iFixit - Answers With Device "Samsung Galaxy Note 20 Ultra 5G"

Samsung Galaxy Note 20 Ultra 5G: How To Fix Samsung Galaxy Note 20 Ultra 5G Black Screen Of Death Issue

Fri, 25 Oct 2024 01:11:40 -0700

The phone has a black screen issue, it tends to vibrate and even works but the screen is off so you can’t actually see what’s happening, briefly everything is working but you can say the light is totally off. What can I do?

⟐ Answered October 25, 2024 at 1:11 MST

Samsung Galaxy Note 20 Ultra 5G: Ussd does not work

Wed, 25 Dec 2024 07:58:07 -0700

My phone does not work Ussd request it always says verify the number and try again

⟐ Answer edited December 25, 2024 at 7:58 MST

Samsung Galaxy Note 20 Ultra 5G: How do I replace the back camera glass

Wed, 27 Nov 2024 16:40:30 -0700

How do I replace the back camera glass only without replacing the entire camera housing?

⟐ Answer accepted November 27, 2024 at 16:40 MST

Samsung Galaxy Note 20 Ultra 5G: stuck pen, please help

Sat, 13 Apr 2024 06:40:57 -0700

i just use pen for one time. then put it back in. but it stuck so much. i think it's because of dust or hair. I feel so !#^&. what should I do. i don't want bring them to repair because it's new phone to me. just wanna use pen so bad, grr

⟐ Answered April 13, 2024 at 6:40 MST

Samsung Galaxy Note 20 Ultra 5G: Can I replace the BATTERY?

Fri, 26 Jul 2024 23:57:38 -0700

Can I replace the BATTERY? If so, How?

⟐ Commented July 26, 2024 at 23:57 MST

Samsung Galaxy Note 20 Ultra 5G: My WiFi and Bluetooth stopped working after update

Sat, 04 Mar 2023 12:09:14 -0700

This is was a slow process. At first just turning either one on and off again would solve the issue. Then that stopped working altogether.

I've tried going to Settings -> General Management -> Reset -> Reset Network Settings. didn't work.

I've tried turning on and off airplane mode, didn't work.

I've tried resetting the timezone and time settings, didn't work.

I really don't wanna try a factory reset, for it to not work at all.

It's possible it's a hardware issue, but what's weird is that when I connect my phone to Android Auto, it can sometimes turn on the Bluetooth through USB, which leads me to believe it's a software thing, especially since it started after the recent update.

How would I know if it's the Wifi/Bluetooth chips failing, or if it's a software thing?
To clarify, when I try to turn on either the wifi or the Bluetooth, it does the little gray thing to indicate its trying to turn on the modules, but it stays like that and never turns on.

I downloaded LogCat to see if I can get a hint of whats going on through the logs, but the most useful errors I could see were:

"WIFI_HIDL_FEATURE_DUAL_INTERFACE defined",

"SecIsDualInterfaceSupported vendor.wifi.dualconcurrent.interface swlan0 rValue :1", and "wifisharing chip mode"

⟐ Edited by author March 04, 2023 at 12:09 MST

Samsung Galaxy Note 20 Ultra 5G: Network Not Working even after Reset

Fri, 08 Aug 2025 08:21:41 -0700

I have tried all the troubleshooting ways to try and fix my wifi and bluetooth without touching my phone. I wanted to know where in the phone is the network module so I can buy a replacement and fix it. If anyone knows which part that is and where its located in the phone, I would be greatly appreciated. Thanks in advanced!

It says Model Name is SM-N986U1

⟐ Answered August 08, 2025 at 8:21 MST

Samsung Galaxy Note 20 Ultra 5G: Battery replacement Issue with Note 20 Ultra 5g

Mon, 10 Jun 2024 14:30:36 -0700

I replaced my battery on my note 20 ultra 5g with a replacement battery from ifixit, however when I plug the phone into a wall adapter (the original one that my phone came with) it doesn't show a charge at all, and when i try to boot it up, i get the Samsung logo then it just turns off. When I plug the phone into my laptop, I get a charge showing 35%, I left it for a few hours and it stopped at 41%, I booted the phone fully (to my home screen), but after the phone finished booting, it just turns off shortly after. I cannot boot the phone without it being plugged into the laptop.

I have checked connectors multiples times and diligently reseated each connector with care making sure everything is seated properly,

I followed this guide to a T, and backwards when reassembling.

⟐ Commented June 10, 2024 at 14:30 MST

Samsung Galaxy Note 20 Ultra 5G: Why doesn't my onboard microphone work?

Thu, 09 Feb 2023 03:37:06 -0700

I've tried using voice recording apps, making calls, and using voice chat, but nothing can pick up my voice, or even background noise. I tried Samsung's troubleshooting tips (checking for updates, rebooting, the usual) but to no avail. I'd like to try and replace the microphone myself if possible.

⟐ Answer edited February 09, 2023 at 3:37 MST

Samsung Galaxy Note 20 Ultra 5G: Green line on screen

Fri, 28 Feb 2025 12:05:02 -0700

How to remove green line on the screen

⟐ Answered February 28, 2025 at 12:05 MST

Samsung Galaxy Note 20 Ultra 5G: The screen replacement that you sell is original samsung part?

Mon, 07 Oct 2024 19:15:01 -0700

I would like to know before buy an a replacement screen in your store if it is a samsung original part?

⟐ Answered October 07, 2024 at 19:15 MST

Samsung Galaxy Note 20 Ultra 5G: How to clean the usb-c port on my mobile phone?

Sun, 21 Jul 2024 06:48:01 -0700

I have problems with the usb.c port of my mobile phone (note 20 ultra 5g), most likely dust. I have seen that one could use a spri on a wooden toothpick (like Stickum), but my doubt is: after using it inside the usb-c port, it will be sticky and then it will be worse. Alternatively, can you list other Stickum-type products that do the same thing but do not damage the mobile phone? Lária compressed I think worse would be a mini but strong hoover as an alternative Other ideas?

⟐ Commented July 21, 2024 at 6:48 MST

Samsung Galaxy Note 20 Ultra 5G: Weird model number, anything compatible?

Tue, 28 Nov 2023 14:31:35 -0700

I have a Samsung Galaxy Note 20 ultra 5g and the model name is SM-N686U when I try to look for replacement parts even on here, that model number isn't found, when I search online for the same model number I'm met with the same problem. I want to make sure before I replace the old battery and back glass that it's the correct replacement parts, has anybody ran into this problem before and if so what is/ isn't compatible with this model number?

Many thanks in advance for the advice.

⟐ Commented November 28, 2023 at 14:31 MST

Samsung Galaxy Note 20 Ultra 5G: Display Green Line issue after an update

Tue, 23 Jul 2024 03:24:10 -0700

There are some display Green Line issues 4 of them and they came after an update I deleted some apps and restarted again restarted in the safe mode accuracy and try all the other stuff that I showed in youtube but nothing work what can I do

Samsung Galaxy Note 20 Ultra 5G: Fingerprint scanner not working after Battery replacement

Tue, 13 Feb 2024 20:13:09 -0700

Hello all!

As the title suggests, I replaced my Note 20 Ultra 5G's battery, however the fingerprint scanner stopped working.

It says to clean off the screen and make sure it's dry, and try again. Then if I try again, it kinda works, I have to press quite hard to even get 10% registered, and the the on screen scanner bugs out and doesn't register my finger anymore.

However, when I check the sensor by dialing *#0*#, and do a normal test on my fingerprint scanner, everything says "PASS".

I'm at a loss, and would live some assistance and help!

Thanks in advance!

--EDIT--

I should mention that everything else on the phone works as expected, but the new battery drains faster than the old worn battery.

⟐ Edited by author February 13, 2024 at 20:13 MST

Samsung Galaxy Note 20 Ultra 5G: I just replaced the screen, and image and touch problems

Sun, 17 Aug 2025 16:11:02 -0700

Just replaced the screen, back glass, frame, and battery.

I've run the diagnostics, and that runs fine. But when I'm operating the phone normally, swiping up (i hate the real estate taken up by the button options for home, back, etc).

It also seems like I received a display for a smaller phone put under the note 20 ultra glass (the corners are cut off, but screenshots show the processer is putting out the full image).

I am unable to update the TSP Firmware (via *#2663# [says FW update failed).

My fingers don't register when I try to swipe down the notifications/settings menu, it might be an issue of my fat fingers, but i didn't have this issue before the screen swap.

⟐ Commented August 17, 2025 at 16:11 MST

Samsung Galaxy Note 20 Ultra 5G: The display cable of this phone is cut yet

Sun, 29 Sep 2024 14:52:29 -0700

The display cable of this phone is cut yet my question is whether the cable can be change possible

⟐ Answered September 29, 2024 at 14:52 MST

Samsung Galaxy Note 20 Ultra 5G: Can I get around carrier lock?

Sat, 11 Feb 2023 10:21:26 -0700

So I spent quite a bit of money buying this note from a guy on marketplace. I turned it on and notices it was through ATT. tried getting unlock codes but they said there's a balance still owed on this device. I've tried looking EVERYWHERE online to no avail. Is there anything I can do to get around this and unlock the phone?

⟐ Commented February 11, 2023 at 10:21 MST

Samsung Galaxy Note 20 Ultra 5G: Why dose my phone freeze and the keyboard it's a new phone

Tue, 01 Nov 2022 02:18:53 -0700

My new phone keeps freezing and slow the keyboard on the phone freezes and sometimes the letters don't let my type them

⟐ Answered November 01, 2022 at 2:18 MST

Samsung Galaxy Note 20 Ultra 5G: My phone is ghost touching without me even touching the screen

Sat, 06 Dec 2025 14:26:33 -0700

How can I fix my phone that's ghost touching buttons on my phone; I've done all the troubleshooting as far as restarting,cleaning, etc. Now I need to get done to the nutty gritty of the issue

⟐ Answered December 06, 2025 at 14:26 MST