Oooops. What did I break? - Xiaomi Mi MIX Questions & Answers

This morning, still groggy, I went to put my SIM card in this phone and out of habit from using my S7 I stuck the SIM tool into the hole on top of the phone (left side). What the hell did I potentially damage by doing this? I noticed some black sticky residue in the sim removal tool. I'm such a F'n moron...I'm really pissed

Is you phone still working ok though or it has no signal?, it could be part of the adhesive too? As long as it's working ok just treat it carefully.

SantinoInc said:
This morning, still groggy, I went to put my SIM card in this phone and out of habit from using my S7 I stuck the SIM tool into the hole on top of the phone (left side). What the hell did I potentially damage by doing this? I noticed some black sticky residue in the sim removal tool. I'm such a F'n moron...I'm really pissed
Click to expand...
Click to collapse
Those are the noise-cancelling microphones on top. I doubt it is damaged unless you applied a lot of force. The residue is most likely adhesive.
You can test whether the microphones are working by using the CIT Interface.
For this, you need to go to Settings>About>Kernel Version (Tap on Kernel version a few times until the diagnostics menu opens up)
Here, you will find options to test all the microphones. Once again, I don't really think it is broken.

satishp said:
Those are the noise-cancelling microphones on top. I doubt it is damaged unless you applied a lot of force. The residue is most likely adhesive.
You can test whether the microphones are working by using the CIT Interface.
For this, you need to go to Settings>About>Kernel Version (Tap on Kernel version a few times until the diagnostics menu opens up)
Here, you will find options to test all the microphones. Once again, I don't really think it is broken.
Click to expand...
Click to collapse
First thing In doing when I get home from work! Thanks again, you're the best!

Related

Screen Problems - Possible ribbon cable loose?

Ok guys, need some help here....
Got a HTC TyTN II.... Worked great for like 8-10 months, then started having issues with the screen.
Sometimes when brining it out of sleep, the colors are all jagged, and the screen is out of sync and staticky (kind of when you have a VGA monitor and you half pull the cable out of the connector)...
So I'm assuming its a problem with the ribbon cable coming loose (if thats how its connected).
Another thing too, the memory card slot doesn't work anymore. This just re-inserts the fact the ribbon cable or whatever for the front of the device is loose.
Does ANYONE know how to fix this? Unfortunately I tried to rip the phone appart myself and voided the warranty...
Anyone else have these problems?
Sometimes the screen works, sometimes I have to put it back to sleep, wait 5 minutes, and wiggle the front. hit the power button and it works. This has happened across 3 firmware updates so it's hardware for sure....
It does sound like a piece of hardware is loose. The fact that your mem card is not working further suggests this. I took apart my Tilt yesterday to replace the screen which no longer responded to touch, although it still worked with hardkeys. As part of the process I noticed the mem card slot was integral to the screen components. In other words, the screen and attached component, including the mem card slot is loose. For video as to how to pull apart your phone, go here. I have never done this before and this video worked beautifully. Also, search the forums for the HTC Service Manual and go through this page by page, step by step matching it against this video (if yo have dual screens even better) and you will come out fine. I did!
http://www.fonlogix.us/Video-Instructions_ep_34.html
You can buy replacement screens and the tools from the same website. Otherwise try eBay, which is what I did. Definitely get yourself a strong pry tool. The one I bought from eBay disintegrated in the first couple of minutes. Luckily there was just enough of tip of the pry tool for me to use brute force to pry open the case without damaging the phone.
thnx bud, ill be posting my results.

Got a busted digitizer but no spare phone? Here's a solution

My milestone has led a pampered and then rough life of music gigs and festivals back and forth and decided to give up it's ghost (or give me ghost-touches if you will) due to a failing digitizer after a Dillinger Escape Plan gig (http://www.youtube.com/watch?v=AyzQgysUOdU I'm right in the center of the mosh pit hehe).
I've since decided that I'd save a little more money and get a Galaxy Nexus, even if I'd very much prefer a Droid4 if only to have a proper QWERTY slider phone. They don't sell them here .
Anyway, being that I've had to continue using my POS (can you tell I'm pissed) phone, I decided to look for a way to disable the touch screen and see how feasible it is to control with only the keypad and a few touches.
Which led me to these 2 apps
https://play.google.com/store/apps/details?id=com.argotronic.touchblocker
Screen Lock / disable touch Argotronic
I've had it set up so that I can "lock" the touchscreen via shaking the device, and unlocking the screen in the same way. Despite disabling the touchscreen, the notification pulldown still remains active, so you can still pull it down and quickly tap yourself to whatever via the Dpad if necessary.
Now, of course, what use is all this if you can't swipe to unlock your ****?
https://play.google.com/store/apps/details?id=com.jiubang.goscreenlock
Go Locker
This, apart from still bringing up the stock lockscreen whenever you restart your phone (this goes away after 1-2 unlocks), solves that problem by allowing you to unlock your phone via long pressing the volume rocker.
I've found that it is entirely feasible to run the phone this way.
Apart from that, I bid this community a farewell as what little regular posting I used to do has already dropped tremendously the last few weeks, and much thanks to everyone who has helped me and the developers. <3 Kabaldan, get a galaxy nexus please! though I'd suppose your talents would be better suited to another poor locked up phone.
This community helped me get quickly familiar with Android, and in particular with a "difficult" phone, and I will never forget this. I'll probably get a new digitizer + keyboard and just put it on my desk as a... completely over powered clock. or something. Hey, when was the last time you said overpowered when talking about the Milestone?
Oh, and to solve the gig/festival problem so my Gnex doesn't meet a similar fate I'll be getting an Xperia Active as a secondary phone since that **** is hard as nails, waterproof, small (3") and reasonably priced.
EDIT: Reason I'm not just fixing up my Milestone to continue to use it is because I've always suspected that my mobile radio is a little faulty as I've always had trouble maintaining 3G+ connectivity/sync, I figure it'll just crap itself out eventually. It's also, and I'm sure most will agree, starting to become painfully slow hahah.
If you are willing to take a little risk, after taking out battery, SIM card and microSD card, worm up your phone by putting it in the oven over a towel or on a blow heater (yeah, for real) for a few minutes. Then, you will need to put it in a dry place (like drawer or something) during the night. Turn it up in the morning and it shall work.. it worked for me anyway, I was sure my phone was dead and the digitizer was damn busted.. it must have been moist from the inside, so I used to have very annoying ghost screen..
good luck mate..
oshosh said:
If you are willing to take a little risk, after taking out battery, SIM card and microSD card, worm up your phone by putting it in the oven over a towel or on a blow heater (yeah, for real) for a few minutes. Then, you will need to put it in a dry place (like drawer or something) during the night. Turn it up in the morning and it shall work.. it worked for me anyway, I was sure my phone was dead and the digitizer was damn busted.. it must have been moist from the inside, so I used to have very annoying ghost screen..
good luck mate..
Click to expand...
Click to collapse
Hmm, I completely forgot about this!
I had done some drying with a hairdryer, I had originally noticed that the ghost-touches would get more severe if it spent an hour or two in my pocket, but completely forgot about trying it to dry it a different way. I'll put in a bag of rice tonight!
Thanks
Putting your device in the oven could really fix your problem. I've heard of this before in a different context (fixing gaming consoles..). What it does is fixing soldering points by melting them. Connections between cables and the board are then (hopefully) fixed again.
There are several methods including the oven, microwave, hairdryer and so on..
moe6 thank you for you post
will try the screen lock app
i have no need for the go locker, with cm7 you can unlock the phone by sliding the keyboard.
i have two questions
how can i answer/end a call easily without the screen?
is there any way to have a back button routed to the key board?
i use "search+z" to start(swich) back to my launcher
i guess i will try the oven trick but i really concerned if i will break the milestone completely. should survive a few week.
that poor old thing
UnitedOceanic said:
moe6 thank you for you post
will try the screen lock app
i have no need for the go locker, with cm7 you can unlock the phone by sliding the keyboard.
i have two questions
how can i answer/end a call easily without the screen?
is there any way to have a back button routed to the key board?
i use "search+z" to start(swich) back to my launcher
i guess i will try the oven trick but i really concerned if i will break the milestone completely. should survive a few week.
that poor old thing
Click to expand...
Click to collapse
Good thing you thanked the top post, I would've missed your post otherwise .
Yeah I know you can unlock via keyboard slide but I have my phone caseless and its always in my pocket and it tends to slide open just enough to unlock it occasionally .
I answered calls by using the d-pad on the keyboard. Just tap it once and it should begin highlighting buttons on the screen, press d-pad center button to select. Unfortunately for you, my back button did still work as the "dead" part of my digitizer was on the right side of the phone where Home and Search is.
I think the drying tricks help mostly with ghost touches since I'd assume that the ghost touches are from small amounts of water/sweat/liquid. After drying it with a hairdryer, short bit in the oven and then stuck in a bag of rice, my ghost touches stopped 80% from what they were before. The digitizer is still dead on one side though.
Now all I need is a Droid/Milestone dock and a new digitizer so my old Milestone can live its life out as a very complicated desk clock
You can actually make it work real good without much issue. You'll need a CM ROM so you can enable the Menu to unlock option and then use v6 Supercharger Bulletproof Apps to lock the screen disabling software into memory so it doesn't crash and it doesn't run bad at all. Also, there is a really good app to remote control your phone from your computer so if you have adb and a data cable, you can get it working good.
Do you know what that app is called?
Sent from my Galaxy Nexus using Tapatalk
Chris.fowler said:
Do you know what that app is called?
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I personally use AirDroid, it's amazing.

[Repair Guide][New Method] How to replace dying sim/microsd/volume/power buttons

Hello, Today I will show you how to replace a problematic sim/microsd/volume/power. The reason why they can be fixed together is because they are all on the same PCB that we will be replacing.
I made this guide because I went snowboarding and I dropped my phone in the snow. I tried the rice trick but after that my power button was still dying. I looked up prices for getting a professional to replace it and it was around $60 for a part that costs $10 MAX. So i just bought the part off of ebay and documented my process
EDIT: if the pictures don't show up, just right click and open in new tab for now
EDIT: There is now no need to remove the motherboard to solve this issue
Credits:
http://www.youtube.com/user/RepairsUniverse
and
http://www.youtube.com/user/RuedasLocas
DISCLAIMER: I DO NOT TAKE ANY RESPONSIBILITY IF YOU MANAGE TO MESS UP YOUR DEVICE. TRY AT YOUR OWN RISK.
Prerequisite:
-A brain​-Spare Sim Card Reader Tray Holder
http://www.ebay.com/itm/New-Hot-Sim...x-Cable-Replacement-for-LG-P880-/301129602162
-Read/Watch all the links below
http://androidforums.com/lg-optimus...us-4x-hd-screen-replacement-repair-guide.html
http://www.youtube.com/watch?v=WFmHFNKY8og
http://www.youtube.com/watch?v=kGD64_g-ssE
After you are done, do it again to make sure you understand it
You can download these pictures from here
https://www.dropbox.com/sh/8kdrxz28aku1x9x/tMsO_WAAuV
Tools I Used:
Small flathead
Small Philipshead
Thin pointy object
Scissors
https://www.dropbox.com/s/p9es5uyfej3jymz/1.jpg
https://www.dropbox.com/s/1evpx5782ei5nen/2.jpg
1) Remove these Screws only because the others are not required
https://www.dropbox.com/s/lub8senef5uhsqa/IMG_20140414_151433.jpg
https://www.dropbox.com/s/3dw6lf5rtqsslut/IMG_20140414_153856.jpg
2) Use the flathead to pry off the cover from the frame
https://www.dropbox.com/s/1nqhr45zzoa4ssf/IMG_20140414_151527.jpg
https://www.dropbox.com/s/a0ladgpn954fpkr/IMG_20140414_151534.jpg
3) Use the flathead to pry off the cover from the frame
https://www.dropbox.com/s/1nqhr45zzoa4ssf/IMG_20140414_151527.jpg
https://www.dropbox.com/s/a0ladgpn954fpkr/IMG_20140414_151534.jpg
4) This is what it should look like
https://www.dropbox.com/s/fzb7wh8jnn4ljwq/IMG_20140414_151604.jpg
https://www.dropbox.com/s/rcbyzvql8uy6p20/IMG_20140414_151627.jpg
5) Remove the silver screw with the philips head and put it in a safe place
https://www.dropbox.com/s/0u1yl88w08y5011/IMG_20140414_151702.jpg
New "easy" method
6) You DO NOT need to remove all the connectors, only the ones in red
https://www.dropbox.com/s/5cgxcq2ocm7fkwi/IMG_20140414_151844 - Copy.jpg
Take note that the electronic above the sim card slot just needs to be peeled off gently, It is NOT a connector but it does rest on top of the PCB.
Also, you'll need to pry off the vibration motor (the circle to the right of the Sim card slot) as it is glued in
7) This is what the PCB looks like when separated from the motherboard
Note: your motherboard will still be in your phone, i just wanted to shop you what both parts look like
https://www.dropbox.com/s/6ysyid9eu2v5jjw/IMG_20140414_152536.jpg
8) Get out your new PCB
https://www.dropbox.com/s/6130c74hcx...414_152619.jpg
If The PCB you ordered did not come with the shielding then follow these steps
Note: Your motherboard should still be in your phone
8.a) Remove the shielding from the back of the original PCB, be careful of the glue to not damage any components
https://www.dropbox.com/s/nfpuwzf3om1ib3s/IMG_20140414_152657.jpg
https://www.dropbox.com/s/73sbx0k32f4x5x4/IMG_20140414_152731.jpg
8.b) Now, put the shielding back onto the motherboard, it should fit into place nicely
https://www.dropbox.com/s/li966nnqujajgog/IMG_20140414_153037.jpg
8.c) Take out your new PCB and connect the connector to the motherboard before, placing it on the shielding
https://www.dropbox.com/s/mn97igyuir7o9q6/IMG_20140414_153154.jpg
Make sure everything is secure
8.d) Take out your new PCB and connect the connector to the motherboard before, placing it on the shielding
https://www.dropbox.com/s/mn97igyuir7o9q6/IMG_20140414_153154.jpg
Make sure everything is secure
Old Method by removing mother board
Procedure:
Follow the steps from the guide here up to Figure 3.4
8.a) After removing the motherboard, remove the following connector
https://www.dropbox.com/s/bsgwmyf6t1djpdb/IMG_20140414_152518.jpg
8.b) Now just pry off the PCB from the motherboard, be weary of the adhesive
https://www.dropbox.com/s/6ysyid9eu2v5jjw/IMG_20140414_152536.jpg
8.c) Get out your new PCB
https://www.dropbox.com/s/6130c74hcxd413x/IMG_20140414_152619.jpg
8.d) Remove the shielding from the back of the original PCB, be careful of the glue to not damage any components
https://www.dropbox.com/s/nfpuwzf3om1ib3s/IMG_20140414_152657.jpg
https://www.dropbox.com/s/73sbx0k32f4x5x4/IMG_20140414_152731.jpg
8.e) Now, put the shielding back onto the motherboard, it should fit into place nicely
https://www.dropbox.com/s/li966nnqujajgog/IMG_20140414_153037.jpg
8.f) Take out your new PCB and connect the connector to the motherboard before, placing it on the shielding
https://www.dropbox.com/s/mn97igyuir7o9q6/IMG_20140414_153154.jpg
Make sure everything is secure
8.g) Slide the motherboard back into place inside the frame
(Make sure not to damage any connectors by safely getting them out of the way BEFORE putting in your motherboard)
https://www.dropbox.com/s/ojvh1vftm6s3qza/IMG_20140414_153415.jpg
https://www.dropbox.com/s/f3k5f1c7qelaq74/IMG_20140414_153420.jpg
9) Reconnect all of the connectors you previously disconnected EXCEPT the volume and power
https://www.dropbox.com/s/v0oyeoaswkd0gb9/IMG_20140414_153602.jpg
10) Now carefully slide in the power and volume buttons into their correct spots
(I used the flathead the push the rockers out of the way to slide in the buttons)
https://www.dropbox.com/s/l94dfverf2ziwl7/IMG_20140414_153832.jpg
Now test the feel of the buttons before putting the Screw back in. (You should hear the tactile feedback)
11) Screw in the screw you removed to get the motherboard out
https://www.dropbox.com/s/3dw6lf5rtqsslut/IMG_20140414_153856.jpg
12) Put the cover back on (do NOT put the screws back in yet) and see if the all the sides close properly
https://www.dropbox.com/s/e4sc0thp8ioi1dn/IMG_20140414_153954.jpg
https://www.dropbox.com/s/wyob0xuxaqkp8ve/IMG_20140414_154002.jpg
https://www.dropbox.com/s/7x46humbisb5lm7/IMG_20140414_154010.jpg
13) Well crap, i have a bump
https://www.dropbox.com/s/3h6mejmug79o8ar/IMG_20140414_154015.jpg
https://www.dropbox.com/s/69w769ubiz03fpk/IMG_20140414_154131.jpg
Time to backtrack and see what is not seated properly
14) After all that is done and is properly fitted, Put in your sim car, micro sd, and battery
(Do NOT put in the screws yet)
https://www.dropbox.com/s/it26v6h7763flzs/IMG_20140414_154143.jpg
15) Now power on and see if it works
https://www.dropbox.com/s/fumzxsuewnqqgn4/IMG_20140414_154158.jpg
(Mine did, I was so happy I could cry!)
16) After it power on, test all your buttons
17)Test Cases:
Press power button once to see if the screen turns off
Press the power button to see if the Screen wakes up
Press the volume up to see if the volume increases
Press the volume down to see if the volume decreases
Check your sim connectivity, should have bars
Check your micro sd card by going to Setting>Storage>SD Card
Check your cameras
check your sound
If something does not work, backtrack and check all of your connections.
If your power or volume buttons don't work, check the PCB connection. If it still doesn't work, you might have received a defective PCB like I did (My volume buttons didn't work). Contact your seller and ask for a replacement for your defective item (I got mine for free and now everything works).
18) If everything works, NOW screw in your remaining screws and close her up and enjoy your day!
You can download these pictures from here
https://www.dropbox.com/sh/8kdrxz28aku1x9x/tMsO_WAAuV
Don't forget to hit thanks!
vibration motor?
hi i have been following your instructions and everything has been going very smoothly. however, i cant figure out how you take out the vibration motor from the old pcb and put it into the new one. do you simply yank it out? i dont want to break anything, thanks!
bobbidik said:
hi i have been following your instructions and everything has been going very smoothly. however, i cant figure out how you take out the vibration motor from the old pcb and put it into the new one. do you simply yank it out? i dont want to break anything, thanks!
Click to expand...
Click to collapse
No do not yank it, the wires are sensitive, I used a soldering iron and heated the contacts up enough to the point where the wires were able to be pulled out. Then I soldered it to my new one. (Remember which wire goes to which contact)
don't forget to hit thanks!
abhi08638 said:
No do not yank it, the wires are sensitive, I used a soldering iron and heated the contacts up enough to the point where the wires were able to be pulled out. Then I soldered it to my new one. (Remember which wire goes to which contact)
don't forget to hit thanks!
Click to expand...
Click to collapse
aww i dont know how to solder nor do i have a soldering kit. oh well, i guess i can live without the vibrate function. thanks anyways!
bobbidik said:
aww i dont know how to solder nor do i have a soldering kit. oh well, i guess i can live without the vibrate function. thanks anyways!
Click to expand...
Click to collapse
Its honestly really easy and a good skill to learn, but there are PCBs with the motor already attached on eBay if you ever need it.
don't forget to hit thanks!
Awesome walkthrough.
I might use it one of these days as my power button is pretty much gone.
Thank you. I'm having weird SIM card reading issues. Flash the same ROM twice, and once it will detect the SIM, the other time it won't.
sketchman16 said:
Thank you. I'm having weird SIM card reading issues. Flash the same ROM twice, and once it will detect the SIM, the other time it won't.
Click to expand...
Click to collapse
That doesn't mean anything is broken.
Try flashing a stock ROM and if it works then your sim tray is still working
sent from my amazingly awesome OnePlus One
Don't forget to hit thanks!
So if I flash SlimKat 8.9 which I know the SIM card would read on before, and now it doesn't that doesn't mean it's a hardware thing?
Also, no custom ROM will now read the SIM. I've tried probably 5 since it started not reading. I'll try the stock ROM before I tear into it, I guess, but it seemed logical to me. IDK.
Radio is extremely crappy on this device. Custom roms don't implement all stock radio features so there can be (even randomly) broken things.
Hmm. Well, I tried to go back to stock. It just won't. Even got to a point where the LG update tool would flash in and out of being connected to the phone, and it would never settle on one or the other, so it can't do anything. Flash tool also reports no connection to the phone no matter what I do. I'm just about sick of this thing.
sketchman16 said:
Hmm. Well, I tried to go back to stock. It just won't. Even got to a point where the LG update tool would flash in and out of being connected to the phone, and it would never settle on one or the other, so it can't do anything. Flash tool also reports no connection to the phone no matter what I do. I'm just about sick of this thing.
Click to expand...
Click to collapse
If your recovery is still available, then just flash one of the stock 4.1.2 ROMs from the android development section
sent from my amazingly awesome OnePlus One
Don't forget to hit thanks!
I don't suppose....
sketchman16 said:
Thank you. I'm having weird SIM card reading issues. Flash the same ROM twice, and once it will detect the SIM, the other time it won't.
Click to expand...
Click to collapse
Probably a silly question but have you tried a different SIM card in the reader to see if it could be the SIM card itself that is a problem?
---------- Post added at 07:35 PM ---------- Previous post was at 07:27 PM ----------
abhi08638 said:
Its honestly really easy and a good skill to learn, but there are PCBs with the motor already attached on eBay if you ever need it.
don't forget to hit thanks!
Click to expand...
Click to collapse
I agree that soldering is indeed a useful skill but I am not sure that a relatively expensive (and I am sure in everyone's eyes, precious) phone is the best place to start practicing; heat damage from a soldering iron can do irreversible damage to sensitive components as well as the copper tracks on the PCB.
Also, I may be a good idea to edit the guide a little to mention the possibility of needing to desolder/solder if the appropriate parts require it?
Yes, tried multiple SIM cards. None work on a custom ROM now. My first flash with SlimKat 8.9, was golden in every way but the camera. Then nothing but trouble with everything else. Even the "stable" CM 10 wasn't stable for me. I just managed to get a pure LG 20d ROM installed, and everything works fine. Battery life is even great. I started flashing custom ROMs to get a better device, but now with a rooted, Xposed, and stable stock ROM, I kind of wonder if it's worth bothering. It would be nice to have KK, but I don't really miss it TBH. I still have root, I still have "most" of what I liked about KK, and there are no more bugs.
Same with my original Nexus 7. Both had been flashed to KK of one sort or another (MANY times before I gave up), and both developed issues from it no matter how I did it. Went back to stock JB on both devices, and everything is fine.
If I flash any more custom ROMs I'm def going to keep a solid JB backup ready to get a stable device back if need be, and so far need be indeed.
Hello,
My LG Phone on KK stopped reading my SIMs a month or so back. I tried different SIMS, but still wont work. I flashed KK again and then later Lollipop AOSP, but still wont work. I thought maybe the SIM Reader was faulty, so ordered a new one. But even after changing, same problem. Don't know what the issue is. Can anyone suggest any further solutions / ideas ? Thanks.
....... duplicate message removed.....
abhi08638 said:
Hello, Today I will show you how to replace a problematic sim/microsd/volume/power. The reason why they can be fixed together is because they are all on the same PCB that we will be replacing.
.....
Click to expand...
Click to collapse
If I want to repair only power only button that has became defective and doesn't respond well I have to do all these steps?? OMG
Is this the right component to purchase to fix power switch? (see attachment)

Proximity Sensor issue after screen change

So after 1 month I cracked the screen on the G4.
I replaced the screen which was super easy luckily. Now having an issue with the screen re-locking when in low light. Also double tap to wake doesn't work however, double tap to sleep works.
Also, when you hit dial on a call or answer a call the screen automatically goes black and you cannot wake until someone hangs up.
Ive searched and seen the issue some people have tried apps to fix this but ive tried everything without success. What gives? When running a phone sensor app, the proximity always reads "Near."
Any Ideas???!!!
gs00000 said:
So after 1 month I cracked the screen on the G4.
I replaced the screen which was super easy luckily. Now having an issue with the screen re-locking when in low light. Also double tap to wake doesn't work however, double tap to sleep works.
Also, when you hit dial on a call or answer a call the screen automatically goes black and you cannot wake until someone hangs up.
Ive searched and seen the issue some people have tried apps to fix this but ive tried everything without success. What gives? When running a phone sensor app, the proximity always reads "Near."
Any Ideas???!!!
Click to expand...
Click to collapse
I put a glass screen protector on which covered the proximity sensor and I got the same issues. I'm just waiting for something to get rid of the proximity sensor altogether.
hphan said:
I put a glass screen protector on which covered the proximity sensor and I got the same issues. I'm just waiting for something to get rid of the proximity sensor altogether.
Click to expand...
Click to collapse
I just received my yootech screen protector and that solved all my issues. The sensor on these things are really sensitive.
Sent from my LG-H811 using XDA Free mobile app
I may have the answer for you hopefully you didn't trash the original screen.
I was having the same issue as you so I went back and throughly examined the original front assembly and found that there is a rubber spacer with two small holes in it that sits down in the hole where the proximity sensor goes. This rubber piece was not on the OEM replacement screen assembly that I had purchased. After pulling this piece out of the original screen and putting it in my new replacement screen the problem stopped. Phone now works like new again!!! Hopefully this solves your problem also.
Thanks a ton!!!!!
mhozlock said:
I may have the answer for you hopefully you didn't trash the original screen.
I was having the same issue as you so I went back and throughly examined the original front assembly and found that there is a rubber spacer with two small holes in it that sits down in the hole where the proximity sensor goes. This rubber piece was not on the OEM replacement screen assembly that I had purchased. After pulling this piece out of the original screen and putting it in my new replacement screen the problem stopped. Phone now works like new again!!! Hopefully this solves your problem also.
Click to expand...
Click to collapse
:good:
It worked. This little sucker made the prox sensor to be as 'near' all the time. so calls or knock code were not working.
Rechecked the original frame and removed the prox assembly you mentioned, two other rubber fillers and the ear piece grill.
Worked like a charm.
Thanks a ton. Have attached a pic for users still looking for a solution.
Sud
Dude you are the man! I also replaced my own screen (was almost too easy) but missed this little rubber piece. I scoured the internet and tried everything else, but this ACTUALLY fixed it. Thanks a million!!!
To everyone else still having screen issues: it is a known problem and apparently there are several solutions out there. Most likely you need to do one or more of the following: get your finger off the sensor, re-calibrate it (type 277634#*# in phone dialer. Note: I actually did not have this specific calibration setting on my g4, but others do), software update (probably not), hard reset your phone, or replace your proximity sensor (download one of the apps out there first and run a test).
If non of that works you probably need a new phone XD
Update: You will need the 2 other rubber pieces (mentioned above) for your microphones, otherwise everyone will complain about how you sound on the other end.
You sir are a legend !
This work perfect for me. This should be made a top post as it has just saved me countless time and money.
Hope you have a merry Xmas
Thank you thank you thank you!!!
So tired of trying to figure out 'how to ask' the right question for this issue! Came across this thread and fortunately DID NOT throw out the old screen/digitizer after I replaced with OEM new unit but there were NO instructions regarding this little rubber piece! Couldn't upload the picture but it's EXACTLY like your pic! Thanks again for sharing! I'm fixed!!!
geekMeOutPlease said:
Dude you are the man! I also replaced my own screen (was almost too easy) but missed this little rubber piece. I scoured the internet and tried everything else, but this ACTUALLY fixed it. Thanks a million!!!
To everyone else still having screen issues: it is a known problem and apparently there are several solutions out there. Most likely you need to do one or more of the following: get your finger off the sensor, re-calibrate it (type 277634#*# in phone dialer. Note: I actually did not have this specific calibration setting on my g4, but others do), software update (probably not), hard reset your phone, or replace your proximity sensor (download one of the apps out there first and run a test).
If non of that works you probably need a new phone XD
Update: You will need the 2 other rubber pieces (mentioned above) for your microphones, otherwise everyone will complain about how you sound on the other end.
Click to expand...
Click to collapse
Just finished an LG G4 replacement. Had the same issue and the same fix listed above. Pop the little rubber seating out and into the new screen, works like a charm.
Just cracked my screen..
Where can I find the OEM replacement screen from reliable sources?
blakechan said:
Just cracked my screen..
Where can I find the OEM replacement screen from reliable sources?
Click to expand...
Click to collapse
Try Etradesupply, I bought from them before, part came in good quality though it cost higher than ebay and Amazon, no complaints. http://www.etradesupply.com/lg-g4-vs986-lcd-assembly-with-frame-no-small-parts-black.html
Thank you resolved my issue
---------- Post added at 11:57 PM ---------- Previous post was at 11:49 PM ----------
blakechan said:
Just cracked my screen..
Where can I find the OEM replacement screen from reliable sources?
Click to expand...
Click to collapse
I just replacement my screen from fixez.com,
very important make sure you save the rubber from the proximity sensor and install it on the new display
I kinda threw my old screen away... Anyone knows if I can find a new little rubber piece (whatever it is) and if so, where? Thanks a lot!
sud_ran said:
:good:
It worked. This little sucker made the prox sensor to be as 'near' all the time. so calls or knock code were not working.
Rechecked the original frame and removed the prox assembly you mentioned, two other rubber fillers and the ear piece grill.
Worked like a charm.
Thanks a ton. Have attached a pic for users still looking for a solution.
Sud
Click to expand...
Click to collapse
Thanks your for your post - Saved my G4 after replacing my cracked LCD at repair shop that failed to transfer that little rubber piece.
I went back the shop and asked for the my old cracked screen, opened up my phone and put the little piece and phone works like a charm!
Thanks a million for the post and photo!!!!!!!!!!!!!!!:good::good:
For those who lost the rubber
hello guys. I have the H818P LG G4 model and when buying the screen I thought I must buy a dual-sim compatible frame (but now I think that even other screen models work. I didn't notice any difference when I disassembled the phone - but never tried). long story short, I had to send my phone to Iraq to find a compatible screen replacement and I received it back without the little rubber, with all the problems above. I had to improvise until I get my old frame back.
I tried all the apps but none of them worked. Your phone needs to be rooted to disable the proximity sensor, which is extremely risky on LG G4 (and especially on my model) as they don't get proper focus. you also need to downgrade to lollipop if you upgraded your android version to marshmallow. it is quiet complicated.
I read a solution suggesting to put a little piece of foil paper in front of the sensor to reflect the light back to it. It's easier and surprisingly less risky than messing with the software. I'm going to disassemble my phone and try it now.
update: the role of the aluminium foil is not to reflect light, but to obstruct it. the sensor is composed of two compounds: infrared emitter and light detector. the infrared shouldn't reach the light detector if you want the proximity sensor to remain off. After a couple of tries, I used a small piece of duct tape to cover them both. Works fine. side effect: automatic luminosity thinks it's always dark. I didn't bother dissembling my phone again to uncover the light sensor as I don't use automatic luminosity that much and that I'm going to get the rubber within two weeks.
This works. Perfect solution. Had the same problem after a screen replacement
Awesome!
[email protected] said:
Thanks your for your post - Saved my G4 after replacing my cracked LCD at repair shop that failed to transfer that little rubber piece.
I went back the shop and asked for the my old cracked screen, opened up my phone and put the little piece and phone works like a charm!
Thanks a million for the post and photo!!!!!!!!!!!!!!!:good::good:
Click to expand...
Click to collapse
Glad it helped. Enjoy.
I got rid of my G4 after that bootloop auto shut off issue and bought a N6P.
Just restored G4 yesterday with the new method turning off the big cores. Its one of the best phones i had, wish i could get the motherboard fixed under warranty..
Unfortunately i moved out of USA so can't do that anymore.
Thanks a Million!!!! Mhozlock's fix and sud_ran's pictures saved my day! Thought I had somehow ****ed up my girl's phone's proximity sensor when I replaced the screen! Thanks!
mhozlock said:
I may have the answer for you hopefully you didn't trash the original screen.
I was having the same issue as you so I went back and throughly examined the original front assembly and found that there is a rubber spacer with two small holes in it that sits down in the hole where the proximity sensor goes. This rubber piece was not on the OEM replacement screen assembly that I had purchased. After pulling this piece out of the original screen and putting it in my new replacement screen the problem stopped. Phone now works like new again!!! Hopefully this solves your problem also.
Click to expand...
Click to collapse
You just saved my life
Thank you for the tipp. Now the proximity sensor is working again!
mhozlock said:
I may have the answer for you hopefully you didn't trash the original screen.
I was having the same issue as you so I went back and throughly examined the original front assembly and found that there is a rubber spacer with two small holes in it that sits down in the hole where the proximity sensor goes. This rubber piece was not on the OEM replacement screen assembly that I had purchased. After pulling this piece out of the original screen and putting it in my new replacement screen the problem stopped. Phone now works like new again!!! Hopefully this solves your problem also.
Click to expand...
Click to collapse
sud_ran said:
:good:
It worked. This little sucker made the prox sensor to be as 'near' all the time. so calls or knock code were not working.
Rechecked the original frame and removed the prox assembly you mentioned, two other rubber fillers and the ear piece grill.
Worked like a charm.
Thanks a ton. Have attached a pic for users still looking for a solution.
Sud
Click to expand...
Click to collapse
Thank you! This must be the problem. I'm guessing that's why the phone speaker has gone super quiet too – I must have lost the gasket for that as well. Wish these gaskets were mentioned in the tear down video I followed (https://www.youtube.com/watch?v=iS02J12I1MU), or that I'd been careful enough to notice the damn things. Unfortunately, I chucked the old frame last week so I can't cannibalize it now
If you end up in my situation there seems to be three options:
1) Buy a broken spares-or-repairs G4 on Ebay and cannibalize it. There are a few out there but they tend to be kinda pricey (£40+) for a broken phone
2) Buy a spare part. The G4 prox sensor gasket number is MBL66397801. Some parts retailers list it but none have it in stock currently (Sep 2016)
3) Try making your own by poking holes in a bit of tape: https://www.youtube.com/watch?v=ZzbznNb-aXM I'm gonna give this a go tonight... wish me luck!

Xiaomi MI5 - Randomly unresponsive touchscreen

Hello guys, so I recently received an MI5 I ordered on Gearbest, in the 64gb international version (MIUI Global 8.2.2.0).
From day one, the touchscreen had the bad habit of going unresponsive randomly, meaning i have to struggle to swipe/click. Using hard keys (home, power) somehow fixes the issue for a few minutes but that's all. I unlocked the bootloader with Mi Unlock, and tried the latest build of LineageOS, and even flashed next the latest MIUI international developper build (29/06). On all of these 3 ROMs, the issue persists (and I went full wipe each time).
At the phone start, it is generally OK for a bunch of minutes, and then randomly becomes unresponsive.
I searched on the internet and did not find fixes, and i'm still unsure whether it's software or hardware related, even though I fear its the second option.
Would any of you have any more information on this subject?
To rule out any possible software issues, I'd flash the latest stable ROM.
Give that a shot and then see if the problem persists.
Well, the phone came new with the latest MIUI Global ROM (8.2.2.0), and since first start the problem was here. In the beginning I thought that it was just the phone lagging while setting up, but as time passed it was still there, no matter which ROM I flashed.
So, is there a potential software fix, or is this an hardware issue?
I am having the same issue, i hope its not hardware related :/
vlatko98 said:
I am having the same issue, i hope its not hardware related :/
Click to expand...
Click to collapse
Unfortunately, I'm starting to think it is, considering what I found on the internet. I'm kinda deceived by Xiaomi, which I thought was great value for the price. There is not even an official statement about this, even though many users reported the issue.
damien2702 said:
Unfortunately, I'm starting to think it is, considering what I found on the internet. I'm kinda deceived by Xiaomi, which I thought was great value for the price. There is not even an official statement about this, even though many users reported the issue.
Click to expand...
Click to collapse
Sadly thats the problem with Chinese phones,some of us that will face this problem's have no protection,we cant return the phone and get a new one,its better for us just to buy a new screen off aliexpress for 20euros than to wait 2 month's to ship it back and wait for it to be fixed and then returned and you pay the shipping costs and also the repair costs,but thats the risk we accept when we want the best bang for the buck.
Also poor quality control on the products to cut the costs is the real reason behind the problems we face
Had the same problem, it got fixed in the latest developer 7.6.29.
mundano said:
Had the same problem, it got fixed in the latest developer 7.6.29.
Click to expand...
Click to collapse
Hi, I indeed tried this solution, even thought it worked for a few hours.. But it came back soon enough
Guys,hello! I have a good news for you,i hope so. Ok. 1st of all I defeated the error with the screen off.
Here is my story.
I just wanted a black mi5. After some time found on ebay. I bought it, he arrived, after two days the touchscreen stopped working absolutely randomly.
The seller said that everything will do. I sent, he did nothing! Sent me. It all happened twice. Exactly twice I sent my mi5 from Russia to China! I read all the messages and tried everything. Nothing helped.
That's what I tried and that does not exactly work.
1. It does not depend on the version of miui or linegeOS.
2.This does not depend on time.
3.This does not depend on temperature.
I experimented, heated it, lay in the refrigerator. I clicked on the screen / body.
In the end, I understood the reason-static electricity.
HOW TO FIX IT!
1.Remove the back cover.
2. Twist the screws in the center and bottom, possibly a pair on the right side.
3. Try so far without the lid closed.
4.If the screen stops responding, try unscrewing the other screws.
5.Repeat, until you find the right combination and the touchscreen will work constantly.
Guys, I really helped it.
I hope this also solves your problem with the screen. Good luck!
I cant add a picture as a new user(((
Red squares-deleted screws on my configurations.
Green rounds-screws which i left without any changes.You can write me:[email protected]
or call me Skype: Griha3212
if you dont understand something in my instruction.
Griha3212 said:
Guys,hello! I have a good news for you,i hope so. Ok. 1st of all I defeated the error with the screen off.
Here is my story.
I just wanted a black mi5. After some time found on ebay. I bought it, he arrived, after two days the touchscreen stopped working absolutely randomly.
The seller said that everything will do. I sent, he did nothing! Sent me. It all happened twice. Exactly twice I sent my mi5 from Russia to China! I read all the messages and tried everything. Nothing helped.
That's what I tried and that does not exactly work.
1. It does not depend on the version of miui or linegeOS.
2.This does not depend on time.
3.This does not depend on temperature.
I experimented, heated it, lay in the refrigerator. I clicked on the screen / body.
In the end, I understood the reason-static electricity.
HOW TO FIX IT!
1.Remove the back cover.
2. Twist the screws in the center and bottom, possibly a pair on the right side.
3. Try so far without the lid closed.
4.If the screen stops responding, try unscrewing the other screws.
5.Repeat, until you find the right combination and the touchscreen will work constantly.
Guys, I really helped it.
I hope this also solves your problem with the screen. Good luck!
I cant add a picture as a new user(((
Red squares-deleted screws on my configurations.
Green rounds-screws which i left without any changes.You can write me:[email protected]
or call me Skype: Griha3212
if you dont understand something in my instruction.
Click to expand...
Click to collapse
please can you make video this help a lot
Hey guys, thanks to Griha3212 I found out on my Mi 5 it's the screw in the top middle part of the phone, the one with warranty sticker. Just loosen it a bit. It works fine after I loosen it. Tried tightening it too and the problem came back.
mi5 unresponsive
mundano said:
Had the same problem, it got fixed in the latest developer 7.6.29.
Click to expand...
Click to collapse
still fixed at these days? now after screen replacement and an update, the touch becomes unresponsive
Griha3212 said:
Guys,hello! I have a good news for you,i hope so. Ok. 1st of all I defeated the error with the screen off.
Here is my story.
I just wanted a black mi5. After some time found on ebay. I bought it, he arrived, after two days the touchscreen stopped working absolutely randomly.
The seller said that everything will do. I sent, he did nothing! Sent me. It all happened twice. Exactly twice I sent my mi5 from Russia to China! I read all the messages and tried everything. Nothing helped.
That's what I tried and that does not exactly work.
1. It does not depend on the version of miui or linegeOS.
2.This does not depend on time.
3.This does not depend on temperature.
I experimented, heated it, lay in the refrigerator. I clicked on the screen / body.
In the end, I understood the reason-static electricity.
HOW TO FIX IT!
1.Remove the back cover.
2. Twist the screws in the center and bottom, possibly a pair on the right side.
3. Try so far without the lid closed.
4.If the screen stops responding, try unscrewing the other screws.
5.Repeat, until you find the right combination and the touchscreen will work constantly.
Guys, I really helped it.
I hope this also solves your problem with the screen. Good luck!
I cant add a picture as a new user(((
Red squares-deleted screws on my configurations.
Green rounds-screws which i left without any changes.You can write me:[email protected]
or call me Skype: Griha3212
if you dont understand something in my instruction.
Click to expand...
Click to collapse
This is still working. Thx for help. Saved my phone after screen replacement.
Which Screws`?
I have the same Problem with my Mi5. Is there anyone who has a Picture for me, which Srews i have to loosen? Thanks
hotdogg1979 said:
I have the same Problem with my Mi5. Is there anyone who has a Picture for me, which Srews i have to loosen? Thanks
Click to expand...
Click to collapse
Hi Guys, I hope my solution helps to solve your problem. It is definitely about the screws. For me, I have found out that one screw is very slightly thinner than the others (of course the one with warranty stick should go to the centre and there is one silver metal going top left). This thinner screw should go up middle. That worked for me.
Does the screws trick work on your phone? Plz tell me.
Griha3212 said:
Guys,hello! I have a good news for you,i hope so. Ok. 1st of all I defeated the error with the screen off.
Here is my story.
I just wanted a black mi5. After some time found on ebay. I bought it, he arrived, after two days the touchscreen stopped working absolutely randomly.
The seller said that everything will do. I sent, he did nothing! Sent me. It all happened twice. Exactly twice I sent my mi5 from Russia to China! I read all the messages and tried everything. Nothing helped.
That's what I tried and that does not exactly work.
1. It does not depend on the version of miui or linegeOS.
2.This does not depend on time.
3.This does not depend on temperature.
I experimented, heated it, lay in the refrigerator. I clicked on the screen / body.
In the end, I understood the reason-static electricity.
HOW TO FIX IT!
1.Remove the back cover.
2. Twist the screws in the center and bottom, possibly a pair on the right side.
3. Try so far without the lid closed.
4.If the screen stops responding, try unscrewing the other screws.
5.Repeat, until you find the right combination and the touchscreen will work constantly.
Guys, I really helped it.
I hope this also solves your problem with the screen. Good luck!
I cant add a picture as a new user(((
Red squares-deleted screws on my configurations.
Green rounds-screws which i left without any changes.You can write me:[email protected]
or call me Skype: Griha3212
if you dont understand something in my instruction.
Click to expand...
Click to collapse
Thank you, you saved my Gemini :good:
Doesn't work for me. I tried with all screws.
Sent from my MI 5 using Tapatalk
screw solution works !!
I tried this solution with Redmi 2 and its the exact same screw which is the problem ie the screw right in the middle of the phone.
i loosed it slightly and now no more screen freezes. :good:
Hi I'm attaching an image with the screws numbered.
Griha3212 said:
Guys,hello! I have a good news for you,i hope so. Ok. 1st of all I defeated the error with the screen off.
Here is my story.
I just wanted a black mi5. After some time found on ebay. I bought it, he arrived, after two days the touchscreen stopped working absolutely randomly.
The seller said that everything will do. I sent, he did nothing! Sent me. It all happened twice. Exactly twice I sent my mi5 from Russia to China! I read all the messages and tried everything. Nothing helped.
That's what I tried and that does not exactly work.
1. It does not depend on the version of miui or linegeOS.
2.This does not depend on time.
3.This does not depend on temperature.
I experimented, heated it, lay in the refrigerator. I clicked on the screen / body.
In the end, I understood the reason-static electricity.
HOW TO FIX IT!
1.Remove the back cover.
2. Twist the screws in the center and bottom, possibly a pair on the right side.
3. Try so far without the lid closed.
4.If the screen stops responding, try unscrewing the other screws.
5.Repeat, until you find the right combination and the touchscreen will work constantly.
Guys, I really helped it.
I hope this also solves your problem with the screen. Good luck!
I cant add a picture as a new user(((
Red squares-deleted screws on my configurations.
Green rounds-screws which i left without any changes.You can write me:[email protected]
or call me Skype: Griha3212
if you dont understand something in my instruction.
Click to expand...
Click to collapse
It would be nice if you post which numbers have you tried.
Richardyii said:
Hey guys, thanks to Griha3212 I found out on my Mi 5 it's the screw in the top middle part of the phone, the one with warranty sticker. Just loosen it a bit. It works fine after I loosen it. Tried tightening it too and the problem came back.
Click to expand...
Click to collapse
Did you mean that, when loosen it, the problem dissapears immediately without rebooting? Because I've tried it and it does not work immediately.
Mamihla said:
Hi Guys, I hope my solution helps to solve your problem. It is definitely about the screws. For me, I have found out that one screw is very slightly thinner than the others (of course the one with warranty stick should go to the centre and there is one silver metal going top left). This thinner screw should go up middle. That worked for me.
Click to expand...
Click to collapse
I think your explaination is a little bit confusing. Did you mean that the thinner screw (the number 1 on the image attached) has to be swapped with the number 2? Or with the one with the warranty (number 5)?
Please if any other one found a combination that works, post it using the numbers of my attachment as reference. I have been tried several combinations amd no one seem to work.

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