The guide to upgrading Gevey SIM aims to fix basic errors on Locked iPhones, especially the error of the device not recognizing the SIM card. By upgrading the Gevey SIM, you can transform your Locked iPhone into an International iPhone, using it stably at a low cost.
Can you upgrade iOS with a Gevey SIM?
Compared to International iPhones, Locked iPhones are identical in origin, quality, and design. However, Locked iPhones only work with a specific SIM card provided by a carrier. Therefore, Vietnamese users of Locked iPhones always have to use Gevey SIM - a device considered as the key to unlock Locked iPhones, turning them into International iPhones.
The guide to upgrading Gevey SIM helps you use your main SIM card normally on Locked iPhones by inserting the Gevey SIM along with the main SIM card into the device.
Gevey SIM has a different design from regular SIM cards. It is a microchip, resembling a small piece of copper. To make the Gevey SIM work on a Locked iPhone, you need to place the Gevey SIM on top of the main SIM card and then use the main SIM card on the Locked iPhone as usual.
Guide to Upgrading Gevey SIM on iOS
Guide on how to upgrade Gevey SIM
Upgrading Gevey SIM involves using the Gevey SIM to activate unlocking for Locked iPhones. You don't just need the Gevey SIM and the Locked iPhone to upgrade the Gevey SIM.
Hallo will guide you on how to upgrade Gevey SIM for use on Locked iPhones below.
Preparation:
One Locked iPhone
One International iPhone
One main SIM card in use
One Gevey SIM
Note: The iPhone must be upgraded to the latest iOS version.
First, insert the Gevey SIM and the main SIM card into the International iPhone, making sure to place the Gevey SIM on top of the main SIM card. After starting up the device, go to the mobile section and select the Application section of the SIM as shown below.
You continue to 3. Input Activation ICCID as shown below.
Write down this number 89014104279605344274 and then select send.
Next, select option 7: 3G/4G ICCID Mode as shown below.
After this step, the International iPhone will notify you that you have successfully set up (upgraded) the Gevey SIM and prepare to restart the iPhone. You press accept.
In this way, your Gevey SIM has been successfully upgraded. After this step, remove the Gevey SIM and the main SIM card and insert them into your Locked iPhone.
Note: In many cases, you may have successfully upgraded the Gevey SIM but when you insert it into the Locked iPhone, it still does not recognize the SIM card, possibly due to the iOS version being used on the iPhone being faulty.
This is a common issue currently. When you use an iOS version that is not compatible with the SIM, the iPhone will also not recognize the SIM card. Therefore, Hallo has advised you from the beginning that you need to update the iPhone to the latest iOS version. The latest version is the version that the provider fixes the existing bugs in the old version. When the iPhone is on the latest iOS version, you will avoid unwanted errors with the Gevey SIM.
Above, Hallo has provided the simplest guide to upgrading Gevey SIM for you. Vietnamese people can own high-end iPhones at a cheap price and guaranteed quality, providing decent functionality for users when combined with the Gevey SIM. Please continue to follow the articles on Hallo.co for more information about cheap Japanese data SIMs.
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