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....

android phone driver

ok i been away for a week , got back to mine turned me com on and plugged me phone in to upload some pics and its telling me that android phone driver needs installing , which is weird coz its never said that before , ok it just says insert disk (i dont have one ) , and it automatically searches but cant find a solution . in device manager i can see android phone with yellow triangle with a ! inside it . can someone tell me how to fix this .. im on vista btw

Maybe your driver is corrupt.
You should install the newest Google USB drivers. If you installed ADB to your computer, you can start SDK Manager and within you have to choose Available packages/Third Party addons/Google USB driver package. You have to tick the box and install the drivers.
The drivers will be put to (in case of Windows) ...\android-sdk-windows\google usb driver folder. Now you have to install manually the drivers to work. If you select automatic or search in folder method, windows won't find the drivers. You have to choose it manually. If you have linux I can't help you.

installing vcom drivers

hii everyone i need some help..
i am trying to flash stock rom on C4 using sp tools.bot for that ineed vcom drivers installed in my pc.. itried via pdanet but to no avail the tool doesnt recognize the phone please help i am on windows 8 64 bit version...

Enable USB debugging in ur phone & then connect the phone

alok singh said:
Enable USB debugging in ur phone & then connect the phone
Click to expand...
Click to collapse
i already did that.no use.. still no use..

try this
http://www.skyneel.com/2013/08/micromax-canvas-4-flash-stock-rom-v1.html
it is the link where you can find all the drivers and tools required
hope it helps

Hardbricked/Softbricked Zenfone 2 ZE551ML/Z00AD?

Hello!
After replacing mainboard in my Zenfone 2, I'm not able to flash anything through fastboot, beacuse adb can't regonize phone-Getting Windows 10 Error- Windows Can't regonize USB. Before, I unlocked bootlader and installed MM bootloader. I have installed Asus Usb drivers, Google Usb driver and Intel Android Usb driver. Help me please I love my Zenfone,but I did something wrong. :crying:

Yanun said:
Hello!
After replacing mainboard in my Zenfone 2, I'm not able to flash anything through fastboot, beacuse adb can't regonize phone-Getting Windows 10 Error- Windows Can't regonize USB. Before, I unlocked bootlader and installed MM bootloader. I have installed Asus Usb drivers, Google Usb driver and Intel Android Usb driver. Help me please I love my Zenfone,but I did something wrong. :crying:
Click to expand...
Click to collapse
try uninstalling and reinstalling drivers. what does it shows in device manager when you connect phone to pc?

In device manager it shows error with port.

Reinstalled drivers. Still nothing. http://imgur com/a/ezps8

USB Drivers?

Hey guys,
I'm facing a problem: my W10 PC won't install the phone's usb drivers at all. It stay with the yellow sign and can't find the drivers anywhere - not even through Win Update.
I searched for them everywhere I could and without any positive results.
Do you know or have the USB drivers for this phone so I can install them manually?
On my laptop, there are no problems and I tried exporting all the drivers installed on the laptop and load them onto the PC but didn't find any driver so the PC could extract them. I can't access my internals on my PC cause of this.
Anyone?
Thanks in advance.

Solved: Apparently, Windows 10 Home Ed. is not capable of installing any kind of USB drivers (MPT, file transfer, fastboot, USB-debugging - nothing worked) for the device but re-installing with the Windows 10 Pro version, the phone got detected instantly and fully without any problems. Razer CC wasn't helpful at all, this time.