Switch SIM or Usim cards

››Lock your SIM or USIM card

You can lock your device by activating the PIN supplied with your SIM or USIM card.

In Menu mode, select Settings → Security. Select PIN lock.

Enter the PIN of your SIM or USIM card and select Done.

Once the PIN lock is enabled, you must enter the PIN each time you turn on the device.

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If you enter an incorrect PIN too many times, your SIM or USIM card will be blocked. You must enter a PIN unlock key (PUK) to unblock the SIM or USIM card.

If you block your SIM or USIM card by entering an incorrect PUK, bring the card to your service provider to unblock it.

Once you insert two SIM or USIM cards, you can switch back and forth between each card.

To switch between SIM or USIM cards, press [] except for when the device is sending or receiving messages or data from the network.

››Activate the SIM or USIM card

In Menu mode, select Settings → SIM cards

management → Network.

Select the SIM or USIM card you want to activate. Select Save.

Getting started

GT-C6712LKACYO, GT-C6712LKAXSK, GT-C6712RWAAFG, GT-C6712LKAABS, GT-C6712RWAMID specifications

The Samsung GT-C6712 series, which includes models such as GT-C6712LKASER, GT-C6712LKASEB, GT-C6712RWASER, GT-C6712RWASEB, and GT-C6712XKASER, represents a blend of functionality and practicality in the realm of feature phones. Designed with a focus on user-friendly interfaces and essential mobile capabilities, these devices cater to a diverse demographic, from first-time smartphone users to individuals seeking a reliable secondary device.

At the core of the GT-C6712 series is its dual SIM functionality, which allows users to manage two separate numbers on a single device. This feature is particularly appealing to those who want to keep personal and work contacts separate or who travel frequently and need to switch between local and home networks.

One of the most noteworthy attributes of the GT-C6712 models is their compact design, making them comfortable to hold and easy to carry. With a sturdy build quality, these devices can withstand daily wear and tear, appealing to users who prioritize durability. The keypad is ergonomically designed for easy typing, ensuring quick messaging and efficient dialing.

The display, while modest, offers vibrant colors and satisfactory clarity for viewing messages, images, and notifications. Browsing through basic content is smooth, aided by a user-friendly interface that simplifies navigation.

Multimedia capabilities are also a highlight of the GT-C6712 series. Equipped with a camera, these models allow users to capture memories and share moments effortlessly. The built-in media player supports various audio and video formats, providing entertainment on the go. The expandable storage options via microSD cards ensure that users have enough space for their music, videos, and essential files.

Connectivity features include Bluetooth for easy file sharing and a reliable internet browsing experience through WAP. Social media applications are pre-installed or can be downloaded, allowing users to stay connected with friends and family.

In summary, the Samsung GT-C6712 series, including the various models identified, combines practicality and functionality. With dual SIM capabilities, a durable design, user-friendly interface, and multimedia features, these devices meet the essential needs of modern mobile users, making them a popular choice in the feature phone market.