[HELP] New PCB doesn't work - Xiaomi Redmi Note 5 Pro Questions & Answers

Hi there folks,
My mic audio quality became very crappy, I've tried changing ROMs, cleaning it, but no success, so I bought a new PCB (the one for charging, mic, speakers and P2, not the main one).
I installed it and charging seems to be working fine, but no audio comes out from the speakers and the mic records audio in a very very very low volume (only in my PC with my speakers at high volume I can hear something).
I think it's software related, but I don't know where to start. I don't want to flash my ROM again because I did it this week already, I'm running Havoc OS 2.9 with Magisk, is there a way to fix it from system or recovery? Like reinstalling drivers in Windows or something like that.
Thank you in advance.

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[Q] Bad radio - can't track down the answer

Hi everyone, hope someone can point me in the right direction. Flashed OmniROM on an HTC desire (bravo) and it's working great. Only problem is when making a call, no sound comes out of the earpiece. If I put it on speaker phone it's fine, and apparently when it's not on speakerphone the mic works fine, people can hear me on the other end, but I can't hear a thing. Suspect the radio is the problem here so need advice on which radio to use (especially for internet use too) and how to install it. I have Ext4 bootloader installed too. This is my interim phone after my Samsung Galaxy S2 died completely (will not power up since it died during normal operation), which looks like it would need a JTAG burn to fix, right after I successfully replace the USB board. Anyway, any help appreciated. Thank you.
Can it not be that the earpiece is simply broken?
Does it work for instance over Wi-Fi calling e.g.Skype? Can you get any sound to come out of it?
Was it working before you flashed the ROM? If you backup and flash different ROM or better yet back to stock, does it work?
Just want to do logic tests before concluding it's a radio issue, which I'm not sure it is.
So confirm above before playing about with radios as they carry a but more risk. To flash radios, you need to be S-OFF, and use fastboot commands. Check the md5 sum of the radio.img before flashing because a bad radio flash= proper brick.
There is no recommended radio, though latest one should generally be better. Depends on individual signal quality so different people get different results
Good point. Got around to thinking the same myself. Found a replacement speaker on ebay (local seller) which I ordered (it's cheap). Meanwhile searching the market for a speaker tester.
Desire adr6300 running cooldroid
old thread, but I have a similar but slightly different issue and it doesn't appear to be the radio
Cant hear anyone on call, they can hear me
Works on earphone - can hear caller no probs, they can hear me ok
If i switch to speakerphone during the seemingly silent call, as soon as some noise (voice or otherwise) is picked up from other end, then the speakers start screeching - quickly getting to max volume. Goes silent again if speakerphone option switched off.
Hadn't flashed anything when it started to my knowledge, but had been installing various things. Nothing significant to my recall.
Tried re flashing cooldroid after clearing caches - same
tried installing mildwild - same
reflashed radio (it is the latest and been on ages) - same
Cleared everything except sd data but including ext partition and reflashed coildroid - same.
Oh - audio tracks play fine :/
Help.
Slight update on this.
After trying different roms and reflashing the later radio:
Flashed an older radio on it that i had on it before - same.
Radio_32.56.00.32U_5.17.05.23
Radio_32.56.00.32U_5.17.05.08
Seems like mic (others hear me) ok when used normal, but I cant hear them
but some sort of feedback squeal when i put it on speaker voice does come through quietly along with the screeching (no its not the missus), the screeching only starts as soon as some noise is picked up through sending phone
When earphones connected (hence mic and speaker on phone disconnected) - all fine.
So possibly some sort of short in the ear speaker unless someone who knows the hardware better than me can suggest something else
(Do these have noise cancelling mic which is disabled when earphones are connected? - must look that up when I have some time again)
Update
it does seem to be simply a failed ear speaker
Update
Got around to replacing the ear speaker (less than £2 delivered from ebay)
SORTED
dead easy job - 10 minutes to replace and all ok now.
No sound through ear speaker now sorted
This is for ear phone - but shows how easy it is
Speaker is just under the top board - no cable just prongs and stickied in place.
http://morganbye.net/blog/2012/08/htc-desire-headphone-jack-fix/

[Q] Soundabout app issues.

Hello everyone !
My M8 went mad today. It recognizes all headphones/earphones except the stock one that came with the device. The stock one works perfectly fine with all the devices except my M8. That sounds really strange, but it did happen.
I googled some forums and found that soundabout app on the play store could solve this issue by routing the audio to headphone jack. It worked.
I was tinkering with the settings of the app. I routed the audio to the earpiece(top speaker) only.
I'm somewhat skeptical that the top speaker now has less volume compared to the bottom one, when playing music/videos.
Does this mean that I have a partly damaged speaker ?
Also, can tinkering the settings damage the hardware(speakers) in any case ?
Thank you for reading.
Tej XFire said:
Hello everyone !
My M8 went mad today. It recognizes all headphones/earphones except the stock one that came with the device. The stock one works perfectly fine with all the devices except my M8. That sounds really strange, but it did happen.
I googled some forums and found that soundabout app on the play store could solve this issue by routing the audio to headphone jack. It worked.
I was tinkering with the settings of the app. I routed the audio to the earpiece(top speaker) only.
I'm somewhat skeptical that the top speaker now has less volume compared to the bottom one, when playing music/videos.
Does this mean that I have a partly damaged speaker ?
Also, can tinkering the settings damage the hardware(speakers) in any case ?
Thank you for reading.
Click to expand...
Click to collapse
I think that the earpiece speaker is actually less powerful than the bottom speaker. I use SoundAbout myself as I have an issue with one of my friends old stereo's. The phone doesn't recognize that I have plugged in the aux cable but it only happens with that stereo. So I have to use the SoundAbout app to change the setting to Wired Headphones.
I'm not sure if tinkering setting can damage the speakers, but I have damaged the bottom speaker myself by flashing one of the first CM12 nightly's that came out. The speaker is quite easy to replace yourself and same goes for the earpiece.
Hello,
I have nexus 5 with stock 5.1.1 not rooted.
I started to use soundabout because my phone didn’t recognize AUX-IN from my car audio.
Everything was ok for long time till yesterday.
Now, after I will use soundabout I can’t hear any call conversation. I need to restart nexus.
I am wonder If someone know some similar program that I can test.
Regards from Poland

Naugat and USB DAC sound distortion

Hi
I got Nexus 7 installed in my car. Only device connected to it is Fiio E10k.
RR, and pure Nexus, both clean, running either on stock (whatever came with it) kernel or Glitch or ElementalX have same problem. No matter which player I use (YouTube too). I also run it on headphones from power bank to make sure it's not power supply related.
Sounds like random distortion, easy to hear especially during quiet parts of tracks (as long as some music is playing).
I assumed it's naugat related, as Android 6 doesn't have that problem (either stock with timurs or cm13 with ElementalX).
Any idea how to solve / troubleshoot problem like that?
I tried USB audio player pro with Los, and I don't hear distortion so far.
It made me think it's driver related. Maybe it's forcing different bitrate or something.

Orio update made my 3t useless

I had updated to orio, and suddenly my mic gain was lost. and another problem i am facing is my pc not recognise the device anymore.
I had tried with a headphone, still mic not working.
Then tried with a blutooth mic, worked.
Replaced the mic and charging port strip.
Nothing got solved
Really orio update made my 3t useless.
Even tried downgrading to noughat.. Still no change
rinto4u said:
I had updated to orio, and suddenly my mic gain was lost. and another problem i am facing is my pc not recognise the device anymore.
I had tried with a headphone, still mic not working.
Then tried with a blutooth mic, worked.
Replaced the mic and charging port strip.
Nothing got solved
Really orio update made my 3t useless.
Even tried downgrading to noughat.. Still no change
Click to expand...
Click to collapse
Maybe that's a hardware problem?
Then why headphone mic not working.?
and i had replaced the mic strip also
Anybody else having same problem.?

Sound issues with 3,5mm headset on usb c (adapted), electrical crack on (un)plug then

Hi
just set up the device and all went fine, trying youtube music for the first time.
after some seconds the music disappeared with crackle sound through ehadset on highest volume.
unplugging and replugging the 3,5mm headset through adapter that came with device on usb c there was an electrical crack sound in the headset when un- and replugging.
closing the app and relaunching worked for a short time then sound disappeared on one ear. same crack in ears on (un)plugging.
second headset no difference, but then it works without any issues when using headset volume just one step below max volume.
so this is a known issue on that device, software thing or hardware thing?
evreything else is fine, should we cross check built in speaker on highest volume for crackles to chekc the hardware or do headset through usb c and built in speaker run throught two different output stage/amplifier circuits?
thx for any help
Yea this is happening. There is another thread here also talking about it. It drives me crazy... Seems to be software related (hope so), as some people said installing another rom solves the issue. I also noticed (at least until now) that the problem seems to involve instagram, everytime I had this issue, I checked and instagram was opened on background. I don't remember having the issue when I close instagram beforr plugging the headphone. Not sure about the relation though, still needs to test more.
I will install xiaomi.eu rom soon to test if this happens there also.
Btw, what miui version are you running?
Sent from my Mi 9 SE using Tapatalk
Whatsapp aswell is a big issue. Some people said replacing the typec/jack adaptor works.. but i dont have another one for the moment to test.
ah, just saw the other thread, 2 sites already
so at least no hardware issue, at least not the device, maybe the adapter
thought about buying bluetooth or usb headset anyway as i think even if only some grams the 3,5 on the adapter always tears a little bit on the cord/usb c plug over weeks/months/years and might affect the port
after a restart and reinstalling youtube music i could not reproduce it anymore
have been listening half an hour music without any issues and had a phone call another 25 minutes with headset without sound issues
running global version with
global 10.2.9.0 PFBEUXM
while PFBEUXM should stand for eu anyway?
is there a way to flash another official rom without rooting/unlocking the device and loosing warranty?
thx

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