[Q] Nexus 7 wont connect to usb, charge when on, but usb-otg works

Mnorton1228 · Nov 28, 2012

Im aware that one or two other threads have been created with this same general question but one thing they didnt ask is what to do if you cant fix it?

As the thread topic states my Nexus 7 will not connect to my PC via USB (It is not seen at all, its not a driver issue I've tried). It will not charge when turned on but it was charging when turned off last night. When I checked this morning it said I had a full battery but after turning the tablet on it said I only had 60% battery. All the started happening after I charged it with a battery pack at work the other day because I forgot my charger at home (some people have had similar problems after using car chargers). It will let me connect a flash drive to it via USB-OTG. I have tried 3 different cables on 2 different PCs (One running Windows 7 and the other running Windows 8). I really dont know where to go for help anymore as Ive spent the past 2-3 days googling like a mad man trying to find an answer and noone seems to have one.

I would love for someone to really help me out and get some steps that could fix this, however, if its not fixable how do I RMA it? I cant lock the bootloader and I cant flash a factory image.

Groid · Nov 28, 2012

You say it is not a driver issue, but your symptoms indicate it is. I would start over with the removal and re-installation of the proper drivers.

Mnorton1228 · Nov 28, 2012

Groid said:
You say it is not a driver issue, but your symptoms indicate it is. I would start over with the removal and re-installation of the proper drivers.

I've uninstalled them. Every time I go to manually install them the guides always say to find where the nexus is and my nexus never shows up. If it was drivers it would still charge when its on. So how can drivers cause the tablet not to charge from the ac adapter?

dennyjones · Nov 28, 2012

Try Wugfresh's program. I had issues w/o it.

Sent from my SCH-I535 using Tapatalk 2

Mnorton1228 · Nov 28, 2012

dennyjones said:
Try Wugfresh's program. I had issues w/o it.

Sent from my SCH-I535 using Tapatalk 2

Thats the toolkit I have installed. Its also the "guide" I am following when it comes to drivers. I tried to see if I could make the nexus connect to the pc while in fastboot and nothing happened then either. Everything he says to do involves the PC actually seeing the nexus :/

Ive changed it from mtp to ptp, toggled debugging, went to different back ups, flashed a new rom, etc etc. I really feel like Ive tried just about everything. Someone mentioned in one thread about some specific code in the nexus being wrong and possibly changing it could fix it but I do not know how I would go about doing that.

Groid · Nov 28, 2012

I also originally used the Wugfresh toolkit and had problems getting the drivers installed properly on Win7-64. Ultimately, I think I installed pda.net on my computer and on the N7 and was able to connect after that. Haven't had a problem connecting since. Re-read some of the Wugfresh posts about driver problems. You should be able to get it sorted out.

Mnorton1228 · Nov 29, 2012

Groid said:
I also originally used the Wugfresh toolkit and had problems getting the drivers installed properly on Win7-64. Ultimately, I think I installed pda.net on my computer and on the N7 and was able to connect after that. Haven't had a problem connecting since. Re-read some of the Wugfresh posts about driver problems. You should be able to get it sorted out.

I sent you a PM but I really dont think this is an issue with drivers. I have been able to connect the N7 to my PC perfectly before the other day. Never a problem at all. Now I have uninstalled/reinstalled the drivers as best as I could (currently I have the samsung drivers because they are the only ones that will install without having to verify that the phone is connected via ADB and I had them left over from my Fiance's GNex so they have been here all along when the N7 was actually connecting).

The N7 is not connecting to the PC at all. It does not show up in device manager. You cannot make an ADB connection to it. It has already been rooted and it is running the latest version of Paranoid Android. On top of that the AC adapters will not charge the N7 while it is turned on. Its like the N7 turns away any usb connection other than a USB-OTG cable while it is on.

Also I really do appreciate the help. This has just been really frustrating for me.

malin · Jan 23, 2013

Hello,
Since yesterday, I have exactly same issue with my Nexus 7 3g.
Everything is working perfectly but computer doesn't see Nexus at all (nothig works Bootloader, ADB, MTP,PTP).
Charging is fine (looks like), USB HDDs, pendrives are working as before.
Reinstaling drivers, changing to PTP, switchin on/off USB debugging didn't help.

Checked : other Nexus connects to the computer without problems, so its not drivers issue.

I assume it happened after Nexus was connected to my car charger.

Does anybody have solution/fix for that ?

Unfortunately my Nexus comes from USA, can I RMA it in Europe ?

Groid · Jan 23, 2013

I feel badly for everyone having these issues. I feel very lucky I'm not having them. It sounds as if the microusb port may have been altered/damaged by certain kinds of connections, like the battery pack or car charger. I don't know why this would happen and my own car charger (Moto oem for my Bionic) has worked fine on the N7. I did pick up the usb cable attached to my pc one day and created a static shock to the connector. Since then, that bank of 4 usb ports will not show either my N7 or bionic, but my usb mouse, keyboard, and printer work with them. The other bank still works, as does the pci port expansion card and my front ports. If I do have a glitch with the pc connection, I restart both the computer and the N7 and then it works. Sorry I don't have a solution.

davidoff59 · Jan 23, 2013

I also assumed a damaged/fried USB post on the Nexus 7. There are 2 data lines and 2 power lines in the charging socket I think. If the power lines are damaged, usb otg may still be working. Its also tying in with the use of a power pack.

akwingnut · Aug 11, 2013

davidoff59 said:
I also assumed a damaged/fried USB post on the Nexus 7. There are 2 data lines and 2 power lines in the charging socket I think. If the power lines are damaged, usb otg may still be working. Its also tying in with the use of a power pack.

Have you tried switching between MTP and PTP and seeing if that works? If I used the PTP setting for the USB it shows up, I can then move files onto the PICTURE folder and once there move to another folder while using the Nexus.

-AkWingnut

akwingnut · Aug 11, 2013

Wow or strange should be more of the reply. I have done this before but it never worked. Thanks for the help. For anyone else needing help here is what I did. First opened the Nexus Tool Kit, then Full Driver Installation Guide, launched USBDeview, then - In particular look for devices with Vendor ID - "18d1" or... "04e8" - Simply right click these devices, and select the option to: - "Uninstall Selected Devices", final step unplugged the device and plugged it back in and it worked. Also MTP enabled USB Debug unchecked. Thanks again...

-AkWingnut

choybel · Aug 12, 2013

Tried this and haven't had any luck so far. I'm going to try pdanet or samsung drivers again later today and post results.

Sent from my Nexus 7 using xda app-developers app

xxut · Aug 16, 2013

Have exactly the same trouble. I'm with you guys. USB host works, no reaction in device manager. Did your nexus was unlocked? Rooted?

nintennuendo · Nov 13, 2014

xxut said:
Have exactly the same trouble. I'm with you guys. USB host works, no reaction in device manager. Did your nexus was unlocked? Rooted?

Bump!

I'm experiencing similar issues with my Nexus 5. This is the only thead I can find that has a similar problem. My Nexus 5 worked on SlimKat, I flashed stock L Preview, now my device won't charge when it is powered into the OS. Bootloader works fine and charges when turned off. I upgraded to 5.0 which came out today (Yay!) and the problem persists.

Have any of you lads or ladies had any updates?

xxut · Nov 13, 2014

nintennuendo said:
Bump!

I'm experiencing similar issues with my Nexus 5. This is the only thead I can find that has a similar problem. My Nexus 5 worked on SlimKat, I flashed stock L Preview, now my device won't charge when it is powered into the OS. Bootloader works fine and charges when turned off. I upgraded to 5.0 which came out today (Yay!) and the problem persists.

Have any of you lads or ladies had any updates?

In my case it was a hardware trouble. Fixed by motherboard replacing in official service centre.

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[Q] Nexus 7 wont connect to usb, charge when on, but usb-otg works

Mnorton1228

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Groid

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Mnorton1228

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dennyjones

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Mnorton1228

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Groid

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Mnorton1228

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malin

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Groid

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davidoff59

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akwingnut

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akwingnut

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choybel

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xxut

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nintennuendo

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xxut

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