iPhone 12 and 12 Pro Internal SIM Module Reader

SIM Reader for iPhone 12 and 12 Pro: Stable Network Card Reading

The SIM reader is the part responsible for establishing physical contact between the carrier card and the logic board. This original Apple part ensures the correct detection of the mobile network and the reading of contacts stored on the chip. This is the ideal card reader module to restore connectivity on your device.

Technical Specifications

• Part type: Internal SIM card reader
• Compatibility: iPhone 12 (A2172, A2402, A2403, A2404); iPhone 12 Pro (A2341, A2406, A2407, A2408)
• Technical reference: 821-02647-A
• Quality: Original — Pulled

When to Replace

• The phone displays a constant "No SIM Card" message even with the chip inserted.
• Internal pins of the reader damaged, broken or bent after incorrect insertion of the tray.
• "Invalid SIM" message or intermittent reading failure of the card — confirm the diagnosis.

Notes for the Technician

• Test before applying: connect the part to the device and confirm its operation before fixing or gluing it permanently. Thus, if there is any problem, the return or warranty is handled quickly and simply.
• Installation difficulty: Medium.
• The intervention requires dismantling the screen and removing the corresponding protective shield.
• Check the integrity of the FPC connector and the correct alignment of the internal pins before final closure.
• Clean the surrounding area with isopropyl alcohol to avoid residue accumulation in the tray slot.

What Distinguishes This Version

This unit was removed from another phone and maintains the rigorous construction standard required by high-end models. It is the perfect solution for specialized repair shops and technicians looking for maximum mechanical and electrical reliability.

Frequently Asked Questions

Is this reader compatible with the iPhone 12 Mini or 12 Pro Max?

No, this component is exclusive to iPhone 12 and iPhone 12 Pro, with both sharing the same technical reference.

Does replacing the reader solve weak network issues?

If the device does not detect the physical card, it does; if the card is read but does not catch antenna signal, the anomaly lies in another circuit — confirm the diagnosis.

Item tested by Micro Wire before shipment to ensure full operation, with fast shipping from Portugal. If you do not want to repair we can do it for you.