iFixit - Answers With Device "Samsung Galaxy Note 20"

Samsung Galaxy Note 20: The microphone does not work after battery replacement

Thu, 27 Mar 2025 13:05:13 -0700

The microphone doesn't work after replacing the battery. The rest of the phone works fine, including the call microphone and speaker, but the recorder or WhatsApp microphone isn't detected by the phone.

Samsung Galaxy Note 20: My samsung s 20 can't be turned on

Mon, 12 Aug 2024 12:42:29 -0700

When charging, the charging indicator turns on, but when I press the power button, the phone won't turn on

⟐ Commented August 12, 2024 at 12:42 MST

Samsung Galaxy Note 20: How do I turn off maintenance mode when a passcode was never set up

Fri, 22 Mar 2024 19:33:49 -0700

Phone was put into maintenance mode and now it’s asking for a passcode to get out of it and one was never set up. What do I do?

Samsung Galaxy Note 20: T9000 destroys back cover? Possible solution?

Mon, 16 Oct 2023 12:06:26 -0700

Hello there! I have fixed many phones with glass back covers, but this Note 20 was my first device with a plastic battery cover. I used my T9000 liquid glue that use for almost all repairs but this time, it desolved the color layer of the back cover? Did I do something wrong here and have you had this issue before? Thanks😉

⟐ Edited by author October 16, 2023 at 12:06 MST

Samsung Galaxy Note 20: Why my screen black

Sun, 07 May 2023 17:01:55 -0700

The screen become black without failing

Samsung Galaxy Note 20: اقوم بتشغيل الجهاز يعمل بعض من الدقائق ثم يطفئ لوحده

Mon, 16 Jan 2023 14:44:31 -0700

او عند وضع شرائح sim

Samsung Galaxy Note 20: Can you replace a broken camera flash LED on a Note 20?

Sat, 23 Jul 2022 21:25:18 -0700

Can you replace the Flashlight/Camera flash LED on the logic board of a SM-N981U/Note 20 5G??? Or do you just have to purchase a replacement logic board??? I damaged the LED during a rebuild and was hoping someone else had has the same thing occur...

⟐ Edited by author July 23, 2022 at 21:25 MST

Samsung Galaxy Note 20: No Display on note 20 5g

Sun, 24 Oct 2021 23:21:03 -0700

Screen remains black on my note 20 5g. It vibrates and makes notification sounds, will take screen shots. WILL NOT COME ON TO HOME SCREEN. Update, phone will come on if i use power cord, this is what i now see

. Please help, it went snowy on edges of screen while i was using it ,buttons would not respond, screen then went black, did a forced restart, then got full screen snowy with phone plugged in. Is this a display failure or another issue.

⟐ Edited by author October 24, 2021 at 23:21 MST

Samsung Galaxy Note 20: Note 20 5G (not ultra): Flex cable related to SIM issues?

Sat, 02 Oct 2021 16:47:37 -0700

(N981U) One end of the “thin” flex cable connects on the main board, and the other end connects down towards the bottom of the phone (the end with the charging part). Since this is a 5G version, the cable is actually a "T" cable, with a connection over to the 5G antenna on the side of the device (below the volume and power buttons). Here's the questions:
(1) besides the 5G, what does this cable do? If the cable is removed from the phone, what won't work?
(2) if the cable is connected top and bottom, but not on the 5G end, will it cause any problems besides 5G not working?
(3) Can this cable cause SIM issues?

Why am i asking? because while changing the battery i wrecked this cable in two ways: (a) mangled the 5G connector while taking things apart, and (b) mangled the cable connector on the main board end while putting things back together. I can change out the cable, no problem, except what's worse is I'm pretty sure I (c) hosed the main board connector as well. So, I'm running the phone without this cable at the moment, and USB charging isn't working, which might make sense (but it’s charging wirelessly, so this is fine for now). the *real* problem is that I'm having SIM issues. trying to figure out if SIM issues make sense for this cable, or if there's something else wrong I need to find?