Samsung Galaxy S8 User manual

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Rev1.0
Disassembly & Assembly Guide
[ Galaxy S8 ]
HHP Global CS team
Rev 1.3
This material is a property of Samsung Electronics Co., Ltd. Any unauthorized use of this material can be punished
under applicable International and/or domestic law.
Confidential

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Rev1.0
Date Rev Comments Pages
2017.03.24 1.3
-
Initial version
Revision History

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Rev1.0
Notice
This guide is intended solely for the Samsung Electronics internal training and may contain
trade secret, industrial technology or privileged and confidential information otherwise
protected under applicable law including the Unfair Competition Prevention and Trade Secret
Protection Act. Any unauthorized dissemination, distribution, copying of use of the information
contained in this guide is strictly prohibited and subject to legal action.
All functionality, features, specifications and other product information provided in this
document including, but not limited to, the benefits, design, pricing, components, performance,
availability, and capabilities of the product are subject to change without notice or obligation.
Samsung reserves the right to make changes to this guide and the product described herein,
at anytime, without obligation on Samsung Electronics to provide notification of such change.

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Contents
1. Structure comparison of S7 edge and S8
2. Disassembly
- Pre-requisite
- Parts for disassembly
3. Assembly
- Pre-requisite
- Non-reusable parts for reassembly
- Parts for assembly

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Structure comparison
of S7 edge and S8

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S7 edge S8
Front Ass'y Front Ass'y (include receiver)
Display
- The S8 display also cannot be separated from the bracket as same as S7 edge.
- In addition, the battery & receiver cannot be reused.
- So, when the front ass’y is changed to the new one, the battery should be ordered together.

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S7 edge S8
3-pieces of plastic cases
-
Speaker and main antenna in bottom piece
-
MST, NFC and W/C pad in middle piece
3-pieces of plastic cases
-
Speaker and main antenna in bottom piece
-
MST, NFC and W/C pad in middle piece
-
Graphite sheet is located in left side piece
Rear Case

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S7 edge S8
Touch key is included in the front ass’y. There are no touch-key in the Sub-PBA.
Sub PBA
The S8 Sub PBA can be replaced without OCTA disassembling.

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S7 edge S8
Before re
-assembling,
the outside tape &
inside tape
should be changed.
Before re
-assembling,
the outside tape &
inside tape &
finger print sensor tape
should be changed.
Back glass

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Disassembly

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Pre-requisite (Common)
Tweezers
(Rounded-Tip/Plastic)
Disassembly stick
Screw Driver Anti-static gloves
Glass Absorber Anti-static mat
(Earth connection)
GH81-11902D
GH81-11926AGH81-14437A

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Pre-requisite (To disassemble)
Automatic OCTA
Disassembler Disassembly Jigs (Manual type)
Hot plate OCTA Disass'y Holder
OCTA Disass'y Upper
Battery disassembly
vacuum Cotton Swab Spuit Ethyl Alcohol (about 95%)
GH81-12119A GH81-12833A
GH81-12712N
GH81-12712E (220V)
GH81-12712F (110V)
IMK 1108948200GH81-12712P
GH81-12712S (33pi)
TBD
※Ethyl Alcohol can be used only for battery detaching & swollen battery.

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Parts for Disassembly
1. Back Glass
2. Rear Case
3. Main PBA
4. Ear Jack & Sub PBA
5. Parts on the Main PBA
- Main Camera
6. Parts on the Bracket
- Vibrator, Receiver and Sensor FPCB, IR Camera, Front Camera
7. Battery
8. Front Ass'y

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Disassembly - Back Glass (1/8)
Back glass/OCTA status
Normal Swollen or deformed
The device can be heated under standard. Never heat the device. Use ethyl alcohol only.
Core process
for battery handling
1) Check if the back glass/OCTA is swollen or not.

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Disassembly - Back Glass (2/8)
2) Input the device into the hot plate or mobile dryer.
Condition of pre-heat the device
- Case1 (with battery; SOC 68%↓): 70℃/10~20min(Hot plate and Mobile dryer)
- Case2 (with battery; SOC 68%↑): 60℃/10~20min(Hot plate and Mobile dryer)
※Pre-heat under 60℃for 10~20min in case cannot check SOC, such as No power or no display.
※Keep the pre-heating condition to prevent quality issue during repair.

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[ Note ]
Using OCTA disassembly upper is mandatory to prevent window crack,
except for using the automatic OCTA disassembler.
Disassembly - Back Glass (3/8)
3) Fix the device on the OCTA disassembly holder.
4) Align 2 absorbers(OCTA disassembly upper)along with the back glass edge.
※Left side of the back glass must be detached firstly.
Please keep the direction of device on the disassembly holder.

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Disassembly - Back Glass (4/8)
The position of absorbers
Close to camera window
(Do not cover camera window)
Close to the bottom of back glass
(Do not go out of the back glass)
Back glass
Absorber
Absorber
Absorber
※Left side of the back glass must be detached firstly.
Please keep the direction of device on the disassembly holder.

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Disassembly - Back Glass (5/8)
5) Gently rotate the handle of OCTA disassembly upper.
6) When the back glass starts to be detached, carefully rotate handle
with watching the back glass status.
[ Note ]
Do not use the ethyl alcohol to disassemble back-glass.
(except for battery swelling case)

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Rev1.0
Disassembly - Back Glass (6/8)
7) Lift up and release absorbers after detaching one side of back glass.
8) Take the device out and detach the back glass safely from left to right side.
9) During the lifting, release the finger print sensor connector from the PBA
using the disassembly stick.
10) Check if the finger print sensor is damaged or not during detaching back glass.
11) Remove all tapes and residues on the back glass with tape residue.
☞Back glass tapes CAN NOT be re-used.
Core process
for water resistance

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Disassembly - Back Glass (7/8)
12) Disassemble the finger print sensor from the back-glass.
13) Remove the finger print sensor tape and all residues.
☞Finger print sensor tapes CAN NOT be re-used.
Core process
for water resistance
※Do not push the finger print sensor from the backside
to detach the finger print sensor.