Samsung Galaxy S9 Plus Battery Replacement
Duration: 45 minutes
Steps: 16 Steps
Ready to replace the battery in your Samsung Galaxy S9 Plus? Here’s the deal: opening up your device will compromise its waterproof seals. So, while your phone will still work, you’ll lose that sweet water resistance. Before you get started, make sure to drain the battery below 25%. And, if the battery is swollen, don’t even think about heating your phone. Swollen batteries can be hazardous, so make sure to protect your eyes and be cautious. If you’re not feeling confident, it’s totally cool to let a professional handle it. When putting everything back together, don’t forget to grab some replacement adhesive to keep things intact. If you’re stuck, schedule a repair.
Step 1
The adhesive on the Samsung Galaxy S9 Plus is no joke—it’s tough! If you’re struggling to open it with the iOpener, a hair dryer, heat gun, or hot plate should do the trick. Just make sure not to go overboard with the heat; both the AMOLED display and the internal battery are heat-sensitive, so play it safe and keep things warm, not sizzling!
- Power down your phone before you start. No one likes surprises.
- Grab your iOpener and give the rear glass some spa treatment for at least two minutes to loosen that stubborn adhesive. You might need to repeat this heat therapy a few times as you work the back cover free.
Tools Used
Step 2
The adhesive inside the back cover is laid out as shown in the image. Just follow its pattern to get everything sticking back properly.
- Next up, we'll be slicing through the sticky adhesive holding the back cover in place. Grab your tool and let's get into it.
- Target these zones as you work:
- Extra-thick strips of adhesive
- Thin, sneaky bits of adhesive
- Steer clear of this spot—there's a fingerprint sensor flex cable lurking there, and we want to keep it safe.
Step 3
Cracked rear glass giving your suction cup the cold shoulder? Grab some strong tape to get things moving, or if you're feeling crafty, use a dab of superglue to anchor your suction cup—just let it dry before you go for the lift.
Don’t be shy with the force—just a tiny gap is all you need to sneak your tool in. If things aren’t budging, hit it with more heat to loosen the adhesive, and give it another shot. The sticky stuff cools down quick, so you might need to reheat it more than once.
- Stick that suction cup smack onto the back cover.
- Gently pull up on the bottom edge with your suction cup until you see a little gap peek open between the cover and the frame.
- Slide an opening pick into that gap and cruise it over to the bottom right corner.
Step 4
- Grab a second opening pick and gently slide it into the bottom left corner to get things started.
- Place a third opening pick at the bottom edge of the phone—leave it there during the rear glass removal to keep the adhesive from sticking back together.
Step 5
- Kick things off by sliding the tip of your opening pick from the bottom left corner up the side of your S9 Plus. Smooth moves, friend.
- Once you’ve sliced through about half the adhesive on the left side, leave that pick parked right where it is. No need to rush.
- Now, grab another pick and glide it from the bottom right corner up the frame—just halfway. Let it chill there for a bit.
Step 6
Hold up! Before you swing the phone open, keep in mind the fingerprint reader’s flex cable is still hanging on to the motherboard.
- Pop a fourth opening pick into the right side of the frame and gently slide it toward the top right corner.
- Next, grab a fifth opening pick and carefully slide it along the left side of the phone, moving toward the top left corner.
- Now, use that opening pick to cut through the rest of the adhesive along the upper part of the rear glass.
Step 7
- Gently lift the rear glass from the side where the volume button hangs out—like you're opening a secret door.
- Grab your trusty spudger and carefully pop up the fingerprint sensor flex cable. No sudden moves—think ninja, not lumberjack.
Tools Used
Step 8
- Pop off that rear glass like a pro.
- When putting everything back together, use this guide to get the adhesive in place and slap that rear glass back on.
- If you're swapping out your rear glass, follow these steps to move the rear camera bezel and the fingerprint sensor along for the ride.
Step 9
- Start by removing the nine 4 mm Phillips #00 screws holding things down. Keep your screwdriver handy and go for a smooth, steady turn—these screws are just snug enough to keep you on your toes. If you need a hand, you can always schedule a repair.
Step 10
- Slide an opening pick under the right edge of the plastic cover that houses the NFC antenna and charging coil.
- Twist the pick sideways and pop the cover out of its plastic clips—like you’re flipping a pancake.
- Keep cruising around the cover, gently prying up to set the rest of those clips free.
Step 11
- Lift off the plastic cover that holds the NFC antenna and charging coil—easy does it, like opening a present!
Step 12
- Grab the flat end of your spudger and gently pop up the battery flex cable like you're flipping a light switch. Easy does it!
Tools Used
Step 13
- Grab your trusty iOpener and let’s get that battery adhesive loosened up! Just apply it for a solid two minutes to work its magic.
- Next up, when you’re using the spudger, make sure to stick to the areas highlighted in red. That’s where the battery adhesive is hanging out!
- And hey, steer clear of this spot! There’s a sneaky gap in the mid-frame right below the battery, and we wouldn’t want you to accidentally give the display a little love tap.
Step 14
Handle that battery gently—no squeezing, bending, or poking with metal tools. Damaging soft-shell lithium-ion batteries can cause nasty leaks, fires, or even explosions, and nobody needs that drama today.
If you're having a tough time getting that battery to budge, try using a couple of drops of high-concentration (>90%) isopropyl alcohol at each corner. Let it sit for a few minutes to work its magic on the adhesive. You'll be prying that battery up like a pro in no time!
- Grab your trusty spudger and gently wedge the flat end into the top left corner of the battery, right where that flex cable is hiding. Apply steady, confident pressure and start prying it up—smooth and steady wins the race.
- Next, glide your way down the left edge of the battery, working the adhesive loose with your spudger. Keep it gentle but firm, and you'll free that battery in no time.
Tools Used
Step 15
- Slide your spudger into the top right corner of the battery and gently pop it up—like you're opening a snack you really want.
Tools Used
Step 16
Once you've taken out the battery, don't pop it back in—old batteries can be risky business. Treat your device to a fresh new battery instead.
- To put your device back together, just walk through these steps in reverse.
- If you can, power up your phone and check your repair before you seal everything up.
- Give your new battery a quick calibration for best performance once you’re done.
- Don’t toss those old parts—drop your e-waste off at an R2 or e-Stewards certified recycler.
- Need a hand or stumped by a stubborn step? Swing by our Answers community for some troubleshooting magic, or schedule a repair if you want pro backup.
