Develop Bugs

[Q] USB connection fails on 3 different PCs

I wanted to root my phone and flash a costum rom... unfortunately my DHD (2.2.1) is T-Mobile branded, so i had to create a goldcard in order to downgrade from 1.75.111.2 to 1.32. When it came to temproot it manually with cmd i had to plug my DHD into my PC in load only mode, usb debugging activated.
I knew already that my DHD wont recognize my PC or the other way round (i somehow broke it when i deleted the htcsync drivers.exe from my sd card), but i thought maybe it would somehow work in usb debugging mode.
Well, it didnt(phone not found).
i then focused on repairing my usb connection, so i tried it on 2 other pcs (mine is w7, the other ones are xp and win7) but it all failed
(xp asked for drivers, which i installed directly from htc.com today(on all pcs(plus i removed and reinstalled them all properly))/win7 did nothing/mine said that it fails to connect and that i should use a usb 2.0 port(well all ports are usb 2.0, i also tried usb3.0))
evertime i plugged my DHD in i was asked which connection i want to use, none worked, i also restarted my phone several times (usb connected and without) when i type in #7284# (or *#7284# i tried both) it says: connection failure or invalid mmi code
Finally i resetted my phone and did it all again! But it wont work!
please help me!

Hi...It looks like a driver issue...
If your drivers are installed correctly, in your win-7 Device manager it will show DHD.
I would suggest to Re-install HTC Sync from HTC website - Run it again and give it a try

doesnt work either.... win7 says the device does not run properly, my phone does nothin unusual...
i wonder if htc could fix the issue... this would be my last option
however i believe in you guys at xda!

how did you reset your phone?
Did you install the android SDK? Does adb recognize your phone? (run "adb devices", if your device is listed, everything should be fine)
On my win7-machine, the HTC-Software gives me an error message (along the lines of "phone doesn't respond" or something like that) but adb works nonetheless.

thank you for your answer but im afraid it didnt work... i installed the usb driver pack on sdk but i couldnt find it under sdk/usb driver..., however i found some files -> android/android-sdk/extras/google/usbdriver/amd64 -> usbdrivercoinstall2.dll... i tried to install this driver in hardware manager, and i tried to install an adb.exe which i found in my downgrade folder as a driver. but win7 said no driver installation is necessary the "best" drivers are already installed (win7 aint gonna install anything)
also my dhd is found under unkown device, -this device is deactivated because it made errors- "Dieses Gerät wurde angehalten, weil es Fehler gemeldet hat. (Code 43)"
well i deinstalled it and searched for new hardware, he now says the drivers are installed properly please restart however i neither see my sd card nor my devices name (instead unkown device with this little yellow triangle)
btw. for reset i used my android reset (settings -> sdcard -> reset)

It is normal, the HTC Sync turns on the USB debug?

Have the same issue. My DHD can be connected to the PC no other way than charge mode, no matter is usb debugging turned on or off. Tried 2 PCs with W7 and 1 PC with Ubuntu 10.04. This trouble appeared several days ago. Wipe didn't help. Thinking of re-installing firmware, but it seems like hardware problem. An engineer in our service center said it might be motherboard malfunction.
Some ways of solving this problem are described here: http://goo.gl/2eMcP But none of those solutions helped me. If anyone can help, please advise.
UPD: re-installing the firmware had no success - connection with PC failed. 95% hardware problem, will take it to service center.

Guys I know it's a stupid advice, but I had same problems (suddenly my connection with pc didn't work anymore): did you try to change usb cable?

giegi_dc said:
did you try to change usb cable?
Click to expand...
Click to collapse
tried 3 cables and 3 PCs

i just found a solution for me : i tried a forth pc (win7) freshly installed htcsync + android sdk + !downloaded! (not properly installed) adb drivers (which i surprisingly did not need) well i plugged my DHD in and he installed all drivers, but never asked for an adb driver. instead he had problems installing 7 different bluetooth drivers for my DHD (???)^^
it just worked for me this way (also worked for debugging mode + load only mode (for radio s-off/hboot s-off))
:|)
well it's not exactly a permanent solution just a temporal way to root my phone, but in worst case i think its nessesary to reinstall win7 on your pc....

[Q] Still Can't connect to Win7 PC (driver issues?)

Hi there.
I picked up a refurbed Incredible 2 (running 2.3.4) and am trying to get it to connect to PC so I can move files across between the PC and either internal memory and/or microSD cards. I'm having no luck on Windows 7.
I changed the Default Connection Type from Charge Only to Media Sync / Disk Drive / HTC Sync (after installing the HTC Sync software - NOT the HTC Sync Manager, which apparently only supports the newer phones) to no avail. I've tried them all, and they all have the same issue. I've done this both with and without USB debugging checked, and with "Unknown Sources" ("allow installation of non-Market apps") checked. I've also tried uninstalling Sync, installing Sync Manager, trying again (no change), and then reversing it (uninstalling Manager, and reinstalling Sync) - again, no change. Sync does not see the phone while connected and in "HTC Sync" mode via the Default Connection Type (or anything else).
When I plug the phone in to the PC the PC shows a "USB Device not recognized" and sometimes I will get a "Driver did not install successfully" message. Device Manager is showing one Unknown Device with a "!" issue under the USB controllers category I'm assuming is the problem. There is also nothing showing up under the Disk Drives category in my Device Manager other than my hard disk, even though some of the guides I'm looking at say I should have something related to the phone in there.
I've tried connecting it with 2 different USB cables, just in case the one that came with it was not fully functional. I've used the second cable for data transfer in the past, so it should work. No difference.
I've restarted several times, with and without the microSD card installed. I've tried unmounting and remounting the card as well, no difference.
Am I missing some kind of Win7 drivers for the Incredible 2 that are not installed automatically and/or with the HTC Sync install? I've seen some references and links to HTC drivers that are apparently not on the HTC site, but I am very leery of downloading an .EXE from a random website and just installing it to see if it works. I'd think if this was necessary, it would be on the HTC site.
Anyone know what gives here? I can't think of anything else to try.
Am I a complete newb here, or is this potentially an issue with the refurb'ed phone?
Thank you very much for any assistance!

I use the driver linked on the revolutionary.io site (http://downloads.unrevoked.com/HTCDriver3.0.0.007.exe) and I have never had an issue.
Sent from my DInc2...

update
Hi there.
I attempted this, but still no change. Do you know where this installs the drivers to, so I might try to manually point the Device Manager "Unknown Device" to them?
When I try to update the driver via Device Manager, however, it is telling me the following:
"Windows encountered a problem installing the driver software for your device.
windows found driver software for your device but encountered an error while attempting to install it.
'Unknown Device'
Windows has stopped this device because it has reported problems (Code 43)"
Thank you for any further assistance or ideas.

Doesn't matter where you place them but you'll need to go to control panel/system/device manager find the device with the issue and select update driver.... Then it should be recognized
Sent from my HTC Droid Incredible 2 using xda app-developers app

OP - do you have any other USB device drivers for other smartphone(s) installed on your PC? If so, uninstall all of them and reboot it clean.
Assumed that you are running VZW stock software - phone isn't rooted ?
Is your HTC Installer running this version - 3.0.0.007 - that's mine (have it running on W7 Pro and Ultimate on desktop & 2 laptop, no problems for me - I also have it running Win 8.
Uninstall HTC Installer & reboot - without connecting the phone. Turn off firewall & antivirus on your PC temporary, reconnect the phone & follow the prompts to reinstall HTC drivers. Once it's done, disconnect the phone & power down the computer.
Restart the PC and then reconnect the DI2 to it, hopefully - it will recognize the phone and allow you to connect & recognize the mSD card for data transfer, etc.
Please post any specific error messages as you see them. Good luck.

A common cause of "unrecognized USB device" is a bad cable. Try another. Or, try a different USB port on your PC.

[Q]D855 Drivers & detection problem

Hello,
i have a "big" problem with my G3 (internation model - D855):
when i want to transfer any file from my computer to my phone, i connect it via USB but i have no notification, juste the battery that enter in charge.. I go in the computer menu managment in Settings and swith to PTP, MPT and all other mods but no drivers coming on the computers.
About computers and cables, i have test with multiple USB cable & multiple computers (7, 8, 8.1) but i think that in my phone, the pre-install drivers are missing or corrupt or doesn't exist
I have think to boot in secure mode but i don't remember me how can i enter in this mod
So anyone have an idea ?

LG G3 (D852) MTP Problem

Okay so before anyone says this has been solved before it hasn't, I have scoured the internet left and right and I have not found any way to fix this problem. Also just as a pre FYI it's not just the LG G3, it's also happening with my work provided Samsung Galaxy S5 and my girlfriend's S7.
So here we go, no matter what I have tried or pulled off, I cannot get my new (old) laptop to recognize any device I plug into any of its 5 USB ports (3 USB 3.0, 2 USB 2.0, 1 USB 3.0 enabled with Super Charger), now as for the details, the laptop has windows 10 installed and to be more specific it's an msi gt70 0nc, so it's a higher end gaming laptop and I have tried everything and it just won't connect to any phone I plug into it.
And before anyone says if I've tried another laptop I have, to be specific I've plugged both phones into my lady's HP Envy with Windows 10 and both were recognized just fine.
If anyone is wondering here are the measures I've taken:
Installed LG United Mobile Driver (almost every version available)
Installed LG Mobile Driver (once again, every version available)
Installed LG PC Suite (Doesn't detect phone)
Tried switching phone between USB debugging and MTP PTP And Charge Only and every combination in between.
Have tried uninstalling and reinstalling Windows Media Player as it carries the MTP protocols.
Have tried installing the Media Feature Pack for windows 10 N and KN off of the Microsoft website
Have tried uninstalling the drivers manually and forcing an update on the drivers with no avail.
Have tried messing with the BIOS USB Settings on the laptop.
Disabled driver signature enforcement
Tried Safe Mode on both Laptop and Phones
Installed the Universal Google Driver
Installed ADB and fastboot (ADB doesn't detect the phone)
Installed KIES to try the Samsung (Doesn't detect phone)
Tried forcing generic MTP inf files
I'm honestly insanely frustrated and all I want is for this device to show up in my computer so I can install some roms and tinker. I've been trying all I could for the past 24 hours (Lost sleep) with no avail. Nothing seems to be wrong with the USB Ports as I have a Logitech unifying receiver plugged in for a mouse and it works, it just seems like this laptop doesn't like Android devices.
Going to device manager and forcing an update does nothing, the device sometimes shows up as "Unknown Device", sometimes shows up as "LGE Android Net MTP Device" and sometimes as "LGE Android Mtp Device", forcing the update yields the result "The driver installation file for this device is missing a necessary entry, This may be because the INF was written for Windows 95 or later. Contact your hardware vendor" This happens with both the LG and the Samsung. Any help would be appreciated. If anyone needs any more information or logs don't hesitate to ask.

Sure hope you find a solution and post it. I have EXACTLY the same issue. The last paragraph of your description is identical to the error message I am getting.
---------- Post added at 10:41 PM ---------- Previous post was at 09:52 PM ----------
Wow. All I did was uninstall and reinstall Media Player 11 and it started working. No driver error and computer detects phone now.

LG 3 D855 To pc

Hello my friend
I cant understand the D855 while trying to connent it to my PC.
I have installed all the drivers and PC suite
When I connect it with the usb cable- its makes the desired sounds - seems that everything is ok!
even V green mark that the driver installed is shown.
But, the most important- I cant see the Drive shown when I open "my computer" on PC
Dont have access to folders and files.
I tried more then everything
Change to MTP
Debuuging mode
Change some usb cable
I already make a hard reset.
The main problem is with morelocal 2 language.
In order to make the app change a language- I must connect it to the PC.
So
what do you think the problem is ?
Is there any way to install another rom without connection to PC ?
Thank you so much
salman

Well, I have kinda the same problem. My G3 isn`t recognizied by my pc or laptop in any way beside that sound it makes if you connect an usb device to it. It doesn`t shows up in the explorer or the device manager no mater how many times I install the drivers. I also tried to change the mode from MTP to PTP and anything else that is there. I resetted it a few times but nothing. Debugging mode also didn`t change anything. And of course I can`t flash a stock firmware because the Flash Tool won`t recognize my phone. What also is strange on my phone, if I disconnect my phone from my pc, my phone is still "charging" and it doesn`t change until I reboot.
I`m open for any suggestions which could solve this problem.
My G3 is a European modell, with 32GB. Current version is V30C and it was rooted with kingroot for this "two apps on screen" thing.