IPhone 6S earpiece speaker replacement

 Before disassembling your iPhone discharge the battery under 25%. A charged lithium-ion battery may easily catch fire and explode, if accidentally infringed. 

• turn off your iPhone
• remove the two 3,4 mm P2 Pentalobe screws next to the Lightning connector
   

 IPhone 6S display is attached to to the device with a thin line of adhesive around edges. If you wish to secure it after the repair, you may purchase it as a replacement part and newly install. If you decide not to replace the adhesive, you should not spot any differences in the functioning of the device. 

• press down the suction cup in the bottom left corner of the display. Make sure that it did not cover the Home button

 Make sure that the suction cup is fully sucked to the scree and seals well.

• pull the suction cup so that you slightly deviate the end of the front panel from the rare housing

 Give yourself enough time and use constant force. 

 If the display holds firmly, heat it up slightly with a hairdryer, to soften the adhesive.

• use a spudger to gently separate the back housing downwards from the LCD assembly, while you continue pulling the suction cup
• use a plastic spudger to gently move in-between the edge of the LCD assembly and rare housing of the iPhone, while you continue gently pulling the suction cup upwards
• once finished, remove the suction cup from the display
   

• remove these screws from the ending of the battery connector
  • first 2,9 mm screw
  • second 2,2 mm screw

• disconnect the battery holder from the iPhone

• use a plastic spudger to gently disconnect the battery connector from its socket on the motherboard

 Make sure, not to disconnect only the battery connector and ripping out the whole connector on the motherboard.

• Remove the following four screws, which secure the front panel cable bracket
  • Three 1,2mm screws
  • One 2,8 mm screws

 Keep track of the screws, as wrong placement during reassembling may cause permanent damage to the motherboard of your iPhone 

• removing the front panel cable bracket from the motherboard

• to disconnect the front-facing camera and sensor cable connector, use a spudger or fingernail

• use the flat end of a spudger to disconnect the touchscreen connector

 When re-connecting the touchscreen connector do not press down in the middle. Press one end of the connector and then the other. Pressing down in the middle may bend the component and cause damage to it. 

 Before disconnecting or re-connecting the cable, make sure that the battery is disconnected

• to disconnect the LCD cable connector, use a spudger or a fingernail
• the display data cable may pop out of the connector while you reassemble your phone
• when turning your phone back on, this may cause white lines or a blank screen. If this happens, simply re-connect the cable
• the best way to get your phone running, is disconnecting and re-connecting the battery connector
   

• separate the LCD assembly from the rare housing

• remove the three Philips screws from the earpiece speaker bracket 
  • two 2,3 mm screws
  • one 1,3 mm screws
• remove the earpiece speaker bracket
   

• lift the front-facing camera from its place on the front panel by using the flat end of a spudger
   

• keep the front-facing camera on the side and remove the dysfunctional earpiece speaker from the phone. 

 follow the steps in reversed order to install a new earpiece speaker