[Q] micro usb charging ports on tablet z - Xperia Tablet Z Q&A, Help & Troubleshooting

I was wondering if experts on this forum can help clarify these questions.
The tablet Z has a rectangular shaped micro usb receptacle which is the microusb A/B type as I understand it. Although the normal popular micro usb B type connector which is supplied with the tablet Will fit in there, it is kind of loose, being able to move a little bit. Whereas the A type connector which is usually found on the OTG cables is a perfect fit and does not move around..
So, why is it that even Sony does not supply a cable which perfectly fit the receptacle?
If I use an otg cable to charge somehow (by making another cable from otg cable for eg or using otg with a normal usb male to male cable), since 5 pins are used in the otg connector will it in any way damage the tablet? (physically or otherwise..)

Related

flyer dock extension?

Hi,
So i bought this desktop dock for the flyer
http://www.expansys.co.za/expansys-usb-cradle-for-htc-flyer-209455/
it is quite inexpensive and looks great. It does have a normal micro usb plug on the dock and only one connection at the back so you either sync via usb or plug a micro usb charger (micro usb at the back but comes with cable)...
My issue is that the micro usb plug on the dock is just a little bit to short if you have a shell on your flyer or if it is in a case...
i'm looking for a small micro usb male to micro usb female adapter that would make the plug higher... so far i only found micro usb male to mini usb female and mini usb male to micro usb female... I'm just worried it might make it too high...
Had a similar problem mate, took me ages till I found this
http://www.ebay.com.hk/itm/ws/eBayISAPI.dll?ViewItem&item=130626980424
thanks mate. how do you use it with dock though?
looks like we have different issues, mine was ti lengthen the cable
My bad, sorry........
Now I understood your problem, don't think you can find a proper solution mate...
i've found micro to mini both way
so i'll try to combine them and see how it goes

USB Host ?

Can EEE PAD Transformer support Full USB HOST functionality using stock connector provided by ASUS using something like below FEMALE TO FEMALE USB Adaptor ?
http://www.hkcolordigital.com/usb-2.0-a-female-to-usb-2.0-a-female-adapter.html
I know ASUS dock keyboard do have USB port and also, ASUS is selling USB adaptor for around $45, but I do not want to spend that much.
Since ASUS stock connector which is used for charging as well as data transfer from PC support USB functionality, I believe it should be easy to implement.
Any suggestion/solution ?
Thanks
No, it wouldn't work.
http://www.androidtablets.net/forum/asus-tablets/17308-usb-useful-transformer.html
I can't find pinout for ASUS charging connector, but i think it has USB-host pins in it - so you should just solder an USB-female to them in right order.
UPD:
http://www.alwaysinnovating.com/wiki/index.php/40-pin_connector
http://forum.xda-developers.com/archive/index.php/t-1056615.html
this might work. USB OTG is what we looking for
USB Adapter Coupler Type A Female to Female
I have ordered "USB Adapter Coupler Type A Female to Female" from ebay ($3 including shipping):
http://www.ebay.in/itm/120868617077?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649#ht_932wt_1143
Once it reaches to me, I'll try what is possible with it.
I received the "USB Adapter Coupler Type A Female to Female" today and tried to connect USB pen drive and as it was expected, NOTHING HAPPENED.
But, I still think it is possible. I have seen Nexus and Galaxy phones with USB host online.
I think, to be precise, it is not only Female to Female adaptor to be connected to stock connector, but it needs some power (+5v) as well. For this, I think it need USB Y Connector, as in attachment. Below is the link for reference:
http://htc-linux.org/wiki/index.php?title=Msm_Usb_Host
Now, I am thinking to open Female to Female USB connector and solder 2-wire with USB Male connector to it (I have extra USB mouse) for power (+5V & Ground) and try again.
look at last link in my previous reply. There are photos of disassembled host adapter and some schematics-pinouts. TF has USBhost, but it on different pins than usb-slave cable.

DIY OTG Cable

Has anyone made an OTG cable for the TFP? I don't like the chunky USB OTG connector and thought an OTG cable would be much better.
Not quite sure what you mean.
The only proper usb connector is a standard type A connector located on the keyboard, it has insufficient pins to implement OTG. The only other usb connectors are the propriety asus ones, one on the tablet and one on the keyboard, the other small connector on the tablet is HDMI output
I have the "chunky" USB OTG connector as well.. I don't think there's a cable though... I looked everywhere on the net
I don't have a dock therefore the only way I can plug a USB flash drive, Keyboard/mouse into the TFT is via the ASUS USB OTG Host adapter View attachment 1384503
I was after something a little slimmer and believe a OTG cable would be ideal - Refer to picture for an example of what I'm referring to View attachment 1384504
Micro USB OTG cables can be used with many phones and tablets sporting a micro USB connector. The TFP obviously doesn't have a micro USB connector therefore I was hoping someone knew how to make an ASUS 40 pin to female Type-A plug which replicates the ASUS USB OTG Host adapter.
Has anyone pulled apart the ASUS USB OTG host apapter? What's inside it?
Hey guys. There are several articles and videos around on how to make your own OTG cable. It essentially involves shorting a single pin. I have no idea if it'll work with a TFP, but I'm going to give it a shot today or tomorrow if I get some time. My plan is to use the normal TFP USB cable, but plug it into a female/female USB gender changer that has been modified to short the pin. I'm almost positive that it'll work on my SGS3, and I don't see why it wouldn't also work for my TFP. I'll report back.
Nevermind. I now see that the TFP USB end has five pins, so they won't match up with the 4-pin female USB port. Oh well...
TFP and OTG
Does anyone know if the OTG will support a USB hub?
gtan2589 said:
Does anyone know if the OTG will support a USB hub?
Click to expand...
Click to collapse
The TFP doesn't have OTG, it's a regular USB host.
So yea, it will support a hub because it's a standard USB device class, with its driver already part of the kernel.

Dock connector is longer: why

Hi,
Does anyone has any idea why the micro-USB connectors which are used to connect a HDMI or VGA cable to the micro-USB port of the Samsung Galaxies are longer than let's say a data micro USB connector?
I've tried a micro-USB extension cable, and they don't work with these video-output connectors because they're too long. When I looked inside the connector I noticed that all the connection points are way down the connector, and that the upper part is just extra. So I've tried filing off the upper part. Now it charges the phone, but still no video output.
Thanks!
Never mind, just found an answer to my question
Apparently the dock / video out connectors are 11 pin micro USB connectors. The data and charging cable connectors are 5 pin.
Now to find an extension cable for that. I wonder if this excists.
It would be much easier to find HDMI/VGA extension cable rather then the 11 ping micro usb.
golalmo said:
It would be much easier to find HDMI/VGA extension cable rather then the 11 ping micro usb.
Click to expand...
Click to collapse
Indeed, but the problem is that I want to extend the dock connector so I can put my Note 3 next to my dock to put it in landscape.

Dual screen magnetic adapter not work with OTG?

I tried to hook up a game controller via the OTG adapter and it appears to not send any power out from it. Even with a USB thumb drive and other USB C adapters, nothing seems to work. Has anyone else noticed this? You can transfer data via the cable just fine, but I find it strange it doesn't send any power through the plug.
Have you tried connecting it the other way round?
tomixnscale89 said:
I tried to hook up a game controller via the OTG adapter and it appears to not send any power out from it. Even with a USB thumb drive and other USB C adapters, nothing seems to work. Has anyone else noticed this? You can transfer data via the cable just fine, but I find it strange it doesn't send any power through the plug.
Click to expand...
Click to collapse
I noticed the same thing. I believe it's because once it comes out the other side with the 5-pin adapter, it is then reduced to the old micro-usb specification, which uses 5 wires. True USB-C connection has like 20 or 24 pins. I was able to get a couple very basic OTG of things to work, like a mouse and a thumb drive. BUT HERE IS THE CATCH - The mag connector has 5 pins, reduced from 20-some on the C connection.. so true USB-C connection is no longer possible once you get on the other side of the connector. So the trick is to NOT use a USB-C OTG when it's in the case with magnetic adapter. You must use a Micro USB OTG with a Micro-to-C adapter attached to that. Even so, not everything worked just by sticking on the Micro-to-C adapter.. Mouse and a thumb drive worked, but my ethernet adapter and VGA/HML/HDMI adapters did not. Out of the case, I can use my USB-C to HDMI cable to display on my TV. But same cord does not work with the magnetic adapter with the case. It is simply not possible because the reduction of contact pins from phone to case to magnet.. One more thing to consider, if you're trying to do anything other than charging, make sure the magnet is on the right way.. there's a little logo it should be in the front.
If I can come across a spare or broken Dual Screen case, I'd be curious to take it apart and see if it would be possible to rig it up with a better plug for the case.. find which wires go to the workings of the DS and leave them intact, but then try to replace the magnetic pins with a female C plug that has all the contacts intact still..
Seymour_Asses said:
I noticed the same thing. I believe it's because once it comes out the other side with the 5-pin adapter, it is then reduced to the old micro-usb specification, which uses 5 wires. True USB-C connection has like 20 or 24 pins. I was able to get a couple very basic OTG of things to work, like a mouse and a thumb drive. BUT HERE IS THE CATCH - The mag connector has 5 pins, reduced from 20-some on the C connection.. so true USB-C connection is no longer possible once you get on the other side of the connector. So the trick is to NOT use a USB-C OTG when it's in the case with magnetic adapter. You must use a Micro USB OTG with a Micro-to-C adapter attached to that. Even so, not everything worked just by sticking on the Micro-to-C adapter.. Mouse and a thumb drive worked, but my ethernet adapter and VGA/HML/HDMI adapters did not. Out of the case, I can use my USB-C to HDMI cable to display on my TV. But same cord does not work with the magnetic adapter with the case. It is simply not possible because the reduction of contact pins from phone to case to magnet.. One more thing to consider, if you're trying to do anything other than charging, make sure the magnet is on the right way.. there's a little logo it should be in the front.
If I can come across a spare or broken Dual Screen case, I'd be curious to take it apart and see if it would be possible to rig it up with a better plug for the case.. find which wires go to the workings of the DS and leave them intact, but then try to replace the magnetic pins with a female C plug that has all the contacts intact still..
Click to expand...
Click to collapse
Thank you @Seymour_Asses ! I saw here https://twitter.com/konic0s/status/1202966945693220865 that LG G8X supports USB-C to HDMI adapters but I didn't know if it also worked with the Dual Screen case but now I know it doesn't, thanks for the information, very helpful ! :good:
BTW I think that when you connect the Dual Screen case to the G8X it uses the dedicated USB-C high speed pins of the G8X for video-out so these pins are not available anymore for other HDMI out, I'm not sure about it and don't have any proofs but it seems you are right about not enough pins on the mag connector.
If i remember correctly, the manual states that most USB-C functions wont work though the dual screen case. I think there was some speculation that its due to most of that bandwidth being used for the second screen.
Quite simple: the Mag USB-C adapter is for charging only. It drives me mad as i have a professional USB-C headphone that I use for conferencing.
But I understand the reason: when in dual screen, the USB-C data connection is in use dor the second screen, enabling the USB-C connection beyond that requires a hub to be built in the case "before" the DS connection (so it wont work building it in the dongle itself).
I wish LG went with a Pogo connector on the bottom or on the side to activate the DS case. This would have made the chin slimmer and freed up the USB-C port.
Anyway, it is what it is now, and i will not trade my LG G8x DS for anything at the moment... Until maybe that Surface Duo phone for which I might need to sell a vital organ ?

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