OTG cable issue - Nexus 7 Q&A, Help & Troubleshooting

Hello
I have the following issue. I bought an otg cable and it was able to mount my flash and mouse the first two times. Since then, it only gives a kick start and both my mouse and flash drive are powered down after 3 seconds. I tried them separately. To summarise the problem my nexus 7 does not give enough power to its microusb to be efficiently running an external device or the software recognizes it improperly and shuts it down.The cable works, since its been tried on 2 other devices. Now I wasn't able to find a proper solution to the problem so I'm asking if someone's dealt with such an issue. Running a rooted stock android 4.2.1
Sent from my Nexus 7 using xda app-developers app

You didn't mention which app you are using to be able to mount external storage. It requires Nexus Media Importer (paid app, read/stream only) or the free Stickmount (requires root, provides read/write/streaming). A mouse or keyboard will work without root or either app, but mounting storage requires an external app or a custom kernel with built-in support.

I am using stickmount, and I'm sure it would do its job if I get the devices power for more than 3 seconds
Sent from my Nexus 7 using xda app-developers app

Any new ideas, perhaps a custom kernel ? Any recommendations

Have you tried to see what the app "USB Host Diagnostics" tells you when you try to mount?
It's from the same maker as stickymount, maybe that will give you some better insight at what's happening.
I would include a link but since I'm new on this forum it won't let me yet.

rockhopperpenguin said:
Have you tried to see what the app "USB Host Diagnostics" tells you when you try to mount?
It's from the same maker as stickymount, maybe that will give you some better insight at what's happening.
I would include a link but since I'm new on this forum it won't let me yet.
Click to expand...
Click to collapse
Hello there, yes I have tried it several times, but it could not discover any attached devices, since, as mentioned, the power to the external devices is cut off 3 seconds after the physical insertion. Said devices aren't powered, that's what bugs me. If somehow electricity reaches them, I would be somewhat relieved since the problem would apparently be from the os or software. Right now I cannot get power to the devices, that's why I cannot do any diagnostics. Any ideas on why that might be ?

I would try another OTG-usb cable. Perhaps yours is just enough out of spec it worked at first, but now fails, or it may have been damaged after the first uses. Maybe static shock or it got bent or something. I got one through Amazon delivered to me from Hong Kong for 65 cents (including shipping). It took 17 days to receive, but it works great. I don't know how they can make any money like that, but I'm happy.

Related

3.1 & USB Peripherals

I know that 3.1 added support for a broader spectrum of USB devices, and I thought it would be interesting to compile a list of what works and doesn't work!
So far, I've tried:
ACER LIQUID E - Basically just charges the phone and allows for tethering (wish I could mount it) **UPDATE** After rooting and installing busybox and drive mount, Liquid E is able to mount! (Thanks, entropy)
HP WIRELESS MINI KEYBOARD (Model #U10G) - Works flawlessly! Prior to the update, only the keyboard worked, but now the mouse works too, as expected!
SONY CYBERSHOT (Model #DSC-W55) - At first the Iconia didn't detect it, but after I went into the camera menu and changed USB connect mode from "auto" to "mass storage" and plugged it back into the tablet, the Gallery app opened automatically and the pics from the camera magically appeared! Woohoo!
LOGITECH ATTACK 3 JOYSTICK - Not too useful, but it works! Basically it works as a glorified mouse, scrolling up/down/left/right. Pretty basic for now, but perhaps a good flight simulator will come out in the future?
SAMSUNG STORY STATION 1 TB HARD DRIVE - My biggest disappointment... I know there are workarounds to get external drives to work, but I was hoping 3.1 would provide a fix for this. It is formatted FAT32, so I'm not sure what the problem is, but my Iconia isn't picking it up **UPDATE** After rooting and installing busybox and drive mount, Story Station is able to mount! (Thanks, entropy)
I can confirm the iphone 3gs will charge and you can import photos/movies taken on the camera.
I have a cannon camera at home. I know they have a strange interface which always requires me to load a separate driver in windows. I will test it later and let you know.
vanisleguy1976 said:
SAMSUNG STORY STATION 1 TB HARD DRIVE - My biggest disappointment... I know there are workarounds to get external drives to work, but I was hoping 3.1 would provide a fix for this. It is formatted FAT32, so I'm not sure what the problem is, but my Iconia isn't picking it up
Click to expand...
Click to collapse
Assuming you are rooted - try "drive mount" (free from market) - solved all my USB storage device problems.
entropy.of.avarice said:
Assuming you are rooted - try "drive mount" (free from market) - solved all my USB storage device problems.
Click to expand...
Click to collapse
Thanks! I'll keep that in mind. I'm not currently rooted, but I'll likely take that plunge soon. I was hoping 3.1 would cure that in the stock software, but we can't always get what we want
pacificwing said:
I can confirm the iphone 3gs will charge and you can import photos/movies taken on the camera.
I have a cannon camera at home. I know they have a strange interface which always requires me to load a separate driver in windows. I will test it later and let you know.
Click to expand...
Click to collapse
How ironic that an iProduct will work as a peripheral, but not another Acer product!
*edit* Just tested my old BLACKBERRY CURVE 8310 and it mounts no problem! Wtf?
Thanks for the info!
vanisleguy1976 said:
Thanks! I'll keep that in mind. I'm not currently rooted, but I'll likely take that plunge soon. I was hoping 3.1 would cure that in the stock software, but we can't always get what we want
Thanks for the info!
Click to expand...
Click to collapse
Rooting stock 3.1 takes about ten seconds - i have successfully ran a Logitech laser mouse, a Saitek Eclipse 2 keyboard, a old crappy external 60gb USB hdd, and a 16gb flash stick all at once
Does a non powered usb hub work??
Sent from my XT720 using XDA App
vari9 said:
Does a non powered usb hub work??
Sent from my XT720 using XDA App
Click to expand...
Click to collapse
Using a non powered hub as I type - 4 devices connected, including a sweet keyboard with led back lighting (saitek eclipse 2) - all 4 devices work even if I am not connected to power.
Is there an * easy * way to make this tab use huwaei dongle for internet...???
Sent from my XT720 using XDA App
vari9 said:
Is there an easy way to make this tab use huwaei dongle for internet...???
Sent from my XT720 using XDA App
Click to expand...
Click to collapse
No idea - would probably involve a rooted device and a custom rom - head to the dev section.
Logitech mx510 and mx518 mice confirmed.
Xbox 360 wired controller works but found no games that use it and it is very clunky for nav'ing the UI in general.
Wacom Bamboo powers but nothing functions.
Sent from my A500 using XDA Premium App
Is there a safe way of removing these usb devices without having to power down?
peejayw said:
Is there a safe way of removing these usb devices without having to power down?
Click to expand...
Click to collapse
A "safe" way? I'm pretty sure it won't explode if you just unplug them.
In all seriousness, you should be able to just unplug them without losing data. At least I always have.
Correct me if I'm wrong, but the reason you have to "eject" removable media from windows is because windows has some sort of drive caching to speed things up. This means that just because you have copied a file to your usb drive, doesn't mean the data has actually been written right away.
Furthermore, Windows also locks out files that are in use by an active application. As such, windows makes you "eject" the media in order to give the OS a chance to check to see if any of the files are still in use, to avoid the application having a brain fart and crashing. Also, if an application is in the process of writing to a file and you yank out the drive, the file could become corrupt.
I think both scenarios are not likely to occur on an Android tablet, mainly because its based on a real operating system not designed to treat you like an idiot. Just make sure none of the data is being used by any open apps and you should be fine.
That being said, always make sure to keep backups.
Cheers,
-PW
Anyone able to use an Xbox 360 controller. I have a wireless with PC USB dongle, would like to use it if I possible.
Just want to say i can see my files in my x10 mounting it with drive mount and view it with file expert
entropy.of.avarice said:
Rooting stock 3.1 takes about ten seconds - i have successfully ran a Logitech laser mouse, a Saitek Eclipse 2 keyboard, a old crappy external 60gb USB hdd, and a 16gb flash stick all at once
Click to expand...
Click to collapse
Thanks! After rooting, installing busybox, and Drive mount, I now am able to mount my phone and external hard drive!
vanisleguy1976 said:
Thanks! After rooting, installing busybox, and Drive mount, I now am able to mount my phone and external hard drive!
Click to expand...
Click to collapse
Yay! Glad it worked for you. Enjoy!

Nexus 7 not recognised when connected via USB

Hi everyone,
My Nexus 7 at present isn't getting recognised when connected to a PC via USB. This was working the other week (the drivers were installed the first time I connected it via USB), but now when I connect it to a PC via USB the device isn't recognised by the PC.
I have tried this on multiple PC's and the same thing happens on all of them, so it must be something with the Nexus 7 that is causing the problem.
If I go into Device Manager on any of the PC's, with the Nexus 7 connected via USB it doesn't appear anywhere, so I can't go down the route of even updating the USB drivers as suggested for some similar issues on other threads.
I have even installed the Android SDK and installed the Windows USB driver package, but that hasn't done the trick either.
I have also tried installing the Microsoft MTP porting kit, but again this made no difference and the same can be said by switching between MTP and PTP mode and neither have made a difference. I don't have USB debugging enabled, enabling it doesn't make a difference either.
I can connect my Nexus S phone via USB without issue to any of the PC's I've tested the Nexus 7 on, which further backs my thinking of the issue being with the Nexus 7.
I'm running out of ideas, so thought I would throw it out there to see if anyone has any other suggestions before I do a factory reset on the Nexus 7.
Any suggestions will be greatly appreciated.
Further to this I have done a factory reset, which has made no difference.
Any ideas other than going back to Google or Asus?
my N7 has trouble being recognized by different PCs. it is hit and miss. will your N7 charge when it's connected to a PC that doesn't recognize it? my N7 does not show the charging symbol on screen, but the battery percentage increases over time.
Also try a different cable just in case.
Sent from my Nexus 7 using Tapatalk 2
HKSpeed said:
my N7 has trouble being recognized by different PCs. it is hit and miss. will your N7 charge when it's connected to a PC that doesn't recognize it? my N7 does not show the charging symbol on screen, but the battery percentage increases over time.
Click to expand...
Click to collapse
The N7 shows as charging when the USB cable is connected.
Shrink said:
Also try a different cable just in case.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
I've tried different cables, which makes no difference.
It's looking like a hardware fault of some sort as a factory reset made no difference. Think I will have no option to go back to Google/Asus
danox82 said:
The N7 shows as charging when the USB cable is connected.
I've tried different cables, which makes no difference.
It's looking like a hardware fault of some sort as a factory reset made no difference. Think I will have no option to go back to Google/Asus
Click to expand...
Click to collapse
Try connecting it as a PTP device rather than MTP.. (that sometimes works for me when I am trying to force it to pick up the ADB device and install driver etc). If it detects it as PTP change it back (to MTP), and hopefully it will be OK.
marky9074 said:
Try connecting it as a PTP device rather than MTP.. (that sometimes works for me when I am trying to force it to pick up the ADB device and install driver etc). If it detects it as PTP change it back (to MTP), and hopefully it will be OK.
Click to expand...
Click to collapse
I had already tried that, makes no difference unfortunately.
I had the same problem.
I knew it was driver issue but where to find the driver?? Looked on Asus' site and apparently the Nexus 7 is the Asus unwanted step-child. Not a mention of it there.
After a lot of looking and a lot of cursing,I found the answer! (It was the cursing that helped!) Install Windows Media Player v13. The needed driver is included. After a reboot, I was able to see the Nexus 7 on my PC and (more importantly) able to transfer files to it!
What happened
I have had the same problem with it not connecting. My n7 does charge when I plug it in but does not show up in my computer when i plug it in via usb. I have tried switching it to PTP mode but it does not find the device for what I'm doing(unlocking boot loader for my nexus 7) I hope someone can help greatly appreciated.
---------- Post added at 04:47 AM ---------- Previous post was at 04:27 AM ----------
rasputin1234 said:
I knew it was driver issue but where to find the driver?? Looked on Asus' site and apparently the Nexus 7 is the Asus unwanted step-child. Not a mention of it there.
After a lot of looking and a lot of cursing,I found the answer! (It was the cursing that helped!) Install Windows Media Player v13. The needed driver is included. After a reboot, I was able to see the Nexus 7 on my PC and (more importantly) able to transfer files to it!
Click to expand...
Click to collapse
Hi, my computer came with Windows Media Player on it. It does not specify the version. I cannot find Windows Media Player v13 anywhere. Would someone please provide a link if possible. Thank You So Much!
USB Connection To PC Not Detected
Having the same issue here. These two guys as well http://forum.xda-developers.com/showthread.php?t=1851868&highlight=usb+connected Did you also use a car charger? Don't know when it happened for me, but sometime between it last working and testing car chargers it stopped working. Same thing for me as one of the posters says, USB-OTG works, so I would think it's not a physical issue, but how to reset it. Dunno, Any help would be appreciated.
ADB, Fastboot, or USB Connected device in Windows does not work. Computer doesn't even detect, no USB connect sound.
UPDATE:
Installed Glazed Jellybean v.1.1.2 thinking it might clearup the issues with detection of USB and presenting it to the PC. Still same results, USB data connectivity is missing somehow. Just might be some sort of physical damage. Kernel was updated as well to Linaro Motley Kernel v1.1.1.
Help!
I had this happen after using a car charger from amazon. I actually really believe that the charger is the problem, as I had originally got the charger for my recently departed tf101, and after using the charger on that, same problem as what's happening with my n7. Sure, there's workarounds, but it'd be nice to connect to pc for faster transfers.
Sent from my Nexus 7 using xda app-developers app
Same As Above... This sucks.
I am having the exact same problems listed previously & I've tried almost all the same fix attempts with no luck. Like a couple others, mine worked out of the box, then I charged it in my car (using the Nexus 7 cable plugged in to a USB cigarette lighter adapter)... Now, nothing but the indication on the Nexus that it's charging. No indication at all that the computer is even aware a device is plugged in to it. Has anyone found anything? Please, Lord, say it's so!!
I found a fix
Whether this will work for everyone I am not sure.
I took the USB from the hub I was using & plugged it into one of the front ports on the actual tower unit. The drivers were reinstalled and everything is working again.
It may be the Nexus didn't like the hub or it may be that particular USB port threw a wobbler.
histrel said:
Whether this will work for everyone I am not sure.
I took the USB from the hub I was using & plugged it into one of the front ports on the actual tower unit. The drivers were reinstalled and everything is working again.
It may be the Nexus didn't like the hub or it may be that particular USB post threw a wobbler.
Click to expand...
Click to collapse
Thanks, but I've plugged my N7 in to 15+ usb ports on 3 different PCs & haven't gotten anywhere. No changes.
I did call ASUS support yesterday & was told by the tech support person that they were working on a "PC SYNC" software for the N7, but did not have a release date for it yet. I'm not very optimistic. The tech sounded like she could have been reading from a script. Didn't sound as if she knew what she was talking about. I may take my N7 back & get a replacement.
kevchaps said:
I had this happen after using a car charger from amazon. I actually really believe that the charger is the problem, as I had originally got the charger for my recently departed tf101, and after using the charger on that, same problem as what's happening with my n7. Sure, there's workarounds, but it'd be nice to connect to pc for faster transfers.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Hey, do you remember what charger you used? I tried two from Amazon, so I can't tell which one gave me the problems. Here they are:
Arcadia Rapiduo, 10W 5V/2A Dual Port high-speed USB car charger w/ Free Full Speed Micro-USB Charging Cable (IMP80C)
http://www.amazon.com/gp/product/B00845NI8E/ref=oh_details_o00_s00_i01
and
PowerGen Dual USB Port 2A 10w (fast) Heavy Duty Ouput Car Charger - White
http://www.amazon.com/gp/product/B00622AG6S/ref=oh_details_o01_s00_i00
Hell, if there are several of us that have damaged devices from these chargers maybe Amazon would help us to get our Nexus replaced.
dkhilo said:
Hey, do you remember what charger you used? I tried two from Amazon, so I can't tell which one gave me the problems. Here they are:
Arcadia Rapiduo, 10W 5V/2A Dual Port high-speed USB car charger w/ Free Full Speed Micro-USB Charging Cable (IMP80C)
http://www.amazon.com/gp/product/B00845NI8E/ref=oh_details_o00_s00_i01
and
PowerGen Dual USB Port 2A 10w (fast) Heavy Duty Ouput Car Charger - White
http://www.amazon.com/gp/product/B00622AG6S/ref=oh_details_o01_s00_i00
Hell, if there are several of us that have damaged devices from these chargers maybe Amazon would help us to get our Nexus replaced.
Click to expand...
Click to collapse
http://www.amazon.com/gp/product/B005L8Q4VU/ref=oh_details_o05_s00_i00
It was this one at first, then I complained it didn't work, and they sent one that could've come from their own car, the way it looked.
And yes, I know it says "for Asus tf101".
Perhaps there's a "safety switch" of some sort, written into the os, that "shuts down" the ability to communicate through usb after using these car chargers? That may sound stupid, i know.
I don't think it's a pc problem, since the n7 still charges when connected, and also, because this has happened twice to me, with both my tf101 and my n7,directly after using these car chargers.
And, for some reason, I don't believe it has caused hardware damage to the n7. I kind of believe what I said in the first paragraph. Maybe this will happen to a dev, and they will look into the problem.
I suppose rma is an option, but patience is not my strong point.
Sent from my Nexus 7 using xda app-developers app
I have 3 computers and 2 Nexus 7 in household, and one N7 has no problem being recognized by computers and the second N7 wont connect as a MTP device at all, on any computer, with many different cable and port combos. The second N7 was bought just a few days ago and I was not going to root and leave a virgin device, so it was essential to have access to sdcard with computer as storage device. Looks like I am taking it back for replacement...which is a shame because other than usb problem the second N7 was a perfect C70...my first N7 C70 has a minor screen lift, and after comparing the two tabs side by side, a slightly more washed out display.
kevchaps said:
Perhaps there's a "safety switch" of some sort, written into the os, that "shuts down" the ability to communicate through usb after using these car chargers? That may sound stupid, i know.
I don't think it's a pc problem, since the n7 still charges when connected, and also, because this has happened twice to me, with both my tf101 and my n7,directly after using these car chargers.
And, for some reason, I don't believe it has caused hardware damage to the n7. I kind of believe what I said in the first paragraph. Maybe this will happen to a dev, and they will look into the problem.
I suppose rma is an option, but patience is not my strong point.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
This was my thoughts as well, thought some of the system files were altered in someway by either that process or my installing usb related apps. USB OTG and USB monitoring apps specifically. However, I decided to try an load Glazed Jelly Bean hoping it would resolve this issue by rewriting the system files, but it was still broken. This has now changed from a connectivity issue to a totally dead unit for me, it slowly started refusing to give a full charge and now not even a response while plugged into an AC Charger.
dkhilo said:
This was my thoughts as well, thought some of the system files were altered in someway by either that process or my installing usb related apps. USB OTG and USB monitoring apps specifically. However, I decided to try an load Glazed Jelly Bean hoping it would resolve this issue by rewriting the system files, but it was still broken. This has now changed from a connectivity issue to a totally dead unit for me, it slowly started refusing to give a full charge and now not even a response while plugged into an AC Charger.
Click to expand...
Click to collapse
Sorry to hear about yours crapping out. Hopefully, mine doesn't take that route. Really want to root for sixaxis app.
Sent from my Nexus 7 using xda app-developers app

[Q] USB Host/OTG not working at all on my N7?

For some reason my Nexus 7 won't recognize any USB device I connect through an USB OTG cable.
I tried several USB-sticks and mice (which should work even without root) without success.
After reading through all related topics I found that most people fixed their problems by buying a different adapter so I went ahead and bought:
1. Micro USB HOST OTG cable adapter on the go for Google Nexus 7 - 7" Tablet ( 330805061387 ),
2. USB OTG On The Go HOST CABLE for Samsung ET-R205U i9100 Galaxy S2 Galaxy Note
and
3. another one that has no cable but the male micro USB plug attached directly to the female type A plug.
None of them work!
I am running PA 2.54 (obviously rooted), tried different kernels. I also did a full wipe and installed other roms that people reported working USB-OTG with, nothing.
I upgraded my bootloader (which has nothing to with it I think, but did it anyways) and tried CWM and now TWRP recovery.
TWRP has native USB-OTG support, but even at recovery level none of the cables/adapters work.
I even cut off some of the plastic coating on of the micro USB plugs as some people claimed they got their cable to work that way...
On my Galaxy Nexus all (!) adapters work flawlessly with all USB-Sticks and mice I tried. In Android and in TWRP recovery (same version as on my N7)
I just ordered another OTG adapter but I honestly don't expect that one to work either.
Now I am beginning to suspect that my N7 is not capable of USB Host mode or OTG at all. Is that even possible?
Charging and connection to my PC works fine though btw.
Has anyone had the same experience?
Any solutions?
I'm thankful for any tips!
You haven't mentioned using Stickmount or a similar app to mount your peripherals. Have you overlooked that step?
I'm not the lowest of the low, but I am the slowest of the slow. 49.6 mpg avg for 38k miles in non-hybrid Scion xB
+1 you need to use stockpiling thought mine was broken till I got that app and now works
Sent from my Nexus 7 using xda app-developers app
Yes, I have stickmount installed. And all other USB otg related apps on play store... No device found.
But as I said, it is not even working in twrp recovery so I suppose it is not android related but something is wrong with the hardware.
I mean it is possible I just got three incompatible otg cables but how can those be the wrong cables anyways? As they all work on my gnexus, they're not broken and USB otg just has pin 4 and 5 connected, so there is nothing special in them either...
Sent from my Nexus 7 using xda app-developers app
I have the same problem except it's with my Galaxy S3, the OTG cable works fine on my Nexus with stickmount pro, but even though my galaxy S3 recognises the external HD I cannot view any of my files
Sent from my Nexus 7 using xda app-developers app
At least your s3 recognizes the hd. My Nexus doesn't recognize any device I plug in. They don't even power up (optical mouse not blinking etc)
Sent from my Nexus 7 using xda app-developers app
Try a custom Rom if you're not already running one, on stock I couldn't even get WiFi Tethering to work never mind external HDD but since flashing liquid smooth ROM its been fine, pity wont work with my Galaxy S3
Sent from my Nexus 7 using xda app-developers app
Using Raspbean Jelly ROM and for me it will recognize my NTFS usb stick but it says it is empty which it is not.
Reeonimus said:
Using Raspbean Jelly ROM and for me it will recognize my NTFS usb stick but it says it is empty which it is not.
Click to expand...
Click to collapse
Are you using stickmount pro and did you download the ntfs files to /sdcard ?
How to put ntfs files to /sdcard?
i have the same problem with not mounting anyhting via ota cable. I have root and latest android 4.2.1, I tried all free android app for mounting and still cant mount anything.
I would love to keep stock rom if possible.
And is it possible to mount usb internet stick (huawei e3131a) with otg? That`s only thing I need.
Sent from my Nexus 7 using xda app-developers app
It's not the Nexus 7's problem . You have to be rooted, have an app like Stickmount to mount the peripherals, have the data in a recognized (EXT, FAT) format, use a compatible USB-OTG cable, and know where Stickmount et al mounts the peripheral.
If you do all that, you'll have full r/w access to your peripherals. I've downloaded photos from my camera's SD card to my N7 using a 4 way card reader, r/w data to/from a USB flash drive, connected to my PC, & attached a wireless keyboard's USB dongle.
I'm not the lowest of the low, but I am the slowest of the slow (49.6 mpg over 38k miles in Scion xB)
I recommend fat32 over fat. If you need support for files over 4Gb you will have to allow for ntfs support with a custom kernel unless Chainfire is getting support built into Stickmount.
I just bought another cable off Amazon which was labeled to work with the N7 and got 100% positive reviews from buyers.
Of course it doesn't work on my device. (works fine on my Galaxy Nexus again...)
Just tried to connect a USB mouse this time.
I installed SmoothRom and ParanoidAndroid on my Nexus 7 and it doesn't work on either. Stock Kernel, franco, bicked - nothing.
Giving up here.
I guess my Nexus just doesn't have OTG support for some reason.
Still thankful for any advice though
bumping the thread again
Hey bastlwastl,
just bumping this thread to ask you if you got any advances with your problem. I have the same problem too- the OTG cable i have works with my friends' Nexus 7, another's Xperia Z, and another's Xperia ** (forgot the model number). they instantly recognize the pendrives AND hard drives (they light up). All three of them aren't rooted or unlocked or anything - i tried it within fews days they made the purchases. So I also suspect this is a fault with MY nexus 7. Did you find anything regarding this?

[Q] Apoligies if repeat Q: will a usb hub work with Nexus 7?

I had read in some other random forum that if you have rooted your Nexus 7, which I have, and run app "StickMount" you can connect a usb thumb drive to the nexus and give yourself more space, even install apps to the USB drive to run from. I am wondering (and am going to test it out later this evening) if anyone has tried connecting a USB hub, so that you can have say 4 ports to add different drives or game controllers/whatever else and android will recognize the different devices?
As a realist, I'm just hoping the single USB stick connection will actually work as a storage expansion area, as we all know there is no micro SD slot. I actually have an old college friend I keep in touch with who works on the Nexus development team, who had no good answer as to why micro SD was removed, as well as the ability on devices with a micro SD no longer allow the installation of apps to the sd card. I was pretty convinced it was simply because the OEMs decided to name their internal memory /mnt/sdcard which used to be the external card's mount point name, but I'm told it is more complicated than that. Am I the only one that really feels like no apps to the SD in ICS or jellybean, is quite a downgrade? I understand we can use the "cloud" now ... but that's simply not the same, and surely not as fast as a local drive (maybe?) I then proceeded to yell at him to not let the group of stupid consumers influence the great features that the half-brained+ consumers know how to properly use, to no avail. Using the micro to full USB port to mount a thumb drive seemed to be the best way to add more storage locally. Thoughts? Thanks
- Herby
- Real-time embedded software developer going on 12 years, working in the satcom, medical device, aircraft display, and aerospace domains
NM - Just found app "USB Host controller" which does exactly what I asked Yayyyy!!
There are actually a whole slew of these that are even free, most require root however, which I recommend using the program with GUI interface developed specifically to unlock the bootloader, and then root the nexus 7. I think it was called Root_Toolbox or something like that. I am not at home or I would report back the official name. If anyone wants it just let me know. Thank you!
Herby6262 said:
I had read in some other random forum that if you have rooted your Nexus 7, which I have, and run app "StickMount" you can connect a usb thumb drive to the nexus and give yourself more space, even install apps to the USB drive to run from. I am wondering (and am going to test it out later this evening) if anyone has tried connecting a USB hub, so that you can have say 4 ports to add different drives or game controllers/whatever else and android will recognize the different devices?
Click to expand...
Click to collapse
A hub works great. I've had 3 flash sticks mounted at once along with a mouse and everything has worked without a hitch.
The caveat here is to ensure you're not pulling too much current - the OTG max current source spec is alot less than the 500mA a normal USB PC host port is able to source.

OTG - Is it possible? - Yes it is

Well I know its been talked about in the other threads of the possibilities. So now since we have the devices here, are proceeding with unlocking and rooting the devices. Has anyone had luck?
Sadly I do not have a OTG cable yet to test this but at least wanted to start somewhere.
Edit: Yes it is, see post below for link. Device needs to be rooted for it to work!
Says he was able, after root, to mount 2 drives simultaneously.
http://forum.xda-developers.com/showpost.php?p=43991406&postcount=9
Nburnes said:
Says he was able, after root, to mount 2 drives simultaneously.
http://forum.xda-developers.com/showpost.php?p=43991406&postcount=9
Click to expand...
Click to collapse
Brilliant! Thanks
Has anyone try this:
https://play.google.com/store/apps/details?id=com.homeysoft.nexususb.importer
It doesn't require root so it should be good for stock users.
I can confirm a stock non rooted N7 I threw in a USB flash drive and read files and played a movie real quick earlier just to see if it all worked, didn't try much more then that but can try some more tomorrow. Still busy transferring and reinstalling apps from old N7.
I cannot get Nexus Media Importer to work on stock. It reports all memory sticks as protected.
I have a non rooted stock nexus 7 2013. The media importer doesn't work for me also.
Sent from my Nexus 7 using xda app-developers app
Now rooted using Stickmount, still not working. The drive can be seen but it seems only small files can be viewed, and you can't copy them or do anything with them. Non of my, larger, movie files show up.
I was able to copy a 3GB movie file from a flashdrive to the onboard memory with no issues. Maybe try a powered USB hub? I didn't have to in this case but it might help.
I tried to read an external hard drive and had to use a powered USB hub to even have it mount. Alas, couldn't read anything. Don't know if it's because the hard drive was formatted NTFS or because it was 750GB.
USB OTG Helper works for me. It also supports NTFS drives.
Sent from my Nexus 7 using xda premium
Can anyone tell if it's possible to to use OTG while wireless charging the device?
Need this for my car dashboard tablet replacement.
I think the problem with that would be that it would drain after than it charges. Qi charging doesn't have great amperage.
Sent from my Nexus 7
J_M_H said:
USB OTG Helper works for me. It also supports NTFS drives.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
works for me as well, I am wondering if there will be a root flash-able mod like the original N7 had to turn OTG on.
Why does Google not allow OTG to be active out of box? Is the lure of trying force people into using the cloud that strong? Clouds drain more battery compared to local content and wifi connections do not have 100% coverage like local does.
The reality is the reason this device is priced at near break-even pricing IS the cloud, so this is why there is no SD slot or full OTG, out of box. Most people do not mod, so most people will be part of their cloud control strategy. I would rather pay $50 more and let Google make a profit on the device, that way I could have a micro sd slot and OTG out of box. Curse Google and their quest for content control and data mining! :silly:
Earlier I said it wasn't working, without knowingly changing anything both Stickmount and Nexus Media Importer now work. I am rooted and perhaps Stickmount is making NMI work.
J_M_H said:
USB OTG Helper works for me. It also supports NTFS drives.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Stick Mount works 100% fine for me, just watched a movie from my thumb drive. I am stock+Root. Open file system and on SD card look at the USB Storage folder if you are unfamiliar with Stick Root.
Is otg ok with usb pen drive or 2.5 hard disk without power supply?
sasu85 said:
Is otg ok with usb pen drive or 2.5 hard disk without power supply?
Click to expand...
Click to collapse
Yes and I also used it with a USB External HD and it worked fine there, too.
I had issues with OTG on my first N7 2013. It was a flaky connection and would go into a connect/disconnect loop and then just stop all together. I returned it and picked up a different. That one seems to work fine.
Stock, not rooted, and using Nexus Media Importer.
Some people may want to try rebooting their N7 as well.... If you look at the NMI app in the Play Store the developer knows there are a few issues with Android 4.3 when first using the app.
Landara said:
Yes and I also used it with a USB External HD and it worked fine there, too.
Click to expand...
Click to collapse
Thank you very much!! I love OTG features...
This new Nexus 7 has OTG support and also Slim port connection (for hdmi)...SUPER GOOGLE!!:good:

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