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Hi,as a matter of I needed a new phone, I bought a MDA Vario 2.
I found some problems like when you press the wakeup botton it takes up to 3 sec to show the display on.
Another one is the camera,is too dark anywhere with a bit of darkness,even using the night mode on day still quite dark.When moving the camera is like flashing the screen quick and chaning the adjusments of the colors, :| Faulty or damaged???
I tried with differents roms but the camera still doing that and the power button as well.
Hi everyone, welcome to the next thread of mine where I would like to share with you an interesting case of a'faulty' proximity sensor. The issue with the sensor started a few weeks ago (I own my defy for a few months) and the problem I had with it was that sometimes during I was making a call the screen was not being turned off, and more whats more annoying - the screen was never turned on again after finishing the call.
I do not have a screen protector and the screen glass is original.
I downloaded an application that showed the state of the sensor and after a many examinations i found out that many times the sensor does not distinguish between the states of being covered and uncovered.
I tried everything - factory reset, clean installations, different ROMs - nothing helped. The only thing that helped a little was a tweak availale in the CM7 ROM by Quarx (not available in the STABLE CM7 though!) in the screen settings menu -which forced the screen to be turned on after finihing a call, and I could also set the power button to end a call in the accessibility options. So this helped but did not solve my problem.
Fortunately, after many questions asked on so many threads, the user monecafe PMed me with a link to a video where its clrealy shown what is the problem and how easy it is to fix it!
without sayng more - here is the solution for anybody experiencing this issue:
http://youtu.be/uMk1S90MjbY
I hope this helps !
& a BIG THANK YOU to monecafe who sent me this video
this is great, very simple solution but...
how will that affect the water resistant feature of our defys?
try turning off auto-brightness
posting to say... try turning off auto-brightness (worked for me)
I used to have this problem. Stable CM7.2 solves this issue for me. I used to get the screen to turn on before by just rubbing the area with the proximity sensor with my thumb as if it was dirty.
i still have this problem. , after the Waterproof failed with my phone ( i dont leave it in water, i just wash it !! the proximity sensor failed too when i make a call screen is black cant see anything..so my question is if i change the screen touch proximity sensor work?? or its on the board ? where is the proximity sensor place?..how can i solve this problem by myself.
i saw the video but not solve the problem..
i back to stock ROM _there_ if i press power button the screen back but in coustoms ROMs the screen off not back till remove the battery!! any software make screen on at call and disible the proximity sensor ?
thank you inadvance
dlshad said:
...if i change the screen touch proximity sensor work?? or its on the board ? where is the proximity sensor place?
Click to expand...
Click to collapse
No, it's on the board.
Auris 1.6 vvt-i said:
No, it's on the board.
Click to expand...
Click to collapse
THANK YOU PROBLEM SOLVED ITS WAS ABOUT A SMALL PLASTIC IT WAS OFFICER OF WORK PROXIMITY SENSOR A SMALL PLASTIC!! THANK YOU ALL THIS VIEDO HELPED ME TOO AT TIME 2:50
http://www.youtube.com/watch?feature=endscreen&NR=1&v=5eiFQ39Ypmc
CAN I GET THE TECHNICAL GUIDE(MAP) OF BOARD?
I also have problems with proximity sensor. With pressure on the screen where the sensor is located it is working again.
So I can believe that changing the screw pressure might solve the problem. But what is the initial reason for this? It is not a pressure sensor!
Hello All, I've been using the proximity sensor app on my DHD for quite some time now... LOVE IT ! However, now when I open the app & tap on Start & cover the proximity sensor on the phone, there is NO RESPONSE... Meaning the msg stays FAR... It DOES NOT change to NEAR.... Can anyone help me out ? CHEERS !
Proximity sensor Star N8000
asimriz said:
Hello All, I've been using the proximity sensor app on my DHD for quite some time now... LOVE IT ! However, now when I open the app & tap on Start & cover the proximity sensor on the phone, there is NO RESPONSE... Meaning the msg stays FAR... It DOES NOT change to NEAR.... Can anyone help me out ? CHEERS !
Click to expand...
Click to collapse
Hello all,
My 1st post. Pls i dont want any lectures on chinese clones, thats what some of us can afford! i Just got a Star N8000 which is a clone of a Samsung Note. I LOVE the phone. The only problem is that when make a call lets say to check voicemail, the screen goes black, the proximity sensor flashes continuosly (small red flashes) & nothing i do brings the screen back unless the call ends from the other side or i take out the battery. I dont want to root my phone just yet. It uses a tmd2771 proximity sensor. HELP! anybody
Solution??
Davyin04 said:
Hello all,
My 1st post. Pls i dont want any lectures on chinese clones, thats what some of us can afford! i Just got a Star N8000 which is a clone of a Samsung Note. I LOVE the phone. The only problem is that when make a call lets say to check voicemail, the screen goes black, the proximity sensor flashes continuosly (small red flashes) & nothing i do brings the screen back unless the call ends from the other side or i take out the battery. I dont want to root my phone just yet. It uses a tmd2771 proximity sensor. HELP! anybody
Click to expand...
Click to collapse
Found a possible Solution suggested by a supplier on Amazon;Switch off the phone - Hold power button & volume down button
simultaneously to bootinto factory testmode - use volume swith toscroll thru to 'test report' - select with the home key - scroll down to 'PS calibration' - select it then scroll to 'do calibration' let it do the calibration till it gives OK.Go back to 1st menu & reboot.
Was only partially successful forme, it may work for you.
Davyin04 said:
Found a possible Solution suggested by a supplier on Amazon;Switch off the phone - Hold power button & volume down button
simultaneously to bootinto factory testmode - use volume swith toscroll thru to 'test report' - select with the home key - scroll down to 'PS calibration' - select it then scroll to 'do calibration' let it do the calibration till it gives OK.Go back to 1st menu & reboot.
Was only partially successful forme, it may work for you.
Click to expand...
Click to collapse
I have the same problem with proximity sensor tmd2771 my phone is htc one x clone (E1911)
i make the calibration but its still have the problem it saws me the sensor goes up and then goes down from itself and at the calls the screen goes black and opens again from itself is there a solution for that???
Davyin04 said:
Found a possible Solution suggested by a supplier on Amazon;Switch off the phone - Hold power button & volume down button
simultaneously to bootinto factory testmode - use volume swith toscroll thru to 'test report' - select with the home key - scroll down to 'PS calibration' - select it then scroll to 'do calibration' let it do the calibration till it gives OK.Go back to 1st menu & reboot.
Was only partially successful forme, it may work for you.
Click to expand...
Click to collapse
Is this applicable for Motorola Defy or for the Chinese clone?
I tried this on my Defy running JB 4.1.2. I cannot get into the "factory testmode" even after pressing the VOL down key at boot up.
I just get a screen with an exclamation and the android bot.
Nothing happens after that.
BTW: What size of screw driver should I use to perform the trick in the video posted by the OP.
Not applicable to original defy
Sent from my MB526 using xda premium
Holy sh't it worked <333333333333
I cannot believe. IT WORKS. Its bugging me from the start..
your_login
thank you for the useful posting
queBurro said:
posting to say... try turning off auto-brightness (worked for me)
Click to expand...
Click to collapse
Yes finally this seems to be working for me too. Thanks
Thank you for so excelent video. I have same problem but just for sometimes. I will check will this help.
Can anybody post this video on dailymotion or any other video hosting site as youtube is blocked in my country. I really would appreciate that as I am having problem with my Desire HD's proximity sensor.
Hi everyone,
My phone display is not waking up by double tap or by power button and hence i'm not able to use the phone. Rest of the phone is working fine.
I'll be grateful if somebody could help me out on this issue.Thanks in advance.
Same is the case with me. I was asked to try resetting any changes made in the Performance menu. Try it, this may help.
Sent from my Yu Yureka (AO5510), from the XDA Android App.
Hi there,
Please wait until mods will move this thread to the device specific forum for more relevant answers.
Stand by
suri68 said:
Hi everyone,
My phone display is not waking up by double tap or by power button and hence i'm not able to use the phone. Rest of the phone is working fine.
I'll be grateful if somebody could help me out on this issue.Thanks in advance.
Click to expand...
Click to collapse
Please explain more clearly-
If your phone is not waking up by double tap or by power button, does it wake up on an incoming call ?
How can you say that rest of the phone is working fine ?
YUREKA YU screen blacked out after reducing brightness
My phone display is blacked out after i reduced the brightness bar... can anyone help how to enable the screen
Flash a torch at tip of the phone near the sensor....then you have to be quick to increase the brightness
As someone reported, if you enable automatic brightness and color correction and reduce the brightness to the lowest, the screen would switch off forever. The only way back is a factory reset or restoring an backup.
just managed to fix this
I was in a real hurry yesterday and must have accidentally set brightness to all 0. And then bam..black screen
here's how i fixed it.
Downloaded this: http://droid-at-screen.ribomation.com/installation/
This mirrors the phone screen on pc using the jar file. Needs adb debugging to be enabled and accessible from pc.
Doesnt allow you do send touch inputs though.
Probably other solutions exist, like miracast etc. But the above app was my first try and it worked.
I kept my super awesome OPO next to the yureka, as a reference for screen position.
looking at the yu screen on pc, i activated, logged in to the phone, and then pushed my brightness up. All on a blank display. Also doing the same in parallel on the OPO, for reference point.
And, the yu screen lit up.
(if not this, may have to edit some system files, but didnt work in my trials..or backup device and then factory resent and then restore back)
How to fix screen goes dark after manually setting brightness zero
Almost all users are facing this issue. If you manually move the brightness slider to low (extreme left) the screen goes completely dark. You will not be able to see the screen. I tried it but kept the finger on the slider at all time so that I could move the slider and get the right screen brightness.
If you had manually changed the brightness to low and removed your finger from the slider. You sure are looking at a blank screen though the phone is still active. To fix it you will need to blindly follow these instructions. Your phone screen is dark, you will not see anything, unlock the phone (hope you are using swipe to unblock). Once done use two fingers to swipe from top screen to bottom. Note you will still see a blank screen, now tap and hold the finger in the center screen a slightly above the volume down button line – that is where the brightness slider is. If you don’t see the screen lighting up, tap again around the same area, you will get.
ok
suri68 said:
Hi everyone,
My phone display is not waking up by double tap or by power button and hence i'm not able to use the phone. Rest of the phone is working fine.
I'll be grateful if somebody could help me out on this issue.Thanks in advance.
Click to expand...
Click to collapse
Change rom
Slight clarification
sunny765 said:
Flash a torch at tip of the phone near the sensor....then you have to be quick to increase the brightness
Click to expand...
Click to collapse
This was the exact problem I faced rather than as mentioned every where fix for
Proximity sensor .Tourch solution is the quickest one to resolve it.
In my case I used another smart phone to put light on yureka just there where microphone or message notification led is there.Miraculously it works yureka reflect back then
You bring back normal brightness.Explaining this as original and was too short to
Comprehend easily.
9111710426
Plz off adoptive brightness
Sent from my AO5510 using XDA Free mobile app
Go to Settings>Display.
And turn off the Adaptive Brightness.
suri68 said:
Hi everyone,
My phone display is not waking up by double tap or by power button and hence i'm not able to use the phone. Rest of the phone is working fine.
I'll be grateful if somebody could help me out on this issue.Thanks in advance.
Click to expand...
Click to collapse
Though this issue may have been solved , the problem mostly is the proximity sensor setting. In dialer, dial *#*#7769#*#*.
This is the setting/calibration window. Press start and keep your ear to the sensor. Remember the value and press exit. Mine was 49.
please help me i ve done some mistake in flashing the yureka...i was installing lollipop on yureka by cmd after flash is done i ve disconnected my device after that my phone was not switching on i ve opened it and take the help of some pins inside my phone got detected in pc and charging led was coming...charging sound was also coming...but the display is black it is coming like blue screen and off coming and going please help me to get my phone back
Hi ppl my E7 start giving a few toutch screen problems a few days ago. At fist it start unlocking the screen and opening apps and doing calls on its own when on my pocket what it never did before since i bought him months ago. The when i was playing heartstone the toutch screen become totaly crazy no leting me do any grab and drag options e clicking screen at randow :S After a few turn screen on/off it become ok again.. But after a few minutes it hapend again :S when form tha moment it was never the same.. sometimes stops from responding other can do the drag up action to unlock screen others cant drag items others it just starts clicking like crazy on screen on its own.. Had a few power on/off.. Problems continues.. Had a factory reset problem seem a little better but not much.. juxt stop clicking on its own now but cant do drag actions across full screen. Now i installed a toutch screen test app. Found that a part of the screen is not responding (or is responding really really bad like a dozen pixels only in a finger from top to buttom size area) in a paint test... the lenght of a finger.. from top to bottoum near the middle screen (Landscape mode). Cold it be a software issue on the rom ? i did installed some suspecius software (im rooted) a few times could it have damage the rom or the touch drivers or controls in a way the reseting it wont fix? could installing other rom fix it ? Could it be that the screen got out of calibration or something like that ? or its really an hardware issue ?
if its hardware is it cheaper just to exchance the touch screen since the screen doesnt have a single scrach? Or replacing the touch panel is the expansive part when screen breaks? Please any idea is welcome even if little help. Thx for any answer in advance and sorry for my bad english :S im Portuguese
Hello,
I purchased an Mi A1 on 20th last month from an offline shop, and on the second day of use the display went blank (Could see lights on buttons, could use the touch, but no display), I raised a complaint and got a replacement from the store after Mi surprisingly approved it.
Now again I faced the same issue on my replacement phone, and the display has gone black, there's nothing I can do.
Has anyone else faced this issue or is it just me, for the second time?
If anyone has faced this, do you have a workaround?
jamstar.5 said:
Hello,
I purchased an Mi A1 on 20th last month from an offline shop, and on the second day of use the display went blank (Could see lights on buttons, could use the touch, but no display), I raised a complaint and got a replacement from the store after Mi surprisingly approved it.
Now again I faced the same issue on my replacement phone, and the display has gone black, there's nothing I can do.
Has anyone else faced this issue or is it just me, for the second time?
If anyone has faced this, do you have a workaround?
Click to expand...
Click to collapse
Nope,it's works fine .show the problem to offline dealer .may be they got entire defective units or they gave you same mobile again with proper covering .
Good luck
Sometimes a simple bug can look like a major problem. It can be just the auto- brightness lowering your brightness way below visible range. Next time if it happens, try flashing a bright light to your light sensor, or try restarting your mobile (holding power button for more than 10 sec will force restart your mobile).
jamstar.5 said:
Hello,
I purchased an Mi A1 on 20th last month from an offline shop, and on the second day of use the display went blank (Could see lights on buttons, could use the touch, but no display), I raised a complaint and got a replacement from the store after Mi surprisingly approved it.
Now again I faced the same issue on my replacement phone, and the display has gone black, there's nothing I can do.
Has anyone else faced this issue or is it just me, for the second time?
If anyone has faced this, do you have a workaround?
Click to expand...
Click to collapse
Faced the same situation,I bought from big C and I faced touch issue on the same day I purchased but my replaced mobile is working fine
I faced this issue this morning, I think the ambient display was the caused of this since it is on for me, I received a notification then I'm expecting the ambient display to show but it didn't then when I try to unlocked it, the phone is black then I just restart it since I know the position of the restart in screen. I turned off the ambient display now, will update when I happen again.
Mi A1 screen blackout
For those of you suffering from screen black-out on the Mi A1 during incoming calls or messages, here's a solution to try: dial *#*#6484#*#* then select ALS/PS and recalibrate the light sensor and proximity sensor as per instructions .
Xiaomi seems to have shipped thousands of phones with incorrectly calibrated sensors for quite some time and done nothing about it - google search: call screen black site:en.miui.com
ImagineerX said:
For those of you suffering from screen black-out on the Mi A1 during incoming calls or messages, here's a solution to try: dial *#*#6484#*#* then select ALS/PS and recalibrate the light sensor and proximity sensor as per instructions .
Xiaomi seems to have shipped thousands of phones with incorrectly calibrated sensors for quite some time and done nothing about it - google search: call screen black site:en.miui.com
Click to expand...
Click to collapse
Thx bro...
I had calibrated my phone...will try and keep observe it:good:
Sent from my Mi A1 using XDA Labs
I faced the same problem twice today. I don't know what to do. If you know anything please help me out on removed
Mod edit: I suggest not posting your phone number
Same problem on my A1, I have try the calibration. Thanks for the help.
engrpingr said:
I faced this issue this morning, I think the ambient display was the caused of this since it is on for me, I received a notification then I'm expecting the ambient display to show but it didn't then when I try to unlocked it, the phone is black then I just restart it since I know the position of the restart in screen. I turned off the ambient display now, will update when I happen again.
Click to expand...
Click to collapse
Yes it's a bug with ambient display. I've even deliberately tried to trigger the bug and it's a software problem. Should be fixed in an update.
Ron1209 said:
Yes it's a bug with ambient display. I've even deliberately tried to trigger the bug and it's a software problem. Should be fixed in an update.
Click to expand...
Click to collapse
Hope they will fixed it. I did not experience it again after turning it off. Cheers!
The problem was not fixed with the calibration. I had another black screen episode right after receiving a message
Bad Display
I faced the same issue. When I tried to open my phone with fingerprint then suddenly the screen goes black and nothing was working. There was light in the navigation buttons and nothing else. I purchased it from Flipkart and they denied the replacement. I don't know what to do now.
Jaspreet11 said:
I faced the same issue. When I tried to open my phone with fingerprint then suddenly the screen goes black and nothing was working. There was light in the navigation buttons and nothing else. I purchased it from Flipkart and they denied the replacement. I don't know what to do now.
Click to expand...
Click to collapse
For now I have disabled ambient display. Try this
Happened once to me. Turning off ambient display indeed seems to work in preventing it from happening again.
jamstar.5 said:
Hello,
I purchased an Mi A1 on 20th last month from an offline shop, and on the second day of use the display went blank (Could see lights on buttons, could use the touch, but no display), I raised a complaint and got a replacement from the store after Mi surprisingly approved it.
Now again I faced the same issue on my replacement phone, and the display has gone black, there's nothing I can do.
Has anyone else faced this issue or is it just me, for the second time?
If anyone has faced this, do you have a workaround?
Click to expand...
Click to collapse
it's an ambient display bug, I deactivated this option frm setting and there is not this bug again, try this
Thanks ghpranav ,
ghpranav said:
Sometimes a simple bug can look like a major problem. It can be just the auto- brightness lowering your brightness way below visible range. Next time if it happens, try flashing a bright light to your light sensor, or try restarting your mobile (holding power button for more than 10 sec will force restart your mobile).
Click to expand...
Click to collapse
I have face same issue as per your advice "holding power button for more than 10 sec will force restart your mobile" will help me, Thanks for your suggestion
i have same bug. i'm trying to resolve deactivating ambient display.
Bug is not solved with last release sw
Can we all report this through the Xiaomi feedback app? It seems everyone I know with the Mi A1 has this bug too.