How To Unlock Oppo A78 by Unlock Code

  • Last Update: 10 Sep, 2023 /
  • Total Views:

Unlocking your Oppo device from a carrier can be hard, but not impossible! In this article, we'll show you how to unlock Oppo A78 for FREE no matter which carrier has locked your device, and get your Oppo unlocked easily.

To make the unlocking process possible, we have created the Oppo Unlock Code Generator, an online tool that helps you to unlock your Oppo device by generating a unique NCK unlock code based on the device's IMEI. Everything works online, so there's nothing to be downloaded or installed on your phone.

We do that by whitelisting your IMEI number in the Oppo's database, so your phone will be seen as official unlocked and will not be necessary to unlock it again even after factory reset is done. That's exactly the same method network carriers use to unlock their devices to keep their customers as long as they can.

This can be done even you forgot your passcode, as long as the unlock code can be entered on screen-locked phones.

Introduction - About NoobDev

As you may already know, we are a team of software developers which create mobile unlocking tools to make your life easier. Beside our DualBoot Patcher (recognized by the tech industry) we also contributed to some top unlocking software such Medusa Pro Box, EFT Pro Dongle or Pangu Jailbreak - we have combined those tools into our phone unlocking tool.

If the mentioned tools work on your computer by downloading and installing a software and are limited, our tool works online on your browser, desktop or mobile devices, getting instant results. No cable needed, no time waiting and nothing to be installed.

NoobDev consists of a team of software developers creating mobile tools that helps you to unlock network, password, passcode, PINs, unlock FRP on your mobile device, but we are also the creators of the DualBoot Patcher that helps you to install any number of ROMs at the same tame. We are also co-creators and helped build tools like Odin, OctoPlus, Medusa, EFT Pro Dongle, MicroBox and others.

Besides that, we are creating how to guides, including how to factory reset a phone, take screenshots, screen reset, bypass google lock, hard reset mobile and other devices, remove FRP on any device, check phone's IMEI and lots of guides related to mobile and desktop devices. Read more about us and how our tools can help you.

What is Oppo Unlocking

Unlocking a Oppo A78 device means you are patching a certain software created by the network carriers to prevent their customers using a different mobile network, even those are technologically compatible. How and when devices are unlocked depends on carrier and their eligibility requirements.

Carriers don't like when you get your Oppo unlocked before your contract ends, so even if you're paying them in advance, there might be some other requirements such having a device that is reported as lost or stolen. So make sure to read and understand carrier's unlock policy before asking for the Oppo A78 unlock code.

Types of Unlocking Methods

Beside unlocking by IMEI, which is the best and most popular method to unlock a Oppo phone, there are other methods to get a NCK (Network Code Key) for your device but must be performed with caution as those methods can cause damages to your mobile device, which we don't recommend them at all.

Software unlocking: because cell phone unlocking is a profitable business, we counted over 25 software and tools to unlock Oppo devices. While some of them are very limited and require buying the software, others might be free but contain viruses and have been created with bad intention in mind. So be careful when you chose the unlocking software.

Hardware unlocking:  if you are a tech geek, then you may know how to unlock Oppo A78 by yourself. You first might need a mobile unlock software for PC, an OTG cable adapter but also know how to root a phone. When your phone is rooted, you can do anything you like. In this case you might lose your phone's warranty or lose some data.

IMEI unlocking: the best method to unlock any Oppo is by cell phone's IMEI. Not only is the cleanest, fastest and the safest method to get a Oppo network unlock code, is also what we recommend doing. Using NoobDev's unlocking tools you will be able to calculate the unlock code based on IMEI or Serial Number even if is blacklisted.

Unlock Oppo A78: Pros and Cons

Unlocking Oppo A78 is one of the very first things you might want to do in order to get carrier freedom. We all know that an unlocked phone have no restrictions, contracts, or obligations to any company, and you will be able to switch the network carrier whenever you want. Carrier freedom, saving money, friendly travel or greater coverage area are some pros. Let's check them all, step-by-step.

Carrier freedom: first and best useful benefit allows you to be free to choose any network carrier which suits you. However, on the other side, the disadvantages is that unlocked phones won't get any carrier's support. So if you get any network issues, don't count on them, as they don't have to help you.

Friendly travel: an unlocked Oppo device gives you the advantage to travel anywhere in the world without worrying about roaming data costs. Just get a local SIM card and use it at local rates. Depending on country, the disadvantages could be higher prices on making calls or using the internet data.

Save big money: although an unlocked phone is a bit expensive, in the long term will actually be cheaper if you buy a cheap prepaid SIM card as you wish. However, we don't need those tons of calls and texts promised by carriers, which may costs higher than a prepaid SIM.

Sell for more: if you want to buy unlocked Oppo phones, you will notice higher prices. That's also an advantage of having your device unlocked. On the other side, locked phones are the cheapest ones because they are stuck within a carrier and can't switch the network so easily.

So you already know who we are, which tools will be using to unlock Oppo carrier and benefits of having your phone unlocked. Let's see how to generate the Oppo unlock code, some FAQs about unlocking a mobile phone but also how to get rid of “sim not supported" error on Oppo.

How To Unlock Oppo A78 in 4 Easy Steps

You're 4 steps away to generate the unlock code and get your phone unlocked in no matter of time. However, on the tool's page you will find a complete guide on how to unlock your phone with the generated code, how to use it and some also tips about your device.

Step 1: Submit your IMEI and click on the CONNECT button. The easiest way to find the 15 digits number is by opening your phone app and tap *#06# just like making a phone call. Then IMEI will show up on the screen. Note down / copy that number and then paste it to the IMEI field.

Step 2: On the 2nd step, you have to choose country and network carrier that locked your Oppo phone. In case you don’t know these details, just select WORLDWIDE on both fields and unlocking will be done through IMEI only.

Step 3: Once you press the “Start Unlocking” button, our tool will start the Oppo unlocking process. This can take a while, but no more than 5 minutes. In this step, we'll connect to Apple’s database and will calculate the NCK code (unlock code) based on the specified IMEI.

Step 4: When the process is finished, you can download the 8 digits unlock code and instructions to unlock Oppo A78 network carrier. Our tool have a success rate of 80%. In case it fails, please try again. You can try as many times you want and also unlock how many devices you want.


We know it can be difficult, time-consuming, and expensive to unlock a Oppo A78 phone these days, so that's the main reason we've created our unlocking tools, so anyone can have the freedom to use their SIM cards with any network carrier they want.