Intermittent USB connections. - Google Pixel 4a 5G Questions & Answers

Trying to find out if there are any bad USB port connections complaints here, but it looks like this problem is not very common, that's good - hope that Google will quickly take care of repairs. It started, suddenly, cutting out while connected to PC, it goes on and off generating in a very short time a dozen or so warnings on the PC monitor:" The device has either stopped responding or has been disconnected" The cable isn't the culprit, I tried 3 others w/ the same results plus, my other phone connection works flawlessly.

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Installing w/2.3 multi-instaler and bricked my 8125!

Is there nothing to be done? I had a phone whose touch screen was acting a little off. I used Cingular_Custom_AKU2.3_Combo_Installer_V1 after unlocking the device and it ran fine. When the OS first comes up it requires you to recalibrate your pointer tho, and since my touch screen was fouling up, I couldn't. I called Cingular and got a replacement phone this morning. I turned it on and let it load up its OS. I used ActiveSync and had a successful sync. I unlocked the device. I used Cingular_Custom_AKU2.3_Combo_Installer_V1 again to upgrade the OS. At 40% my computer unexpectedly rebooted. According to the messages that appeared when the computer came back up it was a driver error that caused the reboot (http://oca.microsoft.com/en/response.aspx?SGD=aa971456-440a-4269-a79e-1f07bda35989&SID=10). I tried to run the installer again but it could not find the phone; ActiveSync could not be engaged. I powered the phone off and back on and just get the RGB screen. I tried to reset the device but nothing still. Am I completely screwed??
Do a little reading on interrupted rom flashes. Search for "Bootloader Mode".
You need to flash your device again but this time you have to start in the Bootloader screen (RGB Bars).
Cool thanx. I looked around for people having problems installing ROMs but the only thread I found no one had answered. This gives me something to search for. Appreciate it!
~Anthony
One other tip, from what I've read, it is recommended to make sure your Wizard is connected to one of the MAIN USB ports on your computer, for desktops, these will be on the back of the computer (the ones soldered directly to the motherboard). The ones on the front are usually essentially connected to a USB hub, and not directly to the controller.
On a laptop, all of the ports should be good.
mine did the same thing last night with the 2.3 with cf2. i had chosen option 2 (no bootloader) and my machine rebooted at 40%. Since this has happened to me once or twice before, i walked in the other room and did the upgrade from the laptop without issue. then sync'd the phone back up with my desktop as was good to go.
On a side note, you don't need activesync installed to upgrade the phone. if you keep running into issues try from a different computer. thats what has worked for me.
flakrat said:
One other tip, from what I've read, it is recommended to make sure your Wizard is connected to one of the MAIN USB ports on your computer, for desktops, these will be on the back of the computer (the ones soldered directly to the motherboard). The ones on the front are usually essentially connected to a USB hub, and not directly to the controller.
On a laptop, all of the ports should be good.
Click to expand...
Click to collapse
Seconded. Use the USB ports on the back of the machine that are directly connected to the motherboard. Sometimes the ones on the front are connected to the motherboard via a cheap connection.
A number of manufacturers assume users will insert and remove devices which scrapes off the oxidation, and use cheaper metal because of this. A connection that stays in for a long time eventually builds a large enough oxide "crust" it causes problems with the electricial connection, and becomes flaky. This is possibly why a number of front-port USB plugs become intermittant after a while.
I've noticed newer PCs are using gold-plated contacts which tend to make this problem go away, but both mating contacts must be gold, else you get bi-metallic chemical reactions between them, and have the same problem as tin or copper-based contacts.
Sometimes there are so many things hanging off a computer's USB bus that you might just buy a PCI card with USB 2.0 plugs on it and use that.

USB device not recognized:Cant connect to laptop..??

laptop no longer recognizes tilt or tytn; changed usb cables; rebooted both devices and laptop; no go..
mssg I get is "one of the usb devices attached to this computer has malfunctioned. and windows does not recognize it"; any suggestions; cannot sunc nor tether via ISharing.
tia
a in yul said:
laptop no longer recognizes tilt or tytn; changed usb cables; rebooted both devices and laptop; no go..
mssg I get is "one of the usb devices attached to this computer has malfunctioned. and windows does not recognize it"; any suggestions; cannot sunc nor tether via ISharing.
tia
Click to expand...
Click to collapse
Hi
First of all try to reinstall Microsoft ActiveSync, than in the ActiveSync options, in your device, be sure that in "Connections..." setting "Synchronize all PC by this connection" is checked and below "USB" showed!
Otherwise, if your device, when connected to the PC, also doesn't charge (if you have this option enebled on your PDA!) there is some problem on your PC settings concerning the USB! Try to connect to someother PC to test it!
Ciao
thx...
@[email protected] said:
Hi
First of all try to reinstall Microsoft ActiveSync, than in the ActiveSync options, in your device, be sure that in "Connections..." setting "Synchronize all PC by this connection" is checked and below "USB" showed!
Otherwise, if your device, when connected to the PC, also doesn't charge (if you have this option enebled on your PDA!) there is some problem on your PC settings concerning the USB! Try to connect to someother PC to test it!
Ciao
Click to expand...
Click to collapse
hello there, first n foremost thanks for your input!
Before trying out your possible solution i tried to connect and for some reason i was able to connect via the device today...??!!
i really dont know why, but will try your soln if this situation reocurrs.
NB: this happenned to me twice in the last 3-4 months, n i never figured out the cause ??
any other advice or ideas gratefully accepted.;
its probably the same as me and loads of other people - the pins have bent on your usb connector - probably caused by using non standard chargers and usb leads. Its been widely reported. The non-standard leads have too much space around them when plugged in and wiggle causing the connector on the tytn II to bend. Try using the lead which came in the box and see if it helps. and try using the charger that came with it too.
Can bent pins be fixed?
Hello -- I'm one of those people with a non-recognition problem. Is it possible to fix the bent pins? My problem seems to have begun around the time I lost my original USB cable. Now, all the cables I have -- ones that have been specifically sold to work with my HTC Tilt -- have the symmetrical, sort-of-trapezoidal mini-usb connection, rather than the rectangle-with-one-corner-cut-off shape of the original cable. I should say these cables do charge my device, but none of my computers recognizes it as a USB device.
Help?
Thank you,
J. Georgia
bent pins continued
I should add that the charging cable that originally came with my phone has the same connector shape, so I'm not sure what's going on.
USB Device not recognised
This is known to happen at times win Windows, and not just for the TYTN2 but a myriad of devices.
The fastest fix for this:
Reboot ur PC/ Laptop.
If this Doesn't help - Then add in a reboot for the TYTN 2 also.
The problem will go away for some time.
I know its annoying, but this is way faster than troubleshooting for contacting MicroShaft Support.
axeman said:
This is known to happen at times win Windows, and not just for the TYTN2 but a myriad of devices.
The fastest fix for this:
Reboot ur PC/ Laptop.
If this Doesn't help - Then add in a reboot for the TYTN 2 also.
The problem will go away for some time.
I know its annoying, but this is way faster than troubleshooting for contacting MicroShaft Support.
Click to expand...
Click to collapse
Unfortunately this is no soution for me. I seem to have this problem as well, since about two weeks.
I use two notebooks (Dell & Acer) and both do not show any activity when connecting my Kaiser to the original USB cable. The device is not even switched on when I connect it, nor does this happen when I connect it to the (original) cable in my car, which did work before.
Charging works fine, both in the car and when connected to both notebooks, but no Sync at all.
I have tried another USB-cable with the same result, so I suspect some hardware-problem causing me to be unable to copy files between my notebook and my phone and worse, rendering me unable to flash a new ROM onto it.
Who knows what to do next?
I am mystified, too. USB Charging and audio connections work. I have rebooted my computer and done a soft reset on my phone several times, to no effect. I uninstalled and reinstalled Windows Mobile Device Center. Still nothing at all via USB. Once, yesterday, I somehow got a Bluetooth connection long enough to sync, but haven't been able to since then. Even then, Windows Media and AudibleManager couldn't see the phone. The really weird thing is, I can see the phone connection in my Bluetooth manager, but even with all the proper boxes checked, I can't sync. When I try from my device, I get an empty progress box which disappears after a fraction of a second. When I try from my computer, it says the device is not connected, but doesn't give me any option to connect.
Would a hard reset help?
If so, would returning an unlocked AT&T Tilt to factory defaults lock it back up? And what do I do if it does?
Please help!
J. Georgia
I have had similar problems with my touch pro in the past, even bluetooth internet sharing eventually gave up the ghost.
I tried a myriad of leads and then eventually reinstalled active sync- which did the trick.
USB sync not working
[email protected] said:
I am mystified, too. USB Charging and audio connections work. I have rebooted my computer and done a soft reset on my phone several times, to no effect. I uninstalled and reinstalled Windows Mobile Device Center. Still nothing at all via USB. Once, yesterday, I somehow got a Bluetooth connection long enough to sync, but haven't been able to since then. Even then, Windows Media and AudibleManager couldn't see the phone. The really weird thing is, I can see the phone connection in my Bluetooth manager, but even with all the proper boxes checked, I can't sync. When I try from my device, I get an empty progress box which disappears after a fraction of a second. When I try from my computer, it says the device is not connected, but doesn't give me any option to connect.
Would a hard reset help?
If so, would returning an unlocked AT&T Tilt to factory defaults lock it back up? And what do I do if it does?
Please help!
J. Georgia
Click to expand...
Click to collapse
I've had the same problem with my first Tilt. There's multiple threads that detail this known problem. Some seem to be due to bent pins, some are general hardware failures (possibly the USB controller). There are some HardSPL images out there that have a "force usb" option enabled. This never worked for me, but it might be worth a shot for you.
...a word of warning....
If you end up reflashing your phone (via MicroSD) and the flash goes bad, you may be stuck, as many of the solutions for repairing a bad flash require you to USB sync. My first Tilt was a victim of this after a bad stock ROM flash that left my device without audio, and unable to flash via MicroSD.
replace usb board
you need to replace your usb board. It will run you less than $10 if you do it yourself. you can get the board on ebay
really? 4 years later?

Xperia Usb Connection and Charging Problem...

Hai..
iam new bie, i just newly purchased xperia xli. after using 4 month, iam now facing some problem, every time if i need to charge or connection for active sync i need to restart, and this repeats every time. and if i try to open task manager or Device information in settings it will give an error
"cannot open 'ctlpnl'. A critical conponent is either missing or cannot start because program memory is unavailable. Tap start> settings > system tab> task manager, stop programs that did not automatically stop and try again".
and i cannot even make screen off by pressing power button for that also i need to restart.
So please give me some information regarding this so that i can solve this problem.
Thank you
I would hardreset it
Thanks for reply
I had done it already, after hard reset first time i can charge and connect to active sync also, and if i disconnect it and try another time it wont work, again i have to hard reset to charge or to connect it to active sync. so pls give me solution for this,
for more information i will provide my device information
software version: R3AA003
ROM VERSION: 1.05.931.3 WWE
MODEL : XLI
xperia usb connection problem
i see no one is taking this matter seriously
i have googled for the past 4 weeks and it seams many people are having this problem with xperia/wm6 devices - its just that not many of them understand the problem and know how to express themselves (e.g. many belive it's a problem with the pc's usb ports)
i would suggest does interested in IT mysteries and things like that to look into this one. i can explain the problem here:
I've used xperia/windows mobile 6 device for about 6 months, syncing it daily or semi daily (or weekly..) all that time via USB connection and active sync installed on winxp.
one day i plugged the usb cord into my phone and - nothing. the phone has started charging as thou it's connected to a charger and not to a PC - one of the first things i noticed cause i specifically always have the "don't charge the device while connected to a pc" box ticked on.
what is very important to know is that NOTHING of the following didn't fix this problem:
changing cords
changing ports
changing pc's
soft reset via button on the back
hard reset
nudging the cable
usb hub pc connection
direct pc connection
updating windows mobile
toggling ANY option in the OS itself
charging/discharging the device
changing the chargin cable, then connecting
leaving it off without a battery for a long period of time (12+ hours)
---------all other idiotic suggestions that are being written all over the net by dumb asses who think they can shoot a guess and come of as smart guys---------
bear in mind that this happened after absolutely no physical damage to the device or any kind of extreme working conditions, exceeded cpu/memory use etc.
it would be great if someone could solve this mystery. activesync is still working via Bluetooth but it's just stupid to transfer files over the slow bluetooth connection whilst having a USB connection as one of the greatest advantages of this kind of a device
i kindly thank in advance to anyone having some kind of an idea about how it's possible for a USB connection to just stop working, for absolutely no reason.
bye&cheers!
Matija
Anyone has the solution for this problem? Like Matija said, it happened suddenly for no reason... My x1 has been facing this problem for 3 weeks
I cannot update my phone via my PC
I recently having problem with my X1 syncing with my home PC and charging from my Laptop
Now I found out that, those mini USB cable might be good enough to charge the phone, or even trying to sync, but then it gets error more and more often. So try getting some better quality cables (ie. those with "Magnetic Shield" near the end), see if that fix the problem
good luck
Flash another ROM?
rickysio said:
Flash another ROM?
Click to expand...
Click to collapse
I have done flash newest ROM by sd method... yet it's still not working
Changing the cable is the first thing I've ever done
up on this thread...
it's been sometime, I am having the same problem, tried all the above in vain..
any solutions?
Having the same problem here.. I faced it after I formatted it by clicking on (Clear Storage) under System tab.

USB Connection

Hey there
My phone has been connecting perfectly fine since I got it about a year ago right up to a couple of days ago.
I've just changed my contract and wanted to unlock the phone. However, before I could even go about doing I discovered that my computer (Vista 32bit) was no longer recognising the phone.
When I plug it in it does charge but the computer gives no reaction. Even when I put the Kaiser into bootloader it still says Serial instead of USB.
I have tried disabling enhanced network functionalities on the phone, I have reinstalled Windows Mobile Device Center, I have hard reset the Kaiser, I have used multiple USB cables and multiple USB ports (all of which work with other devices).
As a result of the hard reset I have now lost the majority of my data. It's all backed up on my computer but this isn't much use when it refuses to recognise the phone!
What can I do to fix this?
Any help would be very gratefully accepted!
Cheers
McAsh
I would try it on a friends XP machine or a friends Vista machine. Try to narrow down if it is the phone or your PC , and then proceed from there.
HI!
I have the same right problem!
The only way i can do activesync is connecting the phone in activesync by bluetooth and the sincronization is fine, but i need to put HardSPL in it and i need that it can be recognized by USB connection and my Kaiser is only charging from USB, it is not being detected by the computer.
PLEASE HELP!!!
Thanks!
had same problem
no one help, I started a thread and no replies
till today I plugged my kaiser to usb and computer recognized and synced
I was using bluetooth to sync for a couple of months
I really didn't do anything to fix this first I thought it was usb connection but it wasn't because I was able to put new rom thru the usb so connetctoin was there when the phone is in the hard reset mode. WEIRD ha
mostly these things comes down to 3 reasons
1. defect usb connector in the ppc
2. corrupt activesync install full uninstall and clearing registry of the pc should fix that
3. issue with usb port chipset drivers for on the pc
Also having a similar problem.
My computer recognizes my Kaiser as "HTC USB Sync" in the Device manager but nothing more happends. Could it yet be the phone USB connector that is broken? Also I was able to flash the rom yesterday (from bootloader).
When plugged in, my phone totally freezes and becomes available again the moment I unplug it and by then starts "connecting to host".
If I uncheck the "allow usb connections" box in WMDC the phone is workable but very juddery.
Have tried to completely uninstall WMDC and reinstall it again with no success whatsoever.
Any tips or is my only solution to buy a bluetooth-dongle?
The solution for mine is really the repair center unfortunately!
It really seems to be a hardware problem in the USB connector, i can't even change a firmware, the pda simple isn't recognized by the computer :S
Anyway thanks for the help!
Regards!
I am also having the same problem!! My question is how do you use bluetooth to sync with the activesync(not too computer saavy!!)
Check the usb connection on the phone. It may have a contact pushed over or broken
I got the same sympton.
I can get my phone to sync by pushing the USB connector harder towards the phone. Yes, it is connected already, and it is not lose, and the PC recognise it as HTC device in Device Manager, but it is just not detected by the (Vista) Windows Mobile Device Center
If I keep pushing the usb connector in (towards the phone), then it would get detected and start syncing. If I relax my hand and stop pushing, the active sync connection will drop immediately (still detected as HTC USB device in Device manager though).
Therefore, I have to keep pushing it in to have a successful sync. I don't dare to flash the firmware anymore... :-(
P.S. I am using the official O2 WM6.1 firmware, and using the original USB sync cable. I noticed that the original USB cable's connector head is a bit longer than ALL my other USB cable's connector head (the mini USB head).
Originally I didn't need to do the push in for the phone to get recongised, so I figure it is some sort of wear and tear on the phone's connector... :-( This does put me off in purchasing another HTC phone, because the new one is likely to suffer from the same wear and tear...
btw, before the connector got that bad, when it was connected but not synchronising, I could get it to sync just by launching Windows mobile device center (which is a different program than sync center in vista); and of course, when it was all brand new, I just need to connect the phone to the PC via the USB cable, and everything happened automatically...
I am trying to flash my first rom and the computer would not detect the phone. Took a look at the female mini USB socket on the phone and the 3rd pin out of 5 was much lower. Took a tiny screw driver and pushed it up and I got success. Its a little sensitive but if you dont touch the phone it will work fine.
Good luck
Jason
HI gdarrenc!
The way to sync it via Bluetooth is when you open the activesync in your pda, in the options menu you have the option to sync via bluetooth
Regards!
possible solution if feeling brave
My hotsync failed a few days ago, did the usual searches and posting on here with no joy and then did a google search for a picture of the mini usbport.
on inspection of mine in comparison i noticed the two leftmost pins were down to the point they were in the sticky out black bit so with a pair of my wifes best precision tweazers i flexed the black bit down slightly and slid the tweazers to the right lifting them up slightly. as soon as retested it is now working again.
NOTE BE VERY VERY GENTLE WHEN DOING THIS - DO NOT USE ANY FORCE
my guess is this is due to an ill fitting usb cable as mine had a certain degree of up and down flex when connected.
hope this helps someone.
I am also having issues with pc-htc connection.
But, this happened when I pulled the usb out of the phone with my leg.
Now, I squezzed usb head a little, and it works fine.

[info] USB Connection errors

Solution: Try different USB ports (all if necessary). Yes, this seems like a silly oversimplified answer but it is a common problem.
Maybe it's because the Cappy is old and the recessed port makes fully seating the micro USB cable difficult. I whittle away the plastic around the cable's connector to make sure it seats fully without obstruction. Even then, it creates a 'long-neck' connection that tends to have side-to-side play. Over time, with daily use, and bouncing around the car, the port on the phone can warp and cause a loose fit. I've tweaked the metal around the port to tighten it up a bit, but you have to very careful not to damage it.
A combination of the quirky port on the phone and your PC system can cause USB connection errors that seem to defy logic. Once it causes an error, nothing seems to resolve it; rebooting, clearing Windows log files, wiping and reinstalling drivers, etc., did not work. 'But I can connect an LG L5 that uses the same type MTP connection and it will work just fine?' So using this rational, I spent countless hours flashing the phone and working the forums. I'd been through similar circumstances enough times I should have known better, but I inevitably gave up and just switched USB ports on the PC and viola!
Your desktop or laptop typically has a set of board soldered USB ports (rear panel), and form factor wired USB ports (front panel). I don't know if it's a Windows thing that is not an issue with Linux, or a system firmware issue, I have had unrelated USB issues running Linux on my PC as well. But at some point the error mysteriously goes away and the connection will work again, possibly after disconnecting all USB devices and letting the system reinitialize them at boot? Since I'm on a laptop that frequently has different USB configuration, I'm not sure what actually fixes the problem.
I know the pain!

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