who can help me to solve the problem "unknown device error" - General Questions and Answers

So depressed, this morning, when my phone is in syncing I answered a phone and the mobile synchronous interrupted, Ijoined it to my again, the pc shows"unknown device",
I tried to updated drivers, but no use
I reboot my Touch PRO,the PC also shows "unknown device",
I reflashed a new rom to my phone , the pc shows as the same""unknown device",
I connect my colleagues' HTC C720 and an imate PPC to my PC ,they could be activesynced with my pc. My touch pro also could be synced with their PC
who can help me.It makes me crazy.

Simple mistake. It's possible that everyone may have had this problem before.
It's a Device Partnership Error.
I'll help you with the easiest way to fix this(in my opnion).
1.) Unplug your Device from your PC
2.) Download & Install CCleaner HERE
3.) Uninstall Windows Mobile Device Center/Active Sync from your PC
4.) Run CCleaner (Run the Windows Cleanup & Registry Cleanup [FIX EVERYTHING])
5.) Restart your computer
6.) Download & Install Windows Mobile Device Center/Active Sync
7.) Soft-Reset your phone
8.) Plug in your Phone during its boot-up
Reply with results.

Agent Zach
I followed your instruction
but it's no useful
thanks all the same

Related

Computer wont reconigize my G1

I am using Windows Vista Ultimate. Everytime I hook up my G-1 it shuts off my internet connect and it gives me an error message at the bottom right about it not reconigizing the device. It will allow me to charge it but I can't access the sd card or use my internet when connected. please help. P.S. I can take it to anyone elses computer and it works just find (XP & Vista).
cyanogen 4.2.3.1
Welcome to forums
Have a look here:
http://wiki.xda-developers.com/index.php?pagename=HTC_Dream
Hope it helps,
check out for the program 'USBdeview' and run it. It allows to correctly unistall any previous driver, then reboot, connect the g1 with the cable, choose 'manual install' and put on those, they will do the job fine
make sure USB Debugging is enabled (Useful for ADB Commands)

How to Flash Wizard ROM in Windows 7/Vista using VMWare Virtual Machine/PC

Hi Guys,
Most of us may know this method, but thought of putting it on the forum anyways.
Requirements:
1. You will need a Virtual PC for this method, either VMWare Workstation or MS Virtual PC. If you don't know how to use/setup Virtual PC, google it.
2. We will flash the Wizard by putting it in the bootloader mode.
Procedure:
1. Setup a Windows XP Virtual PC and start it.
2. Backup your phone.
3. Remove Memory and Sim card.
4. Remove phone battery and wait for 10-15 seconds.
5. Insert battery.
6. Press the power button for only a second.
7. Hold the camera button until you see the 3 band colored (red, green and blue) screen with the IPS/SPL info.
8. Connect the Wizard to your computer.
9. Windows 7/Vista (which is the primary/main Operating System) will add drivers, you may or may not get a message.
10. In the Virtual PC, goto the menu where you can connect/disconnect removable devices.
11. Here the Wizard will be listed as a USB device, you can identify it easily.
12. From here on you can flash the ROM, i recommend you follow the procedure listed in the "How to flash a new ROM to your Wizard... a little tutorial!" thread 298613.
Note: You may experience issues with this method. It is recommended to keep a copy of Virtual PC seperate.
1. Sometimes the flash progress may be stuck at 0%.
2. Shutdown the WinXP Virtual PC and try again.
3. It the Virtual PC doesn't starts, delete this Virtual PC file and use the backup (create a copy of the Virtual PC file first).
Happy Flashing.
Disclaimer: Info provided in good faith, I am not responsible for any damage/loss of any kind that you may experience following this procedure.
Your method is way too complicated. I flashed my wizard from windows 7 using this guide: http://forum.xda-developers.com/showthread.php?t=485293
Thanks
Thanks for the link, the RUU was able to flash the Hornet 5 ROM (thread 416636)perfectly, but it could not flash the RUU_TMobile_US_226102_22610105_022511_WWE_Ship, I got "file not found" error.
I wish there was a universal Windows 7/Vista compatible RUU for Wizard.
You are making it too hard! Download the Vista drivers I am uploading-its for Windows 64 bit. Restart your computer while holding down f8. Turn off digital signing of drivers. Put your Wizard in bootloader mode and connect to pc. Open (from the Start Menu) CONTROL PANEL>HARDWARE AND SOUND>DEVICE MANAGER. Find your ppc in the listed menu. Hit update driver. Just go through the menus hitting next until you get to an option where you hit "HAVE DISK". Hit browse, find where you have it on your computer and install. SEARCH IS YOUR FRIEND, TRY IT, USE IT, LOVE IT.

[Q] usb serial driver

Where can i download a free serial usb driver for windows smartphone?
What do you want to do? Serial interface is already included via Bluetooth (incoming and outgoing port) - not sure about USB, despite AS connection in "not enhanced mode (RNDIS)" is said to be "serial" as well.
I need the driver to connect my smartphone to a new pc via usb. My old pc crashed recently and i wasnt able to backup any software. Also, ive lost the cd which came with the phone and i dont know where to get a replacement.
You need a driver for the PC, not on the device. I have no experience with new OS, only Win XP. What happens when you connect the device via USB to the new PC?
My os is winxp. When i connect to the pc it says "found new hardware generic serial" then it brings the found new hardware wizard . I cant continue since i dont have the recquired driver on a removable disk or anywhere on the pc.my phone is spv c600
You need to install Active Sync first on your PC. This should install also all needed drivers for the device to connect. Look here: http://www.microsoft.com/downloads/...34-6f7f-404d-a04b-dc09f8141141&displayLang=en
I have already installed activesync 4.5 but i didnt see it install any drivers.
Is WinXP on the latest Service Pack (SP3 I think) and does it have all Microsoft patches installed afterwards?
AS install should put the drivers to the repository for later install when needed - it will not install the drivers right away. Why don't you let the driver's install look for the drivers in the internet - I don't remember any similar problems on my PC.
Search Microsoft for USB serial driver and RNDIS driver for XP if install does not get it for you automatically.
Oh! It has dected the phone. I reinstalled it while the device was connected to the pc and it worked . thanx so much

[Q] How to root a Yusun W808

Hi,
I have a very unknown phone from China, the Yusun W808 It is based on a qualcomm MSM8225q chipset. I ordered it from FastCardTech and asked for a Pre-root when I placed the order.
Upon receiving I found out that the phone was not rooted... They only put some instructions on a piece of paper inside the box.
I followed the instructions but as expected, no results...
The instructions
1. Please open usb debugging and connect to your pc.
2. Download USB driver ( Snappea ) and install to your pc, when the phone is recognized, please turn snappea off.
3. Go to task manager and kill wandoujia helper process.
4. Extract root tool to your pc ( The known motochopper tool from djrbliss ) and click run.bat, then press enter on your keyboard, and just wait about 1 min, it will remind you to press enter again and then it shuts down and auto reboot. Meanwhile do not touch anything on your phone or pc or the phone will get bricked.
5.Check menu- if there is a # icon, if yes, it's rooted, or do it again.
The problem is that my phone can't be recognized by my pc. snappea says " cannot get phone stats" and motoshopper wont go further than "Daemon started successfully"
So my first thought is that the problem lies with the usb driver. I have no idea how I can get the right USB driver for this phone
Does someone has any idea how I can continue my quest here?
Thanks in advance
Yusun W808 = iNobel N1 = Ai Nuobei N1
Parameters

[Q] windows 7 can't recognize my nexus 5

hello
i'm trying to connect my nexus 5 with to my laptop (dell xps 1340 running windows 7) and nothing shows on "my computer".
i go to the setting - storage - usb computer connection, and check the first one (MTP). unplug and plugit again and nothing shows on my computer.
so i tried to uninstall the nexus 5 on the device manager, unplun and plug, then right click and update software driver, browse computer for driver software, then i navigate to the latest google usb driver that i download from google, and when i try to install the driver it says: "windows was unable to install your nexus 5".
what should i do?
yaron86 said:
hello
i'm trying to connect my nexus 5 with to my laptop (dell xps 1340 running windows 7) and nothing shows on "my computer".
i go to the setting - storage - usb computer connection, and check the first one (MTP). unplug and plugit again and nothing shows on my computer.
so i tried to uninstall the nexus 5 on the device manager, unplun and plug, then right click and update software driver, browse computer for driver software, then i navigate to the latest google usb driver that i download from google, and when i try to install the driver it says: "windows was unable to install your nexus 5".
what should i do?
Click to expand...
Click to collapse
Try changing the USB connection to PTP and see if that works for you. If it doesn't, use this tool to help set up your USB connection. http://forum.xda-developers.com/goo...olkit-wugs-nexus-root-toolkit-v1-8-0-t2517778 You don't have to actually root or unlock anything so the process should be pretty easy. All you need to do is click the Full Driver Installation Guide button and i will guide you through the process.

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