iFixit - Answers With Device "Samsung Galaxy S21 FE"

Samsung Galaxy S21 FE: My phone's bluetooth connects to any speaker but no sound comes out

Tue, 25 Mar 2025 19:43:04 -0700

My phone used to connect to speakers via bluetooth with no problem but since the beginning of this year it now it connects to a speaker but no sound comes out. And it's not the speakers because I have successfully connected different phones/devices to the speakers and the sound is just fine. The issue only seems to be related to my phone. Has anyone ever experienced anything similar to this or have any suggestions on what I can do to fix this?

⟐ Commented March 25, 2025 at 19:43 MST

Samsung Galaxy S21 FE: Where can I get a replacement display?

Fri, 06 Sep 2024 13:54:50 -0700

I recently dropped my phone face down on rocks and the display has been destroyed. Is there a place I can get a identical display replacement for my phone? Also, I live in the USA.

⟐ Commented September 06, 2024 at 13:54 MST

Samsung Galaxy S21 FE: How can I replace or repair the scratched screen

Sat, 28 Jan 2023 07:54:28 -0700

How can I repair or replace my scratched screen?

⟐ Answered January 28, 2023 at 7:54 MST

Samsung Galaxy S21 FE: Green Lines On Screen

Sat, 02 Aug 2025 05:52:36 -0700

How to fix Green Line issue on screen ???

⟐ Answered August 02, 2025 at 5:52 MST

Samsung Galaxy S21 FE: Failing to connect to wifi

Wed, 13 May 2026 19:36:33 -0700

It refuses to connect to any wifi,it's unsupported

⟐ Answer edited May 13, 2026 at 19:36 MST

Samsung Galaxy S21 FE: Blacklisted - Any solutions besides motherboard replacement?

Tue, 27 Sep 2022 00:12:50 -0700

I recently got my hands on a S21 FE for cheap since it was blacklisted. I was aware of this and figured I could replace the motherboard/logic board and be on my way…however I didn’t anticipate how difficult of a task this would be. I have no issue performing such a repair if i could only find the part. I’ve found the part on aliexpress for an expensive amount compared to other galaxy models. Everywhere i look it’s just so hard to find parts for this phone and i’m not sure why, anywho i’ve also called the carrier but they’re unwilling to help. Does anyone know of any other route i can take besides waiting it out for a reasonably priced board to pop up?

⟐ Commented September 27, 2022 at 0:12 MST

Samsung Galaxy S21 FE: Small scratch-like dots on my phone screen

Tue, 26 Dec 2023 11:19:28 -0700

Hi everyone, only a few days ago I noticed that there are these 2 little spots on my screen. First time I saw the spots was after my phone was being carried in a purse (Not mine) and taking it out. At first I thought it was just dirt so I tried cleaning it off but nothing works. I've used isopropyl, screen cleaning solution, toothpaste, an eraser and a few others. Nothing works. There isn't a screen protector applied on this screen either. I'm starting to wonder whether the screen itself is damaged or not, if anybody knows a fix or reason to how this could have happened I'd love to know. Thanks.

Link for Photos:

https://mega.nz/folder/5ssFmBYJ#z_QpdHTZ...

⟐ Commented December 26, 2023 at 11:19 MST

Samsung Galaxy S21 FE: Low speaker during call

Tue, 04 Jul 2023 17:43:48 -0700

My speaker is verry low during calls tried cleaning it with no success

⟐ Answer accepted July 04, 2023 at 17:43 MST

Samsung Galaxy S21 FE: The back came off my phone

Sat, 20 Dec 2025 19:37:47 -0700

How to glue the back cover back on

⟐ Answer edited December 20, 2025 at 19:37 MST

Samsung Galaxy S21 FE: Phone bluetooth connected but don't work on phone calls

Sat, 24 Jan 2026 22:59:03 -0700

Thank you for looking into my question. My Galaxy S21 FE 5G connects to Bluetooth devices such as my car and AirPods and other Bluetooth speakers without any issues, and audio works fine for music and YouTube. However, when I make phone calls, the audio does not work—neither I nor the other party can hear each other, no sound at all, also, I realized that when connected with car Bluetooth, there is no sound either. Thank you!

⟐ Commented January 24, 2026 at 22:59 MST

Samsung Galaxy S21 FE: Display white line happened after update

Sun, 06 Jul 2025 09:12:39 -0700

Screen white line problem

Samsung Galaxy S21 FE: Screen starts flickering and turning yellow with horizontal lines,

Fri, 09 Feb 2024 04:19:16 -0700

How to fix sudden flickering and horizontal lines with screen turning yellow. Some times screen fades out some times pixel appears on whole skin. Once screen turned off it returns to normal for couple of seconds or minutes some times and then same problem starts.

Samsung Galaxy S21 FE: Moisture in the port not going away

Wed, 30 Aug 2023 17:30:38 -0700

The notification that there is moisture in the charging port won't go away no matter what I do

⟐ Answered August 30, 2023 at 17:30 MST

Samsung Galaxy S21 FE: Wi-Fi/Hotspot antenna not working at all

Sat, 28 Mar 2026 00:07:42 -0700

I have dropped my phone a few times no significant damage done to the phone until about 3 days later I noticed the adhesive that holds the back of the phone on was separating on both sides and noticed that my phone won't connect to home/public Wi-Fi or let me use my hotspot. I search for network but absolutely NO networks can be found at all. I still have 5g phone service and my Bluetooth is 100% functioning properly. I believe the Wi-Fi antenna has shifted from the falls or possibly dirt could've gotten into the gap where the adhesive has separated or could very well be damaged completely. I took my phone into a fix it place and they told me that I would have to replace the motherboard and it's impossible to repair just the Wi-Fi antenna only costing me $797! They never actually inspected my phone to begin with to confirm if infact it was my Wi-Fi antenna or something else. I believe it can be fixed and I shouldn't have to spend so much money and replace the motherboard for that 1 thing. I'm confident I can do the repairing myself if I knew the proper steps and diagram of the procedure and have the proper tools that's needed of course. Hopefully this can be done with least amount of money spent. Could someone please help me figure this out please?

Thank you in advance, very much appreciated!

⟐ Answered March 28, 2026 at 0:07 MST

Samsung Galaxy S21 FE: My network always on Emergency only?

Thu, 26 Mar 2026 04:40:51 -0700

How can I fix it, the network after I put my simcard always on emergency only or searching

⟐ Answered March 26, 2026 at 4:40 MST

Samsung Galaxy S21 FE: Stuck in repair mode

Wed, 03 Sep 2025 02:08:19 -0700

How do I get my galaxy off of repair mode if my power button quit working

⟐ Answered September 03, 2025 at 2:08 MST

Samsung Galaxy S21 FE: Rear Camera (main camera / middle)

Tue, 19 Aug 2025 08:10:49 -0700

Has anyone come across this issue. We have been repairing phones for 8 years and this is a first for us.

Galaxy S21 FE 5G (SM-G990E) We replaced the main camera as exposed when back lens cracked and was damaged.

We have replaced 3 cameras and none work. they are Samsung Service centre parts

Camera app, says Camera Failed and closes down
*#0*# test menu won't load the camera test
Samsung Members app test says send to Samsung service centre.

We have checked the serial number on the original camera is the same number on the replacement. As some charging ports the U / B model is important for function. But Original and New same serial on the part.

the Samsung Self Repair Assistant App, is not available in Australia. We have downloaded the Apk file from US version. and won't run the calibration.

Have I been extremely unlucky and just had 3 faulty cameras or is there some new software issue stopping it from functioning.

Safe mode I have tried
all software is up to date

⟐ Answer edited August 19, 2025 at 8:10 MST

Samsung Galaxy S21 FE: My phone fell into the water. Now the touch screen is not working,

Sat, 09 Aug 2025 12:15:07 -0700

what do i want to do please help me what do i want to do please help me

⟐ Answered August 09, 2025 at 12:15 MST

Samsung Galaxy S21 FE: Toothpick stuck in the sim card ejection hole

Fri, 13 Jun 2025 07:47:49 -0700

It is all the way down and i couldnt figure out a way to get it out please help i need to change my sim card in 2 days

⟐ Answered June 13, 2025 at 7:47 MST

Samsung Galaxy S21 FE: OS Corrupted, How to fix in recovery mode

Tue, 03 Jun 2025 23:57:15 -0700

Hi,

My phone is on a boot loop and will not load the os.

I am able to get into recovery mode and I have wiped the data/factory reset and cache to no avail.

How would I update the OS to fix this problem?

⟐ Answer edited June 03, 2025 at 23:57 MST