Database Users

USB connection problem

Well, the issues with this thing are coming in hard and fast now that they've been in use for a couple of months...
2 of my Pro's are having some severe USB connection issues. When connected and ActiveSync on, the USB connection drops out and reconnects every couple of seconds. This goes on until you disconnect the device - causing it to play the USB connection and disconnection sounds constantly.
I think this may be a cable issue, as I tried a non-palm branded USB cable that I got from some chinese guy on ebay and couldnt reproduce the problem on my computer.
Any thoughts? Anyone else had this?

viper- said:
Well, the issues with this thing are coming in hard and fast now that they've been in use for a couple of months...
2 of my Pro's are having some severe USB connection issues. When connected and ActiveSync on, the USB connection drops out and reconnects every couple of seconds. This goes on until you disconnect the device - causing it to play the USB connection and disconnection sounds constantly.
I think this may be a cable issue, as I tried a non-palm branded USB cable that I got from some chinese guy on ebay and couldnt reproduce the problem on my computer.
Any thoughts? Anyone else had this?
Click to expand...
Click to collapse
Did you do a hard reset recently. I've had that happen after a hard reset, when the phone was trying to install ActiveSync to the PC & couldn't because there was already an installed version. If that's the case, go to Settings -> System tab -> PC Setup. There are two options: "Setup My PC" & "Synchronize". Make sure it's set to "Synchronize". That should fix it. If not, then I'm not sure what you're experiencing.

USB Sync

I have searched this forum, found some Sync issues but nothing that relates directly to my issue. If I just didn't see it, point me in the right direction please!
I have a TILT2, stock ROM, I have made some reg mods for text msg notification, Data speeds & auto rotate via G-Sensor. My phone was syncing perfectly fine for a few weeks and I have the USB to PC "Enable Faster data sync" unchecked.
I lost sync a few days ago, I rebooted phone & computer figuring that would fix it as it has in the past only to find I only get charge light, no data connection. I don't hear the bum-bum audio indication that it is connected, and the device does not show under Device Manager nor mobile device manager and my connection methods include USB & Bluetooth.
Here is the caveat, I can sync to the computer through my bluetooth on my PC and I do hear the audio tone connection. I figure a reg change affected this, but I reviewed my changes, nothing dealing with USB, and I even reverted back to a Reg backup from prior to the problem occuring - no luck. I have swapped USB cords, nothing has helped.
Does anyone know of registry setting that would disable my USB sync? Do I have a defunct device?
Assistance appreciated - Dan

djwinn said:
I have searched this forum, found some Sync issues but nothing that relates directly to my issue. If I just didn't see it, point me in the right direction please!
I have a TILT2, stock ROM, I have made some reg mods for text msg notification, Data speeds & auto rotate via G-Sensor. My phone was syncing perfectly fine for a few weeks and I have the USB to PC "Enable Faster data sync" unchecked.
I lost sync a few days ago, I rebooted phone & computer figuring that would fix it as it has in the past only to find I only get charge light, no data connection. I don't hear the bum-bum audio indication that it is connected, and the device does not show under Device Manager nor mobile device manager and my connection methods include USB & Bluetooth.
Here is the caveat, I can sync to the computer through my bluetooth on my PC and I do hear the audio tone connection. I figure a reg change affected this, but I reviewed my changes, nothing dealing with USB, and I even reverted back to a Reg backup from prior to the problem occuring - no luck. I have swapped USB cords, nothing has helped.
Does anyone know of registry setting that would disable my USB sync? Do I have a defunct device?
Assistance appreciated - Dan
Click to expand...
Click to collapse
Is this of any help to you?
http://modernnomads.info/wiki/index.php?page=Windows+Mobile+Device+Center+Troubleshooting

Thanks for the link - I had found this before, and it really deals with no connection at all. I ran through most of the post, nothing helped. Considering I have sync via Bluetooth, it is not firewall.
Looking at restoring my computer to sometime last week, see if an update that came through caused this.
I'll post more when I done the restore.

OK - Update. I restored my PC to prior to issue, no luck. I disabled my security suite, no luck. I have tested the phone on another PC, it acts the same. communicates via bluetooth, but only charges via USB.
I am starting to work my way through the phone registry, is there any specific setting I should be looking for?

I'm just going to throw in a suggestion here: have you tried using a different cable? Often times the cable is the bad piece of the connection, but people don't even think to switch it out with another one.

And as well as the cable, have you tried a hard reset on your phone?

same problem!
i have the same problem. went to htc and they told me sorry you have a 3rd party rom so we are not going to help you.
yes i have treid 4 other pc's and 3 difrent cables and no luck.
please help!!!!!

Ferdi_H said:
i have the same problem. went to htc and they told me sorry you have a 3rd party rom so we are not going to help you.
yes i have treid 4 other pc's and 3 difrent cables and no luck.
please help!!!!!
Click to expand...
Click to collapse
I had the USB port go out on my TP2. I used the SD card to flash the sock hard SPL and then used the SD card to flash the stock T-Mobile ROM. Then I sent it in for warranty exchange. I suggest that you do this and then seek help from HTC.

cool can you perhaps help wit how to do it? please?

Ferdi_H said:
cool can you perhaps help wit how to do it? please?
Click to expand...
Click to collapse
Instructions are in this Forum:
http://forum.xda-developers.com/showthread.php?t=550540
Reversing hard SPL is here:
http://forum.xda-developers.com/showthread.php?t=649191

same problem here and the problem that the battery was draining even when the phone was off. call htc and the next morning the ups was at mine house to get the phone. 7 days later the phone was back with new motherboard. a had started a tread in general of this problem

Yep, mine too. I had to send it back to HTC UK for repair after the USB socket stopped working - came back with a new mainboard.
It looks as if it's prone to failure as I'm careful with connecting and disconnecting cables and it looks as if this one is already starting to go again!
Can't fail HTC UK Repair for it's great service though...

ActiveSync not working (all of a sudden)

Hi All
I searched the Forum but couldn't find a solution to this problem.
1. Came back form holiday yesterday - synced up my HD" with Outlook no problem
2. Tried to do it this morning. By the normal 'connect PC' option didn't come up and activsync icon didn'tr light up on PC
3. Rebooted HD2 and PC..no change
4. Tried to repair/reinstall activ sync, but towards the end of the repair it says 'there was a network error reading from file 'setup/msi'. Guessing that the file may be corrupt, I downloaded it again..same problem..so I can't repair or reinstall
5. There is definitely a connection of some sort as the HD2 begins to charge when connected
Bottom line is that the HD2 is not syncing - and I can't figure out why not.
Any advice appreciated...
Thanks

Do you have a Norton (Symantec) firewall installed? I’ve found that the Norton product can interfere with ActiveSync.

Active Sync not working
Good point..but no. I have AVG installed (and everything was working OK yesterday)
Spooky thing is, I have managed to uninstal, reinstal and reboot..and it still won't show that it's connected with AS even though there is a connection of some kind, cos the device is charging.
Steve

ActiveSync is just a bit crap. It'll do this occassionaly, so if you use it a lot then get used to it.
A restart of the phone, whilst the USB cable is not plugged in, usually does the trick. Only plug it in again when it's fully started.
Also, try setting the AS connection to not allow USB connections, unplugging and plugging back in, and then setting it to once again allow USB connections.
Just messing with it like that usually works for me. Like I said, it's just a bit crap.

Activ Sync
Yeah, I seem to recall I had this problem a while back - I'll faff around with the settings and see if it makes a difference
Steve

stevep said:
Good point..but no. I have AVG installed (and everything was working OK yesterday)
Spooky thing is, I have managed to uninstal, reinstal and reboot..and it still won't show that it's connected with AS even though there is a connection of some kind, cos the device is charging.
Steve
Click to expand...
Click to collapse
Well if johncmolyneux's suggestions don't work then try disconnecting your phone from the PC, restarting both, disconnecting the PC from the network, disabling the firewall element of AVG (if it has one) and then connecting the phone to the PC again.
If that doesn't work I can only suggest removing ActiveSync, totally shutting down your PC, starting up, then re-installing ActiveSync.
I had a similar problem but I was able to narrow it down to Norton in the end but it's a real pain when you don't know why it won't work.
Good luck with this.

I also occasionally was not able to connect with Active Sync, but rebooting the HD2 always fixes that issue. You said that this did not helped you, so try messing with the settings on Active Sync, like johncmolyneux said, also try when plug the usb cable into the device by default it asks you what kind of connection you're establishing (Active sync, data transfer and internet sharing) - try using data transfer, if it connects, unplug and connect it again, this time use active sync.

Reinstall activsync and Try to disable faster data Synchonization on HD2

Active Sync not working (solved)
That'll teach me to not check the obvious! - It turned out that the cable had developed a fault. I changed the cable and it's now OK.
Case closed.
Steve

[Q] Issue connecting Samsung Vibrant to PC

Hi All,
Can anyone help me in getting the issue resolved that I am facing.
Few days back all of a sudden my PC stopped detecting my Phone (Samsung Vibrant). I thought it might be an issue with my PC so I tried to connect the phone storage on some other PC, but the result are still the same.
I am also not getting any pop up notification on my phone to "Mount".
I can download anything to my phone via direct internet browsing but cannot transfer or upgrade my phone via my PC.
I checked all the setting and also restored my phone to Factory Default but still the issue persist.
Pleeeeeease guys can someone pleeeeease help!!!!!!!

Sorry to say this, but seems like a hardware problem. Did you tried with a different cable? Try Different port on the PC? What happens if you plug the phone to a wall charger?
Is the phone still on warranty? You can send it back to Tmo and get a "new" one.

Try a new cable.
Sent from my SGH-T959 using XDA App

Yes I tried different cable and also tried different port of PC but nothing happens. Also the other functions works as normal.
The phone charges when I connect to my wallcharger or PC. I often get a messag from my PC that the harware is detected but is not properly installed.
Any clues, also I cannot send it to TMO because I am not in states right now and TMO does not works here.
will flashing the ROM work?????

This has happened to me before. What usually works is to reboot the computer and then connect your phone to it. Wait for the connection error message. Then go into ur device manager and find the "unknown" USB device. Make sure u both uninstall and delete the "unknown" device. Unplug the phone. Reboot the computer again. And once its finished booting up plug connect your phone again.
Always works for me.
Sent from my SGH-T959 using XDA App

USB MTP/PTP Connection Problems to any computer.

Hello, I've had the V20 for a number of months now and love the phone, but I never tested out a data connection before, only to find out that when I use both the LG cable and a Anker USB3.0 cable, my phone is not able to connect to any computer. The system prompt to select the MTP or PTP connection appears, but after making a selection and the computer seeing the phone for a split second, the connection is lost and the USB prompt appears rapidly over and over again. I even went into developer options and set MTP connection always.
I tried a reboot, battery pull and capacitor discharge, and a full system restore. No fix. The only work around I have now is a samba server or moving files with the SD card manually.
Please, if you have any ideas? Does not work in Windows and Linux.
Thank you.

Have you installed LG bridge?
Sent from my LG-H990 using Tapatalk

dbo989 said:
Hello, I've had the V20 for a number of months now and love the phone, but I never tested out a data connection before, only to find out that when I use both the LG cable and a Anker USB3.0 cable, my phone is not able to connect to any computer. The system prompt to select the MTP or PTP connection appears, but after making a selection and the computer seeing the phone for a split second, the connection is lost and the USB prompt appears rapidly over and over again. I even went into developer options and set MTP connection always.
I tried a reboot, battery pull and capacitor discharge, and a full system restore. No fix. The only work around I have now is a samba server or moving files with the SD card manually.
Please, if you have any ideas? Does not work in Windows and Linux.
Thank you.
Click to expand...
Click to collapse
Did you enable USB debugging in Developer options? If no, enable it.

Change the power settings in windows for the USB.
Power options
Advanced settings
Disable "USB selective suspend setting"

Tried all the above
Pierre118 said:
Did you enable USB debugging in Developer options? If no, enable it.
Click to expand...
Click to collapse
Yes, USB debugging works and I'm able to use ADB with my phone and both the Windows laptop and Linux Desktop. However, neither is able to reliably connect through the typical MTP and PTP methods. I finally got MTP to limitedly work with MTP when I use the LG supplied cable and ignore the USB connection prompt in Windows and Linux. I go straight to File Explorer and access the file directory of the phone. Every time I open a folder or access a file though, the phone rapidly pops up the USB connection message over and over while the file moves.
All third party cables and USB devices are not working other than just charging. In Linux, the error message in my logs is:
usbfs: process 20678 (mtp.so) did not claim interface 0 before use
reset high-speed USB device number 101 using xhci_hcd

dbo989 said:
Yes, USB debugging works and I'm able to use ADB with my phone and both the Windows laptop and Linux Desktop. However, neither is able to reliably connect through the typical MTP and PTP methods. I finally got MTP to limitedly work with MTP when I use the LG supplied cable and ignore the USB connection prompt in Windows and Linux. I go straight to File Explorer and access the file directory of the phone. Every time I open a folder or access a file though, the phone rapidly pops up the USB connection message over and over while the file moves.
All third party cables and USB devices are not working other than just charging. In Linux, the error message in my logs is:
usbfs: process 20678 (mtp.so) did not claim interface 0 before use
reset high-speed USB device number 101 using xhci_hcd
Click to expand...
Click to collapse
Is this behaviour on accessing and copying? You can not copy a file from your Windows laptop to the phone?

Yes, I cannot open folder directories, nor move files from phone to computer or visa versa.

Also. Try to not let the phone screen turn off. Change display time to 15 minutes or something.. Change back when finished. GL

kaluna00 said:
Also. Try to not let the phone screen turn off. Change display time to 15 minutes or something.. Change back when finished. GL
Click to expand...
Click to collapse
No change.

dbo989, did you resolve this issue? By any chance are you running avast mobile security? I was able to transfer files both ways via USB and had the pull down USB options without ever having to add USB debugging. Then I installed AVAST and USB has become charge only... none of the widely recommended solutions above will unlock USB. I see no apparent settings in AVAST so I will call them. If no resolution then I will trash Avast

bcapollo said:
dbo989, did you resolve this issue? By any chance are you running avast mobile security? I was able to transfer files both ways via USB and had the pull down USB options without ever having to add USB debugging. Then I installed AVAST and USB has become charge only... none of the widely recommended solutions above will unlock USB. I see no apparent settings in AVAST so I will call them. If no resolution then I will trash Avast
Click to expand...
Click to collapse
No, I never could resolve it. I ended up using Samba to fileshare with home computer, but lost any OTG cable ability. Never used antivirus or security software with my phone.

dbo989 said:
No, I never could resolve it. I ended up using Samba to fileshare with home computer, but lost any OTG cable ability. Never used antivirus or security software with my phone.
Click to expand...
Click to collapse
Just fixed it... turned out to be the port on my PC, I switched ports and its back as it was, no need to enable dev mode or USB debug... its still slow connection... I have to look up Samba solution, never used it.
Thanks for sharing

I just experienced the same problem with the USB connection constantly cycling between being plugged in and not. Windows kept alternating between the device connected and disconnected system sounds. I unplugged the USB 3.0 to USB-C cable on both ends, unkinked and straightened it, and plugged the cable back into the PC and the phone. Hasn't made another peep for the last half hour and the phone is staying in USB file transfer mode. I wiggled the cable at the phone end and still no further disconnections. Maybe I didn't connect the cable securely at the PC end the first time.
This is the first time this has happened since I started setting up the phone this week, so I don't know what to make of it. Regardless, I need to order some more USB-A to USB-C cables since this is my only one.

USB File Transfer Issue - Resolved
Hi, I had the exact same issue with the computer not seeing the phone as far as files. I was still able to use ADB, Fastboot, etc, so I figure it was not a hardware problem. Tried two different computers as well. Every time I selected "File Transfer" in the USB settings, the phone would beep, and when connected to the computer, the computer made the usual chime. The phone would not show up in explorer still.
Previously this phone had been rooted, but I wanted to bring it back to stock. I had flashed the latest KDZ file. Then using ADB and Fastboot locked the bootloader. It seems that the USB issue happened after that. Here is what finally fixed it:
Turned on developer options the usual way (tapping build number in software info) and then turned off "Allow OEM Unlock." Then I turned off developer options. Still, no luck, so I then re-flashed the latest KDZ (H91820h) again, but this time with the bootloader locked.
After everything was done, I set the phone up again, and now file transfer works perfectly.
I did not want to chance locking the bootloader while the phone was still rooted. I learned the hard way about that, and nearly bricked the phone once before. Luckily I still had factory upload saved in the LAF partition.
Hope this helps someone out there.

Turns out it was not fixed permanently
lighttech said:
Hi, I had the exact same issue with the computer not seeing the phone as far as files. I was still able to use ADB, Fastboot, etc, so I figure it was not a hardware problem. Tried two different computers as well. Every time I selected "File Transfer" in the USB settings, the phone would beep, and when connected to the computer, the computer made the usual chime. The phone would not show up in explorer still.
Previously this phone had been rooted, but I wanted to bring it back to stock. I had flashed the latest KDZ file. Then using ADB and Fastboot locked the bootloader. It seems that the USB issue happened after that. Here is what finally fixed it:
Turned on developer options the usual way (tapping build number in software info) and then turned off "Allow OEM Unlock." Then I turned off developer options. Still, no luck, so I then re-flashed the latest KDZ (H91820h) again, but this time with the bootloader locked.
After everything was done, I set the phone up again, and now file transfer works perfectly.
I did not want to chance locking the bootloader while the phone was still rooted. I learned the hard way about that, and nearly bricked the phone once before. Luckily I still had factory upload saved in the LAF partition.
Hope this helps someone out there.
Click to expand...
Click to collapse
After thinking it was in fact fixed, I rebooted the phone several times, turned off, then on, and all seemed well. Until the next morning. I turned it on, and the same issue happened again. No File Transfer mode to computer. ADB still worked. After being on for a while and getting warm, all of a sudden file transfer started working again. Rebooted, and turned on and off, and it continued to work. I figure its a bad part with a thermal issue somewhere so I put it in the freezer for 5 minutes. When booted up again, the same problem occurred until the phone warmed up. Weird? So I tried something completely different. I downgraded the phone to H91810p and tested again. It seemed to work fine. I put it in the freezer again, and the problem will not show itself. For whatever strange reason the problem appears to be heat related, and ONLY happens with the latest KDZ, Oreo 8.0 The only thing that I can theorize is that the SOC is bad, or there is a bad area of flash memory that is intermittent.
Does anyone have any clues? I am going to put it back in the freezer, go to work, and test again when I get home to confirm.
Craig