Develop Bugs

USB error, cant do nothing with it

This is a strange problem, I cant tell when it started but it did all of a sudden. When I try to connect my phone to my computer it all of a sudden does not recognize the device (it shows under USB in device manager as unknown device). This happens on my laptop and stationary one (XP and Windows Home Server). On my work computer and my girlfriends laptop (Windows vista) nothing happens at all. The only thing happens is my phone shows notification about HTC Sync (doesnt show the "mount SD card" option). I cant install modaco 2.x since it says it isnt signed when I try to run update.zip from "home+power" mode.
Anyone knows a solution? I really want to flash either modaco or the official HTC rom.

latiszm said:
This is a strange problem, I cant tell when it started but it did all of a sudden. When I try to connect my phone to my computer it all of a sudden does not recognize the device (it shows under USB in device manager as unknown device). This happens on my laptop and stationary one (XP and Windows Home Server). On my work computer and my girlfriends laptop (Windows vista) nothing happens at all. The only thing happens is my phone shows notification about HTC Sync (doesnt show the "mount SD card" option). I cant install modaco 2.x since it says it isnt signed when I try to run update.zip from "home+power" mode.
Anyone knows a solution? I really want to flash either modaco or the official HTC rom.
Click to expand...
Click to collapse
have you instaled HTC Sync + the Android SDK? Drivers are included, also ensure you have gone to settings > Application Settings > Development.. and selected USB Debugging in the handset
if you have done the above you should be able to...
Sync your device
Do a nandroid backup
Root your device
and flash, flash, flash
hope this helps

Thing is, all those stuff is checked. The strangest thing is that the phone doesnt even ask me if I want to mount the SD card (to make the phone like a card reader). I successfully flashed the generic rom again (so my phone is not rooted etc etc) but it still cant connect to any computer through USB (except from when in bootloader (back+power). Its really starting to bugging me since I cant transfer music to the phone anymore I tried a hard-reset, flashed a generic rom (the new one) and formatted the SD card (the phone can read and write to/from it without problems).

I've got the same problem for quite some time now and still no answers...! :-(
It seems very few people on these boards know of our exact problem and i've never seen a solution. Also not from the many people on these boards I consider guru's. :-(
I'm at a total loss here...

I will call HTC Sweden today and see if they can help me solve this issue. I will get back to this thread as soon as Ive been speaking to them. This is starting to really bugging me.

First of all, I would try reformatting your SD card on the phone itself via Menu-> SD card & Phone Storage. If you need anything on the card, you'll have to stick the SD card in adaptor and attach it to your PC directly.
Secondly, by the sounds of it you haven't flashed Cyanogens recovery image, or your HBOOT is wrong, if you are getting a problem with the signature on Modacos image. Either flash Cyanogen recovery, or follow the instructions found on another thread for restoring your HBOOT to an earlier version.
Regards,
Dave

foxmeister said:
First of all, I would try reformatting your SD card on the phone itself via Menu-> SD card & Phone Storage. If you need anything on the card, you'll have to stick the SD card in adaptor and attach it to your PC directly.
Secondly, by the sounds of it you haven't flashed Cyanogens recovery image, or your HBOOT is wrong, if you are getting a problem with the signature on Modacos image. Either flash Cyanogen recovery, or follow the instructions found on another thread for restoring your HBOOT to an earlier version.
Regards,
Dave
Click to expand...
Click to collapse
I have tried to format the SD card already, didnt help.
What would the hboot have to do with the SD card mounting? I got the original hboot .0004 or somehting like that (never touched it).

This is the complete infor from my HBOOT screen (power+back).
HERO CVT SHIP S-ON
HBOOT-1.76.0004 (HERO10000)
MICROP-010f
TOUCH PANEL-SYN0104
RADIO-6.35.06.18
Jul 3 2009,15:22:21
Should I update something? And how would that help me get USB connection to work outside fastboot? Since its only working in fastboot and not in the android system itself?

Answer from HTC:
If you are getting the 'USB Device not recognized' error in XP, then your device has a faulty USB port. You need to call our repair line to gte it booked in for repair. That really is all there is, once the hardware dies and starts giving that error, there generally is no hope apart from replacing the USB socket or the whole motherboard. best regards, HTC Europe Support
Would have been nice if they could include in this message where I should turn etc?

I had the same error when I flashed my unit with wrong radio image (newer version) without flashing system and boot images. Then I reflashed those as well and everything worked ok.

frcko said:
I had the same error when I flashed my unit with wrong radio image (newer version) without flashing system and boot images. Then I reflashed those as well and everything worked ok.
Click to expand...
Click to collapse
Is there any update.zip containing all those updates? and would it void my warranty? ex, would HTC be able to see any difference to the hboot etc?
Any guide you could point me to on how to update all those things?

See the following threads with people who have the same problems:
http://forum.xda-developers.com/showthread.php?t=556335
http://forum.xda-developers.com/showthread.php?p=4550938
I see more and more people with this problem!

help! tried to root - now on a screen with red triangle!

I've head of this coming up, i just did step 1 of pauls root method, i clicked recovery and now a red triangle has appeared.
What do I do to get back to normal??

Battery out

samac92 said:
I've head of this coming up, i just did step 1 of pauls root method, i clicked recovery and now a red triangle has appeared.
What do I do to get back to normal??
Click to expand...
Click to collapse
If you want to root it's normal.

but then i moved on to step 2 and in cmd it says "device not found"
what shall i do?

samac92 said:
but then i moved on to step 2 and in cmd it says "device not found"
what shall i do?
Click to expand...
Click to collapse
Try to read this:
http://translate.google.es/translat...iawiki/index.php/C%C3%B3mo_rootear_HTC_Desire

That doesn't help :/
shall i pull the battery out?
try step 1 again? or step 2?

read the whole thread about rooting over at modaco

its 100 pages??
ive done a search and can't find anything!

Do you have HTC Sync installed? I think you have a driver issue there. Also try unplugging the usb lead and trying another port on your pc. If all else fails, the red triangle is a safe place to just remove the battery and start again.

Firstly you should install HTC Sync on your PC and ensure that you have USB drivers loaded for your android device. The correct drivers should be in the C:\Program Files\HTC\HTC Driver\Driver Files\Win7_x86 folder.
Once that is established, remove and reinsert the USB cable a few times to make sure the driver is loaded and active. Then run the recovery-windows.bat from the cmd box.
then you will get the screen on your phone, using the optical trackpad select wipe, then flash from SD card. Then you are good to go.
I did this yesterday and ran into the same issues as you.
BTW I base this on using Windows 7 32bit.

socktug said:
Do you have HTC Sync installed? I think you have a driver issue there. Also try unplugging the usb lead and trying another port on your pc. If all else fails, the red triangle is a safe place to just remove the battery and start again.
Click to expand...
Click to collapse
thanks a lot mate, i pulled the battery out and im back to normal.
yeh i think its a htc sync issue too. I have htc sync installed, but after i did step 1 (or 2 i cant remember) the computer came up with the install new hardware wizard

Better doing it via the TinyCore linux method - Windows method doesn't work properly (for me anyway). Recovery in Windows is fine, though

samac92 said:
thanks a lot mate, i pulled the battery out and im back to normal.
yeh i think its a htc sync issue too. I have htc sync installed, but after i did step 1 (or 2 i cant remember) the computer came up with the install new hardware wizard
Click to expand...
Click to collapse
If you know how to burn a cd you could go over to modaco and there is a thread by craigcrawford about rooting using the r3 method.. basically if you follow that you will have linux running from the disc and all the files needed are on it also. I've never used linux before and found it really easy. That way you won't run into any driver issues.
Just be careful, take your time and always remember that there are now over 60 confirmed handsets that are usb bricked!
Good luck

pmcguire said:
Firstly you should install HTC Sync on your PC and ensure that you have USB drivers loaded for your android device. The correct drivers should be in the C:\Program Files\HTC\HTC Driver\Driver Files\Win7_x86 folder.
Once that is established, remove and reinsert the USB cable a few times to make sure the driver is loaded and active. Then run the recovery-windows.bat from the cmd box.
then you will get the screen on your phone, using the optical trackpad select wipe, then flash from SD card. Then you are good to go.
I did this yesterday and ran into the same issues as you.
BTW I base this on using Windows 7 32bit.
Click to expand...
Click to collapse
Yeah I think this is where I am having the problem. When I connect my phone to my pc it has the popup saying android phone connected, but HTC Sync still says "disconnected"
I'll try some stuff.

samac92 said:
Yeah I think this is where I am having the problem. When I connect my phone to my pc it has the popup saying android phone connected, but HTC Sync still says "disconnected"
I'll try some stuff.
Click to expand...
Click to collapse
Also just try a simple reboot of your pc to stop any old adb stuff running and it might help clear any driver issues.
Sorry if this seems like an obvious thing to try, but sometimes the obvious stuff is what catches us out

samac92 said:
its 100 pages??
ive done a search and can't find anything!
Click to expand...
Click to collapse
I had the same problem, don't remember how I resolved it but I remember the answer was in the thread.

stingerpl said:
I had the same problem, don't remember how I resolved it but I remember the answer was in the thread.
Click to expand...
Click to collapse
ok well thanks
sorry i was panicking a bit lol

Make sure when you boot the phone up into recovery that you leave the USB cable disconnected and only reconnect once the red triangle appears.
I find if I leave it in, when it starts to boot on the HTC screen Windows goes a bit funny and fails to install the driver.

H00pyFr00d said:
Make sure when you boot the phone up into recovery that you leave the USB cable disconnected and only reconnect once the red triangle appears.
I find if I leave it in, when it starts to boot on the HTC screen Windows goes a bit funny and fails to install the driver.
Click to expand...
Click to collapse
oh :S i left it plugged in as i assume that was what i was meant to do
im using the r5 method here http://android.modaco.com/content/h...e-now-with-hboot-0-80-and-os-to-1-21-support/
I cant see anything about unplugging/pugging in?

That's my own personal experience. Try it.

Cant root Desire

Ok Guys heres what I,e got
Firmware ver 2.1-updat 1
Baseband ver 32.36.00.28U_4.06.00.02_2
Kernal ver 2.6.29-b7e82785
Build Num 1.19.707.7 CL171460 release keys
Software num 1.19.707.7
Browser ver Webkit3.1
Ok. now I,ve spent probably about 24 hours during the past three days trying to root the thing. made a gold card after about 10 attempts, have tried and tried to root the thing, have tried 3 or 4 different methods, most fail becase either I loose USB connection to the fone when navigating to Bootloader. From there on in she all over rover. Actually I,m not sure I have the right ROM to add to the fone, but I,d really like to get to the point where it asks for the rom. I,ve aged about 10 years since embarking on this venture, and still the thing is as bought. The phone isnt branded, bought it thru ebay from Hong Knog I think, has asian english which aint no fun. Have loaded Morelocal2 on but it still aint nice.
Can someone who has rooted one of these with similar ver software email me whith there secrets please before I go totally insane or really root the thing against a brick wall.
Cheers Guys.

Try the tutorial in my sig (second link). You should have no problems rooting with that.
It provides you with the required downloads for rooting. Just download and flash your ROM of choice in place if the 'rootedupdate.zip' file.
Please state any errors you recieve while attempting root.
-------------------------------------
Sent via the XDA Tapatalk App

Rooting Desire
I,ve tried your link, now my wife has been helping me, she cant get it to install either, I,ve even got to the stage of watching in Device manager what happens when it goes into Bootloader/recovery mode. the link between the HTC and the computer breaks,SOOOOOOO as I,ve stated before I have a very good understanding on HOW to root the thing, its just that for some reason I cant keep the phone connected thru the USB . I think this is the only prob I have. Something else that also happens is I get a Customer ID failed message half way thru step 1
What ever system I try to use to root this thig thats where I end up.
Wifie is going to try one more time, this time we are going to try the fone with a default startup to look at the disc not the HTC Syn.
Please keep trying to help guys

Rooting Desire
OK Heres the wifie update,
Screen says,
Pushing update file to device
error: device not found
error: device not found
Now wipe and apply rootupdate.zip from the recovery image menu.
Error: device not found
[email protected]:/mnt/cdrom/root$
So there we go guys, thats it in a nut shell

Try using the TinyCore method, I had all sorts of issues in Windows but this worked first time...see this post...
http://forum.xda-developers.com/showpost.php?p=6710081&postcount=2
obviously download the right Live CD for your bootloader

Also if you are trying to root in windows, make sure you have HTC Sync installed.

Desire root
Yep, I,m using the tiny core app followed the instructions in the link as advised. Still loses connection at bootlader/recovery

When you get back to Bootloader, how long do you wait before trying to run? As I normally leave it 5 or so seconds and then it's fine...if you do it too quick it'll say no device found
Which TinyCore CD did you download? I'm assuming you have HBOOT 0.80 on your device before you started?

Rooting a desire
An answer to your question, I,m using the tcl_r4_desire_hb80 file. when you ask how long are you waiting , I reckon it taks me more than 5 seconds to type in sudo ./step2.sh
I could try it again and wait longer.

Desire a rooted phone
Nope sorry guys, I,ve tried god dam everything, still wont connect afetr step 1 with tcl_r4_desire_hb80.
Somehow I need to be able to force a usb connection.
hey I tried this on Vista and XP, thought XP might be better. is there a stand alone app to force USB drivers when tcl_r4_desire_hb80 boots into termial screen

If you have done step 1, is it possible after failed attempts at getting into the recovery, you have usb bricked it?
Try switching it on normally and see if you have normal usb connectivity, and the sd card mounts and works fine?

socktug said:
If you have done step 1, is it possible after failed attempts at getting into the recovery, you have usb bricked it?
Try switching it on normally and see if you have normal usb connectivity, and the sd card mounts and works fine?
Click to expand...
Click to collapse
I too was thinking that there is a possibility of his device being bricked, especially when receiving errors indicating that the device cannot be found in recovery.

Rooting desire
OK, wondered that myself,
connected phone to PC, sync straight away with fone
reconnected it to pc in disk drive mode and connected, checked in My Computer and the disc drive was there with all my files.
Suppose that means everything there is ok to

OK if it isn't usb bricked then it's got to be a driver issue. My suggestion would be to follow the tutorial in the dev section and use tiny core linux.

Rooting desire
OK guys,,, so heres where I,m at, so far all info gained from you lovely people has been to no avail.
What I,m getting is this
In device manager I am watching what happens when the Desire goes from fastboot to bootloader. In bootloader I get "Android 1.0 with the yellow tiangle indicating it aint set up with drivers. In fastboot I get "My HTC" under Android USB Devices. now in either Bootloader or fastboot I,m only getting one or the other, and as I said, the triangle under "Android 1.0"
Now Ive gone to Android 1.0 and tried to add a driver, seemingly thers not a driver in the world that will work with Android 1.0. All driver in my Sdk dont work. The driver installer asks for a driver but wont except anything trown at it.

First, via your phone, go to Menu > Settings > Applications > Development and ensure the USB Debugging option is selected.
Try a different USB port.
I actually think you need to create a Gold Card even though you have stock rom 1.19.707.7
Try the Gold Card.
-------------------------------------
Sent via the XDA Tapatalk App

I have the exact same issue on win.7 64bit.
Try ignoring the no android 1.0 issue, continue to put your phone into recovery with the volume down and power buttons. Wait about 10 seconds after you see the black screen with red triangle, and then click on recovery windows.bat. Works for me everytime.
Windows takes it's time to see and install devices so it may be that you are trying things too quickly after connecting the usb lead.

Do I have a bricked usb card?...HELP!!!!!

Hi all...bare with me here, I posted this earlier, but in the wrong forum section so I am going to start over here.....thanks for your patience....
Hi everyone...I have a problem..I tried to use the Firerat zips to increase my internal storage, and during the flash of the zip file the phone hung and I had to pull the battery out.....since then the usb wont mount.
I am using a Tmobile mytouch slide 3g.
I tried using the sdk and running the fastboot commands etc to get the sd card to mount...no go.
I have tried the fastboot oem enableqxdm 0 command and no go....
Note:..My sd card works fine in a card reader on my computer, I can drag and drop anything to it etc. etc.
Finally i downloaded the stock rom, and i was able to put it on the card, and rename it ESPRIMG.zip and installed it through recovery...My phone was rooted and S-off running ginger, but now back to stock...S-on, and hating the phone now...lol.....
I have been all over the web and I am so confused...everywhere you search there is something different, I just dont know what to do, Windows doesnt recognize the phone when plugged in so I cant load custom rom etc back on....AARGH!!!..I am so frustrated, and have a migraine messing with this damn thing.....lol...
Someone here suggested the MISC is bad and that a binary flash_img would fix it, but honestly, I have no idea what any of that means...all that means to me is confusion, and I have that already.....lol
Can someone please suggest what I may try doing?I am pretty savvy with computers but some of the adb/shell stuff is very confusing to me, I dont like cmd prompts...so maybe a detailed explanation?..
Thank you so much for taking your time to read my problem, I really appreciate it very much.....Dirtylarry
"Kharma...It's a good thing"

ok man im gonna try to understand the problem... you say your usb mount doesnt work but the sdcard works with the adapter, then you went back to stock and un-rooted and the pc doesnt recognize your phone? right?
So it looks to me (just an idea) that the problem is your cable or the port on your pc... just beacuse your sdcard IS working in your phone as well since you used the ESPRIMG.zip(wich was really unnecessary) and you flashed it using the sdcard obviously.
Now you need to find a way to root it again just like you did the first time... dont mess with the drivers since you havent changed them in your pc (i guess) and try this guide....
http://richard.gluga.com/2010/08/complete-guide-to-rooting-and-hacking.html
Now all i can say is ALWAYS DO A NANDROID BACKUP BEFORE MESSING WITH YOUR PHONE. And check the cable/ports... thats the only problem i can think of...

well the fact that I have 3 computers that all used to recoginize the phone just fine is what's weird....none of them do, nor does my usb connection on my car stereo...the computers all say "USb not recognized" etc. etc. and the car stereo says USB N/A .......So i'm just at a loss as to what is going on here....Any ideas????? Thanks much ....Dirtylarry

Try installing PDA Net. It installs USB Drivers and resets the registry. One day it would work, then the next day it didn't work, reinstalling PDA Net worked every time.

Thanks Wave_Sailor, I tried the pda net install but it wont work....Everytime I try it says that it can't handshake to the phone, and then gives me an error code 103, I have tried many many times....also, in the device manager for computer it shows a yellow Exclamation mark everytime I plug the phone in listed at "Other Devices", and says Qualcomm CDMA Technologies MSM....So I googled, and found another thread saying Install Windows mobile 6 center, so I did, and nothing changed.......ARGH....DIrtylarry

Do part III, but while the phone is unplugged, download and install HTC Sync, and then plug the phone back in.
Sent from my T-Mobile myTouch 3G Slide using Tapatalk

Ok...I did EXACTLY what you have suggested, and in the driver information box this is what I got after the install....
USB Composite device installed successfully
USB Mass Storage Device Failed
Mytouch slide tmobil installed successful
Still a no go on the Mass storage device......hmmm.....so weird of a problem to have....I would have thought that clearing everything on the phone and going back to stock would have done the trick......any more ideas?...Thanks so much for your help.....Dirty

Have you checked in device manager on your computer to see if the mass storage device has a yellow triangle? I just went through the same thing but in reverse. My pc would see the sd card while in my phone but not through the reader. I still haven't gotten it straightened out either, just learned to live with it.

dirtylarry10 said:
Ok...I did EXACTLY what you have suggested, and in the driver information box this is what I got after the install....
USB Composite device installed successfully
USB Mass Storage Device Failed
Mytouch slide tmobil installed successful
Still a no go on the Mass storage device......hmmm.....so weird of a problem to have....I would have thought that clearing everything on the phone and going back to stock would have done the trick......any more ideas?...Thanks so much for your help.....Dirty
Click to expand...
Click to collapse
Make sure you don't have any drivers disabled. Ran into that problem with a different phone. I had one driver disabled so it wouldn't install some of the other drivers.
Sent from my T-Mobile myTouch 3G Slide using Tapatalk

Ok...just checked,...no drivers disabled in device manager...has to be something wrong with phone...its a/most like the driver is missing from within the phone or something...isn't there some way to get this back to where I could root it and install a custom rom again without the USB to phone connectivity and use my card reader to get some sort of files back onto phone that way?

ok....well I re-did the whole flash process over, and I am now rooted again once more.....I dont know how or why or what...but I am now going strong again.....lol thanks for the help everyone,

Hard Bricked LG E980 USB device not recognised

My LG E980 is bricked. I can access download mode and that is it! I am unable to boot into recovery,
and the hard reset screen simply sits there forever. My computer only recognizes my device as an "unknown usb device."
I'm unsure what can be done about this, but I feel like this is better than the infamous QHSUB icon displayed when the device cannot be recovered.
Does anyone have a remedy for this problem?? I have GOT to fix this phone and can't afford to Jtag the device, but I'm losing hope that this is possible, PLEASE help. :crying:

Have you installed the LG drivers for your pc and tried the unbrick method?

Yeah dude there's an unbrick method. If this doesn't work just sell the phone on Ebay. http://forum.xda-developers.com/showthread.php?t=2302660

There is never a time when this device cant be recovered. even the qhusb is a fairly simple fix. ill go ahead and make a sdcard boot image tonight. do you have a 32gb sdcard? (or larger) and an sdcard reader, if you have those two things i can make an unbrick.img that you flash toi the sdcard and put in the non-booting phone and it will get you to download mode/recovery mode. ill have to check out what partitions are where as i dont wish to include my efs along with it all .

twill1987 said:
My LG E980 is bricked. I can access download mode and that is it! I am unable to boot into recovery,
and the hard reset screen simply sits there forever. My computer only recognizes my device as an "unknown usb device."
I'm unsure what can be done about this, but I feel like this is better than the infamous QHSUB icon displayed when the device cannot be recovered.
Does anyone have a remedy for this problem?? I have GOT to fix this phone and can't afford to Jtag the device, but I'm losing hope that this is possible, PLEASE help. :crying:
Click to expand...
Click to collapse
Happened to me.
1. With the phone on download mode and plugged in the computer; uninstall the unknown device on your computer using device manager. The computer should try to get the drivers for your phone.
2. If it doesn't. Repeat step one and install the drivers first.
That worked for me hopefully I'll work for you.
Sent from my LG-E980 using XDA Premium 4 mobile app

Yes
riki126 said:
Have you installed the LG drivers for your pc and tried the unbrick method?
Click to expand...
Click to collapse
Yes I tried that. The drivers won't install. I even used another windows 8 computer my roommate has and switched out
the usb cables, still came back "unknown device"

shabbypenguin said:
There is never a time when this device cant be recovered. even the qhusb is a fairly simple fix. ill go ahead and make a sdcard boot image tonight. do you have a 32gb sdcard? (or larger) and an sdcard reader, if you have those two things i can make an unbrick.img that you flash toi the sdcard and put in the non-booting phone and it will get you to download mode/recovery mode. ill have to check out what partitions are where as i dont wish to include my efs along with it all .
Click to expand...
Click to collapse
I do have a 16gb sd card, but I can pick up at 32 gb sd at my local best buy. I have an Asus laptop running windows 8 and it has an SD card reader. I am a little confused (semi-noob) as to how this will work because my phone will boot up, and the led changes colors on the home button for about 4 seconds and then the light stops flashing. The phone is stuck on the LG boot screen, and there is no way out of it but to pull the battery or to reset with power button. Of course no recovery as previously mentioned. I really just want to get back to stock, but I can't manage to get both the windows 8 computers I've tried to detect the phone in download mode. Ever since I switched to the Candykat rom 4.4 the computer wasn't able to recognize the phone, even when the phone was fully functional inside the rom.
I have tried it on my dads windows 7 laptop as well with no dice. Instaled LG drivers, uninstalled LG Drivers, uninstalled device from the Device Manager. I've done everything I could think of. I previously was in a Philz touch recovery, but every rom I tried to flash wouldn't work. I tried to flash another recovery from inside it and then the device bricked like it is now. What a head ache. If you think this method would work, I am more than willing to try it, just unfamiliar with what I need to do on my end.

Okay
stulzerl said:
Happened to me.
1. With the phone on download mode and plugged in the computer; uninstall the unknown device on your computer using device manager. The computer should try to get the drivers for your phone.
2. If it doesn't. Repeat step one and install the drivers first.
That worked for me hopefully I'll work for you.
Sent from my LG-E980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I will give your method a shot, but I have done this a lot already. The only thing I can think of is I usually unplug the phone from the computer right after deleting the drivers and uninstalling in device manager. Maybe I should just leave the phone plugged in and see if the computer automatically downloads the drivers, but I don't think it will because I've tried to update the drivers before. It gives me an error code "10" and says the device has malfunction or stopped working This phone has been undetectable via USB since flashing the candykat 4.4 rom. Every computer I've tried (3) and every USB cable (3 again) has displayed it as an "unknown device"

twill1987 said:
I will give your method a shot, but I have done this a lot already. The only thing I can think of is I usually unplug the phone from the computer right after deleting the drivers and uninstalling in device manager. Maybe I should just leave the phone plugged in and see if the computer automatically downloads the drivers, but I don't think it will because I've tried to update the drivers before. It gives me an error code "10" and says the device has malfunction or stopped working This phone has been undetectable via USB since flashing the candykat 4.4 rom. Every computer I've tried (3) and every USB cable (3 again) has displayed it as an "unknown device"
Click to expand...
Click to collapse
I've had similar issues when i had my optimus g. I had to use a pc with xp to flasht he phone, dunno why though. You could give that a shot.

twill1987 said:
I do have a 16gb sd card, but I can pick up at 32 gb sd at my local best buy. I have an Asus laptop running windows 8 and it has an SD card reader. I am a little confused (semi-noob) as to how this will work because my phone will boot up, and the led changes colors on the home button for about 4 seconds and then the light stops flashing. The phone is stuck on the LG boot screen, and there is no way out of it but to pull the battery or to reset with power button. Of course no recovery as previously mentioned. I really just want to get back to stock, but I can't manage to get both the windows 8 computers I've tried to detect the phone in download mode. Ever since I switched to the Candykat rom 4.4 the computer wasn't able to recognize the phone, even when the phone was fully functional inside the rom.
I have tried it on my dads windows 7 laptop as well with no dice. Instaled LG drivers, uninstalled LG Drivers, uninstalled device from the Device Manager. I've done everything I could think of. I previously was in a Philz touch recovery, but every rom I tried to flash wouldn't work. I tried to flash another recovery from inside it and then the device bricked like it is now. What a head ache. If you think this method would work, I am more than willing to try it, just unfamiliar with what I need to do on my end.
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I dont know lg's download mode, kdz, tot etc all that well. im more of a samsung guy. however qualcomm since the s4 chipset has allowed for sdcards that are properly formatted to boot the os instead of the internal emmc. here is a decent guide, just need to make teh image for this device. this will let your device boot no matter how bad it gets you are welcome to try with 16gb, the rule of thumb i know of is as big as teh emmc is use that same size or larger sdcard, however some people have had sucess withs maller, just not many that i know of. http://forum.xda-developers.com/showthread.php?t=2439367
however afaik the only way to reflash teh bootloader partitions is via kdz/download mode so perhaps the sdcard will let you get into that mode and then you can flash, so long as you keep your sdcard like that it will boot fully, but in order ot get your sdcard back you need to repair teh files on your phone .

Thanks
WeActOnImpulse said:
Yeah dude there's an unbrick method. If this doesn't work just sell the phone on Ebay. http://forum.xda-developers.com/showthread.php?t=2302660
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I have tried this and unfortunately since the USB drivers aren't detected by the computer there is no way for me to flash back to stock.
Thanks for the information though, I appreciate it.

shabbypenguin said:
I dont know lg's download mode, kdz, tot etc all that well. im more of a samsung guy. however qualcomm since the s4 chipset has allowed for sdcards that are properly formatted to boot the os instead of the internal emmc. here is a decent guide, just need to make teh image for this device. this will let your device boot no matter how bad it gets you are welcome to try with 16gb, the rule of thumb i know of is as big as teh emmc is use that same size or larger sdcard, however some people have had sucess withs maller, just not many that i know of. http://forum.xda-developers.com/showthread.php?t=2439367
however afaik the only way to reflash teh bootloader partitions is via kdz/download mode so perhaps the sdcard will let you get into that mode and then you can flash, so long as you keep your sdcard like that it will boot fully, but in order ot get your sdcard back you need to repair teh files on your phone .
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Click to collapse
Wow, that sounds awesome. I followed most of that. I access download mode on the device by pressing vol up and down simultaneously and plugging in the usb cable. I am more willing to try this, and if it works I will pay you from my paypal. I guess all I need now are those files to run to the sd card. I read the tutorial you posted for the samsung and downloaded the windows disk manager. I am eager to try this method, though it is admittedly very new to me.. If you can post those files, I will follow the instructions you give and pay you a little bit of money for your help!
I am a broke college student so it won't be much, but I really appreciate your response and information on this method with the qualcomm s4.

Here is the unbrick image. follow the guide for your platform (gunna guess windows) and write this to your sdcard after backing it up. from there you need to restore your partitions by flashing them .
https://mega.co.nz/#!YB5xWQ7Y!Qcnx9UmcNn-f6skfiIFN-jd0EeYxdmrQGA1zzP5hfA0

Just wrote it to sd card
shabbypenguin said:
Here is the unbrick image. follow the guide for your platform (gunna guess windows) and write this to your sdcard after backing it up. from there you need to restore your partitions by flashing them .
https://mega.co.nz/#!YB5xWQ7Y!Qcnx9UmcNn-f6skfiIFN-jd0EeYxdmrQGA1zzP5hfA0
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Okay so I bought the 32 gb sd card. Just wrote the .img file you sent me to the sd card.
I powered on the phone and nothing happened, I got the same LG screen where the led flashes and then stops.
I followed that guide, but am I supposed to go to download mode instead of just powering on the device?
I got a little confused by the samsung jargon lol. I just want to know after I've written the unbrick.zip to the sd card
how do I get my phone to recognize the card is there? And once I am able to do that how do I "restore my partitions by flashing them?"
I do have the factory firmware set to flash through lg flashtool, but the phone can't be detected of course due to the usb issue.
Just want to say thanks for walking me through it this far, I feel like I'm close hopefully but unsure what to do next.

twill1987 said:
Okay so I bought the 32 gb sd card. Just wrote the .img file you sent me to the sd card.
I powered on the phone and nothing happened, I got the same LG screen where the led flashes and then stops.
I followed that guide, but am I supposed to go to download mode instead of just powering on the device?
I got a little confused by the samsung jargon lol. I just want to know after I've written the unbrick.zip to the sd card
how do I get my phone to recognize the card is there? And once I am able to do that how do I "restore my partitions by flashing them?"
I do have the factory firmware set to flash through lg flashtool, but the phone can't be detected of course due to the usb issue.
Just want to say thanks for walking me through it this far, I feel like I'm close hopefully but unsure what to do next.
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you wrote the image to the sdcard? i wonder if its because you still have the low level bootloaders that it may not be booting from the sdcard, normally this is done to fix qhusb errored devices. as for restoring the partitions all you would need to do is one its booted up push the unbrick image to the phone and use rooted adb shell to write it back onto your phone.

Possible hope??
shabbypenguin said:
you wrote the image to the sdcard? i wonder if its because you still have the low level bootloaders that it may not be booting from the sdcard, normally this is done to fix qhusb errored devices. as for restoring the partitions all you would need to do is one its booted up push the unbrick image to the phone and use rooted adb shell to write it back onto your phone.
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I meant I used the windows tool to write the debrick.img to the sd card. But no dice, the device isn't recognised.
However! I installed a driver clean up tool and now if I plug in the device it is recognized as Android Original ADB Interface.
The LG Flashtools even says the port is ready! But I get the error code "10" "device cannot start, A request for the USB device descriptor failed."
So now I am stuck on that instead lol. This just sucks.

that sucks about the sdcard, it must be because you arent "truly" bricked. sorry i thought it would help ya :/.

What is the driver repair tool you used? I know this thread is old but I'm having the same problem. I was trying to root my E980 and now my computer wont recognize my device. The phone works perfect, its just when I plug it in to the computer it isnt recognized. How can I fix this?

+1
Just wondering if anyone's come across a solution to this besides a sledge hammer... been having the same "Code 10: Device failed to start" when in Download Mode, though Windows finds a driver fine when the phone is stuck on the LG screen... doesn't help much, though, 'cause it won't receive adb commands. I manually installed the LG USB Composite Device driver, which added a modem and a COM port, both of which Windows recognized to be active, but the LG FlashTool USB Viewer showed no open pipes. I'm a relative noob, so please feel free to point out the obvious, like an alternative to adb that the phone can always receive or a way to brick it the rest of the way so the MicroSD trick will work.

I came across this problem like the OP and just wanna let everyone know that you have to use computer with USB 2.0 port then the driver issue would be fixed.