iFixit - Answers With Device "Xiaomi Redmi Note 9 S"

Xiaomi Redmi Note 9 S: Why the phone keeps rebooting?

Sun, 24 Sep 2023 00:27:37 -0700

I accidentally jump on my once at the beach and now it sometimes restarts when I open a certain app or just randomly restarts when I'm on call

⟐ Answered September 24, 2023 at 0:27 MST

Xiaomi Redmi Note 9 S: How would I replace the volume button?

Sun, 08 Mar 2026 13:37:51 -0700

So after 2 years and 8 months, the volume buttons on my Redmi Note 9S quit on me. First, the down button stopped working and then the up button. They've lost their clickiness. I know I need to replace the hardware, and I'm worried it's going to cost me a fair bit compared to what I spent on it initially. I thought of sourcing the part and DIYing it myself. The only problem is I can't seem to find a guide or a video showing what I need to do for the volume button replacement. Any help would be much appreciated.

⟐ Commented March 08, 2026 at 13:37 MST

Xiaomi Redmi Note 9 S: Why does my signal change from 4g to 3g then back after 1-3hr timings

Wed, 17 Jul 2024 21:58:50 -0700

i had a redmi 8 before this note 9s and i have been getting this issue for months now. it especially affects my gaming as i use the phone as a hotspot since home wifi gets congested. it would change to 3g out of no where and cause me to dc in online matches. then it takes 2min to go back to 4g. so i always manually change to back to 4g before i take too long offline. any fixes or is it related to my 4g provider? country is uganda and provider is Airtel

⟐ Commented July 17, 2024 at 21:58 MST

Xiaomi Redmi Note 9 S: How to I make my phone work again?

Mon, 28 Aug 2023 17:40:29 -0700

I got salt water in my phone and now its not turning on not charging and literally doing nothing

⟐ Answer accepted August 28, 2023 at 17:40 MST

Xiaomi Redmi Note 9 S: I think the jack is working bad. What should I do?

Wed, 15 Jan 2025 15:46:02 -0700

Even the slightest contact with the part of the cable connected to the jack makes the music stop.

⟐ Answer edited January 15, 2025 at 15:46 MST

Xiaomi Redmi Note 9 S: Why does the battery drain to quickly? is it software or physical?

Wed, 19 Jun 2024 07:23:35 -0700

So i received this from my dad, i noticed the battery started draining a lot after the first week, and i did not hit the phone or put it in sunlight. i looked online and some say it was either bad battery or software bug so i even unlocked my phone just to use another ROM, also tried different versions of the original before unlocking. and nothing changed. still drained quick.

⟐ Commented June 19, 2024 at 7:23 MST

Xiaomi Redmi Note 9 S: Why in phone settings fingerprint option not showing?

Thu, 14 Dec 2023 14:02:10 -0700

In phone settings then go to passwords and security setting not showing any fingerprint option totally removed this option just showing face lock and other security passwords...

⟐ Commented December 14, 2023 at 14:02 MST

Xiaomi Redmi Note 9 S: Why my signal bad?

Fri, 03 Nov 2023 22:39:23 -0700

Why my signal very bad, even i'm already change my sim card?

⟐ Answered November 03, 2023 at 22:39 MST

Xiaomi Redmi Note 9 S: Why is my phone's turbo charge doesn't function anymore?

Tue, 26 Sep 2023 07:25:33 -0700

battery drains fast and overheats.

⟐ Answered September 26, 2023 at 7:25 MST

Xiaomi Redmi Note 9 S: Why my brothers phone boot looping?

Wed, 14 Dec 2022 02:52:25 -0700

My brother attempted to downgrade the firmware but after he installed the firmware the phone shuts off and started bootlooping.

⟐ Answered December 14, 2022 at 2:52 MST

Xiaomi Redmi Note 9 S: The internet is not working well on the 4G network.

Wed, 11 Mar 2026 10:36:25 -0700

Why is the internet reception on my 4G mobile data weak even though the signal strength is strong? When I replace the SIM card in another device, the internet connection is excellent.

Xiaomi Redmi Note 9 S: Why is my phone charging very slow?

Tue, 06 Aug 2024 02:08:30 -0700

My phone started randomly charging very slowly.. randomly quick charge stopped working anymore.. i tried changing charger and charging brick and even cleaning the charging port.. but none of that worked.. please help

Xiaomi Redmi Note 9 S: Why is my touch screen spam clicking everywhere

Sun, 12 Nov 2023 06:35:03 -0700

Sometimes it going crazy and touch all over the screen happened more when phone got worm

Xiaomi Redmi Note 9 S: phone showing device is locked ll take 200 min 1 wrong attempt help 🙏

Sun, 29 Oct 2023 09:35:52 -0700

please help

phone showing device is locked ll take 200 min

i did only 1 wrong attempt.

one month before its was 15 min

then it increase like 200 min to open

i did only one wrong pattern attempt.

please please help

Xiaomi Redmi Note 9 S: My phone automatically shutdown immediately after the screen goes off

Sun, 25 Sep 2022 23:03:18 -0700

My phone automatically shutdown immediately after the screen goes off, but with the screen on, you can use it for the whole day

Xiaomi Redmi Note 9 S: My wifi hotspot Bluetooth not working

Wed, 29 Jun 2022 06:35:28 -0700

Unable to use these options