Programmable Blank LTE USIM 4G Card WCDMA GSM – Mini, Nano, Micro from HKCARD Writable Data: ICCID, IMSI, KI, OPC, PIN/PUK, ADM

HKCARD ELECTRONICS CO.,LIMITED (HKCARD) supplies a programmable blank LTE USIM 4G card that supports WCDMA and GSM networks. The card comes in mini, micro, and nano sizes, and it can be written with your own ICCID, IMSI, KI, OPC, and related data. It is designed for telecom operators, test labs, IoT projects, and device manufacturers.

The SIM card already has the COS (Chip Operating System) installed. You do not need to program the COS. You only write the operator data you need.

1. HKCARD Programmable Blank LTE USIM Card Explained

HKCARD offers a blank LTE USIM card that works in 4G FDD-LTE, WCDMA, and GSM devices. The card is sometimes called a programmable SIM card or writable USIM card because you can write network profiles to it with your own SIM programmer.

Common uses include:

• Creating test SIM cards for telecom operators
• Programming IMSI and ICCID for lab networks
• Building IoT devices that need a fixed profile
• Replacing consumer SIM cards in routers, trackers, and modules

The card is supplied blank. If you do not have a programmer or prefer to skip that step, HKCARD can also write the data for you before shipping.

2. HKCARD LTE USIM Card Specifications and Sizes

The HKCARD programmable blank LTE USIM 4G card has the following specifications:

The card is a 3-in-1 design. One card body contains the standard SIM, micro SIM, and nano SIM cutouts. You snap out the size your device needs. This keeps your inventory simple because one SKU covers all three sizes.

3. Writable Data: ICCID, IMSI, KI, OPC, and More

You can write the following data to the HKCARD blank LTE USIM card:

• ICCID – card serial number
• IMSI – subscriber identity for the network
• KI – authentication key
• OPC – operator code for encryption
• PUK – personal unblocking key
• PIN – personal identification number
• ADM – administrative access data

This means the card is ready for operator-side configuration. You can use it in test networks, private GSM/LTE setups, or production devices that need a known profile.

If you already have a data file with these values, HKCARD can write all the data inside the card for you. If you prefer to do it yourself, order the cards blank and use your own SIM programmer.

4. COS Preloaded on HKCARD SIM Cards

The COS is already installed on this card. You do not need to program the COS.

For most users, this means one less step. The card is not a raw chip waiting for a full operating system. It is a USIM card with the operating system already loaded. You only need to write the network data such as ICCID, IMSI, KI, and OPC.

This is convenient for:

• Engineers who only have a basic SIM programmer
• Production lines that need fast card preparation
• Teams that do not want to deal with low-level chip programming

The SIM tool is provided on request if you need help with reading, writing, or verifying the card.

5. How to Order from HKCARD and Contact Details

HKCARD offers two ways to get these cards:

1. Blank cards – You receive the programmable LTE USIM cards with COS preloaded. You write the data yourself.
2. Pre-programmed cards – You send HKCARD your ICCID, IMSI, KI, OPC, and other data. HKCARD writes everything for you and ships ready-to-use SIM cards.

To place an order or ask for samples, contact HKCARD directly:

HKCARD ELECTRONICS CO.,LIMITED
📧 Email: byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp / WeChat: +86 158 1737 2512

When you contact HKCARD, please include:

• Required SIM size: 2FF, 3FF, 4FF, or 3-in-1
• Quantity needed
• Whether you want blank cards or pre-programmed cards
• Your SIM programmer model or software, if you plan to write the cards yourself

HKCARD is a professional SIM card provider and supports both small test orders and larger production runs.

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