Bought a Nook Color (blue dot). Rooted and installed CM7 7.1.0-encore. Kernel is 2.6.32.9. Downloaded Nook Tweaks. Followed Moshe's instructions for connecting USB devices to the Nook. Using a powered USB hub. I also have the male/female adapter that verygreen referenced in his thread. Downloaded Root Explorer. No dice.
The Nook does not recognize any USB device. Please tell me what I did wrong or need to do differently. Thank you!!!
Anyone? Please?
USB host aside, the (micro)USB port puts out very little power. For most micro types, the nominal power output is 100mA, which isn't enough to power most USB devices, including most flash keys.
Self-powered USB devices will work. I had some 1st-gen iPod Shuffle that worked, since they're battery powered. Also an unpowered cardreader. I imagine that devices connected to a powered USB hub should also work, although I didn't test that firsthand.
Thank you. From what I've been able to glean, a powered USB hub will allow non-selfpowered devices to be accessed/mounted by the NC. But I can plug in any USB device and it never gets ANY acknowledgement by the NC.
I read somewhere that an app may be interfering with the USB host mode.
Should I attempt to wipe downloaded apps off of the Nook? Should I just try a full wipe/format/reinstall?
Any insight would be appreciated. I've tried to find anything that I missed. But I'm running out of ideas.
From what I've read, success rate with powered hub is itself spotty. It's kind of hit-and-miss.
First thing is try w/o the hub to remove it from the equation. The techsupp mantra for troubleshooting is to minimize your configuration. Your variables are then the Nook itself, your software OS config, the cable, and the device.
Assuming the first two are OK, then find an eligible low-powered device like certain card readers, or a keyboard, or a self-powered device (some MP3 players with USB mass storage), or a HDD powered by a Y-cable connected to a laptop. Second, find a different micro-USB cable if none of the above work. Last, find somebody close by with a CM7 Nook to compare if all else fails.
Once you have at least a known-good setup, then expand from there by trying new periphs, like powered (or non-powered) hubs, et al.
I'll assume the obvious that you've enabled Host Mode in Nook Tweaks, check your /mnt/usbdisk, only FAT16/32 format and no NTFS, no multiple partitions, etc.
Good luck. If all else fails, you can wait for the CM9 with built-in host mode and see if that works better.
Can you specify what exactly you did? which hub?
Which usb devices you tried? and please provide logs
Check my POST for working with a powered-hub
Related
I have a question concerning USB host mode.
I want to take my NOOK color and hook it to my powered harddrive and move over a video file to the nook memory card without the use of a computer.
I bought a micro usb to usb female adapter.
Is that all i need?
Ive seen talk that you need a powered usb hub too which kind of defeats my purpose.
Thanks
You shouldn't need a powered hub with a powered hard drive... the reason some require a powered hub is the devices require more power than the nook provides... so the hub provides the power.
I downloaded Nook Tweeks, enabled USB host mode and External vBus, but nothing happens when I connect a USB-stick via a micro ubs to usb converter.
Am I supposed to do something else? Or does the USB-stick have to be in some special format?
BrotherZero said:
I downloaded Nook Tweeks, enabled USB host mode and External vBus, but nothing happens when I connect a USB-stick via a micro ubs to usb converter.
Am I supposed to do something else? Or does the USB-stick have to be in some special format?
Click to expand...
Click to collapse
I got the same exact problem. It didn't seem to work at all.I think I'll have to order the adapter to see if the problem is the OTG cable or not
dannghiem0801 said:
I got the same exact problem. It didn't seem to work at all.I think I'll have to order the adapter to see if the problem is the OTG cable or not
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Click to collapse
I ordered some cheap ones from DX, but since there are two of them and none of them works I'm assuming it's the Nook the problem is with.
BrotherZero said:
I downloaded Nook Tweeks, enabled USB host mode and External vBus, but nothing happens when I connect a USB-stick via a micro ubs to usb converter.
Am I supposed to do something else? Or does the USB-stick have to be in some special format?
Click to expand...
Click to collapse
It could be the USB-sticks are trying to draw too much power. The Nook host port will only supply low power USB devices (<100mA) and it is also best to have a fairly well charged battery. Some sticks work and others don't.
If you have a powered USB hub then this supplies the power so there is no problem. So try with a powered hub to at least see if that is the issue.
bobtidey said:
It could be the USB-sticks are trying to draw too much power. The Nook host port will only supply low power USB devices (<100mA) and it is also best to have a fairly well charged battery. Some sticks work and others don't.
If you have a powered USB hub then this supplies the power so there is no problem. So try with a powered hub to at least see if that is the issue.
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I used the same USB in this chart Nook Color USB HOST Device Compatibility List Sandisk Cruzer 8GB on CM7
I bought the Nook Color is to connect it to my camera via DSLRcontroller but so far still not successfully with USB stick.
Read my thread , it should answer most if not all your questions
[23 Jan 2012][USER/DEV] USB Host Support & Development [CM7/CM9]
I'm hoping to get some free time and update it this weekend with more info and probably a widget
I could never get usb host working on cm7. I have been trying to use RYC usb to control my Nikon Dslr . Once i switch over to CM9 beta it worked first time.
Sent from my Nook Color (CM9 ICS Beta)
Dj-Gutz said:
Read my thread , it should answer most if not all your questions
[23 Jan 2012][USER/DEV] USB Host Support & Development [CM7/CM9]
I'm hoping to get some free time and update it this weekend with more info and probably a widget
Click to expand...
Click to collapse
I have read this thread over and over again. Ill try to run CM9 soon to see if it works
Sent from my NookColor using Tapatalk
CM7 also shouldn't give you any trouble , as long as its FAT32 and you are using a hub
can you explain what exactly have you tried and provide logs?
I didnt use usb hub,just enable the usb host mode in Nook Tweak app and plug my usb via otg cable.
Sent from my MB508 using XDA App
Then you didn't read good enough the thread or the chart..
You need an external hub ( powered or non-powered ) to work with the sandisk cruzer.
Thanks a lot, i ll order one and try it out.
I tried to connect with my camera but nothing happened,I guess I have to try with usb hub as well
Sent from my MB508 using XDA App
Disclaimer - This is my first post on this site, so I'm going to try to be strait forward and concise, I'm sorry if any info I give lacks a certain panache.
First and foremost, if you want to use a hard drive on your phone through an HD dock, you must format your hard drive to Fat32. This is a very basic, but unavoidable step. That is if you don't want to make the entire process way more complicated. I used Easeus Partition Manager to format my entire 250GB hard drive (impressive I know). You can use other partition manager software, but Easeus is the one I'm used to, and I found a free download of it, which works perfectly on my old XP PC.
The Second step is to make sure you have enough power to make your hard drive usable, and thus be recognized by your phone. I used a USB hub with a Y-Cable and my phone charger to supply the extra power. Note: Do not put the additional USB power port on the HD dock, you will not get enough power. You have to use an additional power source for this method to work. I suggest using at least a 5V 1A charger, but my phone charger is 5.1V 850mA, and works perfectly.
Step Three is to connect the hard drive. This may seem like an unnecessary step, but there is some important things to know. Do not plug multiple storage devices into the hub. There seems to be some priority conflict when this happens. Thus, if you have a Thumb Drive and a Hard Drive, connect the Thumb drive to the HD dock directly, and the Hard Drive to the hub. I haven't tested if there is a similar conflict with two hard drives being plugged in to the hub simultaneously, nor two thumb drives. There also seems to be an issue where if you only have the hard drive plugged in, but no other storage device in any port, the hard drive still won't be detected. So, you may need to plug a thumb drive to your HD dock, and then a hard drive to the hub. This results in your phone calling the Hard Drive the same device name as the Thumb Drive, but the two are shown separately in the file manager.
The hub I used was a Micro Innovations 4-Port USB hub [Model # USB210P/USB210P-F], with a Mini USB port for the main data connection. As such, my Y-Cable was a Mini USB to Full USB Y-Cable. My USB enclosure for my hard drive was made by Manhattan, which has a single USB power/data connector. My Thumb Drive was a 16GB SanDisk Cruzer Micro. My additional charger was my stock Droid Bionic charger. I also used USB extension cords as needed.
In regards to my use of a hub and a Y-Cable there are a couple simple alternatives. One is to use a Y-Cable with a full sized female USB connection in stead of a Mini USB connector. This would allow you to forgo the USB hub. The other alternative is to, depending on the hub you have, use the provided wall charger to directly power the hub, thus not needing the phone charger, nor the Y-Cable.
This method of allowing your Hard Drive to work on your HD dock should work on other devices, as well as (with minimal alterations) silversonic1's guide "How to use USB Host without an HD Dock." http://forum.xda-developers.com/showthread.php?t=1495720
Please let me know if this helped you, and feel free to post any additional info on your success and methods used.
Edit 05/28/12: My brother bought a power converter that gives 5V 2.1A, or an optional 5V 1A on two ports. It's an RCA AC to USB converter, model # PCHUSB2R. This adapter was able to supply enough power to my hard drive for it to be read without my Thumb Drive being plugged in as well. It appears that the biggest problem the HD Dock has is that it does not give enough power to charge the phone and power a hard drive through USB. The normal power supply provides 12V 1.5A to the Dock, but I don't know how that power is distributed throughout the Dock. This apparently causes problems, but the additional Amps from the new adapter resolves a lot of them.
Although, recently I've had the problem of the Hard Drive failing on the phone's OS, but not on the Webtop OS, so the hard drive is still usable where it needs to be. You just have to go into the Webtop's file manager to unmount it once your done, but sometimes it won't say it's unmounted, so be careful. Also, the hub solution still doesn't allow you to plug in extra storage devices. It seems you're limited to one storage device per USB port on the dock itself. So, a max of 3, while, theoretically, you should be able to plug in up to 7.
thanks for the concise guide, i've been mulling over NTFS hacks for a while but frankly id probably not be worth the time.
currently i have a USB hub connected to my lapdock by a USB A (back port on lapdock) to mini connector on the hub. correct me if im wrong, but if you actually own the HD or lap dock, USB host mode is activated for you and thus you do not require an OTG cable (assuming you have adequate power for your components)-
i'm working on trying to mount a USB dvd drive, it is being detected correctly however i wonder if the issue you presented with the HD failing to mount without the thumb drive could also present itself here? (seems like simply mounting the DVD shouldnt be too difficult, but device drivers for writing i havent come across..)
nitephlight said:
thanks for the concise guide, i've been mulling over NTFS hacks for a while but frankly id probably not be worth the time.
currently i have a USB hub connected to my lapdock by a USB A (back port on lapdock) to mini connector on the hub. correct me if im wrong, but if you actually own the HD or lap dock, USB host mode is activated for you and thus you do not require an OTG cable (assuming you have adequate power for your components)-
i'm working on trying to mount a USB dvd drive, it is being detected correctly however i wonder if the issue you presented with the HD failing to mount without the thumb drive could also present itself here? (seems like simply mounting the DVD shouldnt be too difficult, but device drivers for writing i havent come across..)
Click to expand...
Click to collapse
Thanks for the reply.
It may be mostly power consumption problems for the most part for my set-up. After all I have my Thumb Drive, my Hard Drive, and a wired keyboard with built in USB 1.0 hub (which I connected a wireless mouse dongle and a USB powered fan to). But I did notice that my particular Hard Drive enclosure and Laptop Hard Drive won't work without the extra power. The light on it will turn on, but the Hard Drive remains inactive.
I just ran another test with nothing but the hard drive plugged in, but it wasn't readable until it had both extra power and my Thumb Drive connected. I don't know what exactly is up with this, but I know someone (other than me) will figure it out. I simply am not experienced enough with programming nor diagnostics to be able to find the cause, but I at least can work around the symptoms.
Hi for some reason i cant get usb host to work,
But the thing is that my devices are being powered but not detected on Android.
Also i have a "7 Nook HD with Cyanogen Mod 11 so it should work right?.
Did you enable USBHost (using Verygreen's USB Host Switcher app linked at his CM10.1 thread's OP http://forum.xda-developers.com/showpost.php?p=41024398&postcount=1)?
Yes i used that and a whole bunch of different apps and roms but they wont work.
Also the app on the screen is the USBHost Switcher App.
Edit:
i also used the nook color with cm7 and usb host worked.
Ok this morning i tried connecting my usb device again and when i pressed the button to enable usb host it worked and
i was able to use my usb device then it said it disconnected because i had another app for usb host that does that.
also could it be my cord?.
I never could get my nookhd to recognize usb either.
I am running verygreen's kernel 3.0.31 -hummingbird-green+ jun 13 2013
cyanogen 10.1
i have usb storage in storage menu as well as apps that can mount devices and storage. I also have the usbhostswitcher app as well as another one I found on here that helps for this.
I have the female to female adapter...yet no signs of it working whether I connect a mouse, usb flash drive, etc. I bought the adapter from the ebay link from verygreen post and ordered another one from diff seller today just in case...
Any thing I need besides the apps? Also anyone get a usb - to - ethernet adapter to work for this nook?
thank you all for any input
Nexus 7 (2013) with OTG and charging at the same time.
NO MODE NEEDED
[Little Intro]
I bought a Nexus 7 (2013) to use as a personal computer.
I admit, I've ****ed up the device a few times experimenting with kernels and stuff.
The thing is, you just need it rooted to use USB reading. Then you think: ok, I'm using USB and external HDs, I'm using mouse and keyboard, a external all-in-one Card Reader, and even a device that communicates with an XBox Wireless controller, but using as a computer the battery will go quickly.
I've tried two Android Cyanogen's distros and ****ed up the device 6 times. So I kept the default kernel rooted, plugged into the USB Hub device and said: well, **** off.
The thing is, when using the device I've noticed it was charging, but not saying it was charging.
[Explanation]
With my little technical knowledge of electronics I can explain what happens here.
The kernel does not support the use of OTG and charges at the same time: that is theoretical, saying that in software is not the same that measuring that.
So, what if the system charges but it just do not know?
Even if the both sides have the same potencial difference (I guess that is called voltage in english, a term disregarded in my born language, sorry about my english by the way), what if one side is providing a larger current? In theory the other side will charge, if it is a battery.
So, what actually happens is that the Nexus 7 charges, but the system level software, that, in theory, do not permit that, just do not show what is actually happening.
Obs.: I've tested the USB-Hub into my computer and it accuses overvoltage, and then when plugged to my computer I need to turn off the external power of the gadget. So, it is probably because of the specific gadget I'm using.
[Little things]
That could, may, just be possible with some specific equipment, so I will post the exactly equipment I'm using, and how I'm using it.
I ask you guys just try without the power loop I'm using to know if it is necessary, and the Nexus 9 guys to test if the same happen with it.
[The equipment]
My USB-Hub: www.dx.com/p/7-ports-powered-usb-hub-678
My OTG cable: www.dx.com/p/micro-usb-male-to-usb-female-w-usb-male-otg-cable-black-170927
[How do I connect it]
I connect the OTG cable by the male micro-USB into the tablet, loop the power with the male-USB into any USB port of the hub and connect the female-USB into the default hub main port - that one that is not the default USB-like format.
I power the USB hub and that's it. I'm using a Logitech dual transceiver with mouse and keyboard, the default microsoft XBox USB gadget, a generic all-in-one card reader and a 4GB Seagate external HD plugged into the hub.
[A final little thing]
Yes, it does not charge quickly, and yes, sometimes the battery level will be consumed a little bit. But it works well generally, without any mode needed.
It seem that is not the same as in powering mode. I'm thinking in to build an image that permits to choose between on or off in the USB out port. Can someone guarantee me that this is what the Cyanogen kernels do?
Kernel mode differences
Just to be clear, the "original" kernel mode can't know that it is charging and accessing the OTG at the same time, even doing it.
Maybe, and just maybe, the other kernel modes just let the kernel know it, having no difference to the original kernel. That's a big maybe, but a possible one.
I'd expect someone to confirm that the kernel modes "cut off" the voltage, and because of that may charge faster. Someone?