This premium replacement screen, offered by LL TRADER, is specifically designed for the iPhone 12 Mini (5.4-inch diagonal). It is intended for repair technicians, specialized workshops, and experienced DIY enthusiasts who wish to restore a device with cracked glass, a broken screen, a display defect (lines, spots, dead pixels), or a touch response issue. This replacement part integrates COF (Chip on Flex) technology and the complete assembly of the Retina LCD module with the touch digitizer, supplied with a repair tool kit, an adhesive waterproof tape, and a screen protector.
Detailed Technical Specifications:
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Brand / Distributor: LL TRADER.
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Part Model: Replacement screen for iPhone 12 Mini (2025 year – compatible revision).
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Screen Size: 5.4 inches (diagonal).
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Screen Type: Retina LCD (Liquid Retina HD technology).
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Resolution: FHD (2340 x 1080 typical pixels for iPhone 12 Mini) – approximately 476 ppi density.
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Touch Technology: Integrated capacitive digitizer.
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Assembly Technology: COF (Chip on Flex) – chip-on-flexible-cable design, improving reliability and reducing bulk.
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Model Compatibility (iPhone 12 Mini): Model numbers A2398, A2399, A2400 (all regional variants of the iPhone 12 Mini).
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Kit Contents:
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1 x LCD screen + digitizer (complete assembly).
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1 x Repair tool kit (screwdrivers, spudger, suction cups, etc.).
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1 x Waterproof adhesive / waterproof seal (replaces the original seal).
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1 x Glass or film screen protector.
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What is NOT included (to be retrieved from the original screen):
Quality and Testing:
Each product is individually checked and tested before shipment to ensure high quality and compliance with performance standards. The screen is delivered ready for installation after transferring the necessary components from the original screen.
COF (Chip on Flex) Technology – Technical Advantages:
COF technology places the driver IC directly on the display module's flexible cable, rather than on the glass. This design offers several advantages:
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Improved mechanical reliability: Reduced stress on solder points.
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Increased durability: Better resistance to shocks and bending.
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Thinner design: Allows for a more compact assembly.
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Maintained image quality: Support for FHD resolution and Retina color fidelity.
Detailed Compatibility:
This screen is strictly for the iPhone 12 Mini (5.4 inches). It is not compatible with iPhone 12, iPhone 12 Pro, or iPhone 12 Pro Max. Before ordering, the user must check their device's model number, available in: Settings > General > About or engraved on the back casing.
Repair Kit Contents – Tools Included:
The provided tool kit allows for self-repair without the need for additional equipment. It typically contains (depending on the exact batch composition):
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Phillips and flat-head screwdrivers suitable for iPhone Pentalobe and Phillips screws.
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Spudger (non-conductive tool for disconnecting flex cables).
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Suction cups for lifting the broken screen.
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Nylon picks or pry tools for opening the casing without damaging the edges.
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Flex cable pliers (depending on version).
Installation Procedure – Critical Points:
This repair is an advanced level (high difficulty). Careful reading of instructions and watching a video tutorial (manufacturer recommendation: search "replace iPhone 12 Mini screen" on YouTube) are essential.
Key Steps to Anticipate:
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Disassembly of the original screen: Unscrew Pentalobe screws, heat the edge (or use a heating tool) to soften the adhesive, gently open the screen with a suction cup and spudger.
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Component transfer: Remove the earpiece speaker, sensor assembly (proximity/light), and metal shield plate from the original screen to the new screen. This step is crucial to preserve call functions (audio) and sensor functions (automatic screen dimming during calls).
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Cleaning and applying waterproof adhesive: Clean the iPhone frame, apply the new waterproof seal provided to restore waterproofing (not equivalent to original but improved compared to no seal).
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Connecting flex cables: Connect the new screen's flexible cables to the motherboard (pay attention to delicate ZIF connectors).
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Testing before final closure: Turn on the iPhone, check the display, touch response, speaker, and sensor functionality.
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Closing and screwing: Close the screen, screw it in, apply the provided screen protector.
Applications and Target Audiences:
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Mobile repair shops: Reliable and economical spare part for after-sales service.
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Independent technicians: Complete kit reducing back-and-forth for missing tools or adhesives.
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DIY individuals: All-in-one solution for home repair, provided prior training or a detailed tutorial has been followed.
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Spare parts resellers: 2025 compatible reference for iPhone 12 Mini.
Important Precautions:
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The absence of the metal shield plate in the kit requires retrieving it from the original screen. Without this plate, protection against electromagnetic interference and mechanical rigidity are reduced.
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Since the sensor assembly (proximity/light) is not included, its transfer is mandatory. An error at this step can lead to the loss of the screen deactivation function during calls (proximity sensor).
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The waterproofing restored by the provided adhesive is inferior to factory waterproofing. The repaired device should not be immersed.
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Using a heating tool or a hair dryer is recommended to soften the original adhesive without breaking the glass.
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The manufacturer strongly recommends consulting a professional video guide before any intervention.
Differences from an original Apple screen:
This screen is a high-quality compatible replacement part, but not Apple certified. Installation may trigger a "Non-Genuine Part" message in Settings > General > About, without affecting general operation. The True Tone function (automatic color temperature adjustment) may be deactivated after replacement, unless a screen series programmer is used (specific tool not included).
Warranty and Support:
The manufacturer (LL TRADER) offers a warranty covering manufacturing defects and performance issues noted before installation. Installation that damages the flex cables or connector may void the warranty. It is advisable to keep the original packaging until proper functioning is validated.
