Tablet · Samsung · Galaxy Tab S8 Ultra
Samsung Galaxy Tab S8 Ultra Battery Replacement
Battery Replacement guide for the Samsung Galaxy Tab S8 Ultra
Before you begin
Tools
- Heat gun or hair dryer
- Suction cups
- Guitar picks for prying
- Precision screwdriver set
- Plastic prying tools
- Tweezers
- Clean workspace mat
Parts / materials
- Battery adhesive removal strips
- Isopropyl alcohol (90%+)
- Pre-cut screen adhesive tape
Safety
- Wear safety glasses to protect against potential glass fragments.
- Do not bend, puncture, or crush the lithium-ion battery.
- Keep heat gun temperatures below 80°C (176°F) to avoid damaging the OLED display.
Overview
Step-by-step
- 1
Power off the tablet
1 minPress and hold the power button and select Power Off on the screen. Disconnect all cables before proceeding.
- 2
Heat perimeter display adhesive
3 minApply heat along all four edges of the 14.6-inch display using a heat gun for 2 to 3 minutes to soften the factory adhesive.
- 3
Attach suction cup to screen
1 minPress a heavy-duty suction cup onto the upper front glass near the front camera array.
- 4
Insert opening pick
2 minPull up firmly on the suction cup to create a small gap, then slide a guitar pick into the seam.
- 5
Slice through perimeter screen adhesive
5 minCarefully slide guitar picks along the entire outer edge to break the adhesive bond, keeping picks shallow to avoid display ribbon cables.
- 6
Hinge open the display
2 minGently lift the display assembly upward from the right edge, pivoting it like a book.
- 7
Unscrew the display cable shield
2 minUse a Phillips #00 precision screwdriver to remove the screws holding the metal display connector shield.
- 8
Disconnect the display cables
1 minUse a plastic spudger to detach the display flex cables directly upward from the motherboard.
- 9
Set aside display screen
1 minLift the display assembly completely off the tablet body and store it flat on a clean workspace mat.
- 10
Disconnect the battery cable
1 minPry the battery press connector straight up off the motherboard using a plastic prying tool to isolate electrical power.
- 11
Unscrew motherboard bracket screws
3 minRemove the Phillips #00 screws holding the central frame and daughterboard shield brackets in place.
- 12
Remove internal shield plates
2 minUse tweezers to lift away the metal and plastic protective brackets overlying the battery edges.
- 13
Apply isopropyl alcohol to battery
2 minApply a few drops of 90%+ isopropyl alcohol around the edges of the battery cells to dissolve the adhesive underneath.
- 14
Pry out the old battery
4 minInsert a flat plastic card under the battery cells and slowly lift to break the remaining adhesive bond.
- 15
Clean battery compartment
2 minWipe away residual glue from the aluminum chassis using isopropyl alcohol and a clean cloth.
- 16
Apply new battery adhesive
2 minLay replacement battery adhesive strips directly into the recessed battery cavity.
- 17
Position new battery
2 minAlign the replacement battery in the tray and press down firmly across its surface to set the adhesive.
- 18
Reinstall internal brackets
3 minReplace the motherboard and frame shield plates, securing them with the Phillips #00 screws.
- 19
Reconnect display and battery cables
3 minPlug the battery connector back into the board, reconnect the display flex cables, and reinstall the display bracket shield.
- 20
Reseal display screen
4 minApply fresh display adhesive tape along the frame border and press the screen firmly back onto the chassis.
After your Samsung Galaxy Tab S8 Ultra battery replacement
Power the Galaxy Tab S8 Ultra back on and test the battery replacement function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Samsung Galaxy Tab S8 Ultra job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Prefer a professional repair?
Book Samsung Galaxy Tab S8 Ultra battery replacement at LML Repair in Seattle — same-day options available.
