I have a really weird problem. My computer won't recognize my SGS2 is connected to the computer at all. Meaning no notification sound, no device change in device manager, nor any prompt to install a new driver. I've tried in both MTP and Mass Storage. What's even weirder is that it detects the phone in Odin mode and even installs the correct drivers. I've tried just about everything I could think of, such as the following:
-Cleaning the microUSB port with alcohol & new tooth brush
-lifting the microUSB connector slightly
-Using a toothpick to try to pick out any residue in mUSB port.
-Connecting while TWLaucher is set as default
-Using Wireless & Network setting > USB utilities.
-Taking out the sim card and external microSD card and booting & rebooting it.
-Restoring the stock Firmware
-Different wires, including an untouched mUSB wire that came with the phone.
-Different computer that doesn't have Kies or the said drivers installed. (Still didn't make a notification sound or bring up the "new device" prompt)
I just want to make sure I tried everything possible before sending it in for repairs.
EDIT: Oh forgot to mention that I had other problems before getting to this one. About a week ago Car mode would always activate by itself constantly. Even during use. Also the phone would refuse to stay turned off. After booting down, the phone would turn off. However, after some random amount of time, the phone would turn on by itself. During that time, connecting the USB wouldn't keep charging the phone. The phone would go between connected and disconnected randomly. Sometime off and on multiple times with in seconds. Other times would charge for hours and randomly stop charging. I've gotten the phone to charge whenever its connected now by cleaning the port, but the computer still can't recognize it as a device. Also the screen will randomly turn on, plugged in or not, and I have to manually turn it off again. However, if I turn it off right away it seems to lock up. So I have to unlock the phone the press the power button again to lock and turn off the screen. Don't know if this information helps.
likwidsage said:
I have a really weird problem. My computer won't recognize my SGS2 is connected to the computer at all. Meaning no notification sound, no device change in device manager, nor any prompt to install a new driver. I've tried in both MTP and Mass Storage. What's even weirder is that it detects the phone in Odin mode and even installs the correct drivers. I've tried just about everything I could think of, such as the following:
-Cleaning the microUSB port with alcohol & new tooth brush
-lifting the microUSB connector slightly
-Using a toothpick to try to pick out any residue in mUSB port.
-Connecting while TWLaucher is set as default
-Using Wireless & Network setting > USB utilities.
-Taking out the sim card and external microSD card and booting & rebooting it.
-Restoring the stock Firmware
-Different wires, including an untouched mUSB wire that came with the phone.
-Different computer that doesn't have Kies or the said drivers installed. (Still didn't make a notification sound or bring up the "new device" prompt)
I just want to make sure I tried everything possible before sending it in for repairs.
Click to expand...
Click to collapse
Try another usb port, sometimes that helps or reinstall the usb drivers in Kies
Ignore, hadn't read all he'd tried.
Bump: Additional information.
Same problem here
I have exactly the same problem!!
My thought is that the USB connector get wet and stopped working properly. As fas as i know, USB connector is composed by 3 cables, one for charging, one for data transfer and another one to detect Car Dock.
It seems that Odin is using Car Dock cable (?¿?¿) instead of Data, so you can use Odin and not Data.
Also that would explain why car mode just kicks in by itself (short circuit between car cable and probably power cable).
I will also sent it to a SAT, since i tried everything via software....
I have the same problem. Try plugging into a mates laptop, see if it works on their one.
I have created a thread on this, check it out http://forum.xda-developers.com/showthread.php?t=1642998
Really don't understand this!
Mine is showing up sometimes.. :s little hit and miss
Sent from my GT-I9100 using xda premium
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Today i plugged my phone to the usb cable and instead of getting the usual connection option screen... nothing... The phone charges but no Data transfer. Did hard reset, still nothing.. now im stuck with the old firmware... any help plz?
might be the cable that you're using. i used before a cable that is not the original and the same thing happened to me, i.e. pc cannot recognize device.
Try Settings-->Other-->USB To Pc-->UNCHECK (enable faster data sync) this should help...
cable : original came with the phone (used to work up until b4 yesterday) also tried another micro usb cable that came with me N900 but still nothing.
I did the un-check "enable faster sync" still nothing
Did soft reset, hard reset using volume keys, and factory reset from phone setting itself. still nothing.. the phone charges.. but no data transfer.. its something to do with the phone because i tried multiple PC's the phone doesn't bring up the connection type option page
Epiclipto said:
Today i plugged my phone to the usb cable and instead of getting the usual connection option screen... nothing... The phone charges but no Data transfer. Did hard reset, still nothing.. now im stuck with the old firmware... any help plz?
Click to expand...
Click to collapse
Altho u have tried with diff PCs,try reinstalling MS Activesync on one PC.
did that too
when you make/recieve a call, does the loudspeaker come on?
nope everything is normal except no data transfer when connected to usb...
Epiclipto said:
did that too
Click to expand...
Click to collapse
Now pls chek whether USB2 is enabled in your PC Bios...
The cable used to work before, and I tried it on multiple PCs, how can it be that USB2 is diasbled?
Epiclipto said:
The cable used to work before, and I tried it on multiple PCs, how can it be that USB2 is diasbled?
Click to expand...
Click to collapse
No harm in checking.Infact i faced similar issue once and the USB2 was disabled.It took me an entire week to diagnose the problem.These PCs have got a mind of their own and do mischievous things on their own without our knowledge.
But since its not working on multiple PCs,i am not sure.We'll hav 2 wait 4 a solution i guess...
hmmmm.. would a full system format and re-install be possible? and would it fix it? (talking bout on the phone)
HELP, HELP
SAME PROBLEM WITH HTC2 T0MOBILE
even on the boot loader screen, it charges but no USB stuck on serial.
even when on sleep mode and plug the cable orange led is on but it didn't wake up for choose (active syn or stoeag memory)
PLEASE HELP
i can do nothing, HSPL or rom upgrade
the cable and the USB drivers are tested more than 100 times
Most horror problems I had with the USB sync have been down to not having the latest version fo Activesync from microsoft. Uninstall the old version thwen reboot - now download the 4.5 version which I think is the newest and last version they made (unless im out of date) and then reboot the machine, then connect up the phone - but not immediately after the machine has booted wait a couple on mins, Windows takes longer than it often appears to be ready to go. One your hard drive led flashing light has settled down it is probably time to try. Then see if it finds all the devices in your phone.
If it doesnt go into the control panel and double click system, hardware tab, then select device manager and see if there are any devices with a yellow sign with a "!" in them. If there are delete them and then unplug the phone and plug it back in again. It might get past some stuck things. If it doesnt see anything new on device manager theres a menu at the top and look for "scan for hardware changes" this gives teh device manager another look at what its got connected.
If that fails open up the USB section under in device manager - its got a little plus next to it, press that plus and it open up all the names of chips you have for your USB control on the pc's motherboard. Write down the numbers and go and get the correct up to date drivers for that type of USB and install them. Then try the process again. Sometimes deleting the USB drivers and just doing a "scan for hardware changes" again, will reset the USB drivers and start things working, however it can get tricky if your using USB mouse and Keyboard to select anything if you delete the USB, because thats what the KM/mouse relies on to control teh machine, so have a PS2 mouse plugged in if you can. If that fails I would suggest reinstalling windows as its probably knackered. It amazing how things start to work wonderfully on a fresh copy of windows.
I have been where you are! And tried every suggestion that was given here. It all came down to the cord. I actually went through 3 different cords before I found one that worked and found that by accident. I bought an external drive and that cord works. For whatever reason, that is the only cord that now works for me. I only use it for data transfers. i use the other cords for charging.
Hi guys. So a few days ago, my phone stopped connecting to my pc. It will beep on the computer and say it's unrecognized, and the phone itself does nothing. No usb connected, no battery charging. It does actually charge, just doesn't show it in lockscreen or the desktop icon. When I go into the battery under settings, it does say charging.
I have:
1. Used 5 different cables.
2. 3 different computers
3. Resintalled drivers.
4. This started out of nowhere on MIUI (2.3)(just had the phone connected a couple of days prior with no problems). Flashed ICS EX rom, ICS CM9 and ICS Slim...same thing on all...
5. Tried mount USB storage under CWM
The phone does not respond.
Any Ideas?
This may be a long shot, as you've done all the normal trouble-shooting I would have done. However, you didn't mention if the phone was set into USB Debugging or not? I know when I've had my phone set into that mode before my PC wouldn't properly recognize or transfer files back and forth.
If you didn't know, it's under the 'settings' menu and look for something related to Developer options. Enable it if it's disabled, or disable it if it's enabled. My phone has acted wonky a couple times with transferring files and I've had to play with that setting on more than 1 occasion. Hopefully that helps.
accordex said:
Hi guys. So a few days ago, my phone stopped connecting to my pc. It will beep on the computer and say it's unrecognized, and the phone itself does nothing. No usb connected, no battery charging. It does actually charge, just doesn't show it in lockscreen or the desktop icon. When I go into the battery under settings, it does say charging.
I have:
1. Used 5 different cables.
2. 3 different computers
3. Resintalled drivers.
4. This started out of nowhere on MIUI (2.3)(just had the phone connected a couple of days prior with no problems). Flashed ICS EX rom, ICS CM9 and ICS Slim...same thing on all...
5. Tried mount USB storage under CWM
The phone does not respond.
Any Ideas?
Click to expand...
Click to collapse
If you use the regular charger, does it work (for charging)?
If so, you might have the usb port in your phone broken, just for the data transfer...
Settings > Wireless and Networks > USB utilities > "Connect storage to PC" button > plug in USB cable
This used to work perfectly up until today, now it just doesn't work anymore and the "Connect USB cable to use mass storage" popup keeps showing even after I plug it in. I've tried on multiple computers and I tried restarting my phone, but nothing works.
rpimps said:
Settings > Wireless and Networks > USB utilities > "Connect storage to PC" button > plug in USB cable
This used to work perfectly up until today, now it just doesn't work anymore and the "Connect USB cable to use mass storage" popup keeps showing even after I plug it in. I've tried on multiple computers and I tried restarting my phone, but nothing works.
Click to expand...
Click to collapse
Thats one wierd proccess for getting USB storage man. most would just plug it in and pull the notification bar down to click the mass storage mode icon thing.
but if your not getting a connection, USB port could be toast.
Simple search would've showed that.
MotoMudder77 said:
Thats one wierd proccess for getting USB storage man. most would just plug it in and pull the notification bar down to click the mass storage mode icon thing.
but if your not getting a connection, USB port could be toast.
Simple search would've showed that.
Click to expand...
Click to collapse
Oh wow you're right, I just plugged in the charger and it doesn't charge. So phone is useless, throw it away?
It's strange that it worked fine up until today and then suddenly decided to break, even though the phone has just been sitting on my desk in my room. And it's only a few months old.
rpimps said:
Oh wow you're right, I just plugged in the charger and it doesn't charge. So phone is useless, throw it away?
It's strange that it worked fine up until today and then suddenly decided to break, even though the phone has just been sitting on my desk in my room. And it's only a few months old.
Click to expand...
Click to collapse
If you really have a fried USB port, send the phone back for a warranty replacement. If you don't have stock firmware on it, there are guides to return to stock - haven't specifically checked, but I believe it's possible to do this entirely without plugging in if you are already rooted.
dandrumheller said:
If you really have a fried USB port, send the phone back for a warranty replacement. If you don't have stock firmware on it, there are guides to return to stock - haven't specifically checked, but I believe it's possible to do this entirely without plugging in if you are already rooted.
Click to expand...
Click to collapse
I bought the phone on ebay though, would it still have warranty?
Is there a part I can buy to replace it myself? It's definitely a problem with just the USB port, because if I fiddle with the charger it starts charging if I hold it at a funny angle.
Some people have had success cleaning the usb port with alcohol. That might help but not if a wire or solder joint is broken. If you do try alcohol, don't use regular rubbing alcohol (70%), too much water (30%), get the better (90%) or even better (99%).
If you don't feel like fixing it yourself, you can settle for finding a battery charging dock and get an extra battery. Also, if you need to place files on your phone, use dropbox, Kies wirelessly, or take out your SD card and use an adapter.
I bought a new USB connector and it's working now.
im on stock 4.0.3 ics stock rooted and i can't find mass usb storage mode when i plug usb to phone to computer i just get options mtp which i do not use as it always says wpd error etc and camera. were is the mass usb storage option? ps if i click on "more" in wireless network settings phone freezes up and i have to take out battery.
ian619420 said:
im on stock 4.0.3 ics stock rooted and i can't find mass usb storage mode when i plug usb to phone to computer i just get options mtp which i do not use as it always says wpd error etc and camera. were is the mass usb storage option? ps if i click on "more" in wireless network settings phone freezes up and i have to take out battery.
Click to expand...
Click to collapse
In Android 4.0x systems (Ice Cream Sandwich) and above, Google introduced a new file transfer protocol called Media Transfer Protocol (MTP), which may be set by default. The problem with MTP is that, while Windows explorer can see it, there is no drive letter assigned, so programs like Pimlical can not see the phone's sdcard. The Android operating system still has the capability of USB Mass Storage protocol, which does assign drive letters, as has been the norm in all previous operating systems. It may be possible to set the phone to USB Mass Storage through phone settings. If it is not possible to set the phone to USB Mass Storage through phone settings, then it is possible to force USB Mass Storage.
This behavior is governed by the system property /data/property/persist.sys.usb.config. This is a text file containing a single string. The settings are "mass_storage,adb" or "mtp,adb". Since this is a system file, it is necessary for the phone to be rooted, and then this file can be edited using a root file explorer. Change the text in the file to mass_storage,adb (without spaces), save the file, and reboot the phone.
My lg g5 ls992 is not recognized by a computer when i plug it in. If I do something to make windows refresh the driver it shows usb device not recognized for a short time. Windows makes the connected sound and within 30 seconds makes the disconnected sound while it is still plugged in. My wife has the same phone and her works fine. I have tried everything, reinstall drivers, usb debugging, usb mode, factory reset. I even tried swapping the bottom module. Nothing is working.
Hi there, did you manage to get anywhere at last?
Cheers.
Hi,
I came across a charging problem recently (happened all of a sudden, no clue why it is happening). My phone(m2 max pro) charges only I turn it off, when turned on the USB connection is not even recognized.
So, the only way to charge my phone is to switch it off!. This appears to be not so very rare problem, there are few posts out there (with different phones) complaining the same problem, but no working solution yet.
Few things:
1. Current rom is Arrow OS(m2 max pro), Android Pie.
2. Restarting the phone with the charger connected helps. The USB will still not be recognized though, but the phone charges(although, it charges slowly, the lockscreen shows - "charging slowly").
But, If I later disconnect and reconnect the charger it won't charge anymore, I have to restart with charger connected again.
3. Tried cleaning the USB port, tried clean flashing the rom(even with a different one), did not work.
5. Tried moving/adjusting the pin in the USB port slightly (recommended in one of the posts), did not work. Although, I didn't fiddle around this much, afraid I might damage the pin/port, will try again.
6. Tried draining it off completely to 0% until it auto shuts off and then charge it until 100% (this was recommended in one of the posts), did not work.
7. Tried different USB cables and ports(including original charger and wall port), did not work. I don't think this is a problem with cables/port.
I still think this was some kind of software problem, I hoped clean flashing the rom will fix this but was surprised to see that it does not!. or is it a hardware problem?
Anyone has a fix for this or seeing same symptoms(If so, how did you get around this)?
Thank you.
This is fixed now, after caliberating the battery(with a rooted app)
-> Rooted the phone(installed magisk), wiped cache and rebooted.
-> Installed Battery caliberation app[ROOT] (https://play.google.com/store/apps/...ot.superthomaslab.batterycalibration&hl=en_IN) and caliberated the battery.
-> Did a reboot and the problem went away
I didn't even had to wait until 100% to caliberate the battery (but the app recommeds so)
[EDIT]
The problem came back after a while, now its kinda randomly happening, most of the times it seems to work fine.
But, then again, it only charges, it does not recognize USB connection(to PC, which I used to connect to successfully previously), I don't see the "touch for more usb options" notification either. A workaround to this is to change the default usb configuration(in developer tools) to a different one (I am switching between File transfer, No data transfer, PTP), but as soon as you disconnect and reconnect the problem resurfaces (you'll have to again switch the default usb configuration and then reconnect)
I am perplexed!, I thought this is clearly a software issue and I hoped it would go away if I clean flash rom (the exact same build which worked fine previously, also cleared everything including vendor partition and excluding external sd card)