HKCARD: Programmable 5G SA & 4G LTE SIM Cards
15+ years as SIM card manufacturer. Re-programmable USIM/LTE/5G cards with writable IMSI, Ki, OPc. Bulk orders, white label MVNO, IoT solutions. pySim compatible. Global shipping.
programmable-writable-sim-cards-5g-4g-lte-manufacturer-hkcard
| HKCARD programmable 5G SA USIM cards in 2FF 3FF 4FF nano form factors for network testing and IoT deployment | |
| Engineer programming writable IMSI and Ki keys on blank white HKCARD SIM using pySim PC/SC tool |
- Writable IMSI SIM Cards Free of Carrier Lock? HKCARD Delivers True Re-Programmability
- 5G SA SIM Card Ready: Programmable 3GPP R16 Cards for Private Networks & IoT
- Sysmocom Alternative? Get SJA2/SJS1-Compatible SIMs Direct from HKCARD Factory
- White Label MVNO SIM Cards: Custom 4G/5G Solutions with Blank SIM Card Airtel Profiles
- IoT Deployments Demand Flexibility: HKCARD’s Re-Programmable SIM Cards Solve It
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HKCARD ELECTRONICS: Precision-Engineered Programmable SIM Cards for 5G, 4G LTE & Global IoT Deployments
For over 15 years, HKCARD ELECTRONICS CO., LIMITED has powered innovation across the mobile phone SIM cards industry. As a certified SIM card manufacturer with ISO 9001 facilities, we deliver re-programmable (not one-time burn) SIM cards trusted by telecom engineers, MVNOs, IoT developers, and network labs in 90+ countries.
Unlike locked carrier SIMs, our programmable SIM cards using PC/SC tools (e.g., pySim) grant full control over authentication parameters—enabling rapid testing, private network builds, and scalable deployments.
Total Parameter Control: Writable Fields for Real-World Engineering
Our USIM / LTE SIM Cards (not GSM-only) support deep customization via standard tools:
| Parameter | Technical Value | Use Case |
|---|---|---|
| Writable IMSI SIM Cards | Full IMSI injection | Core network testing (Open5GS, Amarisoft) |
| Writable Ki SIM Cards | 128-bit key programming | Authentication validation |
| Writable OP/OPc SIM Cards | Milenage/TUAK configuration | Algorithm compliance testing |
| Writable ICCID/SPN/MNC/MCC | Network identity customization | MVNO branding, roaming tests |
| SUCI SIM Card | 5G privacy-compliant identifier | 3GPP R16 SA network compliance |
💡 Engineers searching for “writable imsi sim cards free” from unreliable sources: HKCARD provides factory-direct quality with documented re-writability cycles (>10,000).
Future-Proof Network Support: 5G SA to Legacy Systems
✅ 5G & 4G Solutions
- Programmable 5G NR 3GPP R16 SA 5G SIM Card: Full Standalone support with SUCI, network slicing
- 5G SA 128K SIM / 512K SIM: Optimized memory for complex profiles
- 4G LTE/WCDMA blank cards: VoLTE-ready, multi-network compatible
- Multi network 4G VoLTE SIM card: Roaming validation across carriers
✅ Specialized Formats
- NFC SIM / SIM card NFC: Secure element for mobile wallets (
sim wallet nfc) - Java SIM Card: JCOP-compliant for applet development (
sim java) - CDMA SIM card / RUIM card / UIM card: Legacy network support
- Blank eSIM: Profile-ready for remote provisioning
Physical Flexibility: Form Factors & Customization
All cards ship in half simcard lte trio format:
🔹 2FF / 3FF / 4FF SIM Cards (Mini/Micro/Nano)
🔹 Nano-USIM: Modern smartphone/IoT module ready
🔹 White SIM Card / White SIMs: Blank surface for thermal printing
🔹 Dummy SIM Card / Fake SIM: Mechanical testing (non-functional)
🔹 Parking SIM cards: Smart city infrastructure validation
Memory Options: 128K SIM, 256K SIM, 512K SIM (e.g., 128K USIM for cost-sensitive IoT)
Direct Alternatives to Sysmocom & Market Gaps
| Your Need | Sysmocom Equivalent | HKCARD Solution |
|---|---|---|
| High-security Java Card | SysmoISIM-SJA2 / SJA5 | HKC-SJA2-ALT (SJA2-compatible) |
| Standard USIM | SysmoUSIM-SJS1 | HKC-USIM-128K |
| Bulk MVNO Deployment | N/A | White label MVNO SIM cards |
| Indian Market Testing | N/A | Blank SIM card Airtel profiles |
We solve critical gaps:
- ✦ Offbrand SIM quality concerns → Factory-direct QC
- ✦ Bulk SIM lead time delays → 7-day dispatch for 10K+ orders
- ✦ SIM personalize tools complexity → Free pySim configuration guides
Industry Applications Driving Global Adoption
| Sector | HKCARD Solution | Keywords Served |
|---|---|---|
| MVNO Launch | White label SIM cards + branding | white label mvno sim cards, sim card wholesale |
| IoT Deployment | IoT/Evaluation SIM Cards | parking sim cards, empty sim card, sim blank |
| Network Testing | USIM test solution kits | 4g volte tester, dummy sim card airtel, usim test solution |
| R&D Labs | Re-programmable cards + docs | sim card creator, sim programming, sim personalize tools |
Frequently Asked Questions (FAQ)
Q1: Are HKCARD SIMs truly re-programmable (not one-time burn)?
✅ Yes. All cards support unlimited writes to IMSI, Ki, OPc via PC/SC tools like pySim. EEPROM endurance: >10,000 cycles.
Q2: Do you supply “writable imsi sim cards free” samples?
We offer low-MOQ evaluation kits (10–100 pcs). Contact sales for sample pricing—no “free” cards, but transparent factory pricing.
Q3: What is “suci sim คือ” and do you support it?
“SUCI” (Subscription Concealed Identifier) is a 5G privacy feature encrypting IMSI over air. Our 5G SA SIM card fully supports SUCI per 3GPP R16.
Q4: Are your cards compatible with sysmoISIM-SJA2 workflows?
Yes. Our HKC-SJA2-ALT cards mirror SJA2 file structure and are pySim-compatible. Ideal sysmocom sim card alternative.
Q5: Can I get blank SIM cards for Airtel India testing?
Absolutely. We provide blank sim card airtel-compatible profiles (MCC/MNC pre-configured) for Indian network validation.
Q6: What memory size is best for IoT?
128K USIM is optimal for most IoT (LTE-M/NB-IoT). For Java applets, choose 256K/512K SIM.
Q7: Do you sell dummy SIM cards for retail displays?
Yes. Dummy SIM card (non-functional plastic) and fake sim variants available in all form factors.
Q8: Are NFC SIM cards available for mobile wallets?
Yes. Our SIM card NFC solutions support HCE and secure element modes for sim wallet nfc applications.
Q9: What’s the MOQ for white label MVNO SIM cards?
MOQ starts at 1,000 pcs for custom printing. Bulk SIM orders (10K+) receive volume pricing.
Q10: How quickly can I get cards for urgent testing?
In-stock items ship in 3 business days. Custom orders: 7–10 days. Global DHL/FedEx delivery.
Why Global Engineers Choose HKCARD
✨ 15+ Years Manufacturing Excellence – Direct factory control, no middlemen
✨ True Re-Programmability – Not “burn-once” cards sold by competitors
✨ pySim & Open-Source Ready – Full documentation + toolchain support
✨ Global Compliance – ETSI, 3GPP, GSMA standards adherence
✨ Dedicated Technical Support – Engineers respond within 4 business hours
📩 Contact HKCARD ELECTRONICS Today
Ready to deploy flexible SIM solutions?
HKCARD ELECTRONICS CO., LIMITED
📧 Email:byronhan@cardmfg.com
🌐 Website: https://www.cardmfg.com/
📱 WhatsApp/Wechat: +8615817372512
📍 HQ: Shenzhen, China | Global Shipping
Request your evaluation kit today. Let HKCARD power your next network innovation.
