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[Q] Droid Razr Screen Cracked and Unusable, Need To Retrieve Information

Hello All,
Happy to say this is my first time posting on this forum, and here's my issue:
A few weeks ago my Motorola Droid Razr was stepped on and the screen was cracked. It worked for a few days after it happened but it finally decided to completely stop working. The actual display is cracked underneath the glass, so I'm pretty sure it is also not responsive to touches either. I have many pictures on it (on the internal memory) that I am hoping to recover, but I haven't been able to figure out how. When I plug it into my laptop (Windows 7 but also have access to Mac with 10.5 Leopard), three devices show up in My Computer: 'CD Drive (G) MotoCast' and two Removable Disks (H and I). When I click on either of the two Removable Disks, I get the message "Please insert a disk into Removable Disk (x)" I'm not quite sure what exactly this means for my chances of recovering the data, but if anyone could steer me in the right direction on how I might go about recovering the pictures and such it would be great

Are there any Software from Motorola that you coud download to your PC so you could ask it to sync all your data from your phone? Could be worth checking out their website or even sending them an e-mail!
EDIT: I haven't tried it myself, but I've read on the web that www.moborobo.com might have what you need. Could be with checking this out. Now I am in no way advertising for them, I don't know anything about these developers, I'm only tying to help if there's anything that can be done. Hope this help!
Sent from my LG-P700 using xda app-developers app

Pupsterface said:
Are there any Software from Motorola that you coud download to your PC so you could ask it to sync all your data from your phone? Could be worth checking out their website or even sending them an e-mail!
Sent from my LG-P700 using xda app-developers app
Click to expand...
Click to collapse
Thanks for your reply, Yes I should sent them an email just to see what they say about it. The only thing I'm worried about is if any software will detect the device as an actual phone; only wondering this because it tells me to insert a disk whenever I try to click on either of them, and it's showing up as disk rather than a device (still doesn't allow me to open them up).

Just had a thought; when I transfer files from my laptop to my cellphone, for like 10-15 seconds after plugging it to my laptop it shows up as a CD, but after waiting a little while it changes to external device and it works as it should... Have you tried waiting a few minutes after plugging your cellphone to see if it changes? Figured it didn't hurt to ask
Sent from my LG-P700 using xda app-developers app

Have you tried to do it via ADB? If you have enabled usb debugging before, you could try this.
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Sent using the amazing SwiftKey 4 with flow!

Pupsterface said:
Just had a thought; when I transfer files from my laptop to my cellphone, for like 10-15 seconds after plugging it to my laptop it shows up as a CD, but after waiting a little while it changes to external device and it works as it should... Have you tried waiting a few minutes after plugging your cellphone to see if it changes? Figured it didn't hurt to ask
Sent from my LG-P700 using xda app-developers app
Click to expand...
Click to collapse
Yes Pupsterface unfortunately I have tried before I've left it plugged in for long periods of time but they all show up at once and all stay there permanently. Thank you though I appreciate it

Lifehacker7 said:
Have you tried to do it via ADB? If you have enabled usb debugging before, you could try this.
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Sent using the amazing SwiftKey 4 with flow!
Click to expand...
Click to collapse
You know I've read about ADB, how would I get it and use it for this purpose?

cmarkus123 said:
You know I've read about ADB, how would I get it and use it for this purpose?
Click to expand...
Click to collapse
Read this
You could also search on youtube, for more clear instructions.
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Sent using the amazing SwiftKey 4 with flow!

I would try using a cord to display your phone onto your television and from there backup the files via the internet. Hope this helps!
Sent from my DROID RAZR MAXX HD using xda app-developers app

Similar Problem
Hey everyone, I have essentially the same problem. My phone is neither rooted nor is debugging mode on, I have a lock on the screen and the screen is completely unusable, cracked on multiple levels. I have not used a bootloader on it yet, because I don't want to void the warranty. I have received my replacement phone through the warranty, but I want to recover the files from my phone's internal memory before I ship it back to the warranty company.
I have not tried a micro HDMI cable because I don't have one, and because the screen is broken on both layers I figured it wouldn't do much good. If anyone insists, though, I'd be willing to give it a try. I'm fairly tech-savvy, so I'm open to any recommendations, no matter how complex. In particular, I'm talking about breaking into the phone through my computer rather than physically taking my phone apart (which I have neither the experience or tools to do). Anything helps, thank you!

monkeyfrenzy said:
Hey everyone, I have essentially the same problem. My phone is neither rooted nor is debugging mode on, I have a lock on the screen and the screen is completely unusable, cracked on multiple levels. I have not used a bootloader on it yet, because I don't want to void the warranty. I have received my replacement phone through the warranty, but I want to recover the files from my phone's internal memory before I ship it back to the warranty company.
I have not tried a micro HDMI cable because I don't have one, and because the screen is broken on both layers I figured it wouldn't do much good. If anyone insists, though, I'd be willing to give it a try. I'm fairly tech-savvy, so I'm open to any recommendations, no matter how complex. In particular, I'm talking about breaking into the phone through my computer rather than physically taking my phone apart (which I have neither the experience or tools to do). Anything helps, thank you!
Click to expand...
Click to collapse
Go buy a micro hdmi cable. Having a broken screen shouldn't affect your micro-hdmi port at all.

monkeyfrenzy said:
Hey everyone, I have essentially the same problem. My phone is neither rooted nor is debugging mode on, I have a lock on the screen and the screen is completely unusable, cracked on multiple levels. I have not used a bootloader on it yet, because I don't want to void the warranty. I have received my replacement phone through the warranty, but I want to recover the files from my phone's internal memory before I ship it back to the warranty company.
I have not tried a micro HDMI cable because I don't have one, and because the screen is broken on both layers I figured it wouldn't do much good. If anyone insists, though, I'd be willing to give it a try. I'm fairly tech-savvy, so I'm open to any recommendations, no matter how complex. In particular, I'm talking about breaking into the phone through my computer rather than physically taking my phone apart (which I have neither the experience or tools to do). Anything helps, thank you!
Click to expand...
Click to collapse
Go buy a micro hdmi cable. Having a broken screen shouldn't affect your micro-hdmi port at all. But then again if you can't even use your touch screen you may just have to forget about it unless droid has a recovery tool.

obscuresword said:
Go buy a micro hdmi cable. Having a broken screen shouldn't affect your micro-hdmi port at all. But then again if you can't even use your touch screen you may just have to forget about it unless droid has a recovery tool.
Click to expand...
Click to collapse
Thanks, I went to a Best Buy where they hooked it up to a screen and unfortunately the digitizer is completely out of commission. Do you think it would be possible to just copy the encrypted hard drive? Theoretically, if I opened the replacement to rooting and changed the name of the top folder and copied in that of the encrypted hard drive, it would boot from the encrypted one, allowing me to collect all my files. Is that possible/do you know of any programs that would allow me to do that?

monkeyfrenzy said:
Thanks, I went to a Best Buy where they hooked it up to a screen and unfortunately the digitizer is completely out of commission. Do you think it would be possible to just copy the encrypted hard drive? Theoretically, if I opened the replacement to rooting and changed the name of the top folder and copied in that of the encrypted hard drive, it would boot from the encrypted one, allowing me to collect all my files. Is that possible/do you know of any programs that would allow me to do that?
Click to expand...
Click to collapse
Yea after I wrote that I realized what you meant by the screen was cracked on 2 levels and was like dang it lol. Unfortunately I honestly have no idea about that so sorry.

LCD Broken, Need to issue commands to device to access internal memory GN2

Hey guys. SO, I recently dropped my Note II. The screen shattered, but was entirely responsive to touch input and functioned normally (besides shards of glass splintering into my fingers heh) I kept telling myself I would get it fixed "soon" and before I did, it dropped again. This time the screen was not displaying properly and no longer responded to touch except on the notification bar. I pulled the battery and restarted the phone. The screen is no longer lighting up or displaying anything but the phone still boots up as I can hear the startup sounds and flood of incoming text messages.
I previously rooted my phone, left the stock rom on....
Now my intent is to adb into the phone via laptop and usb. and making a "clockwork recovery style image" and then hopefully use an emulator to run the image to extract my data from it. Looking for any guidance or suggestions to get my data back from the device.
If not possible even a backup on the internal drive would be wonderful. Would I be able to make an image of this device and then flash it onto another note 2 to access my saved information?

xFilthyxJesusx said:
Hey guys. SO, I recently dropped my Note II. The screen shattered, but was entirely responsive to touch input and functioned normally (besides shards of glass splintering into my fingers heh) I kept telling myself I would get it fixed "soon" and before I did, it dropped again. This time the screen was not displaying properly and no longer responded to touch except on the notification bar. I pulled the battery and restarted the phone. The screen is no longer lighting up or displaying anything but the phone still boots up as I can hear the startup sounds and flood of incoming text messages.
I previously rooted my phone, left the stock rom on....
Now my intent is to adb into the phone via laptop and USB. and making a "clockwork recovery style image" and then hopefully use an emulator to run the image to extract my data from it. Looking for any guidance or suggestions to get my data back from the device.
If not possible even a backup on the internal drive would be wonderful. Would I be able to make an image of this device and then flash it onto another note 2 to access my saved information?
Click to expand...
Click to collapse
looks like you broke your digitizer (second time you dropped it), you could just replace the entire lcd and screen instead of a new note, not too hard just be careful you don't break anything in it, that can be big bill thought. did a quick search and on eBay looks around $190 and up... which is redonkulous. i think you could cook your own ROM and get all your data back by doing a adb/system/pull if you wanted a new note 2.

Trozzul said:
looks like you broke your digitizer (second time you dropped it), you could just replace the entire lcd and screen instead of a new note, not too hard just be careful you don't break anything in it, that can be big bill thought. did a quick search and on eBay looks around $190 and up... which is redonkulous. i think you could cook your own ROM and get all your data back by doing a adb/system/pull if you wanted a new note 2.
Click to expand...
Click to collapse
Yes I wanted to replace the broken digitized rather than buy a second note. I was going to use a friends Note II, if I can pull all of the data off. You say adb/system/pull, or do you mean pull the system folder using adb? If you are aware of one would you link me a guide on adb? It's been some while since using the commands. Thank you for your reply.

xFilthyxJesusx said:
Yes I wanted to replace the broken digitized rather than buy a second note. I was going to use a friends Note II, if I can pull all of the data off. You say adb/system/pull, or do you mean pull the system folder using adb? If you are aware of one would you link me a guide on adb? It's been some while since using the commands. Thank you for your reply.
Click to expand...
Click to collapse
its been awful while since i used adb i wouldn't remember i would try to look it up .

[Q] White screen of death?

Has anyone encountered the following issues with their SHIELD?
Mine was working just fine after updating to 4.3 and rooting with CWM. I performed multiple reboots in this configuration, played games, etc. - everything was fine.
I had a pretty busy weekend so didn't touch the SHIELD at all for a few days. When I got back:
When I opened it up, I saw the screen backlight turn on but nothing displayed on the screen. The SHIELD button was glowing green.
I long-pressed the SHIELD button to turn off the device. When I turn it back on, I get a white screen that is dark around the edges (mostly vignetting around the corners). The brightness of the screen here and degree of vignetting seem to change every time I try and turn on the device.
If I enter fastboot mode via the key combo, the same thing happens - white vignetted screen. The device DOES appear to enumerate as a fastboot device on my PC in this configuration.
At one point I figured it might be due to a low battery, so plugged it into the charger. 30 minutes later, when I opened the lid, I actually came up to a launcher screen with 65% battery.
However, after closing the lid and reopening it again - black screen again, with the "white vignette of death" coming back if I reboot.
Has anyone else seen similar behavior? Searching results in no one complaining about a white screen like this, at least not on this device.

Screen of Death
This just happened to me today. Did you find a fix for this problem?
Entropy512 said:
Has anyone encountered the following issues with their SHIELD?
Mine was working just fine after updating to 4.3 and rooting with CWM. I performed multiple reboots in this configuration, played games, etc. - everything was fine.
I had a pretty busy weekend so didn't touch the SHIELD at all for a few days. When I got back:
When I opened it up, I saw the screen backlight turn on but nothing displayed on the screen. The SHIELD button was glowing green.
I long-pressed the SHIELD button to turn off the device. When I turn it back on, I get a white screen that is dark around the edges (mostly vignetting around the corners). The brightness of the screen here and degree of vignetting seem to change every time I try and turn on the device.
If I enter fastboot mode via the key combo, the same thing happens - white vignetted screen. The device DOES appear to enumerate as a fastboot device on my PC in this configuration.
At one point I figured it might be due to a low battery, so plugged it into the charger. 30 minutes later, when I opened the lid, I actually came up to a launcher screen with 65% battery.
However, after closing the lid and reopening it again - black screen again, with the "white vignette of death" coming back if I reboot.
Has anyone else seen similar behavior? Searching results in no one complaining about a white screen like this, at least not on this device.
Click to expand...
Click to collapse

Might be just bad luck for me.....
nmerc001 said:
This just happened to me today. Did you find a fix for this problem?
Click to expand...
Click to collapse
So ive already gotten two shields and they both got the same effect. my guess is the ribbon cable when you open and close the screen, is wearing off? because when i open my shield in a certain way, it works... when i open it at around 100 degrees or open correctly then tilt it forward, the screen tears and slowly shows the white screen. I do admit that i open and close the screen more than i should, but i do it carefully. Ill look over at the ifixit site to see how the cable is connected to the board.

This is what has me worried about buying a shield, the ribbon cable, did you confirmed this was the problem?

DJNinja1625 said:
So ive already gotten two shields and they both got the same effect. my guess is the ribbon cable when you open and close the screen, is wearing off? because when i open my shield in a certain way, it works... when i open it at around 100 degrees or open correctly then tilt it forward, the screen tears and slowly shows the white screen. I do admit that i open and close the screen more than i should, but i do it carefully. Ill look over at the ifixit site to see how the cable is connected to the board.
Click to expand...
Click to collapse
I am a tech by trade and bought one of ebay for 40 bucks cuz it would not power up so the guy claimed. After getting it I found the issue was actually the display was not coming on and once it did. Then went out in a few moments. Connect it to HDMI and the unit runs all day of you want to be cabled. ]
So I tore it down and found that the issue is the flex cable. The problem is that the flex cable is part of the LCD and you cannot just replace the cable. Also since the unit is so new there are no sources as of yet to by the LCD from.
So if you have this issue I suggest just holding out till a source of LCD's at hopefully a reasonable price become available.

So it's soldered to the screen and not replacable right?

nex86 said:
So it's soldered to the screen and not replacable right?
Click to expand...
Click to collapse
That is correct.. The flex cable is actually an integral part of the display and even has much of the driver circuitry placed right on it at the LCD. In the business we call it a flex circuit since it is a flexible circuit board and not just a cable.

I pretty much know what you mean.
On my old Archos Gamepad I ripped the flex that connected the left side of the controler to the logic board by accident.
It was a pain in the ass to fix it by soldering seperate wires, I guess it's impossible to do this with the display connection in the Shield.

nex86 said:
I pretty much know what you mean.
On my old Archos Gamepad I ripped the flex that connected the left side of the controler to the logic board by accident.
It was a pain in the ass to fix it by soldering seperate wires, I guess it's impossible to do this with the display connection in the Shield.
Click to expand...
Click to collapse
Might be possible if you used 32 gauge magnet wire. It is enamel coated so it won't short, but it to will break over time.

hi, flash factory image
Sent from my LT25i using XDA Free mobile app

dragxdk said:
hi, flash factory image
Sent from my LT25i using XDA Free mobile app
Click to expand...
Click to collapse
How are you supposed to flash a factory image when the screen won't let you see what you are doing? When you are in the bootloader screen the HDMI drivers are not loaded yet so not even hooking it to an external monitor will work. You might want to fully read and understand the problem next time before offering advice.:good:

fastboot tells you if you were sucessful or not.
just for relocking the bootloader you have to do some button combinations, you can look up some tutorial videos to see what you have to press.

nex86 said:
fastboot tells you if you were sucessful or not.
just for relocking the bootloader you have to do some button combinations, you can look up some tutorial videos to see what you have to press.
Click to expand...
Click to collapse
Even still, it is not a software problem that causes this. I know because if I move my display to a certain angle it will start to work sometimes. A software issue would not cause this. I also have taken my apart since I am a tech and can actually see the traces in the flex cable that have broken..
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.

Solarenemy68 said:
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.
Click to expand...
Click to collapse
I agree, they used flex in the Nintendo DS and 3Ds as well, but they don't break that fast.
I find it still better if they have used recular cables like what they use for Laptops.

Solarenemy68 said:
Even still, it is not a software problem that causes this. I know because if I move my display to a certain angle it will start to work sometimes. A software issue would not cause this. I also have taken my apart since I am a tech and can actually see the traces in the flex cable that have broken..
Any device with a folding display is a bad idea and a failure waiting to happen. Flex cables have a limited number of flex cycles that is even usually published. So the idea of using them in a device that may get heavy use is just dumb.
Click to expand...
Click to collapse
What you are saying is the EXACT same thing that happened to my SHIELD. I can tell its a hardware problem because when I tilted my screen it would work, and sometimes it wouldn't. Now my SHIELD's display does not even show any signs of picture. HDMI still works, however. Like one of the previous posts said, there is not a screen available for purchase, so my next step is NVIDIA customer support. Maybe if they would sell these screens, I wouldn't even have to have a warranty claim. sigh.

White screen of death?
yes mine too same as
i tried connecting my via HDMI from power cable to large HDMI to plug it works fine on my galaxy tab
thought id be clever try it on nvidia shield never worked sould of bought mini HDMI so now White screen of death
i cant get into recovery or anything i had this on charge for 12 hrs yesterday still no green button on charge only orange .. i too cant find anything on internet to help with this White screen of death situation

Solarenemy68 said:
How are you supposed to flash a factory image when the screen won't let you see what you are doing? When you are in the bootloader screen the HDMI drivers are not loaded yet so not even hooking it to an external monitor will work. You might want to fully read and understand the problem next time before offering advice.:good:
Click to expand...
Click to collapse
This. I'm having a similar issue. My wife's SHIELD has an unresponsive touch screen. So I tried to flash the factory image (It was never rooted to begin with) and I got the white screen issue when in the bootloader screen. I have to keep restarting it to get the screen to show up as normal when the device boots to the home screen. But the bootloader screen is still blank and white. I was able to watch a video and mimick the steps to flash the factory image but that did not fix the issue. It's definitely a hardware issue. I live in Cincinnati OH, anywhere I can go to have this fixed? I have a portable myself and i know this is going to happen to mine soon.

[Q] Arrrggh - The unit powers on but the screen $&[email protected]#! won't turn on .

Phone was at about 70 % plugged in at the time.
I went to check on something and the screen wouldn't turn on. It vibrates when I hold down the power buttons.
Initially I thought it was corrupted somehow so I flashed it using adb, fastboot command. I think I've flashed it properly . I even did it again for the heck of it using wugfresh. I can see it on the PC as Nexus 5.
Now I realize that it's probably the screen. It was dropped in water a few months ago but it's been okay since I replaced the battery. I pull the battery and plugged it in, there was no white battery charging indicator.
Any suggestions ?
Thanks.

Disassemble phone to check morherboard and screen for corrosion. Try to clean the connection points if possible. Depending on the problem you may have to buy a new screen or motherboard or both.

Can you see the internal storage through your computer and manipulate files and whatnot?
One thing you can try that isn't intrusive is to try a Slimport adapter and seeing if you can get the screen to show on a TV/monitor. If you can, that pretty much confirms it's the screen, and you can proceed to do what the above post suggests.

bitdomo said:
Disassemble phone to check morherboard and screen for corrosion. Try to clean the connection points if possible. Depending on the problem you may have to buy a new screen or motherboard or both.
Click to expand...
Click to collapse
I took it apart and noticed a tiny bit of corrosion through the magnifying glass and cleaned as best as I could.
Johmama said:
Can you see the internal storage through your computer and manipulate files and whatnot?
One thing you can try that isn't intrusive is to try a Slimport adapter and seeing if you can get the screen to show on a TV/monitor. If you can, that pretty much confirms it's the screen, and you can proceed to do what the above post suggests.
Click to expand...
Click to collapse
I can see the internal storage. There's nothing on it because I did a stock re-install but I can see all the folders.
The Slimport adapter is a good idea to confirm if it's a screen issue. I'll look into it to see if it works just by plugging it in . If so, I'll grab one off e-flea.

PC doesn't recognize the phone at all

I've bought used Nexus 5 in great condition with discount with only one issue-it can not be connected to PC.
Let me explain more detailed: I connect the device to PC and I see it started charging and that is all. No windows' 'device connected' sound, no Android's 'Chose connection mode' dialog. No new device in device manager.
This is not another 'help to install drivers' thread :laugh:.
I assume it is hardware issue. I disassembled the phone and checked by multimeter data data paths(I hope I translated this correctly) on pcb where micro usb is installed. They are looks good until they comes to some chip. After it I can't track them.
I also tried to boot the phone in recovery and connect it to PC. Nothing changes, It is still invisible for pc like it is not connected at all.
I have tried that on 4 different PCs, 3 cables, windows and ubuntu :laugh:
So, could someone plese suggest me what it could be? Can this be used to try to fix the issue?

Did you check in device manager on the PC?
Sent from my Nexus 5 using XDA Free mobile app

Atomix86 said:
Did you check in device manager on the PC?
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Sure I did. I wrote
I connect the device to PC and I see it started charging and that is all. No windows' 'device connected' sound, no Android's 'Chose connection mode' dialog. No new device in device manager.
Click to expand...
Click to collapse
I found the thread about the similar issue with nexus 7 but whole thread gone to 'right click-removedrivers-enjoy'...but I have nothing to rightclicking on:laugh:

I have a very similar issue. It used to work but suddenly stopped recognizing on W8.1. Works for W7 so not too bad for me as i can multiboot.
So, when i plug in my phone this is what i get..
Then i right click and select "Update Driver Software..."
And get this result.....
I right click and click "uninstall".......
Plug the Phone back in and it begins Downloading the drivers.....
Then back to square 1....
Sorry for bad images.

*boy*racer* said:
I have a very similar issue. It used to work but suddenly stopped recognizing on W8.1. Works for W7 so not too bad for me as i can multiboot.
So, when i plug in my phone this is what i get..
Then i right click and select "Update Driver Software..."
And get this result.....
I right click and click "uninstall".......
Plug the Phone back in and it begins Downloading the drivers.....
Then back to square 1....
Sorry for bad images.
Click to expand...
Click to collapse
Your issue is driver related and doesn't looks like mine. You just need to install drivers properly. I would be happy if I had this issue in my case:laugh::laugh:

What about windows event logs? Does any new event get created when connecting?
Sent from my Nexus 5 using Tapatalk

How are you testing with a multi-meter? Are you getting voltage from pins 1 and 4? Sounds like a bad USB port.

rootSU said:
What about windows event logs? Does any new event get created when connecting?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I didn't checked windows events log since my experience told me that in any case device manager should show something, like "Unknown device", "Nexus 5", "ADB interface" or something else but it didn't, so that's why I didn't checked logs. I will check just to verify.
theesotericone said:
How are you testing with a multi-meter? Are you getting voltage from pins 1 and 4? Sounds like a bad USB port.
Click to expand...
Click to collapse
I connected USB cable to disassembled module(this is it) and go through data pins on pcb(actually it is not pcb but I do not know what it is).
One multi-meter wite I attached to "data-" terminal(pin 2 here) and another wire I checked pata path on pcb. Then I attached first multi-meter wire to "data+" and checked its path. All looks OK until thse paths meets micro chip with 4 pints. I think 2 in and 2 out. Paths connected to "in" pins and I can not check If signal goes through that chip since multimeter doestn signals. I suppose that this micro chip is damaged or smth like this, but I'm not sure. Another opinion that USB controller is dead, but I'm not sure if it is possible since I think USB controller is integrated into SoC.
nother assumption that data paths are damaged after they go out from micro-chip I wrote above. There are a lot of resistors, capacitors and other stuff there, so something could be potentially broken.
Firstly I thought micro-usb has been desoldered from pcb due to some damage or anything, but it is ok and signal goes through it.
Are you getting voltage from pins 1 and 4?
Yep, sure. My phone amazingly charges from PC and wall charger.
The sad thing is that the phone is not even rooted. So I cant use terminal to check if it see USB controller device...
P.S. sorry for my horrible english, I hope you can understand that I wrote=)

For root you could try an apk like towel root (or others).
Sorry, can't really help you with the detection problem, I have no idea what is going on there.

Slayer_b said:
device manager should show something, like "Unknown device", "Nexus 5", "ADB interface" or something else
Click to expand...
Click to collapse
There should be events before something shows up in device manager. If there's no events, its hardware
Sent from my Nexus 5 using Tapatalk

wangdaning said:
For root you could try an apk like towel root (or others).
Sorry, can't really help you with the detection problem, I have no idea what is going on there.
Click to expand...
Click to collapse
Is it OK to use it with 4.4.4? I can easily root with cable? but withoutit it is little bit risky for me

There is some discussion about it in the stickies in general. Go to the roll up sticky (by rootSU) and then look at the thread about unlocking rooting etc. Search for towel root and there are several posts about it. If you can't connect to your pc it is really your only option to root the phone.

Anyway I'm going to take it to service center, it will cosn about $30 as they say by phone. I'll let you now what was wrong with the phone.