<![CDATA[iFixit - Answers With Device "Redmi Note 9 Pro"]]> https://it.ifixit.com/Risposte/Device/Redmi_Note_9_Pro?rss=yes en-US Sat, 02 May 2026 18:22:08 -0700 <![CDATA[Redmi Note 9 Pro: Ho sostituito la batteria ma non carica lampeggia il led]]> Dopo aver sostituito la batteria con una nuova il telefono non carica è il LED lampeggia all'infinito senza caricare

⟐ Answered marzo 23, 2024 at 12:39 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/842014/Ho+sostituito+la+batteria+ma+non+carica+lampeggia+il+led https://it.ifixit.com/Risposte/View/842014 Sat, 23 Mar 2024 12:39:47 -0700 <![CDATA[Redmi Note 9 Pro: Foto offuscate... Quale delle quattro fotocamera sostituire?]]> Sul mio Xiaomi Redmi Note 9 Pro le foto fatte con la fotocamera posteriore vengono offuscate, mentre la fotocamera frontale funziona perfettamente.

Quale delle quattro fotocamere è da sostituire?

Aggiorna (03/09/25)

Block Image

⟐ Edited by author marzo 09, 2025 at 11:32 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/890658/Foto+offuscate...+Quale+delle+quattro+fotocamera+sostituire https://it.ifixit.com/Risposte/View/890658 Sun, 09 Mar 2025 11:32:56 -0700 <![CDATA[Redmi Note 9 Pro: Problema microfono forte fruscio]]> Ciao a tutti,

il microfono in conversazione e in modalità registrazione non funziona, praticamente c'è solo un forte rumore di sottofondo. In vivavoce invece va bene.

Ho provato a sostituire il microfono inferiore principale, ma senza successo. Addirittura lasciando la schedina staccata, quella che comprende microfono inferiore/ricarica il fruscio si sente lo stesso !

A sto punto credo sia il microfono superiore/secondario, ma a quanto mi è parso di capire non è sostituibile, sbaglio ?

Ho provato anche a riavviare il telefono in modalità provvisoria ma senza successo.

Attendo vostre considerazioni, mi dispiacerebbe buttare il telefono che tutto sommato va ancora bene, grazie mille !

⟐ Commented maggio 21, 2023 at 13:30 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/793026/Problema+microfono+forte+fruscio https://it.ifixit.com/Risposte/View/793026 Sun, 21 May 2023 13:30:59 -0700 <![CDATA[Redmi Note 9 Pro: During calls, the phone turns off]]> Why can't I do anything on the phone during calls? I can't hang up until the other party does

⟐ Answered gennaio 27, 2025 at 12:29 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/767729/During+calls,+the+phone+turns+off https://it.ifixit.com/Risposte/View/767729 Mon, 27 Jan 2025 12:29:49 -0700 <![CDATA[Redmi Note 9 Pro: Xiaomi replacement battery not working]]> My phone battery is addicted and I bought a new one and replaced it but I can't get my phone to work.

I bought an original BN52 battery that is compatible with this device.

The only thing that I see is the notification led blinking when I connect the new battery.

I already try to disconnect the battery, plug the charger, connect again and the behaviour is the same.

I already try 2 new batteries without sucess.

Any sugestions?

⟐ Answered febbraio 02, 2026 at 18:15 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/798889/Xiaomi+replacement+battery+not+working https://it.ifixit.com/Risposte/View/798889 Mon, 02 Feb 2026 18:15:04 -0700 <![CDATA[Redmi Note 9 Pro: Why is my back camera not working]]> My back camera is not working at all...it won't come up

⟐ Commented febbraio 18, 2026 at 22:42 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/787034/Why+is+my+back+camera+not+working https://it.ifixit.com/Risposte/View/787034 Wed, 18 Feb 2026 22:42:13 -0700 <![CDATA[Redmi Note 9 Pro: Why is my back camera is not working?]]> When launch the back camera then screen just show black and capture button not working, but if i switch to front camera it's work normally

⟐ Commented settembre 20, 2025 at 19:21 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/863977/Why+is+my+back+camera+is+not+working https://it.ifixit.com/Risposte/View/863977 Sat, 20 Sep 2025 19:21:13 -0700 <![CDATA[Redmi Note 9 Pro: Why does my phone not powering on?]]> My phone's screen suddenly had lines, after that it shut down on its own. Now, its not powering on. Please help.

⟐ Answered marzo 31, 2025 at 3:39 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/894033/Why+does+my+phone+not+powering+on https://it.ifixit.com/Risposte/View/894033 Mon, 31 Mar 2025 03:39:05 -0700 <![CDATA[Redmi Note 9 Pro: Why phone getting restarted continously?]]> After unlocking the phone ,it began to restart continously and after several minutes of restarting it stop and comes to lock screen.Then after unlocking the phone the same thing happens until battery dies

⟐ Answered giugno 24, 2024 at 2:59 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/856276/Why+phone+getting+restarted+continously https://it.ifixit.com/Risposte/View/856276 Mon, 24 Jun 2024 02:59:30 -0700 <![CDATA[Redmi Note 9 Pro: Why it is continuously Vibrating without any reason?]]> My device keeps vibrating continuously without any reason automatically and as well as does not opens directly after power off & reboot, I have to wipe memory and then it comes back to life after 4-5 hrs

⟐ Commented agosto 11, 2023 at 15:01 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/748649/Why+it+is+continuously+Vibrating+without+any+reason https://it.ifixit.com/Risposte/View/748649 Fri, 11 Aug 2023 15:01:07 -0700 <![CDATA[Redmi Note 9 Pro: Gyro sensor and accelerator sensor not working after water damage?]]> Gyro sensor and accelerator sensor not working,show abnormal values and also data transfer through charging port disable but phone is charging..

⟐ Answer edited marzo 01, 2024 at 18:33 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/839220/Gyro+sensor+and+accelerator+sensor+not+working+after+water+damage https://it.ifixit.com/Risposte/View/839220 Fri, 01 Mar 2024 18:33:49 -0700 <![CDATA[Redmi Note 9 Pro: Why my redmi note 9 pro front camera was error?]]> My redmi note 9 Pro front camera was not working, say can not connect camera

⟐ Answered agosto 29, 2023 at 9:41 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/806450/Why+my+redmi+note+9+pro+front+camera+was+error https://it.ifixit.com/Risposte/View/806450 Tue, 29 Aug 2023 09:41:50 -0700 <![CDATA[Redmi Note 9 Pro: Audio Chip/Codec not working.]]> My phone’s audio completely stopped working. None of the outputs or inputs work – headphone jack, USB‑C audio, the build-in speaker, Bluetooth sound, and the built-in microphone are all dead. I’ve reflashed the system and firmware, but the issue persists.

Looking at the logs, the system cannot detect any audio device, and /proc/asound/cards shows nothing. It seems the audio codec (audio IC) is not being recognized by the system.

Could you help me diagnose or repair this issue?

Ps: I bet the audio codec/chip/card (as you call it) is broken.

⟐ Answer accepted ottobre 15, 2025 at 11:02 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/921885/Audio+Chip-Codec+not+working. https://it.ifixit.com/Risposte/View/921885 Wed, 15 Oct 2025 11:02:47 -0700 <![CDATA[Redmi Note 9 Pro: Why mic is not working while in loud speaker]]> Mic and earpiece is not working when we use loud speaker

⟐ Answered settembre 11, 2025 at 1:41 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/916616/Why+mic+is+not+working+while+in+loud+speaker https://it.ifixit.com/Risposte/View/916616 Thu, 11 Sep 2025 01:41:35 -0700 <![CDATA[Redmi Note 9 Pro: Why screen changes colors of my redmi mobile?]]> My child has fallen down the phone while watching cartoons on it. After that its screen changes colors if twisted it. What would be the fault?

⟐ Answer accepted agosto 28, 2022 at 22:29 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/745511/Why+screen+changes+colors+of+my+redmi+mobile https://it.ifixit.com/Risposte/View/745511 Sun, 28 Aug 2022 22:29:33 -0700 <![CDATA[Redmi Note 9 Pro: le telephone ne charge pas The phone is no longer charging.]]> le telephone ne charge plus

Translation French - English

The phone is no longer charging.

⟐ Answer edited febbraio 02, 2026 at 21:48 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/938998/le+telephone+ne+charge+pas+The+phone+is+no+longer+charging. https://it.ifixit.com/Risposte/View/938998 Mon, 02 Feb 2026 21:48:36 -0700 <![CDATA[Redmi Note 9 Pro: Why is it not showing data transfer on my laptop only charging?]]> It is not showing on my laptop for data transfer only charging

⟐ Answered novembre 24, 2025 at 8:42 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/927660/Why+is+it+not+showing+data+transfer+on+my+laptop+only+charging https://it.ifixit.com/Risposte/View/927660 Mon, 24 Nov 2025 08:42:04 -0700 <![CDATA[Redmi Note 9 Pro: Near selfie camera the screen is slightly making green line]]> The screen having short green lines near the selfie camera whole screen working perfectly

⟐ Commented agosto 23, 2025 at 11:16 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/863263/Near+selfie+camera+the+screen+is+slightly+making+green+line https://it.ifixit.com/Risposte/View/863263 Sat, 23 Aug 2025 11:16:31 -0700 <![CDATA[Redmi Note 9 Pro: No my charger adapter not heat while charging]]> My phone's back camera is not working only when I open my camera black screen overs on video portion and I can't select anyy option because it freezes mut when I select and open front camera from hold and open it opens front camera and it works well

⟐ Answered luglio 18, 2025 at 5:53 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/908008/No+my+charger+adapter+not+heat+while+charging https://it.ifixit.com/Risposte/View/908008 Fri, 18 Jul 2025 05:53:58 -0700 <![CDATA[Redmi Note 9 Pro: How to fix no good quality camera]]> Back cam are fogging when i used it either picture or video.

⟐ Answered novembre 27, 2024 at 10:56 GMT-7

]]> https://it.ifixit.com/Risposte/Visualizza/878472/How+to+fix+no+good+quality+camera https://it.ifixit.com/Risposte/View/878472 Wed, 27 Nov 2024 10:56:54 -0700