Hi all,
I have problem with connecting my O2X to laptop.
When I connect phone to laptop phone start to charge, but USB connection is not recognized and no notification on phone (top left corner) is shown.
It was working once, but since then my phone was updated via OTA to V10e and then to V10f yesterday.
My phone is on stock.
I've seen on other forum that people had similar problem but I didn't found any solution.
I've tried different USB cables, different laptop (home and business - on both was working once before), unnistaling drivers and similar.
Please help!!!
Thank You.
I have the same problem and I still don't understand if it is hardware or software related.
In my case the usb sometimes stop working for a certain time, sometime a couple of hour, some time for a full day. After that magically start to work again.
I've tried every in my knowledge but without success.
You are not alone
Air_Mike said:
Hi all,
I have problem with connecting my O2X to laptop.
When I connect phone to laptop phone start to charge, but USB connection is not recognized and no notification on phone (top left corner) is shown.
It was working once, but since then my phone was updated via OTA to V10e and then to V10f yesterday.
My phone is on stock.
I've seen on other forum that people had similar problem but I didn't found any solution.
I've tried different USB cables, different laptop (home and business - on both was working once before), unnistaling drivers and similar.
Please help!!!
Thank You.
Click to expand...
Click to collapse
Using Topogigi 1.6 this exact thing hit me yesterday, I suddenly lost ADB-access (I was programming at the time, and suddenly couldn't upload the app to the phone anymore.) The "bug" top left had vanished, and no toggling of USB-debugging would turn it on again. I tried restoring froyo backups, tried wipe-install, didn't work. What finally solved it was to smartflash back to 10D. Very strange, I cannot find any logical reason for this behaviour, so it can only speculate it must be something illogical, like maybe overheating (wasn't overclocked.)
EDIT: Let me elaborate. When this happened I of course tried another cable, and what was extra weird was that it wouldn't even recognize a USB-connection, but it would charge. Plugging it back in the dock I normally use when programming would show a USB-connection, but no ADB. At first I was worried that perhaps the dock had pushed the pins in the socket too far in for the regular cable to get a connection. After smartflashing back to 10D though, both the dock and cable work as usual. So maybe, just maybe, a hot phone will expand certain areas around the usb-connection points either in the socket or on the motherboard. Again, just speculation. The usb-connection has worked fine since, using any cable.
Happened to me as well. In one day i can't connect my phone to the pc but after two weeks when i connected the o2x to a pc with vista the problem was vanished. I connected to my usual pc and the same it worked. let's hope that i will not have anymore this problem. It is possibility that your phone will revive i one day. good luck.
I think I may have solved this particular mystery, I'm now able to reproduce it at will, and get usb/adb functionality back.
It happens through a combination of ADB crashes/bugs on a computer and a usb-stack crash/error on the phone.
I can reproduce it by plugging in another phone/tablet on the computer (while still having the phone connected), installing/running something from eclipse on the other device, unplug and replug the o2x and then try to run/install something on it via ADB. This invariably leads to the ADB-icon (the status-bar bug-icon) disappearing, *and* it will lead to the phones USB not working on another computer, or even another port on the same computer.
Funny thing is, if I reboot the phone, and plug it back on the same computer, this instantly leads to the same behaviour. USB will only get recognized on the same port it was plugged in the last time, and ADB will still not get activated. Trying to connect to another computer *after* this will not work.
The solution is simply to reboot *both* the phone *and* the computer (or just kill adb I guess) before plugging in anything.
Plugging in the phone while *either* the PC *or* the phone is in this confused state will lead to both devices malfunctioning in the same way as before, which is why you cannot simply connect the phone to another PC. (Although unplugging the phone, rebooting it *before* plugging in to another computer should work.)
Thank You for info.
I just tried it but unfortunately it didn't work for me. I've tried restarting phone couple of times, plugin into different computers but phone still doesn't recognize usb connection (just charging).
I this the problem is in the phone and it maybe due to update to v10e and v10f.
Air_Mike said:
Thank You for info.
I just tried it but unfortunately it didn't work for me. I've tried restarting phone couple of times, plugin into different computers but phone still doesn't recognize usb connection (just charging).
I this the problem is in the phone and it maybe due to update to v10e and v10f.
Click to expand...
Click to collapse
Hm, okay, your problem may be of a different kind. I'm not entirely convinced yet, as you don't mention having rebooted any computer. So just to satisify my curiosity, do exactly these steps in the following order:
1) Unplug the phone from the computer.
2) Power down the computer
3) Power off the phone
4) Turn on your computer
5) Re-install the LG USB drivers
6) Turn on your phone
7) Connect the phone
If this doesn't work then you indeed have a completely different problem, and we're back to speculating.
TrymHansen said:
Using Topogigi 1.6 this exact thing hit me yesterday, I suddenly lost ADB-access (I was programming at the time, and suddenly couldn't upload the app to the phone anymore.) The "bug" top left had vanished, and no toggling of USB-debugging would turn it on again. I tried restoring froyo backups, tried wipe-install, didn't work. What finally solved it was to smartflash back to 10D. Very strange, I cannot find any logical reason for this behaviour, so it can only speculate it must be something illogical, like maybe overheating (wasn't overclocked.)
EDIT: Let me elaborate. When this happened I of course tried another cable, and what was extra weird was that it wouldn't even recognize a USB-connection, but it would charge. Plugging it back in the dock I normally use when programming would show a USB-connection, but no ADB. At first I was worried that perhaps the dock had pushed the pins in the socket too far in for the regular cable to get a connection. After smartflashing back to 10D though, both the dock and cable work as usual. So maybe, just maybe, a hot phone will expand certain areas around the usb-connection points either in the socket or on the motherboard. Again, just speculation. The usb-connection has worked fine since, using any cable.
Click to expand...
Click to collapse
Trym,
Does that mean you were able to smartflash despite having USB connectivity problems? I had these problems with my first O2X and after I flashed MCR I couldn't connect to USB at all. Luckily this was within the exchange period and I was given a replacement handset which hasn't had these issues but then I am still using stock 2.2
I did try all combinations of reboots on the phone and also driver installs etc on the problematic handset but nothing worked then.
mparack said:
Trym,
Does that mean you were able to smartflash despite having USB connectivity problems?
Click to expand...
Click to collapse
That's exactly what it means, yes. It's never been a hardware problem (luckily)
I had these problems with my first O2X and after I flashed MCR I couldn't connect to USB at all. Luckily this was within the exchange period and I was given a replacement handset which hasn't had these issues but then I am still using stock 2.2
I did try all combinations of reboots on the phone and also driver installs etc on the problematic handset but nothing worked then.
Click to expand...
Click to collapse
You may of course have had a genuine hardware fault, after all usb-sockets are among the first things to break on any phone. I thought my phone was a goner as well, until I discovered the things mentioned in my post. It's a really sneaky affair, it would be impossible not to assume the phone is broken the first time you experience it.
EDIT: Removed invalid assumption.
Just to report that I've tried everything, including connecting phone to computer on which my friend runs Nexus S with no problem and then connecting to computer on which my phone was never connected.
Is there easy way to revert to v10d (last version I know my usb connection worked)?
I don't want to experiment too much because this is my business phone.
Maybe I'll just wait for GB and V20e (I hope it will finally be released soon) and hope that this will resolve my problem, but until them I'm missing one of main functionality
What a waist, since I get the phone with all that fuzz about it, is nothing but problem after another: rebooting, battery drain, wifi problem, usb connection... whats next?
Air_Mike said:
Is there easy way to revert to v10d (last version I know my usb connection worked)?
Click to expand...
Click to collapse
Assuming your usb isn't actually broken, yes, it's pretty easy. Download 10D from here: http://forum.xda-developers.com/showthread.php?t=1035041
Instructions here: http://forum.xda-developers.com/showthread.php?t=1008070
NOTE: The instructions are for flashing baseband only. In addition to that, you also need to select the .bin file in "Ap bin"
Thanks, but links are broken.
Air_Mike said:
Thanks, but links are broken.
Click to expand...
Click to collapse
Indeed they are, were copied from another post I made, and XDA had truncated them.
1st one: http://forum.xda-developers.com/showthread.php?t=1035041
2nd one: http://forum.xda-developers.com/showthread.php?t=1008070 (this link is also at the bottom of the first post of the first link.)
Just to report that my USB connection suddenly stared to work again on both of my laptops (home and work).
I didn't do anything after I gave up weeks ago. Before that I've tried everything but with no success.
Air_Mike said:
Just to report that my USB connection suddenly stared to work again on both of my laptops (home and work).
I didn't do anything after I gave up weeks ago. Before that I've tried everything but with no success.
Click to expand...
Click to collapse
Weird. Glad you got it working.
Looking around on different LG Forums, as useless as they are, the support-people always gives the advice that you should take out the battery, and leave it out for five minues to "clear residual memory." (This, apparently, is the solution for any kind of problem with the phone ;-)) That's always sounded completely nuts to me, but that's the advice I'm going to give the next guy with usb problems ;-)
And another one bytes the dust.
That's ultra weird. one minute everything is just fine and on the other, USB is dead.
So, apart from the procedure TrymHansen gave us a few post back, there is no known solution/diagnose/whatever for this problem, right?
SmartFlash will not detect phone...
My post from other thread which was closed:
My optimus 2x is not detected when I plug it to my laptop via USB.
Turn on mass storage" in the phone does not appear, it's like I'm just plugging in into a wall charger.
It could connect just a few days before, same laptop, same drivers (LG mobile united drivers)
Have tried it with 3 different laptops, still can't connect (drivers are installed)
A google search reveals other people having the problem as well and unable to solve it.
Can't return it yet for warranty because superuser app is still there.
Originally, I rooted it using superoneclick. Can't unroot it in superoneclick since not detected in USB.
So i unrooted it using z4root (without a pc). It's now unrooted, however superuser app is still in the app drawer.
i believe mine can be detected from smartflash so maybe i can flash stock rom. will doing this remove superuser.apk?
fmartinezjr said:
i believe mine can be detected from smartflash so maybe i can flash stock rom. will doing this remove superuser.apk?
Click to expand...
Click to collapse
Yes it will.
So did you try to flash a stock rom and did solved your usb problem ?
I will try with a modaco rom next we.
lol, is this fixed or not?
ive had the same problem.. when my rom is totally chrashed, and usb is like stuck?
strange is, all the other usb devices (wifi dongle, not keybord mouse) stops working when i plug in my phone? also the phone does not see that there is an data cable in him so i cant mount my storage?
is this an warranty issue?
Related
When I connect my phone to the pc, I get no USB notification, and it doesn't charge while connected to the PC.
However, my tethering working which tells me that the USB cable is working....This happened after the CRC1 update. (I have wiped, but its still doing it)
Have you tried seeing if usb debugging is checked? Settings-->applications-->development. If all else fails try uninstalling and reinstalling the usb mass storage devicee.
What a horrible update.. in on thread to see if you find a fix for this
are you trying to use the android in usb mode? ive had a few times when my android isnt showing up so i go to the device manager and under usb i uninstalled the drivers for the mass stoage device, unplug my phone, replug it back in and let the computer install the drivers.
Just FYI, if your phone is rooted, you should NOT install OTA.... OTA's from T-Mo are disabled for a reason. You may have to go back down to RC29 if wipe, nandroid restore, or flashing don't work
Does anyone know how to block the ota thing fom continually popping up?
turboyo said:
Does anyone know how to block the ota thing fom continually popping up?
Click to expand...
Click to collapse
install the latest cyan which is based on the ota
No root :/ seriously scared to upgrade to this, peoples alarms not working, emails accounts deleted, phones not charging through computer, videos not being reconized it all sounds like a nightmare .. theres no way to permenantly say no to the update? how are some people runing1.0 firmware and not getting bugged
B-man007 said:
Just FYI, if your phone is rooted, you should NOT install OTA.... OTA's from T-Mo are disabled for a reason. You may have to go back down to RC29 if wipe, nandroid restore, or flashing don't work
Click to expand...
Click to collapse
Its not modded. I have an ADP. So I still recieve updates.
Have you tried seeing if usb debugging is checked? Settings-->applications-->development. If all else fails try uninstalling and reinstalling the usb mass storage devicee.
Click to expand...
Click to collapse
Yea, the weird part is that every now and then, I will get the my notification that its connected, and it will go away in 5-10 seconds...the debugging is checked. The notification is very random, however my phones tethering is still working great. Its very odd...I've tried 3 different USB cables and all 4 of my USB ports on my PC.
Wow...apparently it was a horrible coincidence, and I had 2 bad usb cables. I bought one home from my dads house, and it worked again....very strange.
Dredge said:
Its not modded. I have an ADP. So I still recieve updates.
Yea, the weird part is that every now and then, I will get the my notification that its connected, and it will go away in 5-10 seconds...the debugging is checked. The notification is very random, however my phones tethering is still working great. Its very odd...I've tried 3 different USB cables and all 4 of my USB ports on my PC.
Click to expand...
Click to collapse
It would be easier if you had that listed in your post
glad to see you got it to work.
I got up this morning and decided to sync some music over to my captivate. I was surprised when I started getting errors that the device was not recognized. After four hours of trying to get the phone to sync I put it back to as vanilla as I could and brought it to ATT. After trying a new cable and just about everything else the phone has been declared to be defective. My problem is how do I get this phone back to original without a usb connection. The phone is not recognized by Odin, ADB or anything else so as far as my knowledge goes I am out of ideas. The phone works fine other wise but I thought some of the brightest on here might be able to help. Any ideas guys?
Try a different USB port.
Mine only works in the back USB ports, but won't do **** in the front ones.
I probably should have been a little more clear. The port is defective on the phone. They can't even communicate with the phone at the AT&T store through the usb port with some reader. I am trying to get the phone back to resembling stock before i send it back for warranty.
Sent from my SAMSUNG-SGH-I897 using XDA App
Try downloading adbwireless from the market. It will allow you to use adb without a wired connection.
Sent from my SAMSUNG-SGH-I897 using XDA App
I have Windows 7 64x bit, and sometimes my connections seem dead, and I just uninstall and reinstall the drivers.
ADB wireless seems like your best bet right now
Thanks. Gave that a shot and I can connect to the phone. Now all I need to do is find the att apps.
try a factory reset and see if it recognizes your phone .
rsohne said:
I got up this morning and decided to sync some music over to my captivate. I was surprised when I started getting errors that the device was not recognized. After four hours of trying to get the phone to sync I put it back to as vanilla as I could and brought it to ATT. After trying a new cable and just about everything else the phone has been declared to be defective. My problem is how do I get this phone back to original without a usb connection. The phone is not recognized by Odin, ADB or anything else so as far as my knowledge goes I am out of ideas. The phone works fine other wise but I thought some of the brightest on here might be able to help. Any ideas guys?
Click to expand...
Click to collapse
Have you tried it on another computer?
Hi guys, I've had a look around the net and asked on other forums, but can't seem to find the answer to my problems, so someone recommended here.
Apologies, if this has already been covered, but I did have a search and couldn't find what I was looking for.
I think I have two problems, don't know if they are related, but don't think so.
Problem 1:
Got the Galaxy S for my daughter for Christmas. She has never been able to log in to the android marketplace. She was using the her google log in which wasn't a gmail account. Today I signed her up a gmail account, and tried again and got the following error message:
You don't have a network connection.
This could be a temporary problem or your phone may not be provisioned for data services. Please try again when connected to a mobile network, or connect to a wi-fi network. If the problem continues, call customer care.
Click to expand...
Click to collapse
The phone is definitely connected the net by wi-fi, which I have proved to be working correctly.
Problem 2:
To try and solve problem 1, I thought I would see if the firmware was up-to-date, however, I can't get the phone to connect to Kies. I have tried on two different laptops, one running Vista and one Windows 7. It seems to be saying it's some kind of driver problem. I have clicked on install drivers on Kies, but it makes no difference.
I have made sure the phone is selected Kies. I have also tried selecting mass storage and connecting through My Computer, but still it doesn't recognise the phone.
I believe the phone's firmware is out of date, as it is 2.1 update 1 and I believe 2.2 is available.
Apologies for the long post, can anybody help me to get Kies and marketplace working?
I am not interested in jailbreaking the phone, as it's for my daughter.
The phone is a contract phone, in the UK with orange. I have made sure orange safe guard is not active.
Thanks in advance, if you need anymore infor, i will try and supply it.
Any idea's?
Bump.
Can anybody help or is the best option to try a factory restore / take it back to the shop?
Well there is alot of tread that explain how you connect to kies.
If you can use internet then it should work.
Have you try to power of the phone and wait 5 minutes and then power it on?
**DamianGTO Steam kernel. 350MB Ram. 500HZ. ext2/jfs . js3 base**
I have got the market place working by doing a factory restore, but for the life of me, I can't get the phoned connected to Kies to do a firmware update.
I have tried on 4 different laptops.
1. Windows 7 Home Premium 64 bit.
2. Windows 7 Home Basic.
3. Windows Vista.
4. Windows XP.
and I can't get it to connect on any of them.
I have tried un-installing and re-installing Kies. I have tried using different usb wires and ports. Phone charges by usb when plugged in.
I have tried connecting the phone in both Kies mode and Mass Storage mode.
The error I keep getting seems to be a driver error:
Device Driver software was not successfully installed.
Please consult your device manufacturer for assistance in getting this device installed.
Bluetooth peripheral device - Driver not found
Click to expand...
Click to collapse
Looks like I'll need to take the phone back or ring Samsung.
just try to reconnect it
astralmaze05 said:
just try to reconnect it
Click to expand...
Click to collapse
Never thought of that.
p-2-b-a-a said:
Never thought of that.
Click to expand...
Click to collapse
tell me if that trick works
Are you using a USB hub? If so don't . Plug it straight into the rear USB of your computer.
Do you have Bluetooth active? Turn it off.
Are you using any other Home than the one it came with (the screen you see when you first turn it on)? Go back to the stock TW Launcher
In the Kies Tools menu click on Install Driver and then try again after it's finished.
Finally if it is still not connecting leave it plugged in and go into device manager. If the drivers show up there they should be listed as Samsung i9000 if I remember then right click and un-install drivers then unplug phone and plug it back in after a few moments.
Also use the cabel that did come with.the phone.
**DamianGTO Steam kernel. 350MB Ram. 500HZ. ext2/jfs . js3 base**
Hi guys,
I'm facing a weird problem. Hope someone could help me out.
Phone is One M7, Lollipop 5.0.2, windows 7-64bit.
To make it short and clear, here are the symptoms:
1- Shutdown always restarts phone, can't turn it off.
2-Phone not detected when connected to laptop, i tried all there is to try mentioned on XDA
3-When connected to Laptop, after some time, the USB icon in status bar appears and never gets off even after disconnecting from laptop, only goes away after restart.
I guess all the above are somehow related but can't find any of solutions working. I tried everything.
Drivers install-unistall-reinstall, USB prot cleaning, 5 cables and USB ports, safe mode on phone, malware scan on laptop, etc...
It used to work before, other phones get detected by laptop....now I'm stuck and can't do any thing through laptop connection....no ADB, no file transfer, no backup to laptop, nothing.
Does anybody have any idea of what more I could do? What's left is a factory reset that I am keeping as a last resorts, if it would help, because i don't want to lose my app data.
Appreciate any input from you guys.
Thanks.
accacc5 said:
Hi guys,
I'm facing a weird problem. Hope someone could help me out.
Phone is One M7, Lollipop 5.0.2, windows 7-64bit.
To make it short and clear, here are the symptoms:
1- Shutdown always restarts phone, can't turn it off.
2-Phone not detected when connected to laptop, i tried all there is to try mentioned on XDA
3-When connected to Laptop, after some time, the USB icon in status bar appears and never gets off even after disconnecting from laptop, only goes away after restart.
I guess all the above are somehow related but can't find any of solutions working. I tried everything.
Drivers install-unistall-reinstall, USB prot cleaning, 5 cables and USB ports, safe mode on phone, malware scan on laptop, etc...
It used to work before, other phones get detected by laptop....now I'm stuck and can't do any thing through laptop connection....no ADB, no file transfer, no backup to laptop, nothing.
Does anybody have any idea of what more I could do? What's left is a factory reset that I am keeping as a last resorts, if it would help, because i don't want to lose my app data.
Appreciate any input from you guys.
Thanks.
Click to expand...
Click to collapse
I would indeed try a factory reset and also try to turn off the phone from the bootloader
alray said:
I would indeed try a factory reset and also try to turn off the phone from the bootloader
Click to expand...
Click to collapse
Thanks Alray for your reply.
It doesn't turn off from bootloader also...it restarts !!
What's keeping me from the factory reset is that all backup apps that can make app data backup (Helium, or ADB backup command) require a pc connection.
So I'm kind of stuck here.
I hope that someone as experienced as yourself would have any ideas to try.
http://forum.xda-developers.com/htc-one/help/usb-connection-tried-t3138677/post61431393#post61431393
Sui77 said:
http://forum.xda-developers.com/htc-one/help/usb-connection-tried-t3138677/post61431393#post61431393
Click to expand...
Click to collapse
Thanks Sui77 for your help.
Although I never had battery or display changed (never sent to maintenance before at all), I will try to do what you mentioned.
I understand from the picture you posted that the screw driver is pointing to the loose cable connection, right?
Thanks again.
Hey folks,
So I have a completely unmodified, stock Canadian N920W8 on 6.0.1, and no matter what I do, I cant get it to be recognized by Odin on my Win10 or Heimdall on my Mac.
I've done everything I could think of. Different cables, different ports, even different computers. Reinstalled the USB drivers, everything.
Anyone have any ideas? My phone won't fast charge, and is lagging more and more. I can't even Odin back to stock because it won't recognize. Factory Reset just cleaned out everything but nothing has changed. OEM unlock and USB debugging on, it won't be seen by the computers.
Any help? It's past manufacturer warranty, but it's still a good phone and I don't wanna lose it.
ve6ay said:
Hey folks,
So I have a completely unmodified, stock Canadian N920W8 on 6.0.1, and no matter what I do, I cant get
Any help? It's past manufacturer warranty, but it's still a good phone and I don't wanna lose it.
Click to expand...
Click to collapse
Did you install the actual drivers or just the ones that Windows installs? I use the ones that Samsung smart switch installs and I have no issues. If it is not fast charging and your computer does not recognize the phone it may not matter what drivers you use.
I used the Samsung USB drivers for Mobile Phones from Canadian support page. And that's on a fairly fresh win 10 install, too.
ve6ay said:
I used the Samsung USB drivers for Mobile Phones from Canadian support page. And that's on a fairly fresh win 10 install, too.
Click to expand...
Click to collapse
If you can I would suggest installing smart switch and see if smart switch sees your phone.
CodeNameRedNeck said:
If you can I would suggest installing smart switch and see if smart switch sees your phone.
Click to expand...
Click to collapse
I tried it on the Mac, smart switch didn't see the phone booted up. Didn't get a chance to try it in Odin mode. I'll try that tonight. And also on the PC. Any other suggestions?
ve6ay said:
I tried it on the Mac, smart switch didn't see the phone booted up. Didn't get a chance to try it in Odin mode. I'll try that tonight. And also on the PC. Any other suggestions?
Click to expand...
Click to collapse
Unfortunately not. I was hoping smart switch would see it. I would not rule out a damaged USB port.
I hope not... this is way past warranty, and I wanted to flash the thing with Khongloi's new Nougat rom... if it won't be recognized, then I can't even back it up or re-flash it to stock. Which is not a good thing...
No other suggestions, @CodeNameRedNeck ? You've been a huge help otherwise.
ve6ay said:
I hope not... this is way past warranty, and I wanted to flash the thing with Khongloi's new Nougat rom... if it won't be recognized, then I can't even back it up or re-flash it to stock. Which is not a good thing...
No other suggestions, @CodeNameRedNeck ? You've been a huge help otherwise.
Click to expand...
Click to collapse
Just to be sure. Can you transfer files from your PC to your phone and vice versa? Do you have any USB 3.0 ports? My phone seems to work better on 3.0 but still works on other types. Do you still have the Samsung cable? I know you said you have tried other cables but I used to have two cables that would not do data.
I tried with a brand new from the box cable, into four different usb 2 ports on the Mac and 2 usb 3 ports on the windows 10 PC.
No luck with it even being recognized for file transfers either.
@ve6ay, I could be wrong but I would say you probably need a new port. You should be able to pick one up relatively cheap. Good luck.
That's my thought, too, and in that case, I'll forgo anything. The contract is up in October, and it got the OTA update to 7.0, so I'm okay with it for now. I'm not into opening up her phone (which hasn't even been rooted yet) to switch out a port that I'm not confident enough to switch out.
ve6ay said:
That's my thought, too, and in that case, I'll forgo anything. The contract is up in October, and it got the OTA update to 7.0, so I'm okay with it for now. I'm not into opening up her phone (which hasn't even been rooted yet) to switch out a port that I'm not confident enough to switch out.
Click to expand...
Click to collapse
Did you try going into Developer Options and then scrolling down until you see "USB Configuration" and setting it to MTP? Or open the dialing pad and enter *#0808# and then making sure it's set to MTP, ADB and then try again.. If that doesn't work then it really is your port connection and it's actually super easy to replace and cheap too! All you'd have to do is heat the back up so you can loosen the glue up and then slowly pry the back off and then remove like 16 screws(lol) and then at the bottom you just unscrew it and easily pull the thin connection out.. I've done it several times so far although trying not to break the back glass is super hard..
The back glass got shattered in a drop last summer. So that will probably be a problem. Like I said, new phone this fall, most likely the next Note series. Though I'm tempted to go with an Exynos variant from across the ocean.