Samsung Galaxy S7 Assembly instructions

Galaxy S7
Glass/Lcd
REPAIR GUIDE
Version 1
2016 Edition

RiAna Soto
Repair Training Specialist
[email protected]
Samsung Galaxy S7 Glass/LCd REPAIR
GUIDE

FOR EVERY REPAIR
MAKE SURE TO COMPLETE, INITIAL,
AND HAVE CUSTOMER SIGN THE CELLAIRIS
REPAIR LIABILITY WAIVER FORM

PRE-REPAIR DEVICE CHECK-IN

•Philips screwdriver
•Spudger
•Tweezers
•Isesamo
•Pentalobe screwdriver
•Magnetic Mat
•Samsung galaxy s7 Digitizer/LCD
TOOLS NEEDED

•Always operate the heat gun on the lowest setting.
•Keep face, hands, hair, and clothing away from the air stream.
•The air nozzle also becomes extremely hot. Never grab the heat gun by the nozzle.
•Never operate the heat gun by laying it on its side on a table. It should be firmly grasped in one hand
at all times during usage.
•Never operate near flammable or explosive liquids and vapors. Cleaning supplies and the 3M #94
Primer are of concern. Make sure fumes are absent from the work area before operating the heat gun
•The heat gun nozzle should never get closer than 2“ to the object being heated.
•Keep heat gun moving. Never stay in one spot.
HEAT-GUN PRECAUTIONS

•Magnetic Pad: During the repair, you will be utilizing a magnetic pad to organize the plethora of
differing screws that you will be pulling out of the iPhone 6S. Below is a list of several internal
components of the iPhone 6S that should never be placed on the pad, or you risk damaging the
hardware or erasing client data:
•LCD/Digitizer Assembly
•Cameras
•Motherboard
•Battery
•Speaker
ADDITIONAL PRECAUTIONS

•Power on/off: To avoid any damage to the hardware during the repair, it is best to have the device
powered off until you can get to and disconnect the battery.
•Battery: Never unplug any flex cables unless the battery has been completely disconnected to avoid
frying your hardware. Do not plug the battery back until all cables have been reconnected.
•Release Screws: Apply pressure on the screw and twist counterclockwise to initially loosen it, then
lighten the pressure and continue twisting until the screw is gently released. Make sure you have
properly sized screwdrivers available for the repair.
•Pin Connectors: extremely fragile and must be plugged or unplugged with extreme caution.
•Battery connector: held down by light adhesive and solder. If not cautious it will come off the
motherboard. Very time consuming to be repaired. Do not break it in the first place.
•Motherboard: small surface mount components can be easily damaged if they are nicked by the
spudger. Always take your time and never touch the surface of the motherboard.
ADDITIONAL PRECAUTIONS

STEP 1 •Power off device.
•Remove sim card.
Disassemble the device
Tools: sim card ejector

STEP 2 •The next step requires you to heat around the frame
of the back glass. Now when you heat around the
frame do it in a constant movement do not let it rest
in just one area.
•You will need to use some type of cards or thin picks
so slide underneath each part you release from the
adhesive so it doesn’t stick back down.
•Take the isesamo or painters knife and slide it in
between where the glass and frame meet. You want
to slide it around the frame if it seems the adhesive
has cooled down heat around the frame again. This
process you will continue as you try to loosen up the
whole back glass.
Disassemble the device
Tools: isesamo or painters knife, heat
gun, plastic cards

STEP 3 •Now that the back glass is removed.
•Unscrew the twelve (12) Philips screws.
•Peel back black tape to expose the battery but only peel tape
up slightly do not remove.
•Remove the three pieces of the black plastic back housing to
expose the motherboard. Use plastic spudger or your hands.
Disassemble the device
Tools: Spudger, fingers,
Philips screwdriver

STEP 4
Disassemble the device
Tools: spudger, tweezers
•Disconnect all flex
cables

STEP 5
Disassemble the device (step 4.
Cont.)
Tools: spudger, tweezers

STEP 6
•Remove the motherboard once all components are disconnected.
•Heat the front glass display using a constant motion around the
edge of the glass then use your painters knife or metal pry tool to
slide in between the frame of the phone and LCD. Take the tool and
slide the tip in between glass and frame of device.
•As you slide in between use pry tool and flex from left to right to
help separate the adhesive.
•Pay close attention to the bottom back and menu flex cables!
Disassemble the device
Tools: spudger, tweezers,
Isesamo or painters Knife Tips: refer to step 7 before
starting step 6

STEP 7
•It’s important heat the bottom area of glass display near home button because those flex cables
are adhered to the glass. We do not want tare these cables so it’s important to look underneath
the lcd to help separate those cables.
•Now that the cables are clear you will be able to pull original assembly off the frame.
Disassemble the device
Tools: Heat gun, spudger,
isesamo or painters Knife

STEP 8
•Once the full assembly is removed from the frame we can clean the
frame of device. Remove any remaining glass shards or old adhesive.
Outlined with red arrows use isesamo or, any scraping tool to clean
the frame. PDI pads are good to use for the purpose of caked up
adhesive.
•The disassembly done properly should be separated like such.
Tools: isesamo, PDI pads, Fingers
Disassemble of Device

STEP 1
•After, the old assembly is removed and frame is clean it is now time to put new assembly on device.
•Start by test fit the new Lcd by making sure the cable fits on motherboard and doesn’t appear to have tension pulling the
cable. Once the new assembly is adhered to frame put motherboard back on.
•Reconnect all flex cables as well as antenna cables. Reconnect Battery.
•Place rear backing back over the motherboard this will be a three piece process.
Tools: spudger, Fingers
Reassemble of Device

STEP 2
•Now that the rear housing is back on it is now time
to screw down all twelve (12) Philips screws with a
Philips screw driver.
Tools: Philips screwdriver, Fingers
Reassemble of Device

STEP 3
•Next, put the back glass back on now if it’s the original glass you might need to add a thin layer of
adhesive around the frame of the back glass. Outlined with the white shade of tape around the frame. If
it’s a replacement back glass and doesn’t come with adhesive on it definitely add some around the
frame. Then apply back glass to phone. Smooth around the back with your hands to help seal.
•Power on device and do post test.
Tools: Fingers

•Run through each of these test for the post test.