Most Nigerians use Android phones every day without realizing they have secret codes that can unlock hidden features, run diagnostics, and access detailed information — all without downloading any app.
Whether you’re on MTN, Airtel, Glo, or 9mobile, these Android hidden codes work directly from your phone’s dial pad. In this guide, I’ll reveal the must-know Android codes in Nigeria and explain exactly what each one does.
Why Hidden Android Codes Matter in Nigeria
In a country where mobile phones are a lifeline — for work, banking, social media, and entertainment — knowing these codes can save you time, money, and even help you troubleshoot problems on the spot.
Here are a few scenarios where they can be a game-changer:
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Buying a used phone in Lagos or Abuja? Quickly check if it’s authentic using its IMEI.
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Battery draining too fast? Test its health instantly.
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Suspect your phone is faulty? Run a full diagnostic without visiting a repair shop.
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Data usage worries? Track your stats without waiting for your network provider’s SMS.
1. Check Your IMEI – *#06#
IMEI stands for International Mobile Equipment Identity — a unique number every phone has.
In Nigeria, checking your IMEI is essential before:
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Buying a second-hand phone from Computer Village, Ikeja or Slot.
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Reporting a stolen phone to the police or your network provider.
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Verifying if your phone is original.
Steps:
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Open your phone’s dial pad.
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Type
*#06#. -
Your IMEI will appear instantly.
Pro Tip:
Write it down or save it somewhere safe. If your phone is stolen, MTN, Airtel, Glo, or 9mobile can use this number to blacklist it.
2. Test Your Device – *#0*#
This is one of the most powerful Android secret codes — but it works only on certain brands like Samsung, Tecno, Infinix, and Oppo.
What it does:
It opens a hidden diagnostic menu where you can test:
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Screen colors (red, green, blue)
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Touch sensitivity
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Speaker and vibration
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Camera performance
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Proximity sensor
Why it’s useful in Nigeria:
Before paying for repairs, you can find out exactly what’s wrong. For example:
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If your Tecno’s touchscreen isn’t responding properly, you can confirm if it’s a hardware or software issue.
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When buying a “London used” Android, run these tests to avoid surprises.
3. Show Battery Info – *#0228#
Battery problems are very common in Nigeria due to constant charging from generators and power banks.
This code lets you:
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See the exact battery percentage (more accurate than your home screen).
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View battery health status.
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Check voltage and temperature.
Example:
If your battery shows “Good” but drains in two hours, the problem might be an app — not the battery itself.
Tip for Nigerian users:
Avoid charging with cheap, fake chargers from roadside vendors. They can damage your battery health.
4. View Usage Stats – `##4636##
This is a must-know Android trick for tracking phone performance and mobile data usage.
When you dial it, you can:
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See phone information (signal strength, network type)
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Check battery stats
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View app usage history
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Run a ping test
Why Nigerians love this:
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MTN data finishing too quickly? See which apps are eating it up.
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Poor Airtel or Glo signal in your area? Check your signal strength in real time.
Other Useful Android Codes for Nigeria
While the four above are the most popular, here are a few extra that might come in handy:
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*#*#7780#*#*– Factory reset (be careful, wipes all data) -
*#*#273282*255*663282*#*#*– Backs up all media files -
*#*#34971539#*#*– Camera information -
*#*#232339#*#*– WiFi test
Safety Warning
Not all Android codes are safe to use. Some can delete your files or reset your phone without confirmation.
Golden rule:
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If you’re not sure what a code does, Google it first.
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Only use diagnostic codes on your own phone.
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Avoid entering suspicious codes shared on random WhatsApp groups.
How to Remember These Codes
For quick access:
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Save them as a note in your phone.
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Screenshot this article.
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Print them out and stick them near your charging station.
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Call-to-Action
Now that you know the hidden Android codes every Nigerian should know, try them out and see which ones surprise you.
Which code shocked you the most? Share in the comments or tag us on Instagram with your results.
