Database Develop

USB device not recognized all of a sudden

Im hoping that someone can help me with this please.
For no apparent reason this came up on connecting to my office pc yesterday, I tried at home today with the same error on two separate machine.
Have searched the forums with a few dead ends where people have resolved but no reasons given.
As others have done have backed up settings etc and reset my device in the hope that maybe mobile shell 3.5 might have been at fault but sadly not.
Ive taken a look at the usb port itself and the second pin from the left appears to be very flat in comparrison to its neibours, could someone confirm this please before I start prodding about.
thanks

Do a search in this forum for USB connector -- you will find lots of advice.
Also, if it happens on multiple machines, and you're using the same cable, try a different cable -- these can go bad too.

[Q] USB host, Access Android files from WebOs

Hi all,
after using the touchpad for couple of days, I sem to mis the following functions:
Access to my Android folders from WebOs, I understand that it got a WebOs, but when there is 32GB on the touchpad or 16GB for that matter a file explorer would prove handy.
The other issue I miss in both WebOs and Android is the USB host, there is a youtube video explaining that the touchpad does not have enough power to connect a USB memory or keybord or USB anything! and shows a work around, but not so practical.
The btouchpad got a 6800 mA battery, while my Galaxy S II got 1650 mA battery, yet my SGSII phone can host quite well! not to mention other cheap chinese tablets.
Is it a software issue that could be updated?

Well I'm pretty sure with the webOS file manager you can see the same internal SD as long as its not hidden. I don't know what you mean by android files.
The thing about the USB host is firstly the TouchPad doesn't have a full sized USB port so most peripherals would be impossible or impractical. That would only make sense for the producers to not give the voltage overhead to achieve some crazy mess of adapters and wires in a machine that was meant to be wholly wireless and cloud based. HP gave you a 50GB box account so you wouldn't need a USB flash drive and Bluetooth so you van get their Bluetooth keyboards and mice.
Samsung Galaxy Captivate ICS | HP TouchPad CM Xron B2.2

Thanks for the reply,
to browse the folders in webOS(I mean all the folders, even those created by android, downloaded in Android) it took I don't know what to call it but it is the equivelant of rooting or jil breaking.
Did not expepriment yet with USB host.
You must have been in a situation where you meet somebody somewhere has couple of gigs files in a USB memory to transfer to you, all that is around you is your phone or tablet , easiest way is to transfer it right there and then.
Not something that you wil need everyday , but very very handy to have when you need it, even cheap chinese tablets can do it, many phones can do it, Archos does it from day one. it is alot more common and main stream than the way you describe it.
thanks again for your input
iamsamsamiam said:
Well I'm pretty sure with the webOS file manager you can see the same internal SD as long as its not hidden. I don't know what you mean by android files.
The thing about the USB host is firstly the TouchPad doesn't have a full sized USB port so most peripherals would be impossible or impractical. That would only make sense for the producers to not give the voltage overhead to achieve some crazy mess of adapters and wires in a machine that was meant to be wholly wireless and cloud based. HP gave you a 50GB box account so you wouldn't need a USB flash drive and Bluetooth so you van get their Bluetooth keyboards and mice.
Samsung Galaxy Captivate ICS | HP TouchPad CM Xron B2.2
Click to expand...
Click to collapse

Usb host mode is only available with a powered usb hub and a "Y" cable as the micro usb port on the TP does not supply enough power to use without the powered hub. For file transfers between devices I would recommend some of the excellent wifi transfer programs.
As for accessing android files within WebOS, all you need is internalz Pro file manager. WebOS does not require any sort of "Jailbreaking" to access files. Install preware on the webOS side and tweek to your hearts content.
Sent from my Touchpad using Tapatalk

this is the cleanest way::
http://www.amazon.com/Solar-Powered-Battery-Charger-Adapter/dp/B006DVMW92
and this::
http://www.ebay.co.uk/itm/270823070399?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
ebay link is OTG cable.. and it is needed

amkaos said:
this is the cleanest way::
http://www.amazon.com/Solar-Powered-Battery-Charger-Adapter/dp/B006DVMW92
Click to expand...
Click to collapse
Are you sure? Did you use this? Because it looks like this thing have 160ma battery, which is simply a joke.
OP, there is still a chance that self-powered Host is possible, but it's not guaranteed and it's not the first priority for devs.

dundroid wrote: "The other issue I miss in both WebOs and Android is the USB host, there is a youtube video explaining that the touchpad does not have enough power to connect a USB memory or keybord or USB anything! and shows a work around, but not so practical."
It depends on your needs and maybe other options do the same or even better than a USB connection.
in case you need quick access to the Touchpad have a look at Airdroid or some ftp-server (e.g. swift-ftp).
It is very easy and comfortable with these apps.

Unrealwolf said:
Are you sure? Did you use this? Because it looks like this thing have 160ma battery, which is simply a joke.
OP, there is still a chance that self-powered Host is possible, but it's not guaranteed and it's not the first priority for devs.
Click to expand...
Click to collapse
what i posted is from webosnation.. a user named wheel nuts (i think)
condensed a loong thread that came up w/ this solution.
ppl are using w/ success..
the only thing necessary is manual mounting and unmount from xecutah
http://forums.webosnation.com/hp-to...ter-touchpad-connect-thumb-drive-kbd-etc.html

Q: How to connect 3g usb on hp touchpad - Android version?

Dear everyone!
I read of some other forum about nexus 7 can connect to 3g usb & work well. So, can Hp Touchpad android connect to 3g usb like this? i hope this thing is happen, you know touchpad will awesome with this mighty thing.
Plz teach me how, if you guy did it.
Many Thanks

Unlike Nexus 7, touchpad micro usb doesn't provide any power. That said, you need a Y connector and a power source to get the USB Host functionality.
Therefore it is not portable and painful setup if you want to use it on the go. Another thing is the driver for the 3g dongle itself, its possibly already implemented in the driver, if not its never going to happen, since its a pain in the ass to write a new driver specifically for the 'old' touchpad.
If you need internet connection on the go, I suggest you to get one of the portable hotspot device like huawei e585 or similar kind or you could even share your android/iphone internet (wifi tether)
Just to give you an idea of how messy the setup of the OTG on touchpad is:
http://www.youtube.com/watch?v=Nc7tlPwFQpg

thanks for your informaition
Thanks for your Information, i heared that before and now i'm using my phone to tether internet connection for that. It's just a little hoping for miracle thing on touchpad. I always believe a day when touchpad rising again ^^.
Many Thanks Guys.

This would be a workaround. I had one similar to this that was rechargeable .
http://www.amazon.com/gp/aw/d/B002FJZHWU

3g dongle works with hp touchpad now. Check Josh's PPPWidget forum. I am using a ZTE MF110 with it on CM9 and get better performance than on a win7 machine.

[Q] Nexus 6 OTG

This is the second time I am posting this as I have posted it once before and did not get even one response from a community known for its extensive knowledge in this field.... VERY frustrating as there was many views and no one offered any help. ANYWAYS,
I have been trying to get my OTG cable for my nexus 6 working for weeks now to no avail... I am rooted unlocked and have tried every app that I have found to help in the mounting process. I use TWRP and am not able to mount through recovery either. I have read that others have gotten an OTG cable to work with the Nexus 6 but like I said, no one has been kind enough to take the time out to help. Because I am out of resources I am going to put my faith in humanity and ask once again.... could someone who knows this process please give me a hand in this? Thank you very much in advance to anyone who would be willing to help.

bda714 said:
This is the second time I am posting this as I have posted it once before and did not get even one response from a community known for its extensive knowledge in this field.... VERY frustrating as there was many views and no one offered any help. ANYWAYS,
I have been trying to get my OTG cable for my nexus 6 working for weeks now to no avail... I am rooted unlocked and have tried every app that I have found to help in the mounting process. I use TWRP and am not able to mount through recovery either. I have read that others have gotten an OTG cable to work with the Nexus 6 but like I said, no one has been kind enough to take the time out to help. Because I am out of resources I am going to put my faith in humanity and ask once again.... could someone who knows this process please give me a hand in this? Thank you very much in advance to anyone who would be willing to help.
Click to expand...
Click to collapse
I dont know if this will help, but here it goes.......
I needed an OTG cable for a device a few years ago. I went to microconnectors.com and searched...I found E07-171-OTG for 9 bucks. I didnt have to do anything more than connect it to my device and was able to wipe my device with no problem. I saw your post this morning and searched for my OTG cable and connected it to my N6 and it worked. Not that I expected anything else, as it is a USB MICRO to USB FEMALE. You can probably find it cheaper elsewhere on the Net, but again I did not have to load any software at all....just plug and play....so to speak. Hope this helps.....

Use Es explorer or chainfires stick Mount and or still work just fine. I use otg everyday without issues.

arty181 said:
I dont know if this will help, but here it goes.......
I needed an OTG cable for a device a few years ago. I went to microconnectors.com and searched...I found E07-171-OTG for 9 bucks. I didnt have to do anything more than connect it to my device and was able to wipe my device with no problem. I saw your post this morning and searched for my OTG cable and connected it to my N6 and it worked. Not that I expected anything else, as it is a USB MICRO to USB FEMALE. You can probably find it cheaper elsewhere on the Net, but again I did not have to load any software at all....just plug and play....so to speak. Hope this helps.....
Click to expand...
Click to collapse
Pilz said:
Use Es explorer or chainfires stick Mount and or still work just fine. I use otg everyday without issues.
Click to expand...
Click to collapse
Thank you both for responding and I really appreciate you taking the time to do so. Unfortunately I believe that there is something more going wrong here than just missing a step. I have tried the CF stick mount and ES explorer. Also I too am using a standard micro USB to female USB connector and its getting no signal even when I look for it using a terminal emulator or adb shell i cant find anything under /dev or /mnt. I really need someone who knows linux better than me on android who can go through a troubleshooting process of elimination with me. Thank you both again for your quick reply!

bda714 said:
Thank you both for responding and I really appreciate you taking the time to do so. Unfortunately I believe that there is something more going wrong here than just missing a step. I have tried the CF stick mount and ES explorer. Also I too am using a standard micro USB to female USB connector and its getting no signal even when I look for it using a terminal emulator or adb shell i cant find anything under /dev or /mnt. I really need someone who knows linux better than me on android who can go through a troubleshooting process of elimination with me. Thank you both again for your quick reply!
Click to expand...
Click to collapse
Does the off work without issues on other devices? I don't use stick mount as much because es file explorer always works for me now. Did you look under the local section in es file explorer, it should be under the option for SD card on the. LHS window that you pull out.

Pilz said:
Does the off work without issues on other devices? I don't use stick mount as much because es file explorer always works for me now. Did you look under the local section in es file explorer, it should be under the option for SD card on the. LHS window that you pull out.
Click to expand...
Click to collapse
yes I have looked under SD card in ES explorer. And Im assuming you meant otg and not 'off'? I have not used it on any other devices no. And it very well could be the issue that the cable is no good but that is part of the troubleshooting that I wanted to go through. I made the otg cable myself and I literally made three of them thinking maybe I was doing something wrong with the the fabriccation of the cable but I am 99.9% certain that there is nothing wrong with the cable. I made it a Y cable with the 4th and 5th pin on the mini usb male shorted (jumped). Then with the male usb type a plug only having pins 1 and 4 populated. I have made plenty of usb cables in the past and like I said made three of these before I was sure that the cable wasnt the problem. The cable when plugged in charges the phone fine just even with the otg troubleshooting app doesnt show a mount point. I couldnt even find it in the shell as a charging device yet it is clearly charging

bda714 said:
yes I have looked under SD card in ES explorer. And Im assuming you meant otg and not 'off'? I have not used it on any other devices no. And it very well could be the issue that the cable is no good but that is part of the troubleshooting that I wanted to go through. I made the otg cable myself and I literally made three of them thinking maybe I was doing something wrong with the the fabriccation of the cable but I am 99.9% certain that there is nothing wrong with the cable. I made it a Y cable with the 4th and 5th pin on the mini usb male shorted (jumped). Then with the male usb type a plug only having pins 1 and 4 populated. I have made plenty of usb cables in the past and like I said made three of these before I was sure that the cable wasnt the problem. The cable when plugged in charges the phone fine just even with the otg troubleshooting app doesnt show a mount point. I couldnt even find it in the shell as a charging device yet it is clearly charging
Click to expand...
Click to collapse
Yes I mean OTG, although my keyboard disagreed...
It could be the way the device is seeing the cable (I know some cables are charge only) maybe the phone sees it as one of those? I would try to find someone else you know who has a Android phone and see if it works. Its odd that it doesn't work, I have a OTG cable and 3 OTG flash drives that I use, but I haven't had any issues with my phone finding them.

Pilz said:
Yes I mean OTG, although my keyboard disagreed...
It could be the way the device is seeing the cable (I know some cables are charge only) maybe the phone sees it as one of those? I would try to find someone else you know who has a Android phone and see if it works. Its odd that it doesn't work, I have a OTG cable and 3 OTG flash drives that I use, but I haven't had any issues with my phone finding them.
Click to expand...
Click to collapse
When you say otg flash drive do you just mean flash drives that you have dedicated to otg use or is there something special about them? How about the permissions or the way the flash drive is formatted? should work with just a normal fat32 formatted flash drive right? And I tried getting the cable to work before I even put the charging option on it thinking maybe the flash drive needed power and didnt work than either. How about when a flash drive has a led light for an indicator on it. when you plug it in to your phone via the otg does the light blink during activity?

o and I have checked continuity of the cable with a multimtr and everything is fine there so GRRRr!

bda714 said:
o and I have checked continuity of the cable with a multimtr and everything is fine there so GRRRr!
Click to expand...
Click to collapse
I know enough to splice some wires but I couldn't tell you why it's not working. I hope someone here can help you out.

so I tried a usb with a led indicator light and it does indeed light up showing me that the cable is in fact good and that the usb is being recognized but I still cant mount it or see it in the file systems.... The light flashes on the usb when the phone is booting and when I plug in the usb and still no recognition in files

bda714 said:
This is the second time I am posting this as I have posted it once before and did not get even one response from a community known for its extensive knowledge in this field.... VERY frustrating as there was many views and no one offered any help. ANYWAYS,
I have been trying to get my OTG cable for my nexus 6 working for weeks now to no avail... I am rooted unlocked and have tried every app that I have found to help in the mounting process. I use TWRP and am not able to mount through recovery either. I have read that others have gotten an OTG cable to work with the Nexus 6 but like I said, no one has been kind enough to take the time out to help. Because I am out of resources I am going to put my faith in humanity and ask once again.... could someone who knows this process please give me a hand in this? Thank you very much in advance to anyone who would be willing to help.
Click to expand...
Click to collapse
Have you tried this app: https://play.google.com/store/apps/details?id=com.homeysoft.nexususb.importer&hl=en
It's 3.99 but if it works then it's money well spent? Someone posted a video on this app working on an unrooted Nexus 7 Tablet using a cable and regular thumbdrive, not an OTG drive: https://www.youtube.com/watch?v=YDq0MLkE3Pg

blazinazn said:
Have you tried this app: https://play.google.com/store/apps/details?id=com.homeysoft.nexususb.importer&hl=en
It's 3.99 but if it works then it's money well spent? Someone posted a video on this app working on an unrooted Nexus 7 Tablet using a cable and regular thumbdrive, not an OTG drive: https://www.youtube.com/watch?v=YDq0MLkE3Pg
Click to expand...
Click to collapse
Thumb drives will work anyway assuming they are formatted correctly. I believe they need to be ExFat not Fat32 to work with OTG.

I did try exfat also and no luck there either... the cable does work on other devices so wtheck? Anyone else can give me some help please? Perhaps a "member" could help....

Witson MX bootloader mode - Connect to PC

Hi All,
I have been struggling with my MX head unit for a month now, i cant bring it back from Brick. I have tried every software available, i have flashed every MCU you can think of. Im trying to connect the thing to a pc to write firmware using RKpatch tool. Does any one know how to connect it? I dont have an OTG port but i have 2 USB ports on the back, i have connected the cable and have tried every possible sequence its not seen by the computer. I have taken the unit apart to find the short pins Nothing.... i really need help..