HKCARD ELECTRONICS CO.,LIMITED/HKCARD supplies programmable blank SIM cards designed for telecom R&D, custom SIM development, and network testing. This Programmable SIM Card 4G LTE uses rewritable EEPROM so you can update core SIM/USIM parameters through approved SIM card readers and professional tools. It supports 2G/3G/4G (GSM/UMTS/LTE) profiles depending on your configuration and carrier requirements.

These cards are widely used for custom telecom testing and development and can be prepared for projects serving Lebanon, Chile, Brazil, and other South America markets, subject to local network policies and frequency/carrier rules.

1) Product Overview: Writable Programmable Blank SIM Card (2G/3G/4G Compatible)

A programmable SIM (often called a test SIM, developer SIM, or programmable USIM) is built for repeated writing during development. Compared with standard operator-issued SIMs, it offers greater control for lab environments, prototyping, and integration tests.

With HKCARD ELECTRONICS CO.,LIMITED/HKCARD programmable blank SIM cards, you can rewrite data and iterate quickly during verification cycles—useful for telecom product teams, IoT solution providers, and QA labs.

2) Key Features (Built for Engineers and Test Labs)

  • Fully Rewritable EEPROM
    • Supports multiple programming cycles for essential fields (e.g., IMSI, ICCID, OPC, and other SIM/USIM data elements used in authorized testing).
  • Multi-Network Support (2G/3G/4G)
    • Works across GSM (2G), UMTS (3G), and LTE (4G) environments, depending on provisioning and carrier acceptance.
  • High Rewrite Durability
    • Designed for long test programs with frequent updates.
  • 3-in-1 Form Factor
    • Standard/Micro/Nano in one card (breakable cuts), convenient for phones, modems, routers, and embedded test fixtures.
  • Developer-Friendly for R&D
    • Practical for IoT/M2M prototyping, SIM Toolkit (STK) development, device certification prep, and interoperability testing.

Related keywords that match real-world search intent: programmable SIM card, programmable USIM, rewritable SIM, test SIM card, LTE USIM card, SIM programming, telecom testing SIM, IoT SIM development.

3) Technical Specifications

  • Pre-installed COS
  • Supported Networks: GSM (2G), UMTS (3G), LTE (4G)
  • SIM Format: 3-in-1 (Standard / Micro / Nano)
  • Typical Use Cases: SIM development, network testing, M2M communication, IoT prototyping, STK testing
  • Write Cycles: >100,000
  • Data Retention: >10 years
  • Memory / Core
    • 256 bytes internal data RAM
    • 2048 bytes external data XRAM
    • 80K bytes flash (COS area + user data area)
    • High-performance 8-bit HC8051 CPU core

4) Compatibility Notes for Lebanon / Chile / Brazil / South America

Telecom environments vary by operator and regulation. In real deployments, 4G LTE compatibility depends on:

  • Whether the network requires USIM/LTE-specific profiles
  • Carrier authentication policies and provisioning rules
  • APN, PLMN, and profile alignment with the target test scenario
  • Device band support (phone/module/router)

HKCARD ELECTRONICS CO.,LIMITED/HKCARD can ship programmable blank SIM cards for projects targeting Lebanon, Chile, Brazil, and South America, and support common lab requirements for regional testing workflows.

5) Common Use Cases

5.1 Telecom R&D and Device Verification

  • Mobile device bring-up, modem validation, firmware QA, radio/network behavior checks

5.2 IoT / M2M Prototyping

  • Rapid testing on gateways, trackers, POS terminals, smart meters, industrial routers

5.3 SIM Toolkit (STK) and Application Testing

  • Menu logic validation, proactive commands testing, controlled feature verification

5.4 Lab Environments and Training

  • Controlled SIM profile experiments for internal engineering teams and labs

6) Programming & Workflow (High-Level)

Typical engineering setup includes:

  • A compatible SIM card reader/programmer
  • Approved SIM/USIM programming software
  • A defined test profile (parameters aligned with your lab and device requirements)

If you tell HKCARD ELECTRONICS CO.,LIMITED/HKCARD your target SIM size, network type (2G/3G/4G LTE), and test goal, we can recommend a suitable chip/COS option for your workflow.

7) Supply, Packaging, and Delivery

HKCARD ELECTRONICS CO.,LIMITED/HKCARD supports:

  • Sample orders for evaluation
  • Stable volume supply for long-term test projects
  • Secure packing and export shipping options for international customers

For projects requiring consistent batches (important in QA labs), mention your expected annual demand and test plan.

8) Responsible Use

Programmable SIM cards are intended for authorized testing, development, and legitimate telecom applications. Users are responsible for complying with carrier policies and local laws/regulations in Lebanon, Chile, Brazil, and all South America regions.

9) Contact HKCARD ELECTRONICS CO.,LIMITED/HKCARD

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

 

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