Database Users

having trouble replacing touch matrix... need help, pictures included

so my touch matrix cracked, got a replacement on ebay that looks perfect. i got it to work but everytime a do, a few days later it stops working until i fix it again. i can't seem to figure out how the flexible PCB connects to the back of the LCD module. it looks like HTC just puts a piece of tape over it.
however, i noticed when taking off the old LCD touch matrix that there was some sort of possibly conductive adhesive that made it very difficult to pull off. i got it off but one of the contacts got stuck on there and it i had to scrape it off with a scalpel.
see picture below for exact details. if anyone has any experience in doing this and getting it to work, please let me know, it's so frustrating not having touch on this phone.
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I think you might need to have that professionally repaired. I used to refurbish phones for Motorola but I've never taken anything this advanced apart before. It sounds like you shouldn't have scraped off that conductive adhesive. The digitizer you bought should have been a relatively simple installation but you should have taken your time peeling off the old cracked digitizer. That adhesive is pretty strong and thats why they use it.
You might want to look into getting your hands on some of that adhesive and just replace it all. Sometimes the oils from your skin from handling such a sensitive ribbon cable could have damaged it as well.
P.S. Unfortunately, most of the people here are software genius's, not hardware experts unfortunately.

it's not too advanced. i figure if they at least offer the part as a replacement option on ebay it can't be too hard. and in the mass view, it's only 4 contacts and relatively easy to replace if you have a minor knowledge of electronics.
i keep taping it down firmly and even putting extra tape on top so that the pressure of the case will press down on the pcb to have a firmer connection.
note: i was very careful to observe ESD precautions, so that isn't it, plus there's no semiconductors that could be damaged in the touch matrix.

dudah85 said:
it's not too advanced. i figure if they at least offer the part as a replacement option on ebay it can't be too hard. and in the mass view, it's only 4 contacts and relatively easy to replace if you have a minor knowledge of electronics.
i keep taping it down firmly and even putting extra tape on top so that the pressure of the case will press down on the pcb to have a firmer connection.
note: i was very careful to observe ESD precautions, so that isn't it, plus there's no semiconductors that could be damaged in the touch matrix.
Click to expand...
Click to collapse
Hmm... have you tried good old fashion superglue? I mean not neccesarily putting it on the end of the cable where the conductors are, but on the cable right near the conductors to keep it from moving around and then placing a few strips of tape to sandwich the cable with the housing pressing it down tight?

yes i have but i fear what happens if when pressing it down if it gets on the pads, then i'm just totally screwed. it's a tough situation, i wish there was a contact at HTC that could tell me how it's done.
i'm going to also try contacting their support/repair office and see if they can provide any insight.

dudah85 said:
yes i have but i fear what happens if when pressing it down if it gets on the pads, then i'm just totally screwed. it's a tough situation, i wish there was a contact at HTC that could tell me how it's done.
i'm going to also try contacting their support/repair office and see if they can provide any insight.
Click to expand...
Click to collapse
The superglue option is very risky but it could save your @$$ if you only put very little on the ribbon and then hold it in place untill it dries and then press down once the glue is already dry.
On another note, contacting their support office would probably be your best bet.
Everything you have done, even though not done wrong, it a far greater risk than I would have ever taken... I would have sent it in to be repaired of the digitizer had a crack in it or or the dot matrix got scratched. But thats me.
Unfortunately there aren't too many technicians here on this forum since it is almost completely firmware and not hardware here... Then again, there might be a few. Where I live it's kinda late at night so maybe they're sleeping or something. Lol.

i'm neither a hardware nor a software expertm but i may be able to help... i saw the manual somewhere... www.mdatweak.com/downloads/Wizard_Service_Manual.pdf... try that... maybe it'll help you...

How to replace HTC HD2 Touch Screen Glass ?

How to replace HTC HD2 Touch Screen Glass ?
Required easy video or photo tutorial.
Only replace HTC HD2 Touch Screen without disassembling all device camera, speaker etc.
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I want to order this part
http://cgi.ebay.com/HTC-HD2-T8585-L...m&pt=PDA_Accessories&hash=item439f5e14b9#shId
Video how i broke my HTC HD2
http://www.youtube.com/watch?v=onMWYZgHhrk
Scratch Test:
http://www.youtube.com/watch?v=SVNbe5V-1Sw
Temp. Fix , to protect fingers
http://www.youtube.com/watch?v=bOQfM8cTvgU
EDIT:
http://forum.xda-developers.com/showthread.php?t=701003

http://forum.xda-developers.com/showthread.php?t=613954
"Required easy video or photo tutorial.
Only replace HTC HD2 Touch Screen without disassembling all device camera, speaker etc."
If i remember correctly there is a photo tutorial on some blog.
no it's not easy, yes you have to disassemble your phone, no i wouldn't bother trying if i have no clue about how the whole thing is set up.
repairing charges are about 170-200€ ~250$.

I haven't done it yet myself, my screen is alsoo cracked, but it seems very tricky. However, you have to disassemble the HD2 befor you can reach the screen. Also, you have to place the LCD part in the oven for 5 to 10 minutes at 50C degrees to let the glue get loose, because the screen is glued on. And even the digitizer is glued onto the lcd. So, even if you manages just to remove the digitizer, you still have to find a way how to glue it back to each other, without making a mess.
I have already disassembled my HD2 with succes. I am going to HK anyway, so I going to buy replacement LCD + Digitizer and bring my HD2 with so I can fix it right there and check if everything works ok aigain.
If so, I xan ditch the iPhone. I hate it.

I've replaced the digitizer from my Samsung Omnia i900 and it turned out to be very easy, following the instructions I found on the internet and YouTube. I guess it's the same for the HD2.

Is the digitzer and glass surface seperable?
Because i can see what looks like a thin layer of glass from the bits of glass which has fallen off on the bottom corner where it took the hit. Or am i just looking at the edge of hte LCD screen?
And since the screen still responds as per norm.
Picture is linked below:

the best dissassembly video
here is the best video for the hd2
www dot youtube dot com/watch?v=cL-jnUKufC4&feature=related[/url]
and assembly here
www dot youtube dot com/watch?v=t8Q7mXdcJ54&NR=1[/url]
thanks mark

Couple of questions!
1972 said:
here is the best video for the hd2
www dot youtube dot com/watch?v=cL-jnUKufC4&feature=related[/url]
and assembly here
www dot youtube dot com/watch?v=t8Q7mXdcJ54&NR=1[/url]
thanks mark
Click to expand...
Click to collapse
Hi, thanks for these videos,, very detailed!
Have you got any idea about what she means by 'paste'? Is she just saying to connect A > B or is there some kind of adhesive needed? Also, have you got any links to buy some Mylar, OR do you think I could get away with reusing the ones removed?
By the way, I am going to try and replace the digitalizer in my HD2!
Thanks in advance!

There are 2 types of touch screen digitizers for HD2, you have to make sure you buy the right one. One needs to be soldered to the LCD flex, another plugs in. If you have a plug-in setup - you are in luck, if not - best to be left to professional, as it involves fine flex soldering.
Attaching the digitizer itself to the front housing is similar to that of Nexus and similar devices - 3M sticky double-sided tape is perfect, there is a 2mm one in a large flat roll sold everywhere.
Those who suggested the digitizer and LCD are fused together - wrong. Capacitive digitizers do not adhere to LCD and are attached to the housing itself with a free gap between the LCD and the digitizer.
I strongly recommend PROFESSIONAL INSTALLATION.

The best way of doing it is buying a ready assembly. Something along the lines of http://cgi.ebay.com/LCD-Screen-Touc...235?pt=LH_DefaultDomain_0&hash=item3f0b9f9463 It might be a bit more expensive than buying just a digitizer and attempting to attach it yourself, but you will save yourself a whole lot of trouble. AND it's still cheaper than $250 quoted somewhere above. Once you purchase the assembly, just familiarise yourself with HD2 disassembly/reassembly procedure and install.

Always buy a digitizer that is "OEM", even if it is used. The first digitizer I got for my HD2 with a smashed screen was shipped as 'new' from China, but when I got it, the quality was bad, because it was so cheap, and the screen would not recognize touch correctly..
Always be careful to check if there is anything caught on the middle frame when you take the motherboard out, because if you don't, you will rip something..
When I took my phone apart, I used this tape: http://cgi.ebay.com/3M-ADHESIVE-STI...652633?pt=PDA_Accessories&hash=item20baa9efd9 and it worked fine

enigma1nz said:
The best way of doing it is buying a ready assembly. Something along the lines of http://cgi.ebay.com/LCD-Screen-Touc...235?pt=LH_DefaultDomain_0&hash=item3f0b9f9463 It might be a bit more expensive than buying just a digitizer and attempting to attach it yourself, but you will save yourself a whole lot of trouble. AND it's still cheaper than $250 quoted somewhere above. Once you purchase the assembly, just familiarise yourself with HD2 disassembly/reassembly procedure and install.
Click to expand...
Click to collapse
Wish I saw this about 25 minutes ago, I've already purchased my glass for 30$ Shipped - I guess I'm in for a hell of a ride with this one.

how hard was to put a couple of magnets to the phone? get in and look at my idea...

So I was asking to myself.... how hard could have been? I also thought... is common sense the the phone needed some kind of mechanism to lock the phone when closed and opened, right?
Well, then after thinking I came to a conclusion that well we, users could get creative and do something about it, so I went into a quest looking for the smallest and thinness magnet I could find and I came across magnets that are only 1/32" thick.... now... I thought if I could find a way to cleanly attach them to the phone in places that I already have thought of ( will show tomorrow when I get to my computer ) and would be the least visible.
What do you guys think? Any ideas about attaching the magnets?

Juan I have been looking for magnets, and finding the ideal location....there was a thread a while back regarding tape on the inside between the ribbon and the "z" leg.....I like this idea, but my concern is over GPS use. I'm sure one ca calibrate the bearings, but not sure how it would affect GPS signal....
Please post pics and experiences...really interested in doing this myself, as TMO will no stand by the defective hinge...sorry "design feature"!

juanshop said:
So I was asking to myself.... how hard could have been? I also thought... is common sense the the phone needed some kind of mechanism to lock the phone when closed and opened, right?
Well, then after thinking I came to a conclusion that well we, users could get creative and do something about it, so I went into a quest looking for the smallest and thinness magnet I could find and I came across magnets that are only 1/32" thick.... now... I thought if I could find a way to cleanly attach them to the phone in places that I already have thought of ( will show tomorrow when I get to my computer ) and would be the least visible.
What do you guys think? Any ideas about attaching the magnets?
Click to expand...
Click to collapse
I posted a pretty detailed post in the accessories forum. You might want to look at the "hinge fix" thread over there.

Magnets might interfere with the compass

Look into how the magnets might effect your signal a well.
Sent from my T-Mobile G2 using Tapatalk

That's why I'm going to buy the magnets and do tests and see how much will interfere with the phone. So if anyone of you guys is interested, I will keep y'all posted.
Sent from my T-Mobile G2 using XDA App

juanshop said:
That's why I'm going to buy the magnets and do tests and see how much will interfere with the phone. So if anyone of you guys is interested, I will keep y'all posted.
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
I could swear I saw what looked like magnets on the display g2's at the tmobile stores I went to this week. They all looked like they had a small strip of magnets on each side by the hinge (on the under side of the screen and the body).
Maybe it was just a display model thing, but the phones were active demos.

this is exactly what i was thinking about doing but there seems to be to many problems with compass gps and possibly mememory loss if only there was a way to magetize the ones already in there

I personally think I see an easier way.
I'm going to try to attach a tiny piece of felt to the side of the Z hinge so it wedges a little more securely inside the recessed area on the top of the screen.
Open your keyboard, and you'll see where the hinge arms sit inside the recessed areas with small 1mm or so gaps on either side.
I think it'll work...

we need velcro
Keep us updated with your progress

I just picked up a package of (2) 5x8 inch magnetic sheets (self adhesive). The cost was under $2.
It is super thin (looking for my digital calipers, but I would guess 1/32 or thinner. Im going to give this a try and post some pics if it works well. If it works, this should be enough magnetic sheet to fix every G2 produced by HTC this year.
Well, I have found no ill effects of the magnetic material and it WORKS... I can now hold the phone upside down, sideways, backwards, etc. Of course if you shake it, it will open. But it will not open or close during natural use.
Took about 2 minutes to do, cost under $2 and I could do another 100 phones with the material I have.
Here are the pics:
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How the F do magnets work, anyway?

im worried about putting magnets near a hard drive or radio.
What about rubber bands of some sort, such that when screen is fully out they lock, but otherwise snap back?

carlsbad0331 said:
I just picked up a package of (2) 5x8 inch magnetic sheets (self adhesive). The cost was under $2.
It is super thin (looking for my digital calipers, but I would guess 1/32 or thinner. Im going to give this a try and post some pics if it works well. If it works, this should be enough magnetic sheet to fix every G2 produced by HTC this year.
Well, I have found no ill effects of the magnetic material and it WORKS... I can now hold the phone upside down, sideways, backwards, etc. Of course if you shake it, it will open. But it will not open or close during natural use.
Took about 2 minutes to do, cost under $2 and I could do another 100 phones with the material I have.
Here are the pics:
Click to expand...
Click to collapse
exellent! exellent!!!! just what i had in mind! that was exactly my plan, now, here, the same can be applied here ( i dont see on the pics but did you applied for when the phone is open or closed? or both? if is only when the phone is closed, well look at my picture, is paint quality LOL but i think it can be understood, with the magnets aldeady on the back of the screen, a couple of other magnets can be placed on the red area of the picture, thats a perfect area because there's an indentation there, and a little piece there would not affect the keyboard at all.
pd: info on where you got that material would be awesome, thanks!
pd2: i will do my own too and try different things and test the phone for at least a couple of weeks and see whats happens, also i will let you guys know the end results, i have insurance on my phone so if something happens i can get a new one on the way
pd3: i read for the phone to be affected by magnetic fields, it has to be a really powerful magnet, just look at other phones with magnets in the market... they seem perfectly fine.

I only did this for when the phone is open. Ive never had the phone open from the closed position.
I picked up the package of magnetic sheet at Target. It was in the craft section in a purple plastic envelope. It is made by Horizon Group USA and the SKU number is 765940168059.

going there right now!

Just an FYI, all 3 of my old Sidekicks had magnets so they won't interfere with cell or GPS signal. I am unsure about the compass however. I was considering a similar idea as well only with a couple tiny round silver magnets on the bottom section tops corners and screen section middle sides.

Sorry for this off topic but, why is your phone so shiny? like a polished metalic grey. Looks actually very nice. Polished? full skin?

Most likely took picture using a flash so we could see the magnets
Sent from my T-Mobile G2 using XDA App

And like always my local target doesn't have any gonna try Walmart.
Sent from my T-Mobile G2 using XDA App

HTC Wildfire Take Apart Repair Guide

Has your outer touch screen digitizer been cracked or damaged? Having problem with the inner LCD screen? This written repair guide shows how to take apart and disassemble your HTC Wildfire cell phone. We go through the steps required to quickly and safely open your phone and install a replacement glass touch screen digitizer or LCD part.
This guide will help you to install the following HTC Wildfire replacement parts:
HTC Wildfire Touch Screen Digitizer Glass Replacement
HTC Wildfire LCD Screen Replacement Display
and other HTC Wildfire Replacement Parts
Tools Required:
Safe Open Pry Tool
Small Phillips Screwdriver
Torx T5 Screwdriver
Adhesive Stips ( For Touch Screen Digitizer
HTC Wildfire Take Apart Repair Guide:
Step one is to remove the back battery cover, battery, and memory card. Once that is done remove the six (6) screws located in the back housing.
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Figure 1​
Step two; remove the antenna cover located at the bottom part of the phone.
Next step is use a safe open pry tool to pry off the back housing and then remove the housing from the phone.
Figure 2​
The back housing is now totally removed and the two (2) screws are now visible. Remove the two (2) screws at the upper left and lower right portion.
Use the safe pry tool to remove the 3 cables. Remove the motherboard by lifting up using the safe pry tool.
Remove the flex ribbon cable of the touchscreen digitizer.
Figure 3​
Warm the LCD screen to separate from the touch screen digitizer. Use heat gun or hair dryer to every corner.
You can now heat the front of the screen assembly to warm the adhesive. Use a heat gun or hair dryer on a medium setting for about 45 seconds, using quick movements around the outside edges.
Use a safe open pry tool to pry between the touch screen digitizer and front frame, carefully releasing it from the housing. Reheat if necessary.
Carefully release the touch screen flex cable from the back of the screen assembly and feed it through the housing to fully remove the digitizer.
You can now replace the touch screen digitizer or LCD.
Simply replace the damaged parts with the new ones and reverse the order to put your phone back together again.

parts repair
hey nice post, one Q though. is it possible to replace the torch? i burnt mine out long ago (ignored the discliamer on the cyanogenmod torch learnt that lesson)
cheers in advance
Heavy_metal_man

Hey, it's a real nice post.
Replacing the flashlight is possible, it's on a 1,5x0,5 cm pcb-piece, under it there's a bit adhesive, but you can easily seperate it from the mainboard, also it's plugged, not soldered. There's only one problem: to get one...

This is one part i've yet to see a replacement for. I will see if we can source one and let you know.
You could also try and find a cheap non working phone, and take the flashlight from that. That would also solve your issue.

But it is possible? Excellent been wondering that for ages. Thanks guys! Let me know if you find anything
sent from my android powered beast!

Nice guide man, I always find a video a little easier to follow when voiding warranties but the more info the better
You can find the HTC Wildfire official dis-assembly video on youtube. It's not my upload just something that I found while researching this
Thanks

Great guide!
I'll keep it in hand, just in case.
Thanks!

Thank you very much for the positive feedback. Glad to hear the videos were helpful!

Thanks nice guide, really help me
Thanks

You are very welcome! Thanks for the feedback.

will be using this guide for my loud speaker replacement as it stopped working. There is a video on youtube replacing the speaker but quality wasn't very good. So if people would like a 720p instructions, let me know here or pm. The speaker should arrive in a few days. It cost £2.60 off ebay.

very thanks

Nice guide :thumbup:

flex cable
In the original post on the figure 3, where all 3 flex cables are marked with orange circles, what is the purpose of the left flex cable?
I was replacing my lcd when I noticed that it was hanging loose. I reassembled the phone but no problems were detected.
Anyone knows what that flex cable is? Is it redundant?
edit:
found it. Its for those buttons on the screen HOME MENU... I believe it is the lighting for it.
It looks like I need to order another part :>
regards blblb

nice post :good: keep it up and thanks for sharing

moserandrea said:
nice post :good: keep it up and thanks for sharing
Click to expand...
Click to collapse
Thank you, We're glad to have helped!

trevd said:
Nice guide man, I always find a video a little easier to follow when voiding warranties but the more info the better
You can find the HTC Wildfire official dis-assembly video on youtube. It's not my upload just something that I found while researching this
Thanks
Click to expand...
Click to collapse
You can also find a repair guide video for this device on our site. A link can be found in our signature below.

Thanks for the instructions, it might be really helpful.
I've got 2 Wildfires and both... have taken a nice dive in the sea for accident. One of them has now a damaged phone speaker (the one you use when you're on a call, not the loud speaker). Is there any way to fix it?

Snakebar said:
Thanks for the instructions, it might be really helpful.
I've got 2 Wildfires and both... have taken a nice dive in the sea for accident. One of them has now a damaged phone speaker (the one you use when you're on a call, not the loud speaker). Is there any way to fix it?
Click to expand...
Click to collapse
We do carry the Wildfire Ear Speaker Replacement As for the water damage.. You should try using a q-tip and 91% alcohol to clean up all of the connections and components.

repairsuniverse said:
We do carry the Wildfire Ear Speaker Replacement As for the water damage.. You should try using a q-tip and 91% alcohol to clean up all of the connections and components.
Click to expand...
Click to collapse
Hello all, I've inherited a wildfire with a battery bug.. Battery level doesnt go above 40%(above 60% in the replacement battery) no matter how much I charge it.. I read in one of the threads that its a motherboard issue.. So my question is, can somone help me find it? I dont want to go to HTC, because their charges are just too much.. I can change the board myself(have the tools, just need the part).. Any and all help will be much appreciated..
Thank you..

Xiaomi Quality again (Front Camera)

Gross!!
I don't know what that is, but my front camera is full of things like dust. I have never seen things get in the front camera
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Here is normal rear camera photo
With front camera, it is all blurry and ****

...

I just realized it after a week or so, it was kept indoor 100%

Could be residule dust in the housing being knocked about and ending up on the cam lens from static. Sorry to see that on your week old device man

asian_xl said:
Gross!!
I don't know what that is, but my front camera is full of things like dust. I have never seen things get in the front camera.
Click to expand...
Click to collapse
If it's any consolation, my little Jiayu G4S has exactly the same problem with BOTH cameras. I've come to expect it from these relatively cheap phones. I'm also fairly good at taking my Jiayu apart now - looks like I'll be doing the same with this one too soon
Also, after just a week my back cover is very creaky indeed. I think I've taken it on and off six times to swap SIM cards etc. My Jiayu is a solid as the day I got it almost two years ago.

do you know how long from launch it normally takes for genuine battery covers to hit the market? The wife wants a pink one however I have never owned a xiaomi before so never followed their release times for accessories.

Same dust here :/

omlet said:
Same dust here :/
Click to expand...
Click to collapse
That's really frustrating

people say there are holes between the 3.5mm phone jack and the camera, that's where the dust came from.
Yes, my back cover is not tightly fit, the battery is the same. People call me insane, but I could feel the battery rocking left and right when I shake it hard.

asian_xl said:
People call me insane, but I could feel the battery rocking left and right when I shake it hard.
Click to expand...
Click to collapse
Yeah, same for me. Had not noticed it before, but that's not anything major though. I'm more concerned about the dust in camera, although I don't have this problem yet (and I hope I won't).
This made me remember a problem with LG P500 when dust would get under the digitizer.

After a week no problems (Prime 32GB)
Sent from my Redmi Note 2 using Tapatalk

Kenneth131 said:
do you know how long from launch it normally takes for genuine battery covers to hit the market? The wife wants a pink one however I have never owned a xiaomi before so never followed their release times for accessories.
Click to expand...
Click to collapse
htt p://www .aliexpress dot com/item/Xiaomi-Redmi-Note-2-battery-case-Original-High-Quality-Protective-Battery-Case-Back-Cover-For-Xiaomi/32448421724.html?spm=2114.01020208.3.71.8mhZbK&ws_ab_test=201526_5,201527_3_71_72_73_74_75,201409_1

Kenneth131 said:
do you know how long from launch it normally takes for genuine battery covers to hit the market? The wife wants a pink one however I have never owned a xiaomi before so never followed their release times for accessories.
Click to expand...
Click to collapse
There is a dealer called "Xiaomi Home" on Aliexpress who apparently offers these. Whether "Xioami Home" is an official subsidiary of Xiaomi, well, who knows. But anyway, supposedly original Xioami back cases are available at http://www.aliexpress.com/store/product/100-Original-XIAOMI-Redmi-Note-2-Case-Protective-Cover-Case-For-Redmi-Note-2-phone-case/811568_32446023315.html. Not all colors are available at this time. They also have a supposedly original Xiaomi protective flip cases listed at http://www.aliexpress.com/store/product/New-arrivel-Original-XIAOMI-Redmi-Note-2-Case-Flip-Protective-Cover-Case-For-Redmi-Note-2/811568_32446027248.html.

I noticed I have similar dust like things under front camera hole I think they were not there when I just received phone. Seems like dust came from somewhere, any ideas what we could do with this sh.t?

If it's coming through the headphone jack like some people suggested, you could try getting a can of compressed air and spraying into the head phone jack, should unseat the dust without damaging any components.

Possible fix..
My RM Note 2 had this problem too!! After 4 days! If you blow in the headphone port the ff camera steams up.. So that's definitely the problem. I fixed it quite simply.. Took the phone apart.. (easy for anyone with basic phone tools and a little experience..) Just took the shielding off, no need to remove motherboard.. Then lifted FF camera module out and used a very lint free cloth to get rid of any dust etc..
I then used a tiny tiny bit of blutac to form a gasket around the camera module, making sure that no Blutac is visible through the front of the phone.. Pressed the module in to place gently, and did the blow test to check it was successful.. And yes! 2 days later and no dust at all.. It's just a slight design oversight.. The camera housing isn't well sealed enough.
Hope this might be helpful to some.. It's probably not very well explained.. Sorry. Annoying to have to do this on a brand new device.. But my HTC one M8 had a similar problem.. Can't be fixed.. And it cost £550.. So an easy fix on an otherwise flawless and awesome £100 device is very forgivable.
This probably ends your warranty and could well break something especially if you don't really know what you're doing. I'm not responsible for thermonuclear war or anything do with your phone. Proceed with caution at your own risk.
Regards, happy Chinese bargain buying!
Josh

Joshtp said:
My RM Note 2 had this problem too!! After 4 days! If you blow in the headphone port the ff camera steams up.. So that's definitely the problem. I fixed it quite simply.. Took the phone apart.. (easy for anyone with basic phone tools and a little experience..) Just took the shielding off, no need to remove motherboard.. Then lifted FF camera module out and used a very lint free cloth to get rid of any dust etc..
...
Josh
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I think if you took some pic when taking the phone apart would be great. I want to do this , too. But I have only replace the touchpanel before. and I don't know where to pry...

Still no problems.
Sent from my Redmi Note 2 using Tapatalk

i hope that xiaomi will fix this problem in a future release...who knows..

If you see dust on the front camera, try put your mouth over the 3.5 jack and start to aspire with force. The dust will magically disappear
However dust doesn't affect photo quality