I'm having one heck of a problem here. So I've got my Nexus 7, on stock Android, but rooted and unlocked.
I wanted to try Paranoid Android, so I installed the TeamWin Recovery using the Nexus Root Toolkit, then flashed the ROM and wiped cache/dalvik. I tried to boot into the new ROM, but it just stayed on the boot animation. So I looked up the issue, and the solution seemed to be return to stock Android, then flash Paranoid Android again.
So I tried to use the 'Flash Stock and unroot functionality' of the Nexus Root Toolkit, which proceeded fine until the copying of 'system' onto the device... This lasted for about an hour without progress, so I decided to try again with a different version of stock Android. This too didn't work.
So then I (foolishly) rebooted the tablet. But when I got back to fast boot, it didn't show up in Windows (on either of the two machines I have here, and with two cables that have both worked previously, in multiple USB ports). The specific error is that it shows up as an unknown device (which is fine) but also in the device manager there is error 43, which states that the USB has malfunctioned so it has stopped.
For that reason, it's impossible for me to connect it to a computer or even re(install) the proper drivers for it. And as it doesn't have a working OS, i can't get to ADB either. So right now I can't think of anything that will work - no fast boot, no recovery, no connection to a PC.
Any ideas?
Really, no ideas? Come on XDA Developers, you're my only hope <3
Hi there!
ive got the same issue and i can tell what is NOT working to fix this problem:
deleting ALL usb drivers from pc and installing adb drivers, windows troubleshoot and nrt
i'm just like confused but i think it's all windows fault, if i could i would trie on linux or any other pc os
Hey guys any help or suggestions will be greatly appreciated on this matter. I will try to be as detailed as possible but I'm trying to fix this phone for a friend and he isn't very phone savvy. From what I understand, he was previously on CM10 and tried updating to CM11 using the cmupdater. For some reason it failed and he was stuck in TWRP. When he tried to reboot it kept kicking him back to recovery. He took his phone to a phone repair shop who then wiped his device. At this point he gave me the phone to try to fix.
First of all I have working fastboot and adb drivers for my Nexus 5 so I don't think this is a driver issue but I'm no expert on the Nexus 4 so I could be wrong. I'm also running Windows 8.1 if this is any relevance.
I can still access the devices bootloader (ver MAKOZ20i)
I can still access TWRP (ver 2.6.0.0)
When plugging the device into my USB 2.0 ports, nothing shows up in my device manager in bootloader, TWRP, or TWRP ADB sideload.
When plugging the device into my USB 3.0 ports, I see 'Unknown USB Device (Device Descriptor Request Failed)' and the Device Instance Path is 'USB\VID_0000&PID_0002\7&20F39B9B&0&2' in bootloader, TWRP, or TWRP ADB sideload.
I've never heard of a device not being seen at all in by USB 2.0 ports but showing using USB 3.0 ports so I attempted to give extra juice to the phone using a powered USB OTG cable. Still nothing shows up.
I've tried running 'fastboot device' and 'adb devices' with no luck.
I think I've covered all the bases... can anyone think of anything that could help me re-install a new rom or factory reset or his he out of luck?
I think it may be a Win8 problem. You have access to another machine with Win7 or WinXP?
Install "universal driver.exe" in win7, than connect phone while power off, I think it'll install driver...than push any custom ROM to phone via adb or just flash any official IMG..
Well I can tell you WHY it didn't work. That version of TWRP is not able to install 4.4 (CM11). if you manage to successfully push via adb and get it started again, make sure to flash the newest version of TWRP before trying that again.
Thanks for the reply guys. I kind of guessed that the version of TWRP was not compatible as I installed CM11 on my old Nook Tablet and had to update my recovery before installing it. Unfortunately the guys who wiped the phone prevented me from installing an old version of CM10 that my friend probably had from the cmupdater.
As for Windows 8 being the issue.. I attempted to try to use my laptop which runs Windows 7 but was unable to get anything to happen. Since the laptop only had USB 2.0 ports, plugging in the device to any of the ports did the exact same thing as what it did on my desktop (Windows doesn't even recognize anything is connected). I still get the charge animation on the phone but yea... nothing in device manager. I'm thinking of running Linux from a live installation to see if anything different happens, unfortunately its been ages since I've touched Linux so this is kind of a last ditch effort here.
Any other thoughts?
mrlazyone said:
Thanks for the reply guys. I kind of guessed that the version of TWRP was not compatible as I installed CM11 on my old Nook Tablet and had to update my recovery before installing it. Unfortunately the guys who wiped the phone prevented me from installing an old version of CM10 that my friend probably had from the cmupdater.
As for Windows 8 being the issue.. I attempted to try to use my laptop which runs Windows 7 but was unable to get anything to happen. Since the laptop only had USB 2.0 ports, plugging in the device to any of the ports did the exact same thing as what it did on my desktop (Windows doesn't even recognize anything is connected). I still get the charge animation on the phone but yea... nothing in device manager. I'm thinking of running Linux from a live installation to see if anything different happens, unfortunately its been ages since I've touched Linux so this is kind of a last ditch effort here.
Any other thoughts?
Click to expand...
Click to collapse
One more, when you plug into usb 3.0 you can see unknown device Right ??
If yes, download driver files from here Here.
It's a zip contains .inf files, Now click on unknown device and select update drivers then give the path to these drivers manually.
Hope this will help you out.
I'm pretty convinced at this point that the phone can't be fixed by me. Running it through Ubuntu I can't see the device at all (USB 2 & 3) when running the lsusb command but it sees my nexus 5 just fine. I even tried modifying drivers to match vendor id product id and class id as reported by windows. Thanks for the suggestions. Does anyone know of a reputable service to get this phone repaired? How much does a JTAG repair usually cost?
Sent from my Nexus 5 using XDA Premium 4 mobile app
mrlazyone said:
I'm pretty convinced at this point that the phone can't be fixed by me. Running it through Ubuntu I can't see the device at all (USB 2 & 3) when running the lsusb command but it sees my nexus 5 just fine. I even tried modifying drivers to match vendor id product id and class id as reported by windows. Thanks for the suggestions. Does anyone know of a reputable service to get this phone repaired? How much does a JTAG repair usually cost?
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
The following method may still help
http://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060
DrFredPhD said:
The following method may still help
http://forum.xda-developers.com/nexus-4/general/tutorial-how-to-unbrick-n4-t2347060
Click to expand...
Click to collapse
Awesome! Didn't realize this was an option. It didn't work using the USB 3.0 ports but the USB 2.0 actually worked for this method. Thank you!
Hi, background is this..
I have a D802-10C G2 that i rooted the stock 4.2.2 rom a while back using the post chinese method. Easy enough, all worked fine. no complaints. A couple of weeks ago i got offered the OTA 4.4 update, this failed due to the root. I then removed the root using the feature in super su. that seems to have worked as no apps or file managers etc could get root access. However, the OTA still wont work.
Now my problem is my phone will no longer be recognized by any operating system, on multiple computers. I have tried many ADB drivers, Windows 7 wont even detect the device, i've used every PC connect mode, USB debugging. However always the same result, it's as if i'm plugging in a blank usb cable into the computer. Nothing at all.
The only thing that does happen when i connect the phone to a computer is the phone starts to trickle charge. There is nothing detected in Device Manager in Windows 7 I've tried connecting in download mode, nothing. I've tried the LG support tool, PC sync. Nothing.
WiFi does connect to the PC suite fine BTW and other than that the phone is working perfectly. I've also tried connecting multiple usb cables on multiple ports.
I haven't been able to find a single case of the same problem in the week or so i've been looking. Hoping someone can help, i'm thinking i may have soft bricked my phone. I really do not think this is a driver issue.
Any help would be great. cheers
Paul
+1
i have the same problem plz help
cambies said:
Hi, background is this..
I have a D802-10C G2 that i rooted the stock 4.2.2 rom a while back using the post chinese method. Easy enough, all worked fine. no complaints. A couple of weeks ago i got offered the OTA 4.4 update, this failed due to the root. I then removed the root using the feature in super su. that seems to have worked as no apps or file managers etc could get root access. However, the OTA still wont work.
Now my problem is my phone will no longer be recognized by any operating system, on multiple computers. I have tried many ADB drivers, Windows 7 wont even detect the device, i've used every PC connect mode, USB debugging. However always the same result, it's as if i'm plugging in a blank usb cable into the computer. Nothing at all.
The only thing that does happen when i connect the phone to a computer is the phone starts to trickle charge. There is nothing detected in Device Manager in Windows 7 I've tried connecting in download mode, nothing. I've tried the LG support tool, PC sync. Nothing.
WiFi does connect to the PC suite fine BTW and other than that the phone is working perfectly. I've also tried connecting multiple usb cables on multiple ports.
I haven't been able to find a single case of the same problem in the week or so i've been looking. Hoping someone can help, i'm thinking i may have soft bricked my phone. I really do not think this is a driver issue.
Any help would be great. cheers
Paul
Click to expand...
Click to collapse
YOu can try checking the device manager or use other USB port on your phone.
buenarc said:
YOu can try checking the device manager or use other USB port on your phone.
Click to expand...
Click to collapse
The problem is not like the usual ones you will see about "computer not being able to see device" I don't think it's a driver or software issue, or if it is it's unlike any i have found in the weeks i've been searching the net for a solution. Here's why....
When i connect the phone to Windows 7 and 8 ( on 3 different computers) No hardware is detected, nothing in the Device Manager, no yellow question marks indicating 'Unknown Hardware'. Nothing, all it does is start trickle charging.
Now even with no ADB, or any driver at all installed, the computer should still detect the phone. Mine does not.
The same thing happens using OSX and Linux Mint 16 (again multiple computers) No devices or mounted or volumes shown at all. Linux terminal command "$ lsusb" does not list my hardware.
This is why i'm pretty much convinced that there is something wrong with the USB port on the phone. Because, if Linux can't see it then surely it's a hardware problem right?
The only other thing i can think of is, i have messed up the phones firmware while trying to unroot it? but only because the timing of all this is just too uncanny.
I think i'll have to suck it up and admit defeat here. Funny thing is the phone works perfectly and charges fine.
Stuck on 4.2 , with no ADB functionality. Perhaps i'll sell it cheap to someone who doesn't care.
Cheers for the reply mate.
Same problem here!
Only my G2 is not rooted, it is still on factory OS and recently updated to 4.4.2.
I have tried on several computers, different ports and no help.
On the first connection to a PC not connected before windows reports "USB device not recognized" problem.
After that every time I connect the phone to the same computer the phone itself only recognizes that it is using USB charging mode, it does not recognize the computer connection (known by the USB ison on android system tray) even with "Ask upon connection option checked".
Even when I manualy change the Android mode in Settings --> PC Connection from MTP to PTP or even LG software, nothing happens.
Definetly there seems to be a problem with the phone, but I don't beleive it's a software but a firmware problem.
Please help if anyone knows what to do.
same thing happened after installing T-mobile rom thrugh twrp. but my device boots into fastboot and i tryed falshing :
laf.img, boot.img, aboot.img, recovery.img, laf.img
but after reboot my LS980 dissapear from device manager and stucked on LG logo.
Dont know what to do now.
I'm no expert, but given there are a lot of them here and none have weighed in on this with any ideas for a fix, i'm going to assume it's a hardware problem.
Anyone else agree? Hardware problem not software?
Cheers
I guess that you already wiped everything right? Apart from that, i'll suggest you to go to some tech supp and ask them if they can verify that each pin of the micro usb is properly working.
Sorry for my english, hope it helps!
Sent from my LG-D802 using XDA Free mobile app
I will try to check the connector although i dont think that it is a hardware issue.
BTW I can enter the download mode after flashing the mentioned partitions and i can also enter the stock LG recovery but when i do the factory reset it keeps showing Factory reset processing ... for ever
It has happened to me the same thing :crying:, and is a problem with the boot.img, if by chance your G2 version 4.4.2 and the the 4.2.2 boot.img, goodbye.
The only solution is to take it to repair a service official, there will change you the card, with the consequent change of IMEI.quent change of IMEI.
Homero2 said:
It has happened to me the same thing :crying:, and is a problem with the boot.img, if by chance your G2 version 4.4.2 and the the 4.2.2 boot.img, goodbye.
The only solution is to take it to repair a service official, there will change you the card, with the consequent change of IMEI.quent change of IMEI.
Click to expand...
Click to collapse
where are you going to repair your G2?
and how much have you paid the repair?
THANKS
Any fix for this guys i have same problem!
Here I'm getting the yellow !, any suggestion?
Sirs, I flashed the baseband (https://www.androidfilehost.com/?w=files&flid=12880) then it got working back.
solved for me
I have some kinds of that problem, let try:
Settings -> General -> PC Connection -> Select USB connection method -> Media device (MTP) (or whatever)
Got this same issue after flashing cloudy g3 rom. Then later flashing dirty unicorns, which requires jelly bean baseband. But even restoring g3 and 24a baseband, still doesn't work. No pc tethering and no on the go usb. My usb port is basically charge only.
---------- Post added at 03:58 PM ---------- Previous post was at 03:56 PM ----------
Everything else works fine...I actually never even noticed this bc I never tether to pc. But now I have to bc I want flask kdz
Help me please
someone have a solution to this problem?
My Lg G2 D803 still on boot loop (LG logo) and thats all ... no usb connection , reset factory doesnt work ...
HELP PLEASE ...
Thank you
Anyone has an idea how to fix this problem?
same problem
I have a LG G2 . recently updated from vs98027a to vs98039a 5.0 lollipop. Since the update my computer won't recognize my device in download mode and I don't have superuser ppermissions. Help plz
I also have the same problem.
It happened when I tried to backup info through LG PC Suite: the phone disconnected during the process, and now it's not recognized by any PC (http://forum.xda-developers.com/lg-g2/help/lg-g2-recognized-windows-backup-t3155323).
Also found a description of the same problem here: https://www.reddit.com/r/lgg2/comments/2urpnw/lg_g2_usb_only_charging_not_recognized_by_pc/ - no solutions, too.
Did anyone manage to fix this?
Hi everyone,
I've always been able to find what I needed on my own. Until now.
I tried to reflash CM7 using ROM Manager and apparently it hosed the Clockwork Recovery. Some searching revealed that this is not new.
However, the fix is to reflash CWM using Fastboot. While I can still get to the bootloader on the device, the SDK Fastboot doesn't see the device (<waiting for device>).
The Drivers are installed, I have a second MT3g that detects just fine.
When the bad device is connected to the PC I get a Windows "Device Not Recognized" error. With the USB driver working for the other device, what's going on?
All those views and no replies?
Anything?
Bump
SOLVED!
Hello All.. I have searching for hours not making much progress. Last night my LG G2 ran out of battery and I plugged it into the car charger and it soft bricked. I've been pretty busy lately so I'm on an old ROM Optimus DE 2.2. I don't have the ROM saved and I've been trying to ADB sideload the ROM back onto my phone but in the command prompt it says device not found. I tried installing some generic drivers and that didn't work. I tried the LGUnitedMobileDriver and that isn't working either.
I'm not sure what to do next. I have ADB on my computer and ADB sideload on my TWRP recovery, so I would like to push the ROM on my phone so I can flash it without having to wipe my phone. What drivers do I need; right now my phone shows up under other devices in device manager. Or am I sideloading wrong? Any help please lol..
I was caught off guard because of the random soft brick. If I would have been working on my phone I would have had the proper backups made. Thanks for any help, it is much needed I need my phone back ASAP!! Thanks again.
SOLVED
Finally figured it out. I had to updated my device (LG G2) with the ADB drivers not the LG drivers.
I went into Device Manager, right clicked my phone, clicked update driver software, clicked browse my computer, clicked let me pick from a list of drivers, then selected ADB drivers, then selected HTC Dream Composite ADB Interface. I believe the drivers I last installed were Snoop05's adb-setup-1.4.2.
Then I did a backup in TWRP, then I sideloaded the ROM. Next I had to wipe everything but internal memory and the use Nandroid Manager to restore my data from the backup... Took my whole day but at least I have a phone again.
The car charger soft bricked it ?
So you have TWRP, the drivers you can get from the LG site too. Just search for your model and go to software update section. This is for D802, i dont know if the drivers are the same: http://www.lg.com/uk/support-mobile/lg-D802
Hmm..i dont know how to use the sideload..
Another way can be with USB flash drive and OTG cable, i used my usb flash drive with OTG cable to flash ROMs from TWRP
Last option is lg flash tool and then reroot
Thanks for your help guys.. I appreciate it! Looks like I just needed to update my phone with the ADB drivers in Windows 8 Device Manager. I'm back up and running.
But yea so weird.. I haven't flashed anything on this phone in months so I guess something was corrupted when it died. I think it was trying to boot with too low of a charge and the battery died mid boot which corrupted something.
Although you've solved it let me recommend you another way.
Use : "adb push romname.zip /sdcard/romname.zip"
instead of "adb sideload romname.zip"