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I'm trying to connect the unifying receiver to my Nexus 7 (2013) with an OTG cable, but it doesn't work.
USB diagnostics app by Chainfire says the kernel detects it, but the Android API doesn't (not sure what that is). All other USB devices I have tried seem to be working.
I think I read of other people having the same problem. I was wondering if this was a problem with the 2013 Nexus 7 in general. If so, is there a fix? or will there be one?
Also, I was playing with my tablet and OTG cable; I was wondering if anyone else has USB devices "sleeping" when the tablet is put to sleep.
I noticed when I plug the cable in the tablet while it is awake, and then plug in a USB device, the USB device will work fine until I put the tablet to sleep. After I put the tablet to sleep, the USB device would power off, and after waking the tablet back up, the device would remain off and unresponsive.
The workaround I found was to plug in the cable while the tablet was asleep, and then waking up the tablet before plugging in USB device. I would then be able to put the tablet to sleep with the USB device remaining powered (while it's asleep and) when it's awakened.
Sorry if this was confusing.
Thanks!
I've got a working OTG fix that does not require root after much messing about!
Go to settings and disable security lock screen then select English US as the language.
Insert OTG cable and start Nexus Media Importer.
Reboot.
Nexus Media Importer should now pop up as usual and OTG should now be working.
Change language back but do not reboot as you will have to repeat these steps.
Same problem..
I have tried nexus media importer or custom kernel, ETC.. however, the problem is occurred again.
Everytime, kernel has error like..
Code:
logitech-djreceiver 0003:046D:C52B.0018 : claimed by neither input, hiddev nor hidraw
logitech-djreceiver 0003:046D:C52B.0018 : logi_dj_probe:hid_hw_start returned error
Is there anyone uses unifying on Nexus 7 2013? :crying:
Same issue with the receiver
My Unifying receiver works on my SGS 3, but it doesn't seem to work with my nexus 7 :'(
Lurkin_Lurker said:
I'm trying to connect the unifying receiver to my Nexus 7 (2013) with an OTG cable, but it doesn't work.
USB diagnostics app by Chainfire says the kernel detects it, but the Android API doesn't (not sure what that is). All other USB devices I have tried seem to be working.
I think I read of other people having the same problem. I was wondering if this was a problem with the 2013 Nexus 7 in general. If so, is there a fix? or will there be one?
Also, I was playing with my tablet and OTG cable; I was wondering if anyone else has USB devices "sleeping" when the tablet is put to sleep.
I noticed when I plug the cable in the tablet while it is awake, and then plug in a USB device, the USB device will work fine until I put the tablet to sleep. After I put the tablet to sleep, the USB device would power off, and after waking the tablet back up, the device would remain off and unresponsive.
The workaround I found was to plug in the cable while the tablet was asleep, and then waking up the tablet before plugging in USB device. I would then be able to put the tablet to sleep with the USB device remaining powered (while it's asleep and) when it's awakened.
Sorry if this was confusing.
Thanks!
Click to expand...
Click to collapse
Any News in this area? I Bought my Nexus 7 to use it during class (as a studytool ofc) . But without having my external keyboard it isn't of much use
I've been having trouble getting my Logitech K750 keyboard to work on the nexus 7 (stock ROM, only rooted). Does anyone know if the Logitech Unifying Receiver is supported on this product? It works perfectly fine on my Galaxy Note N7000 running CM10.2
I can get other USB devices to work on the Nexus using the same OTG cable, for example Logitech MX Revolution wireless mouse, Xbox 360 controller and USB flash drives.
Same problem
I have the same issue with a stock/non-rooted Nexus 7 (2013) and my Logitech unifying receiver. Sadly all I can really say is what did and didn't work.
Does work:
OTG adapter from monoprice.com
Trendnet Powered USB 2.0 Hub (TU2-700)
Microsoft Wireless Mouse 5000
Every USB flash drive I've tried has worked via the 'Nexus Media Importer' app (FAT/FAT32 devices). Even multiple plugged-in flash drives connected simultaneously via the USB hub works just fine.
Custom built USB 2.0 External Hard Drive (using a Nexstar enclosure and Western Digital 320GB hard drive; powered off USB hub)
Apple iPhone 4s (iOS 7) - The tablet called the phone a MTP device and viewed the media (pics) through the built-in Gallery app importer
Does NOT work:
Logitech unifying receivers - Specifically, I tried with the K360, K400 and K750 keyboards and a M510 mouse
USB 2.0 10/100 Ethernet Adapter from monoprice.com (no apparent model # but it's their PID#: 9468)
USB 2.0 Logitech C910 Webcam
USB Logitech Headset G330 ...I was just curious
So far compatibility seems arbitrary. I would have thought the Nexus 7 (2013) would have better compatibility with Logitech, a maker of Google TV's, versus Microsoft or even Apple but that has not been the case. If this is a bug, it's a big one considering the popularity of Logitech devices. Sadly, I personally don't even have a keyboard that will work.
Any more details about this problem? Surely this must be a driver issue, since I don't see any other reason why the unifying receiver would refuse to work on the new Nexus 7. As stated above by others, it works perfectly fine on other devices, including the stock rom running TF101 transformer tablet.
I'm running CM nightlies on my Nexus 7 and was really surprised to see that it doesn't work with my unifying kb & mouse
---------- Post added at 01:34 PM ---------- Previous post was at 01:14 PM ----------
Just tested with a different USB tester app - the receiver is obviously recognised. The OS can see it, and gets the device/vendor ID, and the device name... but no mouse cursor
http://i.imgur.com/moYVDet.png
http://i.imgur.com/OjFGzaw.png
Tested it with an older Logitech mouse that I have (doesn't use Unifying receiver), and that worked just fine..
http://i.imgur.com/aHdk6Qv.png
http://i.imgur.com/Z8qhoFr.png
But I need the new unifying one to work, mostly for the keyboard.
This issue is discussed here: http://forum.xda-developers.com/showthread.php?t=2233849
I'm also having trouble with this. My K400, which would be awesome for tablets, isn't able to work, for it uses a Logitech unifying receiver. It seems it's a simple fix within the kernel. I've tried flashing many different kernels for this device, yet none have added support for it. The device works well on my Galaxy S4, if that means anything.
We'll need to get ahold of one of the developers and hope they're willing to add in the necessary stuff to their kernel if we want to fix this.
Could it be that a current Nexus 7 dev has to integrate some of the patches listed in some of the roms posted here: http://forum.xda-developers.com/showthread.php?t=2233849 ?
mohitrocks said:
Could it be that a current Nexus 7 dev has to integrate some of the patches listed in some of the roms posted here: http://forum.xda-developers.com/showthread.php?t=2233849 ?
Click to expand...
Click to collapse
How can we ask them that?
Anyone found any update news on this issue:?
Marty
I can't help with the unifying remote but the sleep of the USB drive drive me nuts too I was recommended this app and it worked perfectly
https://play.google.com/store/apps/details?id=com.MI.otglock
Sent from my HTC One X using Tapatalk now Free
The Logitech Wireless Touch Keyboard K400r works with its unifying receiver and OTG cable plugged into the original Nexus 7:
Android version 4.3
Build number JWR66Y
Kernel version 3.1.10-g1e8b3d8
But the above set up does not work with the 2013 version of the Nexus 7:
Android version 4.3
Build number JSS15R
Kernel version 3.4.0-g9e52a21
Bump
Solution Anyone?
Can't believe that none of the N7 developers are using a logitech device! !
I got a K400. Works fine with my nexus 5. Not with the nexus 7 2013
need an updated or custom kernel
It looks like we'll need an updated kernel, which has some extra CONFIG switches activated, per these threads:
http://forum.xda-developers.com/showthread.php?t=2233849#2
Has anyone had success with a custom kernel or rom that includes the kernel drivers for the Logitech unifying receiver?
It would be nice to have a minimally changed kernel that included support just for these new drivers:
http://androidforums.com/nexus-7-gen2-2013-all-things-root/770430-otg-cables-usb-logitech-k400r-wireless-keyboard-track-pad-area.html#post6153020
Updates?
Hey all
Was just trying out the Unifying Receiver today and was surprised and disappointed that it didn't work at all.
Has anyone managed to get it working since the last post?
P
no
After my last post, I contacted Google support. They said that they could not help, and Logitech would have to fix it. I tried to talk technical about kernel config switches, and I begged to talk to someone who understood what I was saying, but I basically was told they did not have resources to troubleshoot every possible accessory.
I contacted Logitech, and they said that Google was right. They claimed responsibility and stated they did not support Nexus 7 (2013). It would not work.
Bottom line: This accessory will only ever work in a custom ROM, if it works then.
If anyone has any luck with this accessory on a custom ROM or in any other setup, please let us know.
Earlier posts say it is recognized by the OS, but not Android API.
Then, all it needs should be the files to tell Android it is a mouse and keyboard, right? Seems like the only issueis our device didn't have it in its device list.
What file to mod, what line(s) to mod?
Has anyone found a fix for this? I just bought a Google Nexus 7 2013 - 32GB and am trying to use the unifying receiver with an OTG cable (Logitech devices are the K800 keyboard and Experience MX mouse). The unifying receiver works fine on my galaxy S5 but no luck on my nexus 7. I am currently unrooted running stock lollipop 5.0.2. I am prepared to unlock bootloader, root, and install custom kernel if necessary.
Any info to get the Logitech unifying receiver working on my Nexus 7 would be greatly appreciated.
dear friends.. am willing to buy this tablet soon.. i want to know if i can smoothly connect a 3g usb modem to this tab through an OTG cable to surf the net?
and will it consume alot of battery ??
thanks in advance..
I think you are out of luck unless its a VERY custom rom and kernal. It has nothing to do with the device. However since 4.0.4 android has made it so apps can not inject drivers. Since they can not load drivers anymore, if your rom/kernal doesnt have the drivers, it wont run the dongle.
Honestly your better off just getting a puck or a small rooted cellphone you can tether to.
http://www.ebay.com/itm/310610100881?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
http://www.draisberghof.de/android/pppwidget.html
http://forum.xda-developers.com/showthread.php?t=2172914
After upgrading to lollipop OTG doesn't seem to work any more
I stick a multi SD / USB adapter and it doesn't do anything
should i enable something? like developer menu?
I have the same problem
Sent from my SM-T705 using XDA Free mobile app
Works fine for me on my 10.5, maybe you have the wrong otg cable?
Do you see the notification in the status bar when connecting a device.
no notification, but with same cable and same USB pen connected to Samsung S6 it works
not sure why and how it worked but connecting tablet to PC, it was recognized as external storage on mac with android app
now after disconnecting OTG works
al404 said:
not sure why and how it worked but connecting tablet to PC, it was recognized as external storage on mac with android app
now after disconnecting OTG works
Click to expand...
Click to collapse
I am having same problems as others. Tried al404's suggestion in various forms and still nothing. The problem may be unique to the Wifi only models. Does al404 have LTE? I also have loaded various ROMs, including Liquidsmooth (which supposedly had OTG control), and they have not helped.
BearBoy01 said:
I am having same problems as others. Tried al404's suggestion in various forms and still nothing. The problem may be unique to the Wifi only models. Does al404 have LTE? I also have loaded various ROMs, including Liquidsmooth (which supposedly had OTG control), and they have not helped.
Click to expand...
Click to collapse
i have LTE model
i also discovered a strange thing, if i connect OTG adapter on HDD USB cable and after that connect to tablet it doesn't detect the storage
if i connect OTG adapter to tablet and then i connect HDD usb to adapter tablet detect external storage
al404 said:
i have LTE model
i also discovered a strange thing, if i connect OTG adapter on HDD USB cable and after that connect to tablet it doesn't detect the storage
if i connect OTG adapter to tablet and then i connect HDD usb to adapter tablet detect external storage
Click to expand...
Click to collapse
Thanks! UsbDriveA it is.
Hello,
The modem that worked 100% of the time in KGL MTCB units, the Huawei E173u-2 doesn't work anymore.
The manufacturer sent us a list of modems that are - to say the least - very exotic in Europe.
Does anybody have a list of compatible modems? What modems do you guys use?
Do MTCD units support 4G/LTE modems or still only 3G?
Make use of an old phone, making wifi hotspot! - works best for me.
No need to buy slow sticks. Blackberry Q5 is very cheap - and LTE 4g wkan-hotspot is in.
Try the "chinese" umts stick for umts/wcdma that are sold within the headunits. these mostly are 7.2mb/s download. not statisfying, is it?
Yep, the UMTS stick is crap. I bought a Huawei E8372 LTE-WiFi-Stick. This one runs much better.
I tried a Huawei 3131H USB stick and it works fine (3G). The connection appears as a mobile 3g regular icon on the head unit. Sometimes the stick connects, but there's no visual feedback on the unit (still works).
Then I switched to a Huawei R216 (modem/wireless router with battery) with 4G, also works fine. The connection appears as "shared via cable" - 2 small overlapping computer icons. It also works seamlessly. You cannot connect the head unit to the modem wifi while connected via USB (makes sense and I don't know if there's any setting to switch from shared cable connection to wifi)
Hotspot with internet connection (from various phones) - works without a hitch and you can do it with an older phone connected to the USB for power, I tried with an old Samsung S3 Mini and it worked.
The Vodafone tech guys said that their stick modems may not be compatible with my setup, because they had people returning them after tying to connect them to tablets via cable. I suspect that's the case for the headunit too, so I didn't risk it - Vodafone Mobile K4607-Z (from ZTE) and Vodafone Connect USB Speed 6 4G (Huawei I think) are the ones in question.
Hope this helps.
zoppa said:
Yep, the UMTS stick is crap. I bought a Huawei E8372 LTE-WiFi-Stick. This one runs much better.
Click to expand...
Click to collapse
avionaru said:
I tried a Huawei 3131H USB stick and it works fine (3G). The connection appears as a mobile 3g regular icon on the head unit. Sometimes the stick connects, but there's no visual feedback on the unit (still works).
Then I switched to a Huawei R216 (modem/wireless router with battery) with 4G, also works fine. The connection appears as "shared via cable" - 2 small overlapping computer icons. It also works seamlessly. You cannot connect the head unit to the modem wifi while connected via USB (makes sense and I don't know if there's any setting to switch from shared cable connection to wifi)
Hotspot with internet connection (from various phones) - works without a hitch and you can do it with an older phone connected to the USB for power, I tried with an old Samsung S3 Mini and it worked.
The Vodafone tech guys said that their stick modems may not be compatible with my setup, because they had people returning them after tying to connect them to tablets via cable. I suspect that's the case for the headunit too, so I didn't risk it - Vodafone Mobile K4607-Z (from ZTE) and Vodafone Connect USB Speed 6 4G (Huawei I think) are the ones in question.
Hope this helps.
Click to expand...
Click to collapse
What units do you guys have? Out of curiosity? KLD, KGL, etc?
GS (Xtrons)
Some one test the Huawei E367U-8?
NaviPR said:
What units do you guys have? Out of curiosity? KLD, KGL, etc?
Click to expand...
Click to collapse
HotAudio (HA)
Sent from my SM-G900F using Tapatalk
Surely this has nothing to do with MCU version and is dependent on the ROM?
Zubie
I bought a Zubie. It plugs in to the OBD2 port and provides wifi to the car through my Verizon account.
In order to still use a bluetooth OBD2 adapter simultaneously, I bought an OBD2 splitter cable off amazon.
I love this setup.
DOES NOT WORK:Telstra Pre-Paid MF823 4G USB (ZTE MF823) (Unlocked via ebay code)
Only works if when initially plugged in, does not work when resumed from standby or swapped from wifi: HUAWEI E122
Also, There is a big difference for applications activity between a "Cellular" data connection and a WIFI connection (Tethered/hotspot). EG. Spotify set to only download on WIFI connection cannot differentiate between your home WIFI connection and a hotspot or Play Store set to update on WIFI only. This can become costly if you're on a small data plan.
Huawei e3372 (4G/LTE) works perfect when updated the MCU (MTCD_KDV1.82_1 Aug 26).
Initially I've tried with MTCD_KDV1.52_1 May 4, but didn't work.
but nevertheless, there's not 3G or LTE icon signal, there's a Network icon (two computers like MsWindows icon) like if it was an ethernet connection.
I've tested and it works at LTE speed. Cool! :good::good:
Only there's only one problem: This network connection is preferent over WiFi, so, to connect to a Wifi Nework i've to unplug the USB dongle. It's impossible to connect to a WiFi when the dongle is connected.
Joying posted a new 4G dongle, but looks like it works more as a wifi hotspot:
https://www.youtube.com/watch?v=gbsMxcaHBOE
CadillacMike said:
Joying posted a new 4G dongle, but looks like it works more as a wifi hotspot:
https://www.youtube.com/watch?v=gbsMxcaHBOE
Click to expand...
Click to collapse
100% a hotspot, the unit is simply powering it.
avionaru said:
I tried a Huawei 3131H USB stick and it works fine (3G). The connection appears as a mobile 3g regular icon on the head unit. Sometimes the stick connects, but there's no visual feedback on the unit (still works).
Then I switched to a Huawei R216 (modem/wireless router with battery) with 4G, also works fine. The connection appears as "shared via cable" - 2 small overlapping computer icons. It also works seamlessly. You cannot connect the head unit to the modem wifi while connected via USB (makes sense and I don't know if there's any setting to switch from shared cable connection to wifi)
Hotspot with internet connection (from various phones) - works without a hitch and you can do it with an older phone connected to the USB for power, I tried with an old Samsung S3 Mini and it worked.
The Vodafone tech guys said that their stick modems may not be compatible with my setup, because they had people returning them after tying to connect them to tablets via cable. I suspect that's the case for the headunit too, so I didn't risk it - Vodafone Mobile K4607-Z (from ZTE) and Vodafone Connect USB Speed 6 4G (Huawei I think) are the ones in question.
Hope this helps.
Click to expand...
Click to collapse
I've actually got the R216 and I can't make it connect via USB at all - just using the wifi connection.
Could I ask what MCU you are running and roughly where you see it in the network settings?
Thanks!
JamesNorth said:
I've actually got the R216 and I can't make it connect via USB at all - just using the wifi connection.
Could I ask what MCU you are running and roughly where you see it in the network settings?
Thanks!
Click to expand...
Click to collapse
hey, I have the R216 from Vodafone Romania and I just plugged it in in one of the 3 USB ports with a microSD cable (works on any of them, with no special settings) and threw it in the glove box. My unit is a HotAudio MTCD 5.1. As for the MCU, it worked with both the default one from May, and with the updated one from this forum (June, I think). Can't exactly recall the versions, 1.53 and 1.63 I think. The modem works with both cable sharing and hotspot simultaneously. The unit takes the cable connection as a priority from the modem (you can not plug it in the USB, but choose the Wifi from the same device). I also found out that in some ROMs, the cable net speed is vastly superior to the wifi one
avionaru said:
hey, I have the R216 from Vodafone Romania and I just plugged it in in one of the 3 USB ports with a microSD cable (works on any of them, with no special settings) and threw it in the glove box. My unit is a HotAudio MTCD 5.1. As for the MCU, it worked with both the default one from May, and with the updated one from this forum (June, I think). Can't exactly recall the versions, 1.53 and 1.63 I think. The modem works with both cable sharing and hotspot simultaneously. The unit takes the cable connection as a priority from the modem (you can not plug it in the USB, but choose the Wifi from the same device). I also found out that in some ROMs, the cable net speed is vastly superior to the wifi one
Click to expand...
Click to collapse
Awesome - thanks heaps!
I have Vodafone Australia version, so probably similar. I think I have one of those MCUs and I'm using the June version of @Malaysk's great software.
Will have to check things out further - my unit has this thing where only one of the usb ports is assigned to be used with the modem, and I can't remember which one I plugged my usb webcam into.
Thanks again for responding.
JamesNorth said:
Awesome - thanks heaps!
I have Vodafone Australia version, so probably similar. I think I have one of those MCUs and I'm using the June version of @Malaysk's great software.
Will have to check things out further - my unit has this thing where only one of the usb ports is assigned to be used with the modem, and I can't remember which one I plugged my usb webcam into.
Thanks again for responding.
Click to expand...
Click to collapse
In my unit's printed schematics & cables, the single shorter one is designated for modems (and has a separate port in the back of the unit). I just plugged the modem in the other 2 for curiosity. For HotAudio MTCD i think there are only 2 MCUs anyway, I couldn't find more. ROMs don't seem to matter, I went through 2 factory versions, 2 Malaysk versions and now I use a Xtrons one,no issues. If you can't get it to work, it may be the modem's firmware to blame.
Silly question, what do you guys use for the SIM card? Surely you don't pop it out of your phone and install it in the modem every time you go for a drive?
JordanB said:
Silly question, what do you guys use for the SIM card? Surely you don't pop it out of your phone and install it in the modem every time you go for a drive?
Click to expand...
Click to collapse
Separate sim. Here in Australia I am using a sim from Aldi Mobile on the "Pay as you go" plan.
Still waiting to find a working 3G/4G sim modem for the MTCD
i have klyde headunit i bought the zte mf833v 4g modem as the manufacturer told me to buy because this is the only 4g modem that will work on my headunit..
i placed the simcard oin the modem and connect it to rear usb port but i dont get any internet connection at all.
i have px5 unit
mtce latest update from klyde..
i dont find in setting any mobile data configuration ( like on mobile phone)
Same issue there :/
I have a Belsee BP3 from Klyde, up to date, and I can't make my Huawei E3276 4G stick work with it.
The manufacturer said that all the 3G/4G sticks are compatible...
The stick lights up and shuts down then powers on then shuts down etc...
I think those head units don't let enough current flow through the USB ports :/
I bypassed the problem by using a WiFi bridge (ie : TP-Link MR-3020) in wich I plug my USB stick...
i dont have you problem with shuts down and on..
the stick stay on and show blue light that mean its cinnected, but i just dont get any 3g/4g simbole on the headunit.
i can find in the setting anything related to mobile data
anyone can help?
the 4g modem works well on my pc..
when connecting it to my pc its instal the drivere and open automatically the webpage that controll the setting and all..
just like you login to your router web settings.
but in the car it dose not open any pageits just turn on and show blue light but no internet.
maybe there is a way to install it or configure on android system
moshebh said:
anyone can help?
the 4g modem works well on my pc..
when connecting it to my pc its instal the drivere and open automatically the webpage that controll the setting and all..
just like you login to your router web settings.
but in the car it dose not open any pageits just turn on and show blue light but no internet.
maybe there is a way to install it or configure on android system
Click to expand...
Click to collapse
Anyone who has a solution to this problem. I don't like to use my phone, just the 4G modem connected
to the Internet. UI HA_PX5_8.0
I'm also struggling with this problem, looking for a USB modem 4g dongle which can be used with PX5 MTCD. Don't want to use a wifi dongle.
On my case only 1 usb (out of 3) was successfully identifying the huawei e8372h-608 but with no connection no matter what i did, including setting the APN
Then I read that disabling wifi should make it work, but no luck with that, can confirm not working.
Tried to contact the seller on aliexpress from where i bought the 4g dongle and he said it will not work with px5 as a modem only
My old zte 3g is recognized and working flawlessly, but its 3g and i dont know why but gives me very slow speeds.
For now i stick with the wifi coming out from the huawei e8372h
I think we can change its behavior with AT commands like they used to do on ZTE dongles, keep in mind its really risky (wrong command can brick it) and youll loose your wifi router (modem/router at a time)
If someone solved that please update
I have kanor mtce gs 2.94_4 px5 4/32 ips dsp unit