Difficulty
Moderate
Steps
32
Time Required
1 - 2 hours
Sections
5
- SIM Card Tray
- 2 steps
- Back Cover
- 11 steps
- Disconnect the Battery
- 4 steps
- Motherboard
- 11 steps
- Charging Assembly
- 4 steps
Flags
1
In Progress
This guide is a work in progress. Reload periodically to see the latest changes!
BackSamsung Galaxy Note9
Full Screen
Options
History
Save to Favorites
Download PDF
Edit
Translate
Get Shareable Link
Embed This Guide
Notify Me of Changes
Stop Notifications
Introduction
What you need
Step 1
Eject the SIM card tray
- Insert a SIM card eject tool straight into the hole in the SIM card tray.
- Press to eject the SIM card tray.
Insert a SIM card eject tool straight into the hole in the SIM card tray.
Press to eject the SIM card tray.
1024
Step 2
Remove the SIM card tray
- Remove the SIM card tray.
- The SIM card will fall out of the tray easily.
Remove the SIM card tray.
The SIM card will fall out of the tray easily.
Step 3
Apply a heated iOpener
- Power off your phone before beginning disassembly.
- Use a hairdryer, a heatgun, or prepare an iOpener and apply it to the right edge of the back of the phone for about a minute to soften the adhesive underneath.
Power off your phone before beginning disassembly.
Use a hairdryer, a heatgun, or prepare an iOpener and apply it to the right edge of the back of the phone for about a minute to soften the adhesive underneath.
Step 4
Insert an opening pick
- Apply a suction handle to the back cover.
- Lift with a suction handle to create a gap between the back cover and the frame of the phone.
- Insert an opening pick into the gap.
- If the glass is badly cracked, cover it in packing tape to create a surface for the suction cup to adhere to.
- If the adhesive won’t budge, apply more heat, not excessive force. Too much force could break the glass.
Apply a suction handle to the back cover.
Lift with a suction handle to create a gap between the back cover and the frame of the phone.
Insert an opening pick into the gap.
If the glass is badly cracked, cover it in packing tape to create a surface for the suction cup to adhere to.
If the adhesive won’t budge, apply more heat, not excessive force. Too much force could break the glass.
Step 5
Cut through the adhesive
- Note that there is more adhesive along the top edge and around the camera bezel than around the rest of the phone.
- Cut carefully around the left edge near the fingerprint sensor or you risk damaging the ribbon cable inside.
Note that there is more adhesive along the top edge and around the camera bezel than around the rest of the phone.
Cut carefully around the left edge near the fingerprint sensor or you risk damaging the ribbon cable inside.
Step 6
Slide the opening pick
- Starting from the center, cut the adhesive up and down the right side with an opening pick.
- Do not insert the pick more than halfway into the phone when cutting near the fingerprint sensor or cameras, or you risk damaging internal components.
Starting from the center, cut the adhesive up and down the right side with an opening pick.
Do not insert the pick more than halfway into the phone when cutting near the fingerprint sensor or cameras, or you risk damaging internal components.
Step 7
- Leave an opening pick in the upper-right corner.
- Use another opening pick to cut the adhesive around the bottom-right corner.
- Leave that opening pick in the phone.
- Use an iOpener, hair dryer, or heat gun to apply more heat as needed where you are cutting the adhesive.
Leave an opening pick in the upper-right corner.
Use another opening pick to cut the adhesive around the bottom-right corner.
Leave that opening pick in the phone.
Use an iOpener, hair dryer, or heat gun to apply more heat as needed where you are cutting the adhesive.
Step 8
- Use a heat gun or hair dryer or apply a heated iOpener to the left side of the rear panel for about a minute to soften the adhesive underneath.
Use a heat gun or hair dryer or apply a heated iOpener to the left side of the rear panel for about a minute to soften the adhesive underneath.
Step 9
- Insert an opening pick into the lower-left corner of the rear panel.
- Using another opening pick, cut the adhesive along the left edge of the rear panel.
- Do not insert an opening pick in more than half way on the left edge near the fingerprint sensor or you may damage the ribbon cable inside.
- It is fine if opening picks fall out as the back cover becomes separated.
Insert an opening pick into the lower-left corner of the rear panel.
Using another opening pick, cut the adhesive along the left edge of the rear panel.
Do not insert an opening pick in more than half way on the left edge near the fingerprint sensor or you may damage the ribbon cable inside.
It is fine if opening picks fall out as the back cover becomes separated.
Step 10
- Using the inserted opening pick, carefully cut the adhesive around the upper-left corner of the rear panel.
- Finally, cut the last of the adhesive along the top of the phone.
- Use an iOpener, hair dryer, or heat gun to apply more heat as needed where you are cutting the adhesive.
Using the inserted opening pick, carefully cut the adhesive around the upper-left corner of the rear panel.
Finally, cut the last of the adhesive along the top of the phone.
Step 11
- Separate the right side of the rear cover first.
- Tilt the cover up along the left edge to expose the fingerprint sensor ribbon cable.
- Do not pull out the fingerprint sensor ribbon cable yet.
Separate the right side of the rear cover first.
Tilt the cover up along the left edge to expose the fingerprint sensor ribbon cable.
Do not pull out the fingerprint sensor ribbon cable yet.
Step 12
Disconnect the fingerprint sensor
- Use the tip of a spudger to pry the fingerprint sensor ribbon cable up and out of its socket.
Use the tip of a spudger to pry the fingerprint sensor ribbon cable up and out of its socket.
Step 13
- Remove the back cover.
- To install a back cover:
- Use tweezers to peel away any remaining adhesive from the phone’s chassis. Then clean the adhesion areas with high concentration isopropyl alcohol (at least 90%) and a lint-free cloth to prep the surface for the new adhesive.
- Turn on your phone and test your repair before installing new adhesive and resealing the phone.
- Carefully apply the new adhesive to the back cover, then line up one edge of the glass against the phone chassis and firmly press the glass into the phone.
- Alternatively, you may reinstall the back cover without replacing the adhesive. Remove any large chunks of adhesive that might prevent the back cover from sitting down flush. After installation, heat the back cover and apply pressure to secure it. It won’t be waterproof, but the glue is usually more than strong enough to hold.
Remove the back cover.
To install a back cover:
Use tweezers to peel away any remaining adhesive from the phone’s chassis. Then clean the adhesion areas with high concentration isopropyl alcohol (at least 90%) and a lint-free cloth to prep the surface for the new adhesive.
Turn on your phone and test your repair before installing new adhesive and resealing the phone.
Carefully apply the new adhesive to the back cover, then line up one edge of the glass against the phone chassis and firmly press the glass into the phone.
Alternatively, you may reinstall the back cover without replacing the adhesive. Remove any large chunks of adhesive that might prevent the back cover from sitting down flush. After installation, heat the back cover and apply pressure to secure it. It won’t be waterproof, but the glue is usually more than strong enough to hold.
Step 14
Remove the upper midframe
- Use a Phillips screwdriver to remove the nine 4 mm screws securing the upper midframe.
Use a Phillips screwdriver to remove the nine 4 mm screws securing the upper midframe.
Step 15
- Insert the tip of a spudger into the upper-left corner of the upper midframe.
- Pry the upper midframe out of the phone.
- The upper midframe snaps into and out of place.
Insert the tip of a spudger into the upper-left corner of the upper midframe.
Pry the upper midframe out of the phone.
The upper midframe snaps into and out of place.
Step 16
- Peel the wireless charging coil off the battery starting with the left side.
- The adhesive is weak but you can use an opening pick to cut it if necessary.
- During reassembly start by snapping the midframe into place first before adhering the wireless charging coil.
Peel the wireless charging coil off the battery starting with the left side.
The adhesive is weak but you can use an opening pick to cut it if necessary.
During reassembly start by snapping the midframe into place first before adhering the wireless charging coil.
Step 17
Disconnect the battery
- Use the tip of a spudger to disconnect the orange ribbon cable connecting the battery to the motherboard.
Use the tip of a spudger to disconnect the orange ribbon cable connecting the battery to the motherboard.
Step 18
Remove the midframe
- Remove the nine 4 mm Phillips screws from the plastic cover next to the battery.
Remove the nine 4 mm Phillips screws from the plastic cover next to the battery.
Step 19
- Remove the plastic cover next to the battery.
Remove the plastic cover next to the battery.
Step 20
- Insert the tip of a spudger into the top of the lower midframe.
- Pry the lower midframe out from the phone.
- The lower midframe snaps into and out of place.
- Remove the lower midframe.
Insert the tip of a spudger into the top of the lower midframe.
Pry the lower midframe out from the phone.
The lower midframe snaps into and out of place.
Remove the lower midframe.
Step 21
Remove the front camera
- Use the tip of a spudger to pry the front camera connector straight up and out of its socket.
- Use tweezers to remove the front camera.
Use the tip of a spudger to pry the front camera connector straight up and out of its socket.
Use tweezers to remove the front camera.
Step 22
Remove the iris scanner
- Use the tip of a spudger to disconnect the iris scanner from the motherboard.
- Use tweezers to remove the iris scanner.
Use the tip of a spudger to disconnect the iris scanner from the motherboard.
Use tweezers to remove the iris scanner.
Step 23
Disconnect the front sensor array
- Use the flat end of a spudger to pry the front sensor connector out of its socket.
Use the flat end of a spudger to pry the front sensor connector out of its socket.
Step 24
Disconnect the display assembly
- Use the flat end of a spudger to disconnect the display cable from the motherboard.
Use the flat end of a spudger to disconnect the display cable from the motherboard.
Step 25
- Use the flat end of a spudger to disconnect the touchscreen cable from the motherboard.
Use the flat end of a spudger to disconnect the touchscreen cable from the motherboard.
Step 26
Disconnect the charging assembly
- Use the flat end of a spudger to disconnect the charging assembly from the motherboard.
Use the flat end of a spudger to disconnect the charging assembly from the motherboard.
Step 27
- Remove the three 4 mm Phillips screws securing the motherboard.
- There are triangles next to the holes indicating the motherboard screw locations.
Remove the three 4 mm Phillips screws securing the motherboard.
There are triangles next to the holes indicating the motherboard screw locations.
Step 28
- Use a spudger to gently lift the motherbord from the upper-left corner.
- Carefully remove the motherboard.
- Move the ribbon cables out of the way as necessary. Do not pull the motherboard out if it becomes snagged on any cables.
Use a spudger to gently lift the motherbord from the upper-left corner.
Carefully remove the motherboard.
Move the ribbon cables out of the way as necessary. Do not pull the motherboard out if it becomes snagged on any cables.
Step 29
Remove the charging assembly
- Remove the two 3.2 mm Phillips screws from the charging assembly.
Remove the two 3.2 mm Phillips screws from the charging assembly.
Step 30
- Use the tip of a spudger to lift the microphone out from its housing and separate the microphone cable from the phone.
Use the tip of a spudger to lift the microphone out from its housing and separate the microphone cable from the phone.
Step 31
- Slide an opening pick underneath the charging assembly and pry to release it from the phone.
Slide an opening pick underneath the charging assembly and pry to release it from the phone.
Step 32
- Use a pair of tweezers to remove the charging assembly.
Use a pair of tweezers to remove the charging assembly.
To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
Cancel: I did not complete this guide.
17 other people completed this guide.
Author
Sam Omiotek
Member since: 02/25/2019
55,294 Reputation
288 Guides authored
Badges:
35
+32 more badges
Team
Guide Team
Member of Guide Team
Community
10 Members
9,216 Guides authored
William Eustis - Mar 17, 2021
Reply
How do I put the back back on?
Sam Omiotek - Mar 22, 2021
Hey William, thanks for the question! Check out the second bullet on step 13: To install a back cover:
B Rich - Oct 30, 2021
Reply
Excellent guide.
After reassembling to step 17( reconnecting the battery) I tried powering on the phone. Nothing happened. I connected to a charger,, the phone vibrated and the red blinking light appeared. I left the phone connected to the charger for an hour, tried to power on and nothing happened. I checked to make sure all the connections were tight, but to no avail. I tried a soft reset, but that didn’t work either. Any idea what I did wrong?
Sam Omiotek - Nov 1, 2021
Thank you!
Since there are signs of life when you turn on/charge the phone, but nothing on screen, here’s what I would try:
Disconnect the charger
Disconnect the battery cable from the motherboard
Disconnect the display cable from the motherboard
Reconnect the display cable
Reconnect the battery cable
Power on to test
If that does not fix it, another cable may not be properly connected. This sometimes prevents certain phones from powering on. Otherwise the display connector may have been damaged during the repair.
B Rich - Nov 9, 2021
Reply
The phone definitely is charging and previously set alarms go off on schedule, but screen stays black.
Is there a way to check the integrity of the ribbon cables?