On my PC I have a few USB ports, and I am not sure but some of them may be only USB1.
Using the cable that came with the N7, I can connect to any of my PC's ports in MTP mode.
Using another slightly older micro-USB cable that I have (but quality - it came with the Nexus S 4G), it works fine on one port, but on the other two it causes Windows explorer to lock up every time, and even after it's removed and Windows recovered, my USB keyboard doesn't work until I unplug/replug it.
Any theories on why this is? I tested many times, same results consistently.
Related
For those who had problems with their Kies or Windows not recognizing their S3 or find that copying your files using the MTP device mode slow, change your USB cable. I had problems rooting my Rogers G3, copying files to my computer was impossible and when I connect my G3 to a Vista desktop computer, I get the error USB device not recognized (code 10). Then I remember I have no problems with my Win7 laptop. The only difference was the USB cable. I use the same cable on the Win7 laptop and Wahla! Everything worked beautifully!
You would think there is no difference in a regular USB cable but it does. Hope this helps those having those nightmares trying to connect their phones to Kies.
Well.... i could see maybe if your USB cable was damaged somehow that it was hindering functionality... or was just a crappy USB cable to begin with.... but USB is USB. Pin layouts haven't changed.... nor has the wiring layout for USB cables changed. Yes, we have three different classes of USB now... but as far as i'm aware, it's only the USB controllers that are different, not the cables that are used. If they changed the cables, then i don't think that there would be a possibility of pretty much universal backwards compatibility between all versions of USB. I've used my S3's micro-USB cable... my old Motorola Atrix 4G's micro-USB cable... hell, even the micro-USB cable used to charge my Logitech mouse... never had a problem with any of them. Soooo.... a damaged cable is the only thing i can think of that would have caused issues with it not recognizing the device.
I thought the same. This 'damaged' usb cable is from my Samsung Vibrant. It still works with my Vibrant. How do you explain that?
Anyway, just trying to help.
Didn't help me either unfortunately. My laptop works fine but have the problem on my desktop. Setup my parents Galaxy S III with its new cable and had the same problem. Luckily I found that I can use the USB 3.0 port as a workaround...
Just got a brand new Samsung Galaxy SII T989 from T-Mobile this week, it really is a great phone, only I have a single problem.
The phone charges, it functions properly generally speaking (calls, texts, camera, wi-fi,etc...) but as soon as I connect it to my computer it freaks out.
It acts as if I were disconnecting and reconnecting the USB cable 2 times a second. I can hear the phone making the beeping sound it makes once you connect it to the USB every few seconds and in my computer (Which is running Windows 8 x64, just in case.) I can see the "Safely remove hardware symbol pop up and disappear a few times a second as well.
This is really frustrating... I love to take pictures and videos and edit them... I'd also love to copy some music over as well...
So far I've determined it can be the cable, bad drivers, or the phone itself, I just hope it's one of the first two.
Slash837 said:
Just got a brand new Samsung Galaxy SII T989 from T-Mobile this week, it really is a great phone, only I have a single problem.
The phone charges, it functions properly generally speaking (calls, texts, camera, wi-fi,etc...) but as soon as I connect it to my computer it freaks out.
It acts as if I were disconnecting and reconnecting the USB cable 2 times a second. I can hear the phone making the beeping sound it makes once you connect it to the USB every few seconds and in my computer (Which is running Windows 8 x64, just in case.) I can see the "Safely remove hardware symbol pop up and disappear a few times a second as well.
This is really frustrating... I love to take pictures and videos and edit them... I'd also love to copy some music over as well...
So far I've determined it can be the cable, bad drivers, or the phone itself, I just hope it's one of the first two.
Click to expand...
Click to collapse
Try re installing the correct drivers or switching the usb hub. If that does not work it's most likely the usb cable, swap it for a different one and you should be fine considering you bought the phone new.
Or you got a phone with a bad motherboard which would be crazy considering its new but that kinda sounds like the problem I had
Sent from my SAMSUNG-SGH-T989 using xda premium
imanoobfml said:
Try re installing the correct drivers or switching the usb hub. If that does not work it's most likely the usb cable, swap it for a different one and you should be fine considering you bought the phone new.
Click to expand...
Click to collapse
Alright cool, but how does one find currently installed drivers when the device isn't plugged in?
Slash837 said:
Just got a brand new Samsung Galaxy SII T989 from T-Mobile this week, it really is a great phone, only I have a single problem.
The phone charges, it functions properly generally speaking (calls, texts, camera, wi-fi,etc...) but as soon as I connect it to my computer it freaks out.
It acts as if I were disconnecting and reconnecting the USB cable 2 times a second. I can hear the phone making the beeping sound it makes once you connect it to the USB every few seconds and in my computer (Which is running Windows 8 x64, just in case.) I can see the "Safely remove hardware symbol pop up and disappear a few times a second as well.
This is really frustrating... I love to take pictures and videos and edit them... I'd also love to copy some music over as well...
So far I've determined it can be the cable, bad drivers, or the phone itself, I just hope it's one of the first two.
Click to expand...
Click to collapse
Ok, does it get better or worse if you hold the cable with your finger when it is plugged in to the computer and phone and move it around a bit on the phone end? If so, I even got a Nexus 7 brand new from Google that the charge cable phone end was bad and would not make a good connect and I had to use a different cable and it works fine with my tablet.
If you use the same cable in your AC charger and on the computer then prolly not the cable.
It could be something in Win8 if it is trying to scan your USB port [like maybe a whacked anti-virus].
Have you tried a different USB port on your computer to see if maybe the one you were trying to use is bad itself?
If using a USB hub between your computer and the phone try removing the hub from the equation and connect directly to the computers USB port.
RealPariah said:
Ok, does it get better or worse if you hold the cable with your finger when it is plugged in to the computer and phone and move it around a bit on the phone end? If so, I even got a Nexus 7 brand new from Google that the charge cable phone end was bad and would not make a good connect and I had to use a different cable and it works fine with my tablet.
If you use the same cable in your AC charger and on the computer then prolly not the cable.
It could be something in Win8 if it is trying to scan your USB port [like maybe a whacked anti-virus].
Have you tried a different USB port on your computer to see if maybe the one you were trying to use is bad itself?
If using a USB hub between your computer and the phone try removing the hub from the equation and connect directly to the computers USB port.
Click to expand...
Click to collapse
I am using a HUB on a Razer Keyboard that I've always used BUT now that you mention it my webcam had the same problem. It wouldn't work with the HUB on the keyboard. I'll try another USB slot (My computer's other USB slots aren't very accessible which is why I've hesitated to try another slot.)
I don't use anti-virus and yes, the cable works perfectly fine on the AC USB to Power adapter it brings.
RealPariah said:
Ok, does it get better or worse if you hold the cable with your finger when it is plugged in to the computer and phone and move it around a bit on the phone end? If so, I even got a Nexus 7 brand new from Google that the charge cable phone end was bad and would not make a good connect and I had to use a different cable and it works fine with my tablet.
If you use the same cable in your AC charger and on the computer then prolly not the cable.
It could be something in Win8 if it is trying to scan your USB port [like maybe a whacked anti-virus].
Have you tried a different USB port on your computer to see if maybe the one you were trying to use is bad itself?
If using a USB hub between your computer and the phone try removing the hub from the equation and connect directly to the computers USB port.
Click to expand...
Click to collapse
I love you. It worked. It's the USB hub which doesn't allow much power to go through to the connected device. Thank yo so much.
I'm not able to get to the bootloader screen because the front usb port is not functioning on my unit. Has anyone been able to use one of the USB ports on the back to get to ADB and/or get to the bootloader? Is this a known issue with a workaround? I've done quite a bit of searching and have not turned up any solutions. Considering what is involved in shipping this back, I'd much rather figure something out. Thanks in advance for any help!
Edit: I should mention that I have used the adbon password and it does acknowledge that adb has been enabled. Just nothing seems to work on the front port. When I connect my Linux machine and run lsusb nothing shows for the unit. I have considered buying or making a USB-A to USB-A cable to connect my computer to one of the back USB ports, but I'm concerned about how these back USB ports are designed. Is it as simple as a built-in OTG cable? If so I'm probably fine. If it is more like a computer's USB port I could damage my laptop, my headunit, or both. I'd really like to hear if anyone else has had to deal with this. Unfortunately I haven't verified if the front USB will charge a phone. This is my next step.
dutchhome said:
I'm not able to get to the bootloader screen because the front usb port is not functioning on my unit. Has anyone been able to use one of the USB ports on the back to get to ADB and/or get to the bootloader? Is this a known issue with a workaround? I've done quite a bit of searching and have not turned up any solutions. Considering what is involved in shipping this back, I'd much rather figure something out. Thanks in advance for any help!
Edit: I should mention that I have used the adbon password and it does acknowledge that adb has been enabled. Just nothing seems to work on the front port. When I connect my Linux machine and run lsusb nothing shows for the unit. I have considered buying or making a USB-A to USB-A cable to connect my computer to one of the back USB ports, but I'm concerned about how these back USB ports are designed. Is it as simple as a built-in OTG cable? If so I'm probably fine. If it is more like a computer's USB port I could damage my laptop, my headunit, or both. I'd really like to hear if anyone else has had to deal with this. Unfortunately I haven't verified if the front USB will charge a phone. This is my next step.
Click to expand...
Click to collapse
My front USB also doesn't work. I even got mini to standard USB cable with unit, but plugging flash drive into it doesn't produce any reslt.
I also plugged extension cable to one of back USB ports and tried it (plugibg same USB flash) but it doesn't work either.
So I'm also confused.
Does that mean you are still running the stock ROM? I have been hesitant to install the custom ROM because they say you must be able to get into the bootloader even though I couldn't find a step in the process that required it.
Regarding the USB ports not working at all, you may find that you need to use a powered USB hub. I've seen reports of USB devices acting up due to the low power. This is one of the reasons I thought it might be safe to use the rear ports with my computer. (My first real test is going to be mangling a male-to-male USB cable so only the data lines are connected to see if I can get those rear USB ports to talk to the computer. I figure that way there is no chance of frying any circuits.. Each side already has its own power and I don't believe any signaling is sent via the power pins.)
On my unit (MTCB-KGL-V2.80), I have used a T-Mobile USB broadband modem successfully on the rear port, so I know rear ports are live. I did take it apart to see if something was obviously wrong with the front port, but nothing jumped out at me.
So I have a bit more information on my headunit. BTW, I have the BMW E46 model with MCU MTCB-KGL-V2.80.
On my system, both the front USB port and the rear 3G USB port are wired as device ports connected to an AU6258 USB controller (http://www.sunnyqi.com/upLoad/product/month_1403/201403162331285643.pdf). I don't remember exactly which USB ports they are connected to, but I believe the 3G port is connected to port 2 (pins 6 & 7) and the front USB port is connected to either ports 3 or 4 (pins 9 & 10 or 11 & 12 respectively). Nothing is connected to port 1 or to the upstream port. The other rear USB port is wired directly to the MTC_RK3188 board.
All three ports are wired with only four pins, so I'm concerned that none of them could work with the computer. The USB controller doesn't have USB ID pins, so does that mean that the 4 downstream ports are OTG and the upstream port is for a computer? Unfortunately I don't know the hardware side.
dutchhome said:
Does that mean you are still running the stock ROM? I have been hesitant to install the custom ROM because they say you must be able to get into the bootloader even though I couldn't find a step in the process that required it.
Regarding the USB ports not working at all, you may find that you need to use a powered USB hub. I've seen reports of USB devices acting up due to the low power. This is one of the reasons I thought it might be safe to use the rear ports with my computer. (My first real test is going to be mangling a male-to-male USB cable so only the data lines are connected to see if I can get those rear USB ports to talk to the computer. I figure that way there is no chance of frying any circuits.. Each side already has its own power and I don't believe any signaling is sent via the power pins.)
On my unit (MTCB-KGL-V2.80), I have used a T-Mobile USB broadband modem successfully on the rear port, so I know rear ports are live. I did take it apart to see if something was obviously wrong with the front port, but nothing jumped out at me.
Click to expand...
Click to collapse
No I flashed Malaysk ROM from GPS SD card. No problems. Just follow instruction. I had luck that I didn't need to recover from USB.
Did you tried with USB powered hub? I don't have one to try it myself.
RK3188 1024x600 front USB not working confirmed
pa.ko said:
My front USB also doesn't work. I even got mini to standard USB cable with unit, but plugging flash drive into it doesn't produce any reslt.
I also plugged extension cable to one of back USB ports and tried it (plugibg same USB flash) but it doesn't work either.
So I'm also confused.
Click to expand...
Click to collapse
I checked on my Linux workstation with
Code:
lsusb |wc -l
plugging and unplugging all three USB cables and the number did not change. BTW where did you use the "adbon" command? The only place that I could even try was at Settings > Factory Settings. Regards Flint
I can't figure this out... I have an ASRock Motherboard Motherboards Z370 EXTREME4 motherboard with a USB-C output on it and using Win10. I've tried using the P2XL USB-C to USB-C cord to connect my phone to the computer to transfer files. I get nothing that shows up on the phone, yet everything is updated and working on the computer.
Any ideas?
Also as a side note, I have a dozen or so regular USB-C cords. Only 1 actually works just connecting it to a USB port on the computer. Some don't recognize anything, some will recognize the phone and let me transfer files only to have it drop the connection and reconnect to the phone. The 1 cord that actually does work, works as expected. Also this same issue happened on my old PC as well. Only 1 cord works with this phone and everything is updated. I've tried other computers with same issue.
I've also noticed I can only charge my phone with a couple of 120v USB outlets. Lots of them won't charge my phone, even though the phone says it's charging.....just never gains any charge.
I have a pretty similar issue with a C to C connection using my Razer Blade. I have this happen with the OEM cable and a couple of non-OEM C to C cable. I can't remember ever having an issue with my HTC 10 using a C to C, or when I use a USB A to C cable with this phone. While I'm not entirely convinced it's not my USB C port on my laptop, more evidence points to it being my Pixel rather than the port.
It's not the biggest issue for me because it's not a constant hindrance and I can usually get any transfer to finish.
Think I've been down this road... No fix. No idea what is happening or why.
The only option I have is to use my 1 cord to transfer. I usually am transferring several gigs at a time. I never had this issue with same cords for my original pixel XL.
What gets me is I even has issues using us chargers even. They say it's charging but never gain any charge.
Kind of thinking my phone has been defective
Wiped it yesterday and tried again with the OEM USB-C to USB-C cable, no luck even recognizing the phone, even to charge. I did however use a USB-A to USB-C 3.0 cable that didn't ever work originally and it copy 15gb of music without an issue.
I'll keep testing, as well as test it on the chargers that didn't work previously. I will also contact ASRock as I believe possibly my motherboard's port for the C-to-C not to work with the phone. It's not the worst thing not being able to use it, as I'm happy I can finally transfer files at 3.0 speeds now! SO MUCH quicker copying files back onto the phone than when I pulled them off!
I have a USB OTG cable that I can use to connect USB devices like flash drives, keyboard etc. and that works fine, but for some reason my phone won't charge whilst the OTG cable is plugged in.
Am I missing some really obvious way of getting this to work? Is it software based? I'm rooted and running Lineage OS if that makes any difference. I've tried several different OTG cables, I've tried connecting to different power supplies, different USB cables, different outlets, I've tried going into developer debug settings - nothing seems to get it to charge and data at the same time.
I am also interested in the topic. Trying to run Octoprint for Android and charge at the same time. I bought an OTG Y cable and the problem is that the phone is either charging or communicating with the 3d printer. Never both at the same time. I've researched quite a bit on google and it turns out at least on some devices the required effect can be achieved but I haven't been able to find anything about huawei devices. It is most probably a software limitation.
The same problem but i have Samsung J5 2017, i have rooted device so there is option to modify system files
Gosh! Would love to get this working. Any news?