iFixit - Answers With Device "Samsung Galaxy S9 Plus"

Samsung Galaxy S9 Plus: How to stop the annoying moisture detected at the USB charging port.

Thu, 12 Feb 2026 13:14:49 -0700

Help! I have a three weeks old Galaxy S9+ and the notification of moisture detected at the USB charging port is keeping me from charging my phone and keeps alerting about the moisture. I live in Michigan so it’s not overly humid. This past weekend, it was rainy and humid and the darn phone wouldn’t let me plug in the fast charger. I didn’t have my wireless charger with me.

Is there something wrong with the phone? Should I return it to Best Buy and ask for an exchange or refund? Help I am conflicted. (By the way I switched from an iPhone 8 for a change of pace.)

⟐ Commented February 12, 2026 at 13:14 MST

Samsung Galaxy S9 Plus: Glass replacement price options

Tue, 09 Feb 2021 14:56:22 -0700

Any idea as to how much it could cost to replace the glass on the back of the s9+ lilac?

⟐ Commented February 09, 2021 at 14:56 MST

Samsung Galaxy S9 Plus: Separate glass from LCD display and digitizer

Wed, 28 Nov 2018 16:40:23 -0700

How do would one replace just the glass on the Galaxy s9+ since the LCD display and the digitizer still work perfectly fine

⟐ Answered November 28, 2018 at 16:40 MST

Samsung Galaxy S9 Plus: How do I repair cracked front glass on s9+ without replacing the LCD?

Fri, 07 Jun 2019 11:13:13 -0700

The screen on my galaxy s9+ recently broke. I would like to replace the front glass without replacing the LCD as that is not damaged. I have not found a video or tutorial that can explain this. I am a beginner with phone repairs but I am willing to learn anything necessary.

⟐ Answered June 07, 2019 at 11:13 MST

Samsung Galaxy S9 Plus: Cleaning loca glue from a smartphone speaker?

Fri, 27 Sep 2024 19:33:24 -0700

I tried to adhere a glass screen protector to my Samsung S9+ and made a mess of the loca glue. The glue got into the top speaker grill and I tried to clean it out with denatured alcohol / methylated spirits.

Unfortunately, right now the speaker sounds crackly. I’m thinking the denatured alcohol got inside plus the partially dissolved loca glue.

So what are my options? Can I fix the speaker by bathing it in more methylated spirits or buying some electronics contacts cleaner?

Or do I have to open the entire phone, losing the waterproofness in the process, and replace the entire speaker?

⟐ Commented September 27, 2024 at 19:33 MST

Samsung Galaxy S9 Plus: Why is my phone displaying overheat message?

Mon, 01 Jul 2024 19:37:10 -0700

After a screen repair, the phone displays a message stating it has paused charging due to high temperatures. However, the phone is not hot at all. I have replaced both the battery and chargeport but the issue continues to happen when plugged into a charger and when placed on a wireless charging pad. I know the Samsung S8 displayed this message if the phone was not fully assembled so I made sure to fully assemble the device before attempting to test all its functions. Any other part I may need to replace and check or any other recommendations?

⟐ Answer accepted July 01, 2024 at 19:37 MST

Samsung Galaxy S9 Plus: Why does my phone keep restarting?

Sun, 22 Jan 2023 20:43:20 -0700

At first it only restarted a couple of seconds after the screen was off. I tried to fix it by trying to update my phone, restarting it manually, and deleting some apps. But now it just turns off randomly every couple of minutes. It just started today, u don't know what to do.

⟐ Answer unaccepted January 22, 2023 at 20:43 MST

Samsung Galaxy S9 Plus: Moisture detected in charging port. Never been wet.

Tue, 14 Sep 2021 02:45:43 -0700

This phone is not too old. Bought it 6 months ago or so. Phones been wet once back when its new. But it was just a bit on the screen. I dropped it in snow. The port was covered too. Now after installing a update (Phone was plugged in while updating) that Samsung forces on you it immediately came saying the port was wet and refused to let phone charge. Ive let it sit overnight as it was around midnight then that happened. No change. Ive tried reboots,clearing cache,reset all settings and blowing in the port. Nothing. Occasionally the phone will charge. After pressing ok a billion times and a billion reboots. I really need help with this. This is my main phone and dont have money to buy a new one. Thanks!

⟐ Answered September 14, 2021 at 2:45 MST

Samsung Galaxy S9 Plus: How to open forgotten pattern

Tue, 22 Jul 2025 05:39:32 -0700

Forgate pattern and connect with wifi

⟐ Answered July 22, 2025 at 5:39 MST

Samsung Galaxy S9 Plus: How to replace volume buttons?

Thu, 12 Oct 2023 08:20:42 -0700

I need to replace the volume buttons on my GS9+. Which part do I need to replace to make this happen?

⟐ Answered October 12, 2023 at 8:20 MST

Samsung Galaxy S9 Plus: Not receiving calls from only one provider?

Mon, 02 Oct 2023 04:58:46 -0700

Hi all, I hoping that someone here can help me?

I have for the last couple of weeks, been missing calls and texts from certain numbers.. but I was unaware of this until I was told by the caller that they could not get through to me..

I have changed provider, changed my sim, changed my phone, done countless factory resets and still the same.

I have narrowed it down to anyone on Vodafone that is not able to call or text me,, other callers can still get through to me.

The message that the affected callers get is that I am not available to take their calls?

Has anyone else had this and can you please help? the only alternative that I see to this is to change my number and that would be a nightmare.

⟐ Commented October 02, 2023 at 4:58 MST

Samsung Galaxy S9 Plus: Mobile data signal horrible after repair

Tue, 04 Oct 2022 00:43:52 -0700

So I recently replaced my, battery and charging port on my phone and noticed right away that my mobile data signal was horrible, like at home I would have no data what so ever, out in most places I would have it but not as strong as it used to be, anytime I walked into a building it was gone. I got really fed up with it and put my old charging port back in, it barely charges the phone but the data signal is normal again. How can I fix this, is it a bad charging port?

⟐ Answer accepted October 04, 2022 at 0:43 MST

Samsung Galaxy S9 Plus: My screen has rolling green lines or just completely black help!

Thu, 30 Apr 2020 07:41:11 -0700

i just got hulu app and it wouldnt work on dex mode, so i used screen mirroring. first night, screen turned weird green but i turned off and restarted my phone. and it came back to normal. next night, i used screen mirror hulu again , and when got up screen was dead. turned off rolling green lines when power on. then black cant see anything. it goes back and forth between these two states. dex works. but its been overheating and crashing alot. imscared it may never be able to turn on again. and its my only phone and access to the intenet. because coronavirus i cnt go to the store to fix or replace. worry if do hard reset it might never turn on again or mess with my sim card.i did soft rest clear cache partition. vo help.

⟐ Answered April 30, 2020 at 7:41 MST

Samsung Galaxy S9 Plus: Fingerprint Sensor not working

Fri, 16 Aug 2024 16:47:39 -0700

Hi all, so I have a Samsung Galaxy S9+ that has had an inoperable fingerprint sensor for some time. I got the iOpener kit and a new fingerprint sensor from iFixit to fix this. However after installing the new one I got a message saying the sensor wasn't working. The flex cable is securely attached into the fingerprint sensor port. So iFixit sent me a new sensor, thinking it was a bad sensor. However the replacment recently arrived and this is won't register either. I keep getting the message "fingerprint sensor not working". I've restarted the phone, booted into recovery mode and cleared the system cache in case anything funky was happening. No dice. Has anyone encountered this error while replacing the sensor? The guide on iFixit makes it look like just plug in the one and you're good to go. Thanks for the help!

UPDATE

As no one was able to provide clarification, I have lived without the fingerprint sensor. I love having a headphone jack on my phone and don't want to upgrade to a newer phone due to this. So if you are here looking for a solution, apologies but I am not sure of one currently. (as of 8/16/2024)

⟐ Edited by author August 16, 2024 at 16:47 MST

Samsung Galaxy S9 Plus: Why won't my microphone work even after replacing charging board?

Thu, 27 Apr 2023 23:43:28 -0700

My Samsung S9 Plus SM- G965U took a hard hit and broke the rear glass and the microphone quit working. I had a shop replace the back and the charging port board, but the mic still does not work. I replaced that board with an aftermarket one I bought on the internet. It did not fix the mic issue. I bought a genuine Samsung board that came from a working phone and tried it. The mic still does not work. I was going to test the mic on a set of headphones, but now I also notice that the headphone jack does not work. Nothing happens when I plug in a set of headphones. I connected a set of bluetooth headphone and the mic works this way. All functions of the phone work, the screen is not damaged, sound works, touch works, fingerprint reader works, wifi works, sim card works and I can make calls and text if I use bluetooth. I have also factory reset the phone twice. Any suggestions would be appreciated.

⟐ Answered April 27, 2023 at 23:43 MST

Samsung Galaxy S9 Plus: Green color tint on 20 yo 60% brightness

Mon, 22 Apr 2024 13:29:43 -0700

I have an Samsung s9 pls - Mobile its Screen gets minor black lines an sort of florescent green color comes in between 20 an 60% brightness when adjust, no crack nothing on screen absolutely new condition. What's the problem?. I done format all things not getting OK. Please help. Its has never been dropped. Never nothing. Than why this problem and Samsung service centre person said display is damaged. Need to replace it with an new display with frame. (Ring) . But I wanna no why all this all samsung has this issue after paying 50 to 60,000rs for an premium mobile

⟐ Commented April 22, 2024 at 13:29 MST

Samsung Galaxy S9 Plus: Samsung S9 Plus Battery Replacement

Tue, 21 Jul 2020 04:01:41 -0700

Hello everyone,

After replacing the Samsung Galaxy S9 Plus battery do I need to buy a rear cover adhesive to strip my phone? If yes, where can I buy it?

Thank you in advance!

⟐ Answered July 21, 2020 at 4:01 MST

Samsung Galaxy S9 Plus: No power on, no charge, black screen

Wed, 09 Oct 2019 15:32:05 -0700

Hey guys! Before nothing, thanks for your help. Have a Samsung Galaxy S9+, these become my hands, and not power on, not charge and no display on screen.

When I plugged the cable into charger port the power consumption is 5 volts and 0,07 amps, but no charge. The battery should be in 3,85 volts but this have 1,54 volts, this point make me think the port charger is broken, but I will like first confirm this.

Someone can help me or will say, ¿how can resolve the points?

Thanks!

⟐ Comment deleted October 09, 2019 at 15:32 MST

Samsung Galaxy S9 Plus: Is the L shaped silver sticker needed on the inside of the back plate?

Mon, 02 Oct 2023 01:54:05 -0700

You can see the sticker i am talking about in step 2. Samsung Galaxy S9 Plus Rear Glass Removal

It came off when removing the adhesive. I want to know if its important

⟐ Answer edited October 02, 2023 at 1:54 MST

Samsung Galaxy S9 Plus: Bought a replacement battery, but it was made in 2020.

Tue, 04 Apr 2023 22:57:39 -0700

Hey guys,

Bought a replacement battery for this phone, but the battery seems to have been made in 2020. Should I return or is it worth continuing to work with it?

⟐ Answer accepted April 04, 2023 at 22:57 MST