Introduction

Agar aapka left speaker blown ho gaya hai ya sound sahi nahi aa raha hai, toh is guide se aap usko replace kar sakte hain.

What You Need

  • Phillips #00 screwdriver

  • T6 Torx screwdriver

  • Spudger (plastic pry tool)

  • Replacement left speaker

  • Anti-static workspace

Step 1 — Remove Lower Case Screws

  • MacBook ko ulta rakho.

  • Niche cover ko hold karte 10 screws hatao:
      • 3 × 14.4 mm Phillips #00
      • 3 × 3.5 mm Phillips #00
      • 4 × 3.5 mm shouldered Phillips #00

  • Jab screws wapas lagao, ensure wo case ke slight curve ke perpendicular ho (seedha down nahi).

Step 2 — Remove Lower Case

  • Vent wali side ke paas fingers se lower case ko body se pry karo gently.

  • Jab mounting clips release ho jaayein, lower case ko lift karke hatao.

Step 3 — Disconnect Battery Connector

  • Spudger ki edge se battery connector ko logic board se upar pry karo.

  • Dono chhote sides se alternatingly pry karna (“walk it out”) is safer, because connector corners bahut delicate hote hain.

Step 4 — Bend Battery Cable

  • Battery cable ko thoda sa bend karo socket se door, taki working ke dauran accidentally reconnect na ho jaaye.

Step 5 — Disconnect Fan Connector

  • Spudger ka flat end use karke fan connector ko logic board se upar pry gently.

  • Aap spudger ko wires ke neeche twist kar sakte ho thoda, to release the connector.

  • Dhyaan rahe: fan socket plastic ka hota hai, toot sakta hai if forced.

Step 6 — Remove Fan Screws

  • Niche fan ko logic board se fix karne wale 3 screws nikaalo:
      • 1 screw — 7.2 mm T6 Torx
      • 2 screws — 5.3 mm T6 Torx

Step 7 — Lift Fan Out

  • Fan ko gently apni recess se nikaalo, ensuring cable kisi part me catch na ho.

Step 8 — Disconnect Right Speaker / Subwoofer Cable

  • Use tip of spudger to pull the right speaker / subwoofer cable out from under the molded retaining finger in the upper case.

  • Then pull cable upward to remove connector from logic board.

Step 9 — Disconnect Camera Cable

  • Camera cable ko logic board se pull karo.

  • Cable ko board ke face ke parallel direction se kheecho — upar mat kheecho, warna damage ho sakta hai.

Step 10 — Disconnect Other Cables

  • Disconnect these four cables using spudger’s flat end (prying their connectors upward):
      • AirPort / Bluetooth cable
      • Optical drive cable
      • Hard drive cable
      • Trackpad cable

Step 11 — Keyboard Ribbon Cable

  • Fingernail ya spudger se retaining flap on the keyboard ribbon cable’s ZIF socket ko flip up.

  • Spudger tip se ribbon cable ko gently socket se pull karo.

  • Agar cable insert karne me tough ho, temporarily tape ka help lo.

Step 12 — Remove Backlight Tape

  • Agar keyboard backlight cable socket par chhota black tape hai, usko dhyaan se peel karo.

Step 13 — Keyboard Backlight Cable

  • Flap ko flip up on its ZIF socket, phir backlight ribbon cable ko gently pull out.

Step 14 — Sleep Sensor / Battery Indicator Connector

  • Spudger ka flat end use karke sleep sensor / battery indicator connector ko logic board se upar pry karo.

Step 15 — Disconnect Display Data Cable

  • Pull the plastic tab on the display data cable lock and rotate it toward the DC-In side.

  • Then pull the display data cable straight out of its socket, in parallel to logic board face — never lift upward, socket fragile.

Step 16 — Remove Heat Sink Screws

  • Remove 9 T6 Torx screws securing the heat sink:
      • 5 screws — 3.6 mm
      • 2 screws — 4.3 mm
      • 2 screws — 7.2 mm
      (In some variants, they may be slightly shorter: 5 × 3.0 mm, 2 × 3.6 mm, 2 × 6.7 mm)

Step 17 — Remove Display Data Cable Retainer

  • Remove these two screws:
      • 1 × 8.6 mm Phillips
      • 1 × 5.5 mm Phillips

  • Remove the display data cable retainer from the upper case.

Step 18 — Peel Microphone from Adhesive

  • Use spudger tip to gently peel the microphone off adhesive holding it to the upper case.

Step 19 — Remove Logic Board

  • With many connectors along its edges, lift logic board from the end near optical drive.

  • Without bending it, maneuver it out of the upper case.

  • Be extra careful about the flexible DC-In connector so it doesn’t snag.

Step 20 — De-route Microphone Cable

  • De-route the microphone cable from its slot molded into the left speaker enclosure.

Step 21 — Remove Tape Covering Speaker Connector

  • Peel off the small piece of black tape that covers the left speaker connector.

Step 22 — Disconnect Left Speaker Connector

  • Use spudger’s flat end to pry the left speaker connector up from its socket on the logic board.

  • Pry from under the wires, not from above.

Step 23 — Remove Left Speaker

  • Left speaker is glued with foam adhesive — carefully pry it off.

  • Remove the left speaker fully from the upper case.

Reassembly

  • To reassemble, just follow these steps in reverse order:

    1. Place left speaker back

    2. Connect speaker connector

    3. Reapply tape if needed

    4. Re-route microphone cable

    5. Install logic board

    6. Re-apply heat sink, data cable retainer, screws

    7. Reconnect display data cable, sensor, backlight, keyboard, trackpad, hard drive, optical, AirPort/Bluetooth cables

    8. Reconnect camera, speaker/subwoofer cables

    9. Install fan, tighten screws, reconnect fan connector

    10. Reconnect battery

    11. Mount lower case cover, tighten bottom screws

  • After that power on and test the left speaker to make sure sound is working properly.

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