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[Osaka/Yokohama/Tokushima] Looking for infrastructure/server side engineers!

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[Compatible with over 200 countries] Global eSIM “Beyond SIM”

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[If you are traveling, business trip, or stationed in China] Chinese SIM service “Choco SIM”

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[eSIM] Smartphone SIM lock and how to unlock it

Introduction

It's getting colder in Shenzhen, this is Gaocheng from Beyond Shenzhen.

you know the term "SIM lock"

When I was a student, I read a manga set in Kameari, Katsushika Ward, Tokyo that was serialized in a weekly magazine.

a Beyond SIM (eSIM) that you thought would be ready to use right away , it would be a problem if the eSIM did not function due to an issue with the specifications of your smartphone or other device. .

This time, as a way to deal with such a situation, we will introduce ``Explanation of SIM lock'' and ``How to unlock it by yourself''!

What is SIM lock?

SIM lock means that the SIM is locked and cannot be used.

This means that whether it is a physical SIM or an eSIM, the carrier locks the device such as a smartphone so that only the carrier's line can be used.

In principle, devices sold after October 2021 do not have this SIM lock , but if the device was purchased before then, it may be locked so that only the line of the seller can be used. There is a gender.

SIM unlock procedure - iOS version -

First, make sure your device is SIM-locked.

Settings > General > Information > SIM lock

→ If the phone is SIM-locked, "SIM-locked" will be displayed.

Next, check the IMEI number of your device.

Settings > General > Information > IMEI number

→ If your phone supports dual SIM, two IMEI numbers may appear. Basically, check the IMEI number, not IMEI2.

Once you have confirmed this information, log in to the official website of your carrier and follow the instructions to proceed with the SIM unlocking procedure.

Once the procedure is complete, Beyond SIM and check whether the eSIM you purchased can be used.

SIM unlock procedure - Android version -

Similarly, please make sure that your device is SIM-locked.

However, depending on the model and OS version, you may be able to check from the settings screen, or you may not be able to check at all.

If you cannot confirm this in the settings, check whether an error occurs when loading another eSIM.

Next, check your IMEI number.

Settings > Device information > Device status > IMEI number

→ If your phone supports dual SIM, two IMEI numbers may appear. Basically, check the IMEI number, not IMEI2.

Once you have done this, log in to the official website of your carrier and follow the instructions to unlock the SIM.

Once the procedure is complete, Beyond SIM and check whether you can use the eSIM you purchased.

*For Android OS, the display when checking the IMEI number may differ depending on the device. Please check according to the device you are using.

summary

What did you think?

In this article, we explained the steps to unlock the SIM lock by yourself, but if your carrier has a store, you can actually bring your smartphone in and complete the procedure at the store. It may be possible.

Of course, even in that case, you will need to confirm the IMEI number mentioned above, so it may be easier to confirm it in advance and inform the person in charge.

this article will help those who use Beyond SIM

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[Osaka/Yokohama] Actively recruiting infrastructure engineers and server side engineers!

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The person who wrote this article

About the author

Masahiro Takajo

After graduating from university, I joined a certain system integrator and
started my career as an infrastructure engineer.
He joined Beyond in June 2021 and
currently belongs to the System Solutions Department.
We provide 24-hour, 365-day operation, maintenance, and monitoring services for servers and clouds used by companies that primarily provide web-based services.

The qualifications held are as follows:
① AWS SAA
② Lpic 101