G LTE?
Glo 4G LTE is a fourth-generation wireless standard that provides:
- Faster internet speeds — ideal for HD video, gaming, and large downloads
- Lower latency — for smoother real-time apps like video calls
- Improved stability — better handling of multiple apps simultaneously
It’s a significant upgrade over 2G/3G and works best with 4G-compatible phones.
Requirements Before You Upgrade
Before you start the process, make sure you have the following:
A 4G-Capable Device
Your phone must support 4G or LTE technology. Go to Settings > Network & Internet > Mobile Network > Preferred Network Type to check if 4G or LTE appears as an option.
Your Current Glo SIM
Older Glo SIMs (typically 2G or 3G era) do not support 4G, which is why an upgrade is necessary unless your SIM already says “4G” on it.
Valid ID for SIM Swap
When visiting a Glo outlet, you’ll need a valid ID (like your National ID, Voter’s Card, or Driver’s License) for verification before a new SIM is issued.
Important Note: Coverage Matters
Before upgrading your SIM, make sure that Glo 4G coverage is available in your location. Being outside 4G coverage can make the upgrade pointless, as you won’t see speed improvements without it. You can check coverage directly with Glo customer service or local outlets.
Step-by-Step: How to Upgrade Glo SIM to 4G
Here’s the proven way to upgrade your Glo SIM and get fast LTE speeds.
1. Check If Your SIM Supports 4G
First, confirm whether your current SIM is already 4G-ready:
- Dial
*777#and look for SIM or network service options that reference “4G” or “LTE.” - If you see no 4G options, your SIM is likely older and needs upgrading.
If your SIM doesn’t show any 4G support, proceed with the upgrade.
2. Back Up Your Contacts
Even though the SIM upgrade process normally doesn’t affect your number or data, backing up contacts to your phone or cloud service is a good precaution.
3. Visit a Glo Retail Outlet
To upgrade your SIM:
- Locate the nearest Glo World, Glozone, or SIM Swap outlet near you.
- Bring your original ID for verification.
- Tell the staff you want to upgrade your existing SIM to 4G SIM.
Glo will replace your old SIM with a new 4G-enabled SIM while keeping your original number intact.
4. SIM Swap and Reinsert
- Once issued, insert the new SIM into your phone.
- Restart the device to activate the new SIM.
- Go to network settings and select “4G/LTE” under Preferred Network Type.
5. Configure APN (If Necessary)
Usually, Glo auto-configures internet settings. But if you experience issues, enter these manually:
- Name: GLO NG
- APN: gloflat
- Username/Password: Leave blank
- Authentication: PAP/CHAP
- APN type: default
What to Do If Your Phone Still Shows 3G After Upgrade
If you’ve inserted your 4G SIM but still see “3G”:
- Go back to Settings > Network > Preferred Network Type and select 4G/LTE.
- If it still doesn’t work, check whether you’re in a covered 4G area.
- Restart your device again.
- Ensure the SIM is in the slot that supports 4G (often SIM Slot 1 on dual-SIM phones).
Bonus Incentives: Free Data for Upgrading
Glo has historically offered attractive incentives to encourage SIM upgrades. In past promotions, customers who upgraded to a Glo 4G SIM received free data bonuses — commonly up to 10GB usable on their first data purchase after the upgrade, with extra percent data bonuses on future purchases.
While promo details may vary with time and campaign, these incentives make upgrading even more worthwhile.
Tips for a Smooth Upgrade
Bring Valid Identification
Bring your original ID — such as your National Identity, Voter’s Card, or Driver’s License — to any Glo shop when requesting SIM swap.
Insert SIM in the Right Slot
Most smartphones only support 4G on one SIM slot. Make sure your Glo SIM is in that slot for high-speed access.
Check Glo’s Coverage Map
Always confirm whether your area has active 4G coverage to make the most of the upgrade.
Frequently Asked Questions
Q: Will I Lose My Number After Upgrading?
No. Upgrading your Glo SIM to 4G does not change your phone number.
Q: Does the Upgrade Affect My Tariff Plan?
No. Your existing tariff plan remains the same. The 4G SIM simply enables access to faster internet on the same line.
Q: Do I Need a New Phone?
Your phone must be 4G-enabled to use the upgraded SIM. If it doesn’t support 4G, you won’t get the speed benefits even with a new SIM.
Ready to experience faster internet on Glo?
Visit your nearest Glo World, Glozone, or SIM Swap outlet today with your valid ID to upgrade your SIM to 4G. Enjoy improved speeds plus any available bonus data promotions!
Conclusion: Why This Upgrade Is Worth It
Upgrading your Glo SIM to 4G is one of the simplest and most impactful ways to improve your mobile experience in Nigeria. With faster browsing, clearer streaming, and smoother connectivity, the shift from 3G to 4G brings your phone into the modern digital age — without losing your number or subscription.
By following this guide, you’ll know exactly how to upgrade Glo SIM to 4G, what to bring, what to expect, and how to maximize the benefits including potential free data incentives.
