Xperia Mini Pro Sk17i ambiance light sensor disable/broken? - Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A

Hi out of the blue my Xperia Mini Pro Sk17i ambiance light sensor is either disable or broken ,
when i open service menu by dialing *#*#7378423#*#* , ambiance light sensor just show value = 0, i shine lights over also won't change....
is it possible its disable or broken? please help, my phone is out of warranty, i was hoping for a DIY repairs on it, any guide or tips on which part should i replace,?
thanks in advance

Hey there. I'll just assume you're using a stock rom, and I'll asume it (your light sensor) is actually broken.
"Repairing" it wont be cheap, because it's part of the flex ribbon/cable assembly, which also holds the front camera, notification LED, proximity sensor, home button, display/touchscreen assembly connector and speaker pins. Pretty much everything is soldered to this component.
There *could* be a problem with your flex ribbon. Perhams some of its wires are starting to break? I know this can lead to all sorts of issues, because it started messing with my LED some months ago. But, on the other hand, it might just be a faulty sensor.
Whatever it might be, I say you leave it as it is. Replacing the flex is no joke on the XMP.

hwoarang5 said:
Hi out of the blue my Xperia Mini Pro Sk17i ambiance light sensor is either disable or broken ,
when i open service menu by dialing *#*#7378423#*#* , ambiance light sensor just show value = 0, i shine lights over also won't change....
is it possible its disable or broken? please help, my phone is out of warranty, i was hoping for a DIY repairs on it, any guide or tips on which part should i replace,?
thanks in advance
Click to expand...
Click to collapse
thanks for the reply.... im not on stock rom , its 4.04 zelly cream 6.0 AWESOME ROM!!! love it... but before i flash this, i already have issue with the sensor ...
hmm i saw a video on replacing the lcd screen, seems not that hard, just lots of steps... but problem is im not sure where to find the replacement part for the board as u mention, the lcd is common in ebay, etc...
thanks for the reply by the way. i willing to fix it myself as i love this phone alot!! i use it for work,papago gps map, calls, fb ,messaging thats all.. the keyboard and its compact body is my fav combination...

Ebay
Search on ebay for "flex cable sk17i".
Before disassembly please make sure that the cable you will receive has all the sensors and the camera. The first time I purchased such a cable, it came without proximity sensor... Unfortunately I cannot upload pictures or links, but google is your friend, right?

If I were you, I'd look for a flex ribbon with the "1241-7544" part number between the big gray square and the display port/slot. Genuine parts WILL have this number, cheap knock-offs don't (at least most of the time).

Related

[Q] Proximity sensor problem !

Hello to all...again !!
Recently, i broke the digitizer flex cable and the antenna cable connector so i had to
replace both of them. I did. Antenna works great, digitizer works great..the only problem
is the proximity sensor.
I have disassembled the device several times and if i'm not mistaken the proximity sensor
is on the digitizer's ribbon cable. Is that correct?
Anyway, everytime i make a call, the screen goes black and can't turn it on. No way to NORMALLY turn it on.
the only way i've found that turns on the screen, is if i put the sensor in front of a light i.e a lamp.
Furthermore, when i go in the service menu ( *#*#7378423#*#* ) and do the proximity switch test it defaults to on
when i think it should default to off (because at the time i'm starting the test, there's no obstacle in front of the proximity sensor).
when i move the sensor in front of a light, the test gives me a sound and the value changes from on to off.
So i'm thinking that there is nothing wrong with the hardware. They didn't send me a flawed digitizer, did they ?
Plus, is there any config file or driver responsible for that sensor ?
Also, i searched xda and found this http://www.youtube.com/watch?v=uMk1S90MjbY for motorola defy. Is there
any workaround like this for the neo v?
Thank you very much for your time and assistance.
bump?
The proximity sensor is on the right corner, between front camera and the right corner.
Check again the position of the sensors beneath those two black piece of plastic.
The items are, from the left to right:
- speaker;
- light sensor;
- front camera;
- two viewer for the proximity sensor.
@ciubexx
thank you for your answer.
I checked the sensors and are correctly positioned but the problem persists.
Again, if i put the device under light the sensor seems to work.
Also, i've downloaded "proximity sensor finder" from google play and it seems like
the sensor is constantly covered. I did the test without the front housing and the same
happened again.
Also, i have a problem with the earphone. When the front housing is attached the volume is
very low but when removed, the volume is normal again. What could that be?
Thanks again.
edit: everything solved. disabled the sensor and removed earphone's cover from front housing.
arisremounia said:
@ciubexx
thank you for your answer.
I checked the sensors and are correctly positioned but the problem persists.
Again, if i put the device under light the sensor seems to work.
Also, i've downloaded "proximity sensor finder" from google play and it seems like
the sensor is constantly covered. I did the test without the front housing and the same
happened again.
Also, i have a problem with the earphone. When the front housing is attached the volume is
very low but when removed, the volume is normal again. What could that be?
Thanks again.
edit: everything solved. disabled the sensor and removed earphone's cover from front housing.
Click to expand...
Click to collapse
How did you disable proximity sensor?
Sent from my PMP5670C_DUO using XDA Free mobile app

[Q] SE sk17i proximity sensor always on

Hi,
Recently I have replaced my Xperia mini pro's ribbon... May be you all know that this ribbon contains proximity sensor, front camera etc.
After the replacement when I'm making a call screen went black and it dosent turn on when phone is away from the ear.. I have checked on service test menu and proximity sensor is always read as "On"
Does anyone know what should I do???
ashintha said:
Hi,
Recently I have replaced my Xperia mini pro's ribbon... May be you all know that this ribbon contains proximity sensor, front camera etc.
After the replacement when I'm making a call screen went black and it dosent turn on when phone is away from the ear.. I have checked on service test menu and proximity sensor is always read as "On"
Does anyone know what should I do???
Click to expand...
Click to collapse
Bringing this thead up again because I am having the same issue, Proximity sensor set to near all the time... could it be badly placed? I was ever so careful to get it millimetrically perfect..
something must be causing the sensor to read an input all the time. Ever considered there could be some dust below the glass? Try and see what happens when you take the screen assembly away from the sensor. Another cause would be a deffective part (bad ribbon/flex components).
Thank good lord I managed to buy a genuine Sony flex ribbon

Urgent Help required. Please solve my problem

i have Xperia mini (st15i) cell phone. there was a lot of dust inside it and over its LCD screen so i opened the screws of this and cleaned the dust from inside and from the screen also. but when i assembled the phone again and turned the phone ON there is no display. only the light on the top of the phone is turning ON and there is no other light on the phone or screen is turning ON. phone also vibrates when i turn it on as usual only display is not coming.
I have replaced the LCD screen with new one but problem is same. i dont know what to do know please help me to solve this problem. i will be very thankful to you..
Aashirg said:
i have Xperia mini (st15i) cell phone. there was a lot of dust inside it and over its LCD screen so i opened the screws of this and cleaned the dust from inside and from the screen also. but when i assembled the phone again and turned the phone ON there is no display. only the light on the top of the phone is turning ON and there is no other light on the phone or screen is turning ON. phone also vibrates when i turn it on as usual only display is not coming.
I have replaced the LCD screen with new one but problem is same. i dont know what to do know please help me to solve this problem. i will be very thankful to you..
Click to expand...
Click to collapse
probably u damaged yr board or the connection cable. thats why u never should do sth if u not know what u are EXACTLY doing.
we cant really help here, bcuz to do this we would dissassemble the device & take a look. bring it to a tech shop, bcuz like said sth with the HW is surely damaged. sry
today i was checking the phone LCD today and during checking phone display appeared for few moment and than disappeared again.
bejunk said:
probably u damaged yr board or the connection cable. thats why u never should do sth if u not know what u are EXACTLY doing.
we cant really help here, bcuz to do this we would dissassemble the device & take a look. bring it to a tech shop, bcuz like said sth with the HW is surely damaged. sry
Click to expand...
Click to collapse

[Q] [HELP] Xperia Mini Pro Broken Screen

Hello! So my Xperia Mini pro has been broken, it doesn't show any image anymore, I think there is a problem with the screen but I want a confirmation or recommendation to find out what the problem is.
First the screen "touch" capability stopped working, and then two weeks after that, the back and option buttons stopped working too. And a week after that ,there was like a screen "flickering" (I tried to recreate the problem in the attached image) when I tried to either open or close the slider.
Finally the screen stopped working anymore. I tried to connect the phone to the PC but says that windows cannot recognize the hardware. And there's one more thing: I can turn on the phone, it vibrates, but the keyboard lights seems that are not working, they are permanently off.. and when I try to Increase the volume it doesn't sound either... There is only the black screen and a backlight.
Please Help me to find out what is the problem, I'm thinking to buy a screen replacement on eBay, but some people told me that is the "flex" cable. I'm not sure if there is a fix for my phone's problem.
Thanks!
Hey there.
Based on my experience, yes, your problem is most likey a flex ribbon issue. Your flex has been ripping apart lately, causing many of its wires to break. This can cause a lot of unpredictable problems, such as a misbeheaving notification LED, inactive ambient light sensor, or "dead" display/touch digitizer. Your problems have gotten worse over time, which is clearly a symptom of a broken flex.
You phone is no longer booting up to android because the kernel no longer detects a proper "response" from the display driver and halts the bootup. This is why you can feel the phone vibrating when pressing the power button, but nothing else happens. Your screen assembly is fine, I can assure you that, unless your glass is broken, of course.
Here's one hell of a good teardown guide: http://www.ifixit.com/Teardown/Sony+Ericsson+Xperia+Mini+Pro+SK17i+Teardown/7275
I used that very same guide when I repaired my own xmp. I regret messing with my screen assembly because I destroyed it and had to buy a new one, which is costly
Thank You so much for the advice ! Now I'll try to repair it, It doesn't seem too difficult. Thank You Again!!!

Honor 10 lite sensors not working after screen replacement

Hi all,
First post here! So I replaced the screen on my honor 10 lite the other day, as well as the charging/headphone jack pcb and battery - all working fine aside from now none of the sensors work. So accelerometer, gyro, screen brightness (auto option no longer there in phone brightness settings) and proximity are not working. I know underneath the main motherboard there's a 'sensor board' small pcb - does this handle the function of all the sensors? A new board looks inexpensive enough - i don't see how I could have possibly damaged the board but if replacing it will fix it that would be easy, just don't want to spend more money on repairing this phone if I don't need to.
Appreciate if anyone with any insight could help! Thanks!

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