Database Develop

Trackball boot

PLZ help im freaking out. i accidentally booted into the blue light mode, but when i pulled the battery and rebooted the backlight wouldnt work. i could see everything and even navigate my phone but only under a light. the backlight just wont turn on during boot and changing the setting doesnt help.
i dont get it the thing was working 10 minutes ago and now i cant use it what should i do? i love this phone but i cant afford a new one. is there a way to tell it to turn on during boot in the console?

ok new update the backlight works if i have the keyboard open. i know 100% its software and not the screen. something when wrong with the boot prosses or something.
i think the trackball boot (bluelight boot) must have options but wont display on the screen maybe. like a bios menu. this is very infuriating

Why don't you restore a recent backup?

i have even went as far as downgrading with the .nbh file. and re installing the bootloader (Just the original, didnt want a brick).

Definitely NOT a software problem.
This is a HARDWARE problem -- hence the fact that it works when the keyboard is open.
When you pulled the battery, you might have twisted/pulled something.
*** I would check the ribbon cable connecting the display to the main body!!!
Bluelight mode (where you end up by booting with the trackball pushed in), is just a serial console allowing interfacing with the radio firmware. Unless you actually had a serial cable connected and punched in some commands (which happen to be security locked, therefore wouldn't work for you anyways), bluelight mode wouldn't be able to do this.

lbcoder said:
Definitely NOT a software problem.
This is a HARDWARE problem -- hence the fact that it works when the keyboard is open.
When you pulled the battery, you might have twisted/pulled something.
*** I would check the ribbon cable connecting the display to the main body!!!
Bluelight mode (where you end up by booting with the trackball pushed in), is just a serial console allowing interfacing with the radio firmware. Unless you actually had a serial cable connected and punched in some commands (which happen to be security locked, therefore wouldn't work for you anyways), bluelight mode wouldn't be able to do this.
Click to expand...
Click to collapse
if that were the case than wouldnt it flicker if i flex the screen/hinge ? ill try anything at this point cuz im outa warranty and have no money . im going to the store later trying to update to official 1.6 so i can convince them its software related and they may replace it for me.

oh forgot to mention that if i close it and open it the light stays off untill i hit end and unlock with menu again. im not to sure if that helps.

OK OK OK you are right. i just half closed it and the light stayed on untill it compleatly closed (so the screen flipped, i thought that is what triggered it) and then i got it to stay on completely closed and then the problem flipped to it wouldnt come on while open and now back to the way it was. so im going to go buy a T5 screw driver today and clean the contacts of the ribon cable and reinsert it (i have had experience with that just need to know what ribon. a pic would be nice)

projectzro said:
OK OK OK you are right. i just half closed it and the light stayed on untill it compleatly closed (so the screen flipped, i thought that is what triggered it) and then i got it to stay on completely closed and then the problem flipped to it wouldnt come on while open and now back to the way it was. so im going to go buy a T5 screw driver today and clean the contacts of the ribon cable and reinsert it (i have had experience with that just need to know what ribon. a pic would be nice)
Click to expand...
Click to collapse
There is only one ribbon running to the screen. Try THAT one.

lbcoder said:
There is only one ribbon running to the screen. Try THAT one.
Click to expand...
Click to collapse
LOL lbcoder - always practical.

lbcoder said:
There is only one ribbon running to the screen. Try THAT one.
Click to expand...
Click to collapse
lol ok didn't know that a lot of the devices I have taken apart have had 2 one for the desplay and one for the backlight. Getting a T5 screw driver in half an hour. Will post results later. Hopefully this works, therr area few more ppl with the same problem.

projectzro said:
lol ok didn't know that a lot of the devices I have taken apart have had 2 one for the desplay and one for the backlight. Getting a T5 screw driver in half an hour. Will post results later. Hopefully this works, therr area few more ppl with the same problem.
Click to expand...
Click to collapse
There are two wires going to the screen.. sounds like the "top" one is loose... The jtag photos will give you an idea (it's the two com ports next to the jtag test points)
These are usually taped down very well..
Also you need both a T5 and T6.. the "Security" (has black void sticker) screw is larger than the others.. and a small flat head screwdriver to unclip the cover..
If all else fails: replacement screens seem much cheaper than the phone on ebay.

ezterry said:
There are two wires going to the screen.. sounds like the "top" one is loose... The jtag photos will give you an idea (it's the two com ports next to the jtag test points)
These are usually taped down very well..
Also you need both a T5 and T6.. the "Security" (has black void sticker) screw is larger than the others.. and a small flat head screwdriver to unclip the cover..
If all else fails: replacement screens seem much cheaper than the phone on ebay.
Click to expand...
Click to collapse
ok got it apart 3 times and no luck its prolly the ribbon cable. im going to test that soon. i have a donor phone comming soon from a friend who dropped it in water, the ribbon cable should be fine to use. if that doesnt work im thinking maybe it is software. either way if i cant get it fixed by next month im spending $410 on a new mytouch 3G brand new from the store and getting insurance XP

[Help] Motorola Droid parts of touch screen unresponsive.

So basically I've had my Droid 1 since March of 2010, I LOVE my phone. Today I was out in the sun, and it just started freaking out, I put it on a table from my cool pocket for literally 4 minutes. Now two things are happening:
the soft key search button has stopped working(keyboard one still works), and the place where the back button is on my soft keyboard is borked.
Is there anything I can try/do to possibly attempt to fix the problem? I've never run into an issue like this before. :/

okay... so I gave it to my brother to look at and suddenly it's working again...
Is there anything that could cause this?

We don't really know what causes the touchscreen issue but we suspect that the moisture is the main problem. Also, a defective or improper charging or a bad flex cable can lead to something like that. I am facing exactly the same problem (paradoxally, after flashing a new ROM - coincidence maybe) but here it didn't dissappear. I will replace the digitizer. I think it's the only way to get rid of it. If it shows up again, I'm sorry!

When do you plan to change out your digitizer? If anything I'd love to see your results before I go for it.
Oh the joys of being a broke college student.

The same problem happened to my D1!! If it re-occurs then it means that your digitizer has broken. The only solution is to replace it or buy a new phone (If you do a search on "Droid" and "digitizer" you will find many people who have had this same problem)
I researched repair stores and finally settled on a place called Mission Repair in KS (missionrepair.com). Sent my precious Droid to them on a Tuesday and got it back as good as new on Friday for a cost (including Fedex) of around $90 - certainly a lot cheaper than a new phone.
Has been working fine again since.

I heard it is a common issue on the phone, you can use an application like multitouch visualizer (on the market) to check the functional parts of the screen.
The problem I have is with the keyboard, I was using the right key to pass the pages on kindle for android and now I have to press it harder, it also happened with one of the space buttons, thanks god those are 3...

Ends up I'm not entirely retarded, and got the extended warranty for 1.99 extra month. I traded it in, but the replacement has same issues. Might be time to upgrade my phone...

Try replacing Flex cable instead of digitizer.

If it's not damaged.. hold off on the digitalizer and cable replacement.. grab ya some descant packets (do not eat bags that come with new items that can't stand any moisture) ziplock it up with them.. with battery out of it.. leave it over night.. bam..
BRITT#OGDROID

Oh.. and the OG doesn't like sweaty pockets or extreme humidity.. it's definitely your problem if not damaged.. bet you're in the south..
BRITT#OGDROID

[Q] G1 motherboard fault causing dead touchscreen

I have been trying to repair this phone, but the usual faults have not turned out to be the problem. This is the background on the repair efforts:
In my research I found 3 main causes for a dead touch screen.
1) Corruption of system software.
2) Failure of digitizer cable (hinge FPC)
3) Failure of digitizer screen (touch panel)
To check for #1, I flashed the firmware again (after a wipe). I downgraded to Android 1.5 because I wanted to root the phone and install CyanogenMod Android 2.2 Froyo.
This was a big mistake because I learned that when you don't have a working touch screen, you cannot get past the "Touch the Android to Start" screen.
So on to step 2 - replace cable (hinge FPC). I have a G1 parts phone that was lightly used in good condition before it was damaged. There was no damage to the sliding section, so I expected the hinge FPC to be in good condition.
So I installed the hinge assembly with its hinge FPC from the parts phone, but this did not work either.
So next I installed a new touch panel (digitizer screen), but that did not fix the problem either.
I had a chance to borrow a working G1 motherboard, and I was surprised to see that the phone was working with the borrowed motherboard.
So my question is whether my problem motherboard can be recovered with a software solution, or if these symptoms indicate a hardware failure.
I thought that a wipe followed by firmware flash would eliminate all soft system errors, but I am not sure if the wipe and flash really erase absolutely everything, or if there is something else I need to do to get it working again.
Thanks.

more than likly it was the point in the motherboard where the flex cable connects. try using some electronic parts cleaner.
i have ran into this a few times and simply replacing the motherboard has only helped a twice, when i cleaned it up it worked.

That sounds reasonable. I still have some Tweek. I'll give that a try. It worked with the same kinds of problems on computer sockets.

Okay. You are on the right track. When I went back to the phone, I actually got two taps out of the screen, which it hasn't done in a long, long time. (I was running keyboard only for a long time before I could take it down to fix it.) I attribute that to just disturbing the contacts with so many assembly/disassembly efforts.
After I applied Tweek to the joints, it ran well.... for about an hour. Trying again was no luck, so I don't think I'm going to mess with the contacts anymore. By the time you figure how infrequently motherboards come up for sale and the cost, I think I'd do just as well with a trade in on a flat-rate repair.
But at least now we know for the record that there is another cause of dead touch screens.

well i have about 13 motherboards, if your interested let me know

Thanks. What has been your experience with changing motherboards?
The reason I ask is because the service manual wants the phone to be tuned again after a motherboard swap. I see a lot of people changing motherboards, and I can't believe that is much of a problem when you don't see anyone complaining about the phone not working well afterwards.
A spare motherboard might be a good idea for a diagnostic tool. It would have saved me a lot of work changing the touch panel and cables if I would have had a motherboard to try first.
I thought I had a good spare in a damaged phone, but when I took it out the other day to test this phone, I found out it had physical damage too. The SIM holder and RF shielding were dented, but the killer was that the daughterboard cable connector was bent.
I suppose back when the phones were $900 you might try to fix something like that, but it's hard enough to do a connector swap on a computer motherboard. I can't imagine that even the factory has the equipment to properly swap the connector even if you can get the part.
How much do you want for a motherboard? On that famous auction site I've seen them go for around $10 to $30. I could kick myself for not buying the last one I saw at $7 because I thought I had a spare.

[Q] Headless Mobo data retrieval.

Hey guys bout to beat my head against a wall on this one.
A buddy of mine "tired" to replace his front glass on his Moto X and ended up destroying it. Apparently he cooked it pretty well with a hair dryer on high in the process of trying to the glass off and fried the LCD and digitizer and possibly more. Anyway he brought me over a bag of parts and asked if i could retrieve his data. He was running unrooted stock with a locked bootloader and I'm assuming debugging turned off but not sure.
So this is the part i start hitting my head against the wall. After reassembling it without the LCD/digitizer assembly pluged in, I pluged it in via USB and it installs it's self as a MOTOROLA PHONE, and seams to be using the USB INPUT and HID Compliant Vendor Defined Device drivers. I cant for the life of me get it to use the right drivers. I've installed Motorola's driver/device manager and run the Motorola driver installer but nothing is working.
Really don't know that much about the Moto X as I don't own one myself but i'd assume that it should install as a specific device and not a generic MOTOROLA PHONE as well as using MTP drivers instead of USB INPUT
Basically though, short of the driver issues, my main question is. Is there anyway of pulling data from a headless, bootloader locked, ADB disabled device? I personally don't think there is but just in case i thought i'd ask.
Would rather not buy a new LCD/Digitizer assembly for $70 if the main board got fried from the heat of the hairdryer, but might have to if there's no other way, at least then I could see what going on.
Have checked though the forms and didn't see any other similar topics on this, so if I missed it please link it.
Thanks ahead of time.
~Ninjaboy837

Ninjaboy837 said:
Hey guys bout to beat my head against a wall on this one.
A buddy of mine "tired" to replace his front glass on his Moto X and ended up destroying it. Apparently he cooked it pretty well with a hair dryer on high in the process of trying to the glass off and fried the LCD and digitizer and possibly more. Anyway he brought me over a bag of parts and asked if i could retrieve his data. He was running unrooted stock with a locked bootloader and I'm assuming debugging turned off but not sure.
So this is the part i start hitting my head against the wall. After reassembling it without the LCD/digitizer assembly pluged in, I pluged it in via USB and it installs it's self as a MOTOROLA PHONE, and seams to be using the USB INPUT and HID Compliant Vendor Defined Device drivers. I cant for the life of me get it to use the right drivers. I've installed Motorola's driver/device manager and run the Motorola driver installer but nothing is working.
Really don't know that much about the Moto X as I don't own one myself but i'd assume that it should install as a specific device and not a generic MOTOROLA PHONE as well as using MTP drivers instead of USB INPUT
Basically though, short of the driver issues, my main question is. Is there anyway of pulling data from a headless, bootloader locked, ADB disabled device? I personally don't think there is but just in case i thought i'd ask.
Would rather not buy a new LCD/Digitizer assembly for $70 if the main board got fried from the heat of the hairdryer, but might have to if there's no other way, at least then I could see what going on.
Have checked though the forms and didn't see any other similar topics on this, so if I missed it please link it.
Thanks ahead of time.
~Ninjaboy837
Click to expand...
Click to collapse
Now , I'm not a hardware specialist or anything ,but , do you suppose you could somehow "Directly" access data from the NAND chip ?
Ref: " https://www.ifixit.com/Teardown/Motorola+Moto+X+Teardown/16867 "

I did a little research on the NAND chip, unfortunately there is an NDA in place, so you probably won't be able to find out what the pins are to access it. I have been wrong before. Problem with using the hair dryer on high is that heat=energy in motion, which can cause electron flow.
If your friend didn't take appropriate precautions, ie grounding himself, ESD pad, dry hands, it is possible he shorted the entire assembly, and all his data is destroyed, especially if he didn't disconnect the battery.
Finally, the bag of parts=sensitive electrical components in a heavily charged static bag. Chances are that could've killed any chance of getting data.
The reason that your computer is recognizing the device as a Motorola Phone and that is it is as a failsafe, the processor isn't completely dead and is doing what it can to help you, by trolling you.
Good Luck!

I picked up a 4.4.2 Moto X with a bad battery and a bad (broken panel, no display) screen assembly. It did the same as what you're describing when hooked up via USB. After installing a good battery and plugging in a working screen it booted right up without any trouble. Before the parts the phone would light a green LED in the earpiece when plugged into the charger. Unless he really super baked the crap out of it you can probably get it working with a screen and possibly a battery.
If you do need a screen I was looking at the $52 dollar option on ebay myself before I found another option, it's auction number 251892071870 .

I'd suggest trying this http://forum.xda-developers.com/showthread.php?t=2786395
You'd be able to run the recovery by pressing all three buttons when the device is off to get to the bootloader. Then when you guess that its loaded press volume down once, then volume up once. Then wait 10-30 seconds for recovery to load

tormin said:
I picked up a 4.4.2 Moto X with a bad battery and a bad (broken panel, no display) screen assembly. It did the same as what you're describing when hooked up via USB. After installing a good battery and plugging in a working screen it booted right up without any trouble. Before the parts the phone would light a green LED in the earpiece when plugged into the charger. Unless he really super baked the crap out of it you can probably get it working with a screen and possibly a battery.
If you do need a screen I was looking at the $52 dollar option on ebay myself before I found another option, it's auction number 251892071870 .
Click to expand...
Click to collapse
I might just have to try that, i did notice with the battery out and connected via USB the phone shows up as a USB INPUT, but as soon as you plug in the battery and the X8 computing system then it switches to MOTOROLA PHONE.

mrmidnight said:
I did a little research on the NAND chip, unfortunately there is an NDA in place, so you probably won't be able to find out what the pins are to access it. I have been wrong before. Problem with using the hair dryer on high is that heat=energy in motion, which can cause electron flow.
If your friend didn't take appropriate precautions, ie grounding himself, ESD pad, dry hands, it is possible he shorted the entire assembly, and all his data is destroyed, especially if he didn't disconnect the battery.
Finally, the bag of parts=sensitive electrical components in a heavily charged static bag. Chances are that could've killed any chance of getting data.
The reason that your computer is recognizing the device as a Motorola Phone and that is it is as a failsafe, the processor isn't completely dead and is doing what it can to help you, by trolling you.
Good Luck!
Click to expand...
Click to collapse
Yea, some people don't realize the big affects of not following little precautions.
Found a article on hackaday about reading NAND chips in place on the pcb might give that a try if all else fails.
http://hackaday.com/2010/12/24/reading-nand-flash-chips-without-removing-them/
http://www.uchobby.com/index.php/2007/05/05/read-embedded-flash-chips/

raddacle said:
I'd suggest trying this http://forum.xda-developers.com/showthread.php?t=2786395
You'd be able to run the recovery by pressing all three buttons when the device is off to get to the bootloader. Then when you guess that its loaded press volume down once, then volume up once. Then wait 10-30 seconds for recovery to load
Click to expand...
Click to collapse
When booting in to the Moto X's recovery does it start ADB? I'm not sure if ADB is enabled or not, but it's worth a shot. I've gotten spoiled with My TWRP recovery auto enabling ADB on recovery boot.
ooo just saw this, there might be hope after all
Ricky Divjakovski said:
for people who dont have adb enabled, i suggest you contact a kernel developer to automatically enable it in the default.prop and sideload the kernel in recovery!
i broke my S3 on stock so nothing was enabled.
i enabled adb via the default.prop and compiled the kernel and flashed in recovery(sideload).
now i have full control over the device.
Click to expand...
Click to collapse

Ninjaboy837 said:
When booting in to the Moto X's recovery does it start ADB? I'm not sure if ADB is enabled or not, but it's worth a shot. I've gotten spoiled with My TWRP recovery auto enabling ADB on recovery boot.
ooo just saw this, there might be hope after all
Click to expand...
Click to collapse
Hmm you know what, you're right. It seems Nexus devices have adb on stock recovery- Moto's don't. Though what you found might be gold, I hope you can bust out a modified kernel- or know someone who does.
EDIT: Though I don't know how you're going to get the Update.zip on the phone to flash it. Worse comes to worse you could plug a mouse into the phone and play a guessing game of what you're clicking on

No Audio after screen replacement

Hi,
I really need your help as I have no idea what to do.
After 1 month of using MI5 Pro Ceramic black I have broke my phone,First the touch worked and there was only vertical lines on the lcd in the spot of the shatter so I could operate but due to my stupidity and of force touching the broken glass these vertical lines started to cover all the screen (Everything worked well on the phone..Sound,Camera and etc..)
So I ordered from Aliexpress LCD + Touch screen for about 70$ (Included DHL Express shipment)
When I got the screen I started to disassamble the phone.. Got everything out,Took out the broken screen and pasted the new screen on the frame (Must say all these aliexpress screens are really bad,0% protection on the screen,Not sure about the LCD quality yet but glass is horrible..Started to scratch even before I used it)
Anyways to our point..
Started to assamble back everything.. Powered on the phone and Yay! Phone is working but...
No Sound,Firstly I checked settings and everything..Ran CIT test and everything that belongs to audio giving force close..
Calibrate Speaker PA test results : State-Get impedance failed!,Speaker Vendor-None
Vibration- FAIL no short and no long
Main mic speaker Feedback,Simulation call test,Front mic speaker feedback test,Top mic speaker feedback test,
everything when I enter it giving FC with that details :
"IlegalStateException:Unable to retrieve AudioRecord pointer for SetParameters() blablala...
Headphone mic feedback test (Called on an uninitialized AudioRecord)
So in short..
No Speaker,No Mic,No headphone Mic..
Now my question is what I need to do from now.. Its not firmware/software problem for sure as before I disassambled the phone everything worked well..
My first guess was the problem is on the Sub PCB but then I asked my self..If the USB-C is working and WiFI antenna giving full signal it means the Sub PCB works so what the hell is the problem? I really hope its not something in the PCB it self as it means throw everything to garbage.. ;<
Hope to hear suggests..
I thought to order the MI5 32GB Black version take out the Main PCB put the Pro Main PCB and put also the ceramic back cover but that I would do only if I know that the problem is from the sub PCB but if Headphone mic doesnt work (Which the Main PCB take care of) then its probably in the Main PCB??
Please help!

you didnt damage the pins on the press connector? is the press connector on the ribbon cable flush / fully inserted ? Are you sure you didnt kink the ribbon cable?
I haven't pulled a mi5 apart, but can only assume its like every other phone i have.

leighaus said:
you didnt damage the pins on the press connector? is the press connector on the ribbon cable flush / fully inserted ? Are you sure you didnt kink the ribbon cable?
I haven't pulled a mi5 apart, but can only assume its like every other phone i have.
Click to expand...
Click to collapse
The problem is that far as I understood of how the mi5 built and from how I saw it looks like..The Speaker located in the Sub PCB cover,Vibrate connected to subPCB,And all the SubPCB connected with the cable to the main PCB and I checked it connected good and no any damaged pins from what I was able to see..If there was damaged pins then the phone wont get charged as the USB-C wont be connected as it located in the SubPCB however it does work.. So I really have no idea what cause it..
Also the Headphone mic doesnt work in the tests..Anything related to Audio giving that FC with "AudioRecord" error..
I really must to know what causing it so I will know what to do ;<

Little update,
Just connected a bluetooth speaker,No any sound nothing..

Hi everyone! My MI5 has the same problems, no sound, mic, vibration, led buttons light, plugin earphones without notification's icon, can not play music, video offline and online video (Youtube, Facebook, live stream ..). It was happened when i replaced brooken screen. The first time when I turn on, evetything ok, I can play music through speaker, but now everything has gone..! Plz tell me how to slove this problem! Sorry for my poor E!

Hi, I ended up on buying the phone again... It's impossible to fix that problem as probably you did what I did and didn't place the motherboard correctly so a little bent probably happened and that cause to the problem.

edoroom said:
Hi, I ended up on buying the phone again... It's impossible to fix that problem as probably you did what I did and didn't place the motherboard correctly so a little bent probably happened and that cause to the problem.
Click to expand...
Click to collapse
Hi there! Care to elaborate a little more? I have also the same problem. I was replacing the rear camera module while the module I had received was broken to begin with. I hadn't really figured this out initially and I tried several times to attach it and test it, perhaps move the flex and retest, and at some I remember I found out the vibration was not there, but didn't pay attention to it as everything was open, until I found out the camera module was faulty in the end, and subsequently discovered also the whole issue with sound/vibration/key backlight etc. Instead of buying a new device, I was thinking to try and fix it, but still I'm a bit unsure about what the problem really was. From what I could figure, I didn't do anything different this particular time the audio/vibration didn't work, with respect to the previous times I attached and detached the motherboard. But is it definitely the board itself and not its flex connecting it to the sub-pcb? Could it be the sub-pcb itself or even both this and the board? In case I buy a new board (perhaps together with a sub-pcb just in case) to replace it which part should I watch out for, not to damage it again. Sorry for the many questions but you seem to be the only source of info for this specific problem.

deusxx said:
Hi there! Care to elaborate a little more? I have also the same problem. I was replacing the rear camera module while the module I had received was broken to begin with. I hadn't really figured this out initially and I tried several times to attach it and test it, perhaps move the flex and retest, and at some I remember I found out the vibration was not there, but didn't pay attention to it as everything was open, until I found out the camera module was faulty in the end, and subsequently discovered also the whole issue with sound/vibration/key backlight etc. Instead of buying a new device, I was thinking to try and fix it, but still I'm a bit unsure about what the problem really was. From what I could figure, I didn't do anything different this particular time the audio/vibration didn't work, with respect to the previous times I attached and detached the motherboard. But is it definitely the board itself and not its flex connecting it to the sub-pcb? Could it be the sub-pcb itself or even both this and the board? In case I buy a new board (perhaps together with a sub-pcb just in case) to replace it which part should I watch out for, not to damage it again. Sorry for the many questions but you seem to be the only source of info for this specific problem.
Click to expand...
Click to collapse
Hi sorry for late answer,I barley visit xda these times..
After I bought the MI5 again this time in the 64gb version I tested the old 128gb motherboard (The main one) and still same problem with Vibration/Sound (While all sensors work camera too)
Which means its not the sub-pcb problem,Its the main motherboard for sure,Now what cause it?
In my opinion when I pulled of the motherboard to put it on the new screen I insert it in a bad way which made it bent a little and probably the place I bent is where the audio and all the stuff goes on..
I'm pretty sure we cant really do something about that problem as problem related to motherboard it self are usually not fixable,But if you find something I will glad to get a feedback to test on my own bad motherboard so maybe I can back to the 128gb version ;| but I doubt it..

edoroom said:
Hi sorry for late answer,I barley visit xda these times..
After I bought the MI5 again this time in the 64gb version I tested the old 128gb motherboard (The main one) and still same problem with Vibration/Sound (While all sensors work camera too)
Which means its not the sub-pcb problem,Its the main motherboard for sure,Now what cause it?
In my opinion when I pulled of the motherboard to put it on the new screen I insert it in a bad way which made it bent a little and probably the place I bent is where the audio and all the stuff goes on..
I'm pretty sure we cant really do something about that problem as problem related to motherboard it self are usually not fixable,But if you find something I will glad to get a feedback to test on my own bad motherboard so maybe I can back to the 128gb version ;| but I doubt it..
Click to expand...
Click to collapse
Many thanks for the response! It sheds a little light indeed. I also ordered another phone to replace it as the cost of the motherboard seems to be equal approximately close to a new device. I'm with you, in the same view, I also once placed the motherboard quickly in the chassis without the screw that holds it together, in one of the 50 or so attempts to try and make the camera sensor I was replacing, visible to the OS, and this looseness was the unfortunate one perhaps (?). I too don't expect the sound to work again. I just wanted to double check the issue was not with the sub-pcb, which I did thanks to you. For sure I have no hopes for the mainboard to work again, but still, what keeps me from being certain it is actually the sound card that is the problem, is a very similar case I saw In a foreign forum, and also clues from my device which support the argument that the mainboard might have entered in a kind of diagnostic boot state due to a hardware fault that was apparent, where either some components are not initialized during boot, or their HW resources are taken over from the diag. ports and irqs that are enabled, in which case the issue can perhaps be fixed. For sure whenever I find a good deal on a new motherboard I will replace it, to keep it as a secondary phone, as I liked it quite a bit, but It would be interesting to see if this hypothesis holds or not. Anyway thanks again for the response!

Hi,
I've bought used mi5 with broken screen. After LCD replacement I've found that that phone has problem with sound. Exactly the same as in this thread - no sound, mic, vibration, led buttons light, plugin earphones without notification's icon, can't play music, video offline and online video (Youtube).
Someone already did LCD replacement on this phone and probably done something.
But what I discovered on this phone that problem start when battery charge aprox more then 60%.
I did flash one year old ROM via fastboot ( just to verify if it not the ROM problem) and after that everything was fine ( battery level 50%).
I did hardware test - passed 100% fine.
But when I did charge till 100% the problem come back.

That's really interesting finding... Can you tell me the same steps you did like which rom you flashed and all of that? I will check it with my dead phone maybe if I will have the same thing like you we can point on something...

mi5 lcd replaced touch not working
I bought a mi5 mobile in singapore. My display was damaged. I changed many display in india (checked in many shop). only work display (lcd). Touch not respose. please some one give solution. thank you

have same problem with op
my phone get damaged by water so im rush turn it off and open everything then go to dry it... and problem with speaker etc doesnt work just like op please help i really doesnt have money to buy new phone this month

Exactly same problem with me, just replaced the rear camera and the problem occurs
No sound, no vibration, nav led not working at all, playing video not working
Even playing sound via bluetooth speaker not working too
I believe there is something wrong with the mainboard
can anyone point out which part of the mainboard responsible for the lower board?
The lower board works well though, I tested it using other mainboard

codearm2 said:
Exactly same problem with me, just replaced the rear camera and the problem occurs
No sound, no vibration, nav led not working at all, playing video not working
Even playing sound via bluetooth speaker not working too
I believe there is something wrong with the mainboard
can anyone point out which part of the mainboard responsible for the lower board?
The lower board works well though, I tested it using other mainboard
Click to expand...
Click to collapse
For me the problem was that after the screen replacement (It may also apply to you after you replaced the rear camera..)
When I put back he main motherboard it wasnt sat properly,I put it beneath a small plastic holder and when I closed everything and screw and all..Problem appeared and when I rechecked motherboard I found out it got bent in the right down side and that's probably what killed all the sensors,sound and everything..
Of course that what happend to me..There is plenty of other reasons that may cause to what you experience..

edoroom said:
For me the problem was that after the screen replacement (It may also apply to you after you replaced the rear camera..)
When I put back he main motherboard it wasnt sat properly,I put it beneath a small plastic holder and when I closed everything and screw and all..Problem appeared and when I rechecked motherboard I found out it got bent in the right down side and that's probably what killed all the sensors,sound and everything..
Of course that what happend to me..There is plenty of other reasons that may cause to what you experience..
Click to expand...
Click to collapse
I believe the chip or something similar, that control the sensor, led, vibration etc, was broken because we put it the wrong way
now we need to find which chip it is and replace it
which part of the right down? near the signal cable?

codearm2 said:
I believe the chip or something similar, that control the sensor, led, vibration etc, was broken because we put it the wrong way
now we need to find which chip it is and replace it
which part of the right down? near the signal cable?
Click to expand...
Click to collapse
If you just checked and saw you put it wrong as I did,On the little plastic which made a little bent then I guess you lost..I would just buy new motherboard on aliexpress or just give up and buy a new phone..
As you cant really know (I mean from our side..) if its a chip related there or if its the bent it self which made problem on the connection on the board it self..
And yes I was speaking about the right side near the signal cable where you need to install the motherboard from that side where there is a little plastic like holding the motherboard..When I did the reinstall by not checking I put the motherboard on that plastic and after I closed everything and all screws got back I discovered that problem..

edoroom said:
If you just checked and saw you put it wrong as I did,On the little plastic which made a little bent then I guess you lost..I would just buy new motherboard on aliexpress or just give up and buy a new phone..
As you cant really know (I mean from our side..) if its a chip related there or if its the bent it self which made problem on the connection on the board it self..
And yes I was speaking about the right side near the signal cable where you need to install the motherboard from that side where there is a little plastic like holding the motherboard..When I did the reinstall by not checking I put the motherboard on that plastic and after I closed everything and all screws got back I discovered that problem..
Click to expand...
Click to collapse
yeah, it means it's the same mistake as mine, that little metal thing that hold the motherboard, I forgot to eject the sim card tray and when I pull my main board it was stuck, got a little bent from there
Just wonder if anyone have the schematic for mi5 mainboard, since I'm curious and want to find a way to repair it
Not because I'm in despair of needing a phone, this MI5 is my secondary phone
Just because of the curiousity, that's all
edi--
found the schematic here
https://data.dendik.id/Data/Schematic/Xiaomi/Mi5_SM.rar
now on the journey to repair this stupid mistake, lol
any help from someone who are an expert in this thing will be really appreaciated

codearm2 said:
yeah, it means it's the same mistake as mine, that little metal thing that hold the motherboard, I forgot to eject the sim card tray and when I pull my main board it was stuck, got a little bent from there
Just wonder if anyone have the schematic for mi5 mainboard, since I'm curious and want to find a way to repair it
Not because I'm in despair of needing a phone, this MI5 is my secondary phone
Just because of the curiousity, that's all
edi--
found the schematic here
https://data.dendik.id/Data/Schematic/Xiaomi/Mi5_SM.rar
now on the journey to repair this stupid mistake, lol
any help from someone who are an expert in this thing will be really appreaciated
Click to expand...
Click to collapse
ok bruh im already do some fking around and do ic audio replacement but no hope its still broke even my repair guy who are ex xiaomi worker are give up the problem is looks like from cpu its self but there was something interesting if u try download device info hw app in google play there was warning that the device cant read sys or something cuz it was blocked and when u look at audio chipset its was gone

feel2death said:
ok bruh im already do some fking around and do ic audio replacement but no hope its still broke even my repair guy who are ex xiaomi worker are give up the problem is looks like from cpu its self but there was something interesting if u try download device info hw app in google play there was warning that the device cant read sys or something cuz it was blocked and when u look at audio chipset its was gone
Click to expand...
Click to collapse
Yeah, tried it before, and the audio chip is gone
Perhaps something wrong with the audio chip, will try to replace the IC tomorrow