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    Samsung Galaxy A52s 5G A528B Charging Port Sub-Board Flex K2 PULL-A USB-C Mic Antenna Fix Charging Port JPC MOBILE

    Samsung Galaxy A52s 5G A528B Charging Port Sub-Board Flex K2 PULL-A USB-C Mic Antenna Fix

    $0.00 - $0.00
    $0.00
    $39.50
    $39.50 - $39.50
    $39.50
    SKU Pull-CportK2-A528
    PULL-A · Genuine Samsung Donor Pull · 12-Month Warranty

    Samsung Galaxy A52s 5G A528B Charging Port Sub-Board Flex (K2 Revision) — PULL-A USB-C, Microphone & Antenna Fix

    Genuine PULL-A charging port sub-board pulled from working Samsung A528B donor devices. K2 revision — the later global production standard. Locked fitment to Samsung Galaxy A52s 5G model SM-A528B only. USB Type-C 2.0 port with one MEMS microphone fitted on the daughter board. Includes the antenna spring contacts and the high-density FPC connector. Each board is vendor-tested for fast charging speed and microphone clarity. Functional 10 of 10 with cosmetic grade 9 of 10 minimum. Backed by a 12-month replacement warranty on the sub-board itself. Dispatched from Forest Lake QLD within 2-4 business days.

    Model SM-A528B K2 Revision Only USB-C 2.0 Port Mic + Antenna On Board 12-Month Warranty
    Dispatched From Forest Lake QLD Bench Tested — Charge + Mic Ships 2-4 Days AU-Wide

    Symptoms This Board Fixes On Your A52s 5G

    Phone Won't Charge At All

    Cable is plugged in but no charge icon shows up on screen.

    Charging Port Feels Loose

    USB-C plug wobbles or only charges at one specific angle.

    Microphone Stopped Working

    Callers cannot hear you on phone calls or voice memos.

    Slow Charging Or Trickle Only

    Phone takes hours to charge or never reaches 100 percent.

    Moisture Detected Warning

    Moisture alert keeps blocking charging even after the port dries.

    Charging Cuts In And Out

    Battery icon flips between charging and not charging non-stop.

    12-Month Replacement Warranty

    Vendor-confirmed 12-month warranty on the sub-board against any factory defect.

    Brisbane Technical Hub

    Forest Lake repair workshop. Trade enquiries welcome in store.

    Authenticity Guaranteed

    Genuine Samsung donor pulls — never aftermarket clones.

    Reliable Dispatch

    Standard 2-4 business-day shipping AU-wide. Tracking on every order.

    Jump To

    Why PULL-A Beats Aftermarket Copy Boards

    PULL-A is genuine Samsung silicon — not a copy of the original board.

    Genuine Samsung Silicon

    Pulled from real working A528B donor devices, not factory-cloned.

    Full Charging IC Protection

    Original Samsung charging logic — copies cut these protective ICs.

    Vendor Bench-Tested

    Each board tested for fast-charge speed and microphone clarity.

    Functional 10/10 · Cosmetic 9/10

    No oxidation on the port and no bent FPC connector pins.

    Confirm It's The Sub-Board, Not The Battery

    Run this 8-step check before swapping the board.

    • Try a known-good USB-C cable from a different brand and source.
    • Try a known-good 25W charger or PD wall plug.
    • Clean the port with a wooden toothpick — lint causes 30% of faults.
    • Boot into Samsung diagnostics — dial *#0*# and tap "Sensor".
    • Test the microphone in voice recorder before assuming a board fault.
    • Check for a swollen battery pushing the back glass up off the frame.
    • Look for a "Moisture detected" alert that keeps coming back.
    • Check the board silkscreen — it must say "K2" near the FPC connector.

    Install Notes — Read Before You Open The Phone

    Difficulty: intermediate. Plan 30-45 minutes for a clean swap.

    • Disconnect the battery first — always before any other connector.
    • The back glass is glued — heat to 60°C before suction-cup removal.
    • Use a fresh adhesive ring on the back glass after the repair.
    • Do not over-bend the FPC tail — it will tear at the bend point.
    • Use ESD protection — the charging IC is static-sensitive.
    • Re-seat the antenna spring contacts evenly across all four points.
    • Power on with the battery only first — confirm boot before sealing.
    • Test charging speed and microphone before re-fitting back glass.
    • Refit the SIM tray — the SIM reader is on a separate flex cable.
    • Apply fresh waterproof adhesive to restore the IP67 dust seal.

    Tools You'll Need For The Swap

    Phillips PH00 Driver

    For all internal screws holding the mid-frame in place.

    Heat Pad Or Hair Dryer

    Soften the back glass adhesive at around 60°C.

    Suction Cup + Plastic Pick

    For lifting and slicing the back glass adhesive ring.

    Plastic Spudger

    For prying the FPC connector and antenna contacts.

    Anti-Static ESD Mat

    Protects the charging IC from static damage on the bench.

    Replacement Back Glass Adhesive

    A pre-cut adhesive ring restores the IP67 dust seal.

    Full Specifications

    Brand

    Samsung donor pull

    Part Type

    Charging Port Sub-Board

    Trade Synonyms

    Sub board / Daughter board / Charging flex

    Grade

    PULL-A — genuine donor pull

    Board Revision

    K2 — later global standard

    Compatibility

    Samsung Galaxy A52s 5G only

    Model Number

    SM-A528B (Global / AU / EU)

    Connector Type

    USB Type-C 2.0

    Microphone

    1 × MEMS primary mic on board

    Antenna Contacts

    4-6 spring contact points

    FPC Connector

    High-density board-to-mainboard

    SIM Reader

    Not on this board (separate flex)

    Fast Charge Support

    25W Samsung Super-Fast Charging

    Functional Test

    Charge speed + mic clarity verified

    Cosmetic Grade

    9/10 minimum — no oxidation

    FPC Pin Health

    10/10 — no bent or missing pins

    Charging IC

    Genuine Samsung — full protection

    Vendor SKU

    Pull-CportK2-A528

    Warranty

    12-month replacement warranty

    Install Difficulty

    Intermediate — 30-45 minute job

    Dispatch

    2-4 business days from Forest Lake

    Fitment — What This Board Fits

    Fits This Model And Revision Only

    Samsung Galaxy A52s 5G — SM-A528B K2 Revision Boards Only

    Does NOT Fit These Models Or Revisions

    • Samsung Galaxy A52s 5G K1 revision — different FPC pinout
    • Samsung Galaxy A52 4G (SM-A525F) — different board layout
    • Samsung Galaxy A52 5G (SM-A526B) — different board layout
    • Samsung Galaxy A72 (SM-A725F) — physically larger board shape
    • Samsung Galaxy A72 5G (SM-A726B) — different board pinout
    • Samsung Galaxy M52 5G (SM-M526B) — different sub-structure
    • Samsung A528N (Korea) — different antenna tuner frequencies
    • Samsung A528E (India) — different antenna tuner frequencies
    • Samsung A528U (USA carrier) — different antenna tuner frequencies
    • K1 mismatch causes "no service" or dead microphone faults

    Genuine PULL-A vs Cheap Aftermarket Copy

    Side-by-side. Why genuine PULL-A is the safer swap for the A52s 5G.

    Genuine PULL-A K2 Sub-Board

    • Pulled from working Samsung A528B donor devices
    • Full Samsung charging IC with overcurrent protection
    • 25W Samsung Super-Fast Charging speed restored
    • Vendor-tested for both fast charge and mic clarity
    • Antenna contacts spring back to factory tension
    • Functional 10/10 with no bent FPC pins
    • 12-month replacement warranty on the sub-board
    • Bench inspected before dispatch from Forest Lake

    Cheap Aftermarket Copy

    • Factory clone — not real Samsung silicon
    • Charging IC protection circuits are cut to save cost
    • Caps fast charging speed at 5W or refuses to fast-charge
    • Mic noise gate fails — callers hear hissing or echo
    • Antenna springs lose tension after the first install
    • Bent or shallow FPC pins cause intermittent contact
    • No vendor warranty — DOA returns refused
    • Risk of damaging the A52s mainboard charging line

    Bring It In For Workshop Fitting

    Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078

    Brisbane Technical Hub
    Workshop fitting available at our Forest Lake counter.
    Authenticity Guaranteed
    Genuine donor pulls from verified Samsung devices.
    Reliable Dispatch
    Tracked delivery Australia-wide.

    Shipping And Payment

    • Dispatch: 2-4 business days from Forest Lake QLD
    • Brisbane Metro: 1-3 business days after dispatch
    • Sydney and Melbourne: 3-5 business days after dispatch
    • Perth and Regional QLD: 5-7 business days after dispatch
    • Tracking number issued on every order
    • Pickup available from Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078

    Pay your way — Afterpay and Klarna available at checkout.

    Buyer FAQs

    +How do I know if my A52s is K1 or K2 revision?

    Open the back glass and look at the existing sub-board.

    The revision is silk-screened on the PCB near the FPC connector.

    It will read "K1" or "K2" in small white print on the green PCB.

    +What happens if I install K2 into a K1 phone?

    The phone will likely charge but show "No Service" on the network.

    The microphone may also stop working on calls and voice notes.

    K1 and K2 use a different FPC pinout for antenna and mic signals.

    +What does PULL-A grade actually mean?

    PULL-A is genuine Samsung silicon pulled from working donor devices.

    Functional rating is 10 of 10 with cosmetic grade 9 of 10 minimum.

    Each board is vendor-tested for fast charge and microphone clarity.

    +Will this also fix my microphone on calls?

    Yes. The primary call microphone sits on this charging sub-board.

    Replacing the board replaces the microphone in the same swap.

    Test the mic in voice recorder before sealing the back glass.

    +Does it fit the A52 4G or A52 5G as well?

    No. The A52s 5G uses a unique board layout from the A52 series.

    A52 4G is SM-A525F and A52 5G is SM-A526B — different parts.

    Order the matching A525F or A526B board for those models.

    +Will it support 25W Samsung Super-Fast Charging?

    Yes. Genuine Samsung charging IC handles full 25W fast charging.

    Cheap aftermarket copies cap charging at 5W or block fast mode.

    Use a genuine Samsung 25W PD wall plug for the full speed.

    +Does this board include the SIM tray reader?

    No. The SIM tray reader is on a separate flex inside the A528B.

    This board only carries the USB-C port, microphone and antenna.

    Refit your existing SIM tray flex during the install.

    +How hard is the install for a DIY repair?

    Intermediate difficulty — plan 30 to 45 minutes for a clean swap.

    Back glass removal needs heat to soften the factory adhesive.

    Bring it to our Forest Lake workshop if you prefer professional fitting.

    +What does the 12-month warranty cover?

    Covers any factory defect on the sub-board for 12 months.

    Does not cover physical damage from drops or liquid after install.

    Warranty void if FPC pins are bent during a DIY install attempt.

    +Do trade workshops get bulk pricing?

    Yes. Trade workshops and refurbishers can request bulk pricing.

    Drop in to the Forest Lake workshop counter for a trade quote.

    Bulk PULL-A donor stock is sourced through our verified suppliers.

    Browse Related Categories

    Quality Seal

    JPC Mobile Promise

    Genuine PULL-A K2 charging port sub-board for Samsung Galaxy A52s 5G A528B. Backed by a 12-month warranty.

    Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078

    Brisbane AU Dispatch Genuine Samsung Pull 12-Month Warranty Bench Tested

    Payment Options

    We offer multiple convenient payment options for your repairs and accessories purchases. Pay with cash, debit/credit card, or interest-free Buy Now Pay Later options.

    Afterpay Zip Klarna PayPal
    Learn more about our Buy Now, Pay Later options →

    Shipping & Processing Information

    Processing Time

    All orders require 2-4 business days for processing, regardless of shipping method.

    This includes order verification, picking, packing and preparation for dispatch.

    You will receive tracking information for all shipped orders and notification when pickup orders are ready for collection.

    Shipping Methods

    Standard: 3-7 business days in transit after processing

    Express: 1-2 business days in transit after processing

    Express shipping only affects delivery time once dispatched, not processing time.

    Express shipping does not expedite the 2-4 business day processing time.

    Samsung Galaxy A52s 5G A528B Charging Port Sub-Board Flex K2 PULL-A USB-C Mic Antenna Fix Charging Port JPC MOBILE

    Samsung Galaxy A52s 5G A528B Charging Port Sub-Board Flex K2 PULL-A USB-C Mic Antenna Fix

    $39.50