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This solution adopts built-in IC integration technology, directly implanting the unlocking chip into the internal card slot of the phone. No external SIM card sticker is required, allowing locked phones to regain the "unlocked phone" plug-and-play experience.
Compatible Models: iPhone 12/12pm/13/15/15 Plus/16/16 Plus;
Process: Disassemble the original phone's card slot module; Install the built-in MEP IC integrated card slot; Fasten the precision flat cable and tighten the screws.
Effect: The 12 series achieves stable single-card functionality; the 13/15/16 series perfectly enables dual-card dual-standby.
US Version iPhone 14/14 Plus (Native eSIM Models Without Card Slot);
Core Operation: Motherboard underlying circuit activation + physical card slot installation.
Key Short-Circuit Step (Requires Senior Technician Operation);
For US version models, the SIM signal link must be activated through precision short-circuiting.
Operation Standard: Please strictly refer to the microscope real-shot images below to ensure accurate point short-circuiting.
Note to Technicians: Only short-circuit the red-marked area shown in the image; a 0-ohm resistor can be used for direct short-circuiting.
Effect: Transform a phone without a card slot into one with physical dual-card dual-standby. Hardware-level unlocking ensures ultra-stable signals.
Simplified Tutorial for "No Card Slot to Physical Card Slot" Built-in IC Card Slot for Locked iPhone 17
Step 1: Motherboard Short-Circuit (Most Critical)
For US version models with native no card slot, the underlying SIM signal path of the motherboard must be activated first. Please directly perform point short-circuiting according to the physical image below:
Operation Requirements:
Solder joints must be smooth and full (as shown in the image above); ensure no solder bridging, no cold solder joints, and no damage to surrounding small components.
Step 2: Install the Built-in IC Card Slot
After the short-circuit is completed, directly connect the MEP 17 series dedicated built-in IC integrated card slot and test to ensure the signal is normal.
Why Choose This Solution?
No Need for SIM Card Sticker: The chip is built-in, making card replacement as simple as with an unlocked phone. The signal is extremely stable with hardware-level integration, supporting full-band 5G. It can be completed in one operation, saving technicians time and making customers feel at ease.
Common Q&A About Modification
Q: Can the original eSIM still be used after modifying the physical card slot?
A: Dual-Mode Free Switching (Core Feature): Our built-in integrated card slot perfectly retains the original phone's communication logic. Users can not only enjoy the convenience of two physical SIM cards but also install an eSIM chip on the card slot as needed to realize free switching between physical cards and eSIM. Use physical cards when needed, or switch to global eSIM with one click—no mutual interference.
Q: Will this short-circuit operation damage the motherboard?
A: As long as the short-circuit is performed according to the standard solder joint diagram we provide and operated by a professional technician, it is only normal conduction of the underlying circuit and will not affect the service life of other core components.
Q: Will the signal be lost when upgrading the system or restoring the phone?
A: The MEP built-in IC solution has extremely high compatibility. The built-in MEP IC supports OTA upgrades; you only need to follow the latest activation process of MEP.
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