SAM19 SM8550 SM8650 CPU RAM PM8550BH PM8550VE 77098B WCN7851 SDR875 58080 SDR753 BGA Reballing Stencil For Samsung S23 S24 ULTRA

Original price was: ₹250.Current price is: ₹149.

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Original price was: ₹250.Current price is: ₹149.

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  • User Guide

    User Guide

    Please read the manual before use.

    1. Introduction & Workspace Setup

    This section sets the foundation for a safe repair environment. Before a single tool touches a phone, the workspace must be prepared to protect both the technician and the sensitive electronics.

    • Electrostatic Discharge (ESD) Safety: Instructions on grounding yourself using an ESD wrist strap and working on an anti-static mat to prevent frying microchips with static electricity.

    • Safety Gear: Protocols for wearing safety glasses (critical when prying shattered glass) and working in a well-ventilated area (crucial for adhesive fumes and soldering smoke).

    • Lighting and Magnification: Recommendations for high-intensity desk lamps and digital microscopes or magnifying visors for viewing microscopic components.

    2. Disassembly & Opening Tools

    The most physically risky part of mobile repair is opening the device without cracking the glass screen or ripping delicate internal ribbon cables.

    • Thermal Tools (Heat Guns & Heat Pads): Instructions on setting precise temperatures (typically 80°C to 100°C) to soften heavy factory adhesives without damaging the display.

    • Suction & Leverage Tools: Proper placement of heavy-duty suction cups and screen prying fixtures to safely create an initial gap.

    • Separation Media (Plastic Picks & Spudgers): Techniques for slicing through glue lines using plastic opening picks without inserting them too deeply into the frame.

    3. Fastener & Component Manipulation

    Modern smartphones use dozens of tiny, highly specialized screws and brackets to hold internal shields in place.

    • Precision Driver Identification: A breakdown of specialized micro-bits, detailing exactly when to use Pentalobe (iPhones), Tri-point/Y-type (internal Apple shields), Torx/Torx Security (Android devices), and standard Micro-Phillips.

    • Organization Systems: Guidelines for using magnetic project mats or screw organizing trays to map out screw locations, preventing the catastrophic error of “long-screw damage.”

    • Gripping & Placer Tools: How to utilize straight and curved ESD-safe tweezers to safely disconnect fragile ZIF (Zero Insertion Force) and coaxial cable connectors.

    4. Diagnostics & Testing Equipment

    This section transitions the user from basic mechanical teardowns to logical troubleshooting when a phone won’t turn on or charge.

    • Digital Multimeter (DMM): Step-by-step instructions on setting up the meter for DC voltage testing (checking battery and charging port output) and continuity/diode mode (hunting for short circuits).

    • DC Power Supply: How to boot a phone motherboard without a battery attached, interpreting current draw (Amperage) to diagnose power management failures.

    • USB Ammeter / Tester: Utilizing an inline USB safety tester plugged into the charging block to instantly diagnose if a phone is pulling normal current ($1A$ to $2A$) or completely dead ($0A$).

    5. Micro-Soldering & Component Level Repair

    For advanced users handling board-level fixes like swapping out charging ports, audio IC chips, or FPC connectors.

    • Soldering Iron Stations: Temperature calibration tips, tip selection (chisel vs. conical), and maintenance/tinning procedures.

    • Hot Air Rework Stations: Managing the delicate balance of air flow and temperature to safely desolder multi-pin components without blowing adjacent surface-mount resistors off the board.

    • Chemical Consumables: Proper application of rosin flux (to clean joints and fluidize solder), solder wick (braided wire to remove old solder), and low-melt solder alloys.

    6. Adhesives, Cleaning & Reassembly

    The final step is cleaning up the internal cavity and sealing the device back up to its original structural integrity.

    • Chemical Cleaners: Safe usage of 99% Isopropyl Alcohol (IPA) to dissolve old glue residues, flux oils, and clean mild liquid damage.

    • Liquid Adhesives vs. Tape: Instructions on applying specialized acrylic glues (like B-7000) versus applying precision-cut double-sided adhesive gaskets.

    • Camping and Curing: Utilizing specialized display repair clamps to apply even, steady pressure while the new adhesives cure over 15 to 30 minutes.

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SAM19 SM8550 SM8650 CPU RAM PM8550BH PM8550VE 77098B WCN7851 SDR875 58080 SDR753 BGA Reballing Stencil For Samsung S23 S24 ULTRA

It looks like you are diving deep into the hardware architecture of the Samsung Galaxy S23 and S24 Ultra series. This list covers the core chipset, power management, and RF (radio frequency) components that make up the “brain” and “nervous system” of these flagship devices.

Since you’re looking for a reballing stencil or repair guide, here is the breakdown of what each of these components actually does.

Samsung S23 & S24 Ultra Chipset Specifications

Component Code Component Type Associated Device(s) Function / Description
SM8550 CPU (SoC) Galaxy S23 Ultra Snapdragon 8 Gen 2: The main processor.
SM8650 CPU (SoC) Galaxy S24 Ultra Snapdragon 8 Gen 3: The latest high-performance processor.
RAM LPDDR5X S23 / S24 Ultra High-speed memory, often “sandwiched” (PoP) on top of the CPU.
PM8550BH Power IC (PMIC) S23 / S24 Series Main power management, specifically for battery charging and system rails.
PM8550VE Power IC (PMIC) S23 / S24 Series Secondary power management for specific voltage regulation.
77098B Power Amplifier S24 Ultra High-band power amplifier for 5G/LTE signals.
WCN7851 Connectivity IC S24 Ultra Wi-Fi 7 & Bluetooth 5.4 combo chip.
SDR875 RF Transceiver S23 Ultra Handles the conversion of radio waves to digital signals (5G).
SDR753 RF Transceiver S24 Ultra The updated RF transceiver for the S24 series.
58080 RF Module S23 / S24 Series Front-end module for signal filtering and switching.

Reballing & Repair Context

If you are using a “SAM19” stencil, it is designed to be a “multi-purpose” or “AMAOE” style plate that aligns specifically with the BGA (Ball Grid Array) patterns of these chips.

  • BGA Pitch: These chips use extremely fine pitches (often 0.3mm to 0.4mm).

  • Stencil Material: High-quality stencils for these models are usually “Black Steel” or “Japanese Steel” to prevent warping under the high heat required for lead-free solder.

  • The “Sandwich” Challenge: Remember that the RAM is often layered directly on top of the SM8550/SM8650. Reballing requires precise heat control to avoid damaging the CPU while removing the RAM.

Key Differences for Technicians

  • S23 Ultra (SM8550): Uses the SDR875 transceiver. If you’re seeing signal issues, this is your primary target.

  • S24 Ultra (SM8650): Moves to the SDR753. Note that the power management configuration (PM8550 series) is largely shared between the two, making parts of the stencil interchangeable.

SAM19 SM8550 SM8650 CPU RAM PM8550BH PM8550VE 77098B WCN7851 SDR875 58080 SDR753 BGA Reballing Stencil For Samsung S23 S24 ULTRA

Weight 0.05 kg

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