Cannot connect - General Questions and Answers

I flashed the firmware on my Diamond with this one.
It installed without any errors or anything like that. It works. The problem is connecting the phone to my PC again. When I plug in the USB cable, my phone says this:
"Cannot open the connection "57600 Default". This connection is no longer valid or does not exist. Select a different connection and try again."
How to fix it?

How did you flash this rom onto your device if it can't connect to the pc(activesync)? Or did this start after the upgrade? Try to delete the current partnership you have for activesync and try with a new one.

LOL
I can't believe this.
I just plugged it in and out a couple of (dozens of) times... and it works now. WTF?

Related

Helmi's AT&T Rom Won't Let Me Use Activesync

Everytime I connect my PC to the phone via USB cable, I get a message from XP saying,
"USB Device Not Recognized. One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it."
Activesync never goes green and I can't flash my phone to a more stable ROM. I just got my TILT 2 days ago and really don't want to be stuck with such a slow ROM. I flashed the phone to the HTC AKU bigstorage ROM before this and everything worked fine. It's just when I tried to flash to the AT&T Rom did I run into this problem.
Any help will be much appreciated. Thanks.
Have you tried rebooting your PC?
If rebooting the PC doesn't do it you may need to completely re install activesync itself. Worked for me....
I reinstalled activesync and now it works.
BTW, is there a way to stop Activesync blinking my programs in and out from being selected on my PC?
setting -> connections ->usb to pc -> uncheck a mark. this should help.
the best idea - change rom to htc, faster, more relible, no sync problems.

vista and unable to connect

i upgraded to tomal's rom to give it a try, and it works great, problem is i can't remove the rom....mtty tool doesn't work cause everytime i connect to xp, vista don't matter about 10 cords it always say usb unrecongized and when i do the ruu...i get a error so i was going to try the mtty but i can't even connect the universal to the damn pc, in bootloader it goes from serial to usb when you connect that works, but u see it connect to the pc for like 2 secs then the usb unrecongizeable any help i'm tired of reading all these treads....thanks in advance
bty mtty tool only shows com1 and com2 no usb at all
I found out what it was, i had to go in to safe mode and when i plugged it back in i hurry up and stop the auto update, looked in device manager and there it was *** pocket usb sync **** before i couldn't see it now i followed the post on upgrading using vista no problems thanks!!
Mods
Can delete this thread please?

[Q] cannot connect to bootloader

hi. i'm having problem in connecting my device in bootloader..
i used to be able to connect with PDAnet in bootloader without any problem, but now all i have is "connecting to your phone". I've downloaded the USB driver package from the sdk but still no luck..
any idea ?
*yes i search the XDA forum and try following the guides but i still have no luck*
have you tried the connection on another computer?
sometimes the computer USB ports tends to go crazy and wont work with the device no matter what
there's an utility (forgot the name) that lets you delete all the bugged USB associations in the PC
if you can find that, then you can try it as well
AllGamer said:
sometimes the computer USB ports tends to go crazy and wont work with the device no matter what
Click to expand...
Click to collapse
phew,, thanks.. ur tiny remarks save the day... i never knew and never thought it may be the USB ports problem, so i tried to replug the USB cable to different USB ports and it works...
Thanks...

[Q] Trouble mounting file system to PC

Ive tried removing and reinstalling drivers. Seems like I have some issue whenever I try to mount to my pc it refuses and starts slashing the usb connected at the very top bar and then back to disconnected. Ive tried different ports, different cables to no avail. Also...if I try to plug into the ports directly on my laptop..it will simply fail and say no drivers installed. Whe it is seen by the pc its telling me the Quallcomm driver are not there. It was such an issue that when I went to flash back to stock the computer wouldnt recognize it and I had to set up a second pc to flash back.
Seems windows has decided that it is a Qualcomm HSUSB device and wont mount on the second laptop now.
Does your phone power on? When people are hard brickdb thats the same thing thay happens
nah its up and running fine.
In that case very strange. Did u try deleting your drivers. Restarting your pc then installing kies?: it has the drivers you need
I had this problem before, what I had to do was remove any evidence of any Samsung Drivers on my PC, uninstall Kies. Then reinstall Kies, and keep it open while you connect your phone. That worked me, hope it works for you?
did you go as far as deleting everything from the registry? Ill do it Monday when I get to work as I didn't try the re installing on kies. Just odd.
No love and now same issue on two laptops. I have removed drivers and kies and tried reinstalling kies..removing installing drivers. What I AM seeing is
Even ID 5038 in the security logs
Code integrity determined that the image hash of a file is not valid. The file could be corrupt due to unauthorized modification or the invalid hash could indicate a potential disk device error.
File Name: \Device\HarddiskVolume2\Windows\System32\FsUsbExDisk.Sys
Other devices plug up to both laptops just fine??
i had something like this happen. and i had to remove all samsung drivers and and went into device manager and unistalled any updates. rebooted. ran the samsung drivers again. then rebooted. and it worked.
the other time this happened, i did the same procedure with the rebooting and installed keys and rebooted and left kies open while pluging it in (with a pc internet connection) and it searched and found the drivers online.
if you have tried both of those then im out of ideas.
hope it gets resloved.
I actually rebuilt an entire system to test it out..I have it working on it but its still not recognizing %100. Ill keep banging on it between user calls

HELP! Can't connect to PC

Hi guys, i'm getting this problem and cant connect to pc and i think i've tried it all.
when i connect my phone to the PC, it stars charging but my pc doesn't recognize the device, and my phone doesn't show the notification to make it file transfer.
Could it be a computer issue?
it seems not, i've uninstalled and installed drivers (ADB and Fastboot, oneplus drivers, google drivers) and the problem persist, and even try it on another computer and its the same, the phone does not appear even on Device Manager.
Could it be the Cable?
I don't think so, i'm using the original oneplus cable, it use to work really well before, and i have even connect other phone with the same cable and the other phone is recognize by the computer, so it''s not a cable issue... but I still when to a Tech-store and try other USB-C cables with their computer but my issue still persist (phone isn't recognize, just charge).
Could it be a phone software issue?
Maybe? but i discover this issue 3 weeks ago and a i was on EVOX rom and i thought it would be solved flashing another rom, and i CLEAN FLASH Resurrection Remix Rom, but then the problem was still there!
cant connect even on FASTBOOT MODE...
BTW, before installing RR, i Installed OOS 10.3.4, and still my computer doesnt recognize the phone, YES i have enabled developer options and USB debugging is enabled, and USB PREFERENCES to File transfer, but its not helping me, the "usb for" option its all grayed out and cant change that.
Right now i'm stuck on a RR build without Gapps, and i lost ROOT and RECOVERY, and as you may think, i cant install any of them because i cant connect to my pc, so i'm in a pretty difficult situation here hehe, could you please help me out?
This helped me. Hope it works for you too
I can't paste the link but search "how to get your Android device to show up in file explorer" by how to geek.
Didn't work
xnruaa said:
I can't paste the link but search "how to get your Android device to show up in file explorer" by how to geek.
Click to expand...
Click to collapse
Thanks for your reply, but this didn't work because my device isn't shown on device & printers, or anywhere as far as i checked...
PROBLEM SOLVED.
I think this is the silliest solution I've ever seen, it was just DUST, i clean my USB-C PORT (with a mask xD) and then pluggin, AND VOILA, it worked!!! so keep your ports clean everyone

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