Dust in Camera Module and Bluetooth problems - Xiaomi Mi A2 / 6X Questions & Answers

So its been well over 20 days since i purchased my Mi A2 from Amazon India and just a few days back Im starting to see dust flecks in my main camera. Sensor. I guess its something to do with the module and the back cover, as i can see a tiny amount of space there.
On contacting Xiaomi India, they said that I should give it for cleaning and my issue will be resolved.
I think that this issue will keep on happening and I want to replace the device.
There is also an issue with my Bluetooth wireless earphones. Android seems to show the battery levels incorrectly always. I checked it with other phones.
What do you guys think?
Do you also have the same problem?
And what about the Smart Lock? The customer care says to do a factory reset. Which didn't work. Obviously.
Meh.

Related

Samsung Galaxy Note 5 S-Pen Sensitivity Issue

Starting a new thread since I could not find any existing thread on this and it is quite surprising since this is a widespread issue and for the same reason Samsung service here in Melbourne even refused to acknowledge this is an issue! There logic seemingly being if the issue is present in the demo unit in the store as well, it is not an issue! Vodafone has also refused to honor the warranty, even though it is in the first month of my contract and they should be replacing the handset and dealing with Samsung, and have instead told me to provide them with an acknowledgement from Samsung stating it is an issue! Talk about deadlocks!
Now coming to the issue, I have found out that there are sensitivity issues when using the S-Pen on the bottom right and left corners of the screen. There are issue on the top part of the screen as well but they arent as serious. I would also request you to check the same on your device and report back if you are also facing the same.
To check, first get into diagnostics mode by dialing *#0*# and then go to the S-Pen tab.
1. As you can see in the video, the bottom right and left corners have definite and serious issues with S-Pen sensitivity. I found this out, and it is also a use case and one of the major reasons that I went for Galaxy Note 5, while taking a screen grab from the middle of the screen right until the bottom right corner. I just could not do it. As soon as the S Pen reaches near the corner, the sensitivity issue makes sure that input isn't recognized. Not only this, even when it manages to identify the touch, the tracking is random with the S-Pen having a mind of its own.
2. The second issue is while drawing on the top part of the screen with the S-Pen but this one is not as serious as the first one. You can see in the video that S-Pen loses sensitivity in one particular area of the screen. This is easily corrected though, by pressing the S-Pen harder on the screen.
This is apart from the lag and slowness issues that rear their ugly head every once in a while and in a phone which runs an Octa Core CPU with a whopping 4GB of RAM. This is my first Samsung in a long long time and it has left me disappointed again exactly like it did in the past whenever I bought a Samsung phone. To me the level of polish of the hardware on a device costing as much as this is simply not acceptable. What are your thought? Please report in this thread if you are facing the same issue as I am with the S-Pen.
https://www.youtube.com/watch?v=XN41nE1lWGI
I have multiple stand-alone S Pens and don't experience what you're describing with them or the one included with the device.
BarryH_GEG said:
I have multiple stand-alone S Pens and don't experience what you're describing with them or the one included with the device.
Click to expand...
Click to collapse
Strange because I could replicate it on all the demo devices in the store. That is their reasoning for refusing the warranty as well.
I'll say this, the included pen is more responsive on the display than pens that are pre-Note 5 so something in the pen and/or display has changed.
Does it mean mine has a problem then? I am wondering if anyone else can also confirm the same?
I can confirm the bottom left and right corner of my note 5 behave just like OP's does... but wouldn't have found out if he didn't mention it
alexcarterkarsus said:
I can confirm the bottom left and right corner of my note 5 behave just like OP's does... but wouldn't have found out if he didn't mention it
Click to expand...
Click to collapse
Thanks Alex. I found the issue because I could not take a screenshot which finished near the bottom corner of the screen. Now smart select is a headline feature of the phone and this hadrware oversight to be is just not acceptable. The Samsung service would not acknowledge it as an issue let alone do something about it. May be it is only on the first batch of phone. Who knows?
I checked my phone (SM-N9208 TW, mfg: will add later) and the bottom corners have poor tracking with the hover point flying off the screen when held above.
Overall this issue shouldn't affect the usability of the phone if you rarely use these areas since it's still possible though difficult to use the s-pen there.
Edit: I re-tested with my phone flat and s-pen vertical*. The s-pen can be used on the very bottom corners with precise movements, so I don't think will affect usability for most people most of the time.
*Having the s-pen on an angle can affect the tracking significantly as seen in your video. I think the only solution would be to modify the s-pen to track at the very tip. This would probably make the tip non-replaceable and/or more complex and expensive. If someone has time, try using the s-pen without a tip and see if/how it tracks.
Update: I tested a SM-N920W8 in store and it had the same corner issue.
I complained to Vodafone again and they decided to take the phone back. Back to trusty properly working iPhone 6s Plus 64GB. My last Samsung device no matter what the specs. I wouldn't be interested in one even if it will have a gazillion core CPU and few petabytes of RAM.
I have the same issue. Can anyone else, note 5 users confirm about this issue. (Bottom right hover issue)
I dont't face that problem
Edit: here is a screenshot
https://drive.google.com/file/d/0B5LZ1p_SFZ3faTFJNzBzZGlnbzA/view?usp=docslist_api
Mine does it a little bit.
It still passes the test so I believe it's within spec. I honestly don't see it being a warranty issue.
Sent from my SM-N920T using Tapatalk
Sometimes, it is the Cover magnet.
Sometimes, it is the Cover magnet. . Try to remove you phone from it and try the s pen in the touch area in question. It worked for me with in a leather flip cover. The same for the s note stopping error message.
same here
SM-N920C cihazımdan Tapatalk kullanılarak gönderildi
if you have magnetic casing will get such problems ....
or fake s-pen need to replace with original or better fake quality
My stylus is overly sensitive; so much that I can't write properly. All text is in continuation even when I lift the stylus off for whitespace. I even followed the article on adjusting the sensitivity of the S Pen by removing the click-button cover and adjusting the Potentiometer. However, the note 4 s pen is entierly different as it doesn't have any Potentiometer under the click button. Link to article:
http://forum.xda-developers.com/showthread.php?t=2191333
What annoys me most is that I never had this issue before I flew overseas last month. I started experiencing this issue after I came back and it has rendered my s pen useless. Has anyone found a way to adjust Potentiometer on the new S spen yet (it might be located under top cap but i'm not sure how to open it).
espionage said:
My stylus is overly sensitive; so much that I can't write properly. All text is in continuation even when I lift the stylus off for whitespace. I even followed the article on adjusting the sensitivity of the S Pen by removing the click-button cover and adjusting the Potentiometer. However, the note 4 s pen is entierly different as it doesn't have any Potentiometer under the click button. Link to article:
http://forum.xda-developers.com/showthread.php?t=2191333
What annoys me most is that I never had this issue before I flew overseas last month. I started experiencing this issue after I came back and it has rendered my s pen useless. Has anyone found a way to adjust Potentiometer on the new S spen yet (it might be located under top cap but i'm not sure how to open it).
Click to expand...
Click to collapse
I am having this same problem. Did you ever find a fix for it? Thank you!
Yes confirmation of problem
I found the same problem. If you try to draw a square in the S pen test mode you cannot draw a square in the bottom left or right corner. The square will turn into some kind of strange wiggle shape.
I live in Malaysia and went to the official Samsung head office service center and they confirmed this is a problem with all Note 5 models and the lady showed me her own personal Note 5 which had the same problem (actually worse than mine).
The service technicians said they do not know the reason for this problem. But as an electrical engineer I suspect there is some sensors in those areas which cause interference with the S Pen.

Rear camera-hardware detected, yet black image. Camera "bus" malfunctioning?

Rear camera-hardware detected, yet black image. Camera "bus" malfunctioning?
Hi
Half a year ago my girlfriend accidentally gave my Z3 Compact a rollercoaster ride in our washing machine (full tour). The screen broke, but it could turn on and everything looked fine (gave no errors) when connecting to HDMI.
Yesterday I received a replacement LCD, which gave it a new life. It seems that everything works except for the rear camera. When opening any camera-app, the HUD is visible, but image is black, and no error. If i switch to front camera, which works, and back to the rear camera, it shows a freezed image of the last image from the front camera.
I checked some debug-apps to see if it detects the camera-module, and it does. If it's connected, alle the specs of the camera is listed, and if disconnected, the module is not listed.
I then got a broken Z3 Compact from a friend, and I tested both rear camera modules in both phones. The modules are working in his phone, both doing the same black screen in mine.
I tried hard reset, PC Companion-repair, updates, clearing camera cache etc., but with no luck.
Do you have any suggestion to how I can fix this?
Do you know where on the motherboard I could look for dirt in relation to some "rear camera bus/chip"?
Thank you for any help!
Edit: And isn't it amazing that this phone works to this extend after 2½ hours in 60 degrees celcius (140 fahrenheit) warm water with soap and 1400rpm? Wow! (Btw., all panels were open, and screen totally broken, so water must have been everywhere in the phone.)
I have a similar issue on my partners z3c after the screen cracked, I have replaced the screen and it works great however the camera shows a black screen. I know the camera module is working as I have tried it in another phone. Having searched for this issue I seen it has effected quite a few others not only those who have opened their phone.
what software you used to debug so I can verify that the phone can also see the camera module
This is happening to me too a year down the line of ownership.
Replaced with new camera from eBay still black screen. Between your experience and mine of both testing the camera we've prices it's not the lens, so what could it be.
Need to fix don't know what to do
The camera module itself may work but the chip which handles the rear camera may be damaged even if the phone works pretty good.
So if the chip or anything else related to the camera is dead, you can even try thousands of camera modules from different phones on YOUR phone, none of them will work.
That's my opinion - guy's who work in electronical industry for 3,5 years now and have seen hunderds of differend kinds of damages on different stuff.
I see what you are saying however it would be nice to have an idea of where any chip/bus is that may be damaged to see if it xan be fixed or is replaceable.
romcio47 said:
The camera module itself may work but the chip which handles the rear camera may be damaged even if the phone works pretty good.
So if the chip or anything else related to the camera is dead, you can even try thousands of camera modules from different phones on YOUR phone, none of them will work.
That's my opinion - guy's who work in electronical industry for 3,5 years now and have seen hunderds of differend kinds of damages on different stuff.
Click to expand...
Click to collapse
zackariah said:
I see what you are saying however it would be nice to have an idea of where any chip/bus is that may be damaged to see if it xan be fixed or is replaceable.
Click to expand...
Click to collapse
Yes, you are 100% right but there's another thing.
In the present times, in a rush of miniaturization, there's a little chance of such reapair to be profitable. The chip/bus may be damaged but in fact not only one thing may be dead... I'm talking about tiny little resistors, capacitors, diodes, transistors (if there are any on the motherboard...) which are many. I'm not saying it won't be possible to repair the phone but without a proper diagnosis what is damaged... I'd be like looking for a needle in a haysack and everyone can tell you that only replacing the whole motherboard will be worth the time.
But still... this is an interesting case of malfunction... I hope you'll find a solution for this or at least someone else will do it for you for a reasonable price.

Front Camera Problem - Can't Connect To Camera

I just bought this phone. When I try to use the front camera I get an error: Can't connect to camera.
I've searched.
I've rebooted.
I've force closed the camera app.
I've cleared the cache and data.
I've flashed the Global Stable ROM.
I've updated the Global Stable ROM.
I've rooted.
I've tried freezing and uninstalling the stock camera app and replacing it with a third-party app.
I've tried flashing a different ROM. (Total failures, btw. Nothing but Error 7 issues.)
I've tried everything I can find that tells me how to fix the issue.
Is my camera screwed, or does anyone know of something that can fix it?
That sounds like everything I would have tried too. Some phones have hidden diagnostic routines in them. I wonder if this phone has diagnostics..
Honestly though, I'd return it before it's too late because it really should have worked out of the box. That camera sounds broken.
Settings » About phone » Tap to kernel info 4 times to get into hardware test, if you mean it by diagnostics. 27th line tests front cam; no idea if it makes sense since it launches the camera apps.
Mi MIX
7.5.4 Épic
Yeah, I've tried that too. Even in diagnostics it errors. Pretty sure the camera is either not hooked up or broken. I spoke to a US rep for Xiaomi. They won't warranty it because it was never launched in the US and I purchased it from a guy off Swappa. I guess I'll either have to live with it or open it up myself. Replacement cameras are $27 on AliExpress.
Thanks for the help.

main camera blurr

Hi,
After the first 2020 ota update the camera started to get blurred and now is completely useless.
So i looked at the changelog and the update "fixed" something related to QRcode reading. So they must have messed something up.
Anyone knows anything about it?
Model: ZE620KL 128gb rom, updated to latest firmware, rooted with magisk and with twrp.
Thanks.
Additionally, wide camera works fine so far. But still it is strange that sometimes the main camera works and right after few minutes it gets all blurr again.
Hello, I have the same problem. It looks like the update killed a part of the camera. Your OIS is broken now. You can either replace your camera (around $10) or, as I did it, you can try to tap on the camera module. It may fix it temporary. A little bump could also work.
I am having a similar issue. Autofocus works fine for images close to the camera. Seems to be related to the QR code update mentioned by @Gyplay.
My phone has been serviced 3 times during warranty (free). It just died 20 days after receiving it. Then, around its 4th month of life it stopped holding charge. Around it's 10th month it just died again. No falls, not a single scratch and no liquid spills...
Now I have been living with this issue with the camera for almost a year...
Never had issues with any of my previous phones...
Perhaps I was unlucky, but will never buy an asus phone again.

Question Front camera not working!

My front camera stopped working suddenly. Whenever I switch to the front cam in the camera app, it freezes. I tried changing various ROMs but the same result. Is my front camera busted? What is the likelihood of it being water damaged?
lifehacker69 said:
My front camera stopped working suddenly. Whenever I switch to the front cam in the camera app, it freezes. I tried changing various ROMs but the same result. Is my front camera busted? What is the likelihood of it being water damaged?
Click to expand...
Click to collapse
Try to flash stock ROM via PC and miflash.
If the front cam isn't working again in my opinion then hardware damaged.
Hey did you find any way to fix it?
abhiastic said:
Hey did you find any way to fix it?
Click to expand...
Click to collapse
This is a very big problem. Xiaomi fkd up big time. Users who updated their phones with miui 13 faced this issue. The service center guys are telling me it is a motherboard issue and asking 10k for the repair. Even though it is a faulty update that is the problem. Hundreds of users are facing this issue. I am thinking of registering a consumer complaint. Why should we pay for their mistake?
lifehacker69 said:
My front camera stopped working suddenly. Whenever I switch to the front cam in the camera app, it freezes. I tried changing various ROMs but the same result. Is my front camera busted? What is the likelihood of it being water damaged?
Click to expand...
Click to collapse
A lot of users (especially those manufactured in 2021) have this issue with front camera dying. I'm not entirely sure whether devices manufactured in 2022 have this issue fixed as far as I know, no one has reported having the front camera dead yet in those units but I think it is because of the device being new, we'll see.
According to users from Telegram, this happens because the thermal paste in the motherboard melted or disconnected. So heat plays a big factor with the front camera dying. Next symptoms, again according to users who reported, will cause the audio from the speakers to be lowered to the point where it is silent, next is screen dying and possibly bricking the phone.
Meaning, that even if you're on MIUI with a locked bootloader or on a Custom ROM, you won't be safe from the front camera dying. Thermal management has been a big issue with our device as even I can't prevent the phone from easily reaching 40°C. But, there are more reported cases of front camera dying on Custom ROM users or those that flash a different ROM frequently than those on Stock MIUI.
As for the fixes for this issue, only option is to go to the nearest Service Center and claim warranty (if applicable) or request for the motherboard to be fixed. Another option would be to go to a local repair shop and ask for a CPU Reballing of the motherboard.
For preventing this issue, I would say to never let the device get hot. I'd say at around 38-40°C would be the stopping point and let the device cool off. Following what Xiaomi's regulation on the recommended device temperature of 0-40°C found in safety thingy in About Phone (stock rom).
BigChungus321 said:
A lot of users (especially those manufactured in 2021) have this issue with front camera dying. I'm not entirely sure whether devices manufactured in 2022 have this issue fixed as far as I know, no one has reported having the front camera dead yet in those units but I think it is because of the device being new, we'll see.
According to users from Telegram, this happens because the thermal paste in the motherboard melted or disconnected. So heat plays a big factor with the front camera dying. Next symptoms, again according to users who reported, will cause the audio from the speakers to be lowered to the point where it is silent, next is screen dying and possibly bricking the phone.
Meaning, that even if you're on MIUI with a locked bootloader or on a Custom ROM, you won't be safe from the front camera dying. Thermal management has been a big issue with our device as even I can't prevent the phone from easily reaching 40°C. But, there are more reported cases of front camera dying on Custom ROM users or those that flash a different ROM frequently than those on Stock MIUI.
As for the fixes for this issue, only option is to go to the nearest Service Center and claim warranty (if applicable) or request for the motherboard to be fixed. Another option would be to go to a local repair shop and ask for a CPU Reballing of the motherboard.
For preventing this issue, I would say to never let the device get hot. I'd say at around 38-40°C would be the stopping point and let the device cool off. Following what Xiaomi's regulation on the recommended device temperature of 0-40°C found in safety thingy in About Phone (stock rom).
Click to expand...
Click to collapse
I am not paying anything. I am going to consumer court. This happened with poco x3 pro too and they all got either motherboard replaced or a new phone entirely.
I joined that telegram group and others too want a replacement.
lifehacker69 said:
I am not paying anything. I am going to consumer court. This happened with poco x3 pro too and they all got either motherboard replaced or a new phone entirely.
I joined that telegram group and others too want a replacement.
Click to expand...
Click to collapse
Welp good luck then. Yeah on Poco X3 Pro case it's even worse with the whole phone bricking. I think Poco M2 Pro has the same issue as sweet with the front cam dying situation too. I guess going for cheap options does sometimes bite you back.
lifehacker69 said:
I am not paying anything. I am going to consumer court. This happened with poco x3 pro too and they all got either motherboard replaced or a new phone entirely.
I joined that telegram group and others too want a replacement.
Click to expand...
Click to collapse
hi, is there any update on this issue? which telegram group are you in? I have the same issue.
pinngguu said:
hi, is there any update on this issue? which telegram group are you in? I have the same issue.
Click to expand...
Click to collapse
Redmi Note 10 Pro (MIUI 13 Update Failure)👎
You can view and join @Redmi_Note_10_Pro_MIUI13_Fail right away.
t.me
I have had the same issue with custom ROMs recently, but when I flashed the official ROM back onto my phone this morning, I got the camera functionality back. I then went through the process of flashing a custom ROM onto my phone and then the camera issue was back again.
I've been searching since last night on how to fix this? I had an Android 12 version of Evo-X on my Poco x3 NFC, and that worked fine, the issue only arising when I updated to the Android 13 version.
ElvPresidente said:
I have had the same issue with custom ROMs recently, but when I flashed the official ROM back onto my phone this morning, I got the camera functionality back...had an Android 12 version of Evo-X on my Poco x3 NFC, and that worked fine, the issue only arising when I updated to the Android 13 version.
Click to expand...
Click to collapse
Imho it could be a missing camera driver in that A13 custom rom. (I had this too with RN8 and A10 custom).
You can check the drivers with the app "Device info HW" and see how many camera drivers are installed under "supported"
If you do this with stock and custom A13 rom and you count less camera drivers on the last one, that could be the reason.
In the picture you see 12 camera drivers inside CrDroid 7.16
Elinx said:
Imho it could be a missing camera driver in that A13 custom rom. (I had this too with RN8 and A10 custom).
You can check the drivers with the app "Device info HW" and see how many camera drivers are installed under "supported"
If you do this with stock and custom A13 rom and you count less camera drivers on the last one, that could be the reason.
In the picture you see 12 camera drivers inside CrDroid 7.16
Click to expand...
Click to collapse
I've also been getting the same issue with A12 based ROMs however.
I flashed the default MIUI back onto my phone last night and its currently working as normal again.
Disappointing because stock MIUI is awful.
lifehacker69 said:
This is a very big problem. Xiaomi fkd up big time. Users who updated their phones with miui 13 faced this issue. The service center guys are telling me it is a motherboard issue and asking 10k for the repair. Even though it is a faulty update that is the problem. Hundreds of users are facing this issue. I am thinking of registering a consumer complaint. Why should we pay for their mistake?
Click to expand...
Click to collapse
Agree ... I went to service center few days ago . And they said they dont know the issue and dont have solution for it ... Now Xiaomi and me fcd up big time ...
Mattfun said:
Agree ... I went to service center few days ago . And they said they dont know the issue and dont have solution for it ... Now Xiaomi and me fcd up big time ...
Click to expand...
Click to collapse
Which country? They always say this.
My phone started the same thing now it only shows a blank screen with "System ui isnt responding message"
RAMBO29 said:
Which country? They always say this.
Click to expand...
Click to collapse
I'm sure the front cam issues originated from the Indian models (Note 10 Pro/Pro Max)
RAMBO29 said:
Which country? They always say this.
Click to expand...
Click to collapse
Malaysia , then i go 2nd time , they said it might be causes by motherboard malfunction.

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