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Please question

It´s a little hard to have the serial cable. I m trying unlock make a strange combination :
serial port pc + serial female to ps2 + ps2 to usb + usb cradle xda. It works ? because I cann´t write in hiperterminal.
Thank you

I don't think USB mode works
I am not sure if I understand this right but my guess is you are using some sort of SERIAL to USB converter :?: to make this work.
I don't believe this will ever work with the current unlock solution because in http://www.xda-developers.com/manipulator/ the developers write that CURRENTLY we need a serial cable for the unlock.
So no matter what kind of converter you will use on the other side you'll still have the the USB connection on the XDA side and that is what really counts.
Robert[/url]

Thanks
Yes it was that converter. I dont try anymore. Thank you very much for your answer.

Enable webtop without dock?

Anyone figure out how to get webtop to work on an LCD monitor without the dock? My dock didnt ship yet and I want to test it out...
Thanks.

if it won't give you a prompt when an HDMI cable is connected, then i'm betting that they are telling the phone it's in the dock with a certain resistance on the USB connector. many manufacturers do this to allow devices to know when it's connected to an official accessory or not. For instance, my contourHD helmet cam will charge and record at the same time only if the official usb charger is used. If you use any other one it just charges and refuses to record. there is some talk of it in the USB wiki page
http://en.wikipedia.org/wiki/Universal_Serial_Bus
If someone could figure out the resistance value on an official dock (assuming this is in fact how it's done) you could wire up your own USB cable to trick the phone into thinking it's in a dock.
that's my only idea at the moment.

Figured maybe it was a magnetic trip... couldnt find anything :\

I stopped by Best Buy/Radio Shack after work today to try and find a 'USB 2.0 A to Micro B Female / Male Adaptor' (google it, it's my first reply so I could not post the link).
I was going to try and use my existing laptop dock so I could have additional USB inputs to connect the USB/Mouse, and then use the HDMI cable that came with the phone to plug into my monitor.
Is this something that most likely will not work, because of the reasons stated above?

iaregalado said:
I stopped by Best Buy/Radio Shack after work today to try and find a 'USB 2.0 A to Micro B Female / Male Adaptor' (google it, it's my first reply so I could not post the link).
I was going to try and use my existing laptop dock so I could have additional USB inputs to connect the USB/Mouse, and then use the HDMI cable that came with the phone to plug into my monitor.
Is this something that most likely will not work, because of the reasons stated above?
Click to expand...
Click to collapse
Don't buy it just yet.
In the Dev section, they're working on allowing the Webtop to be accessible sans dock.
Here's a link to the thread:
http://forum.xda-developers.com/showthread.php?t=963938

How To Make Your Own OTG Cable : Video Tutorial and Demo of USB Mouse

So if you are like me. Waiting a week for your OTG cable to come to your doorstep is not an option. Especially if I can make one with existing cords and equipment I have laying around. If soldering happens to be one of your skills then this is the guide for you.
This is what you need.
Micro USB Cable … Really you need the Micro USB Head
Female USB Cable Head … Pulled mine out of an old computer
USB Cable … to connect the two heads … I used the cable from the Micro USB
Solder Kit … connect the Heads to cords
But this video puts everything in context and you also can see how the mouse works on 3.1
http://youtu.be/COkLEJGo6vo

Orrr get a bluetooth mouse
Sent from my 4G LTE Thunderbolt using XDA Premium

DroidHam said:
Orrr get a bluetooth mouse
Sent from my 4G LTE Thunderbolt using XDA Premium
Click to expand...
Click to collapse
True. Which I have, the USB mouse was just to show it works.

Nice to see you here too sleeplessninja!
Followed your tut, gonna do my update, I can't wait for my OTG cable from china to arrive, its almost half way but I can't wait any longer! thanks dude. Off to flashing some updates.
EDIT:
Finished installing the update, all fine and dandy!! tried the camera with the xoom, F-awesome! kinda slow but thats what you get off 18Mpix pics, tried a mouse, kb, all worked perfect...

DroidHam said:
Orrr get a bluetooth mouse
Sent from my 4G LTE Thunderbolt using XDA Premium
Click to expand...
Click to collapse
Can't use bluetooth for flash drives or the ps3 and xbox game controllers (or the other ones the 3.1 update lets you use) XD
I think I'll try this guide when I get home tonight.

sleeplessninja said:
So if you are like me. Waiting a week for your OTG cable to come to your doorstep is not an option. Especially if I can make one with existing cords and equipment I have laying around. If soldering happens to be one of your skills then this is the guide for you.
This is what you need.
Micro USB Cable … Really you need the Micro USB Head
Female USB Cable Head … Pulled mine out of an old computer
USB Cable … to connect the two heads … I used the cable from the Micro USB
Solder Kit … connect the Heads to cords
But this video puts everything in context and you also can see how the mouse works on 3.1
Click to expand...
Click to collapse
I haven't watched the video yet, but couldn't you also just use a USB extension cable instead of a separate usb cable and female usb port? Using an extension cable instead you could just replace the male end with the male micro usb and use heat shrink to make it more aesthetically pleasing.

Congrats to OP for the DIY job. My preferred method would be not to cut up the cable, but by shorting pin 4 to pin 5 directly at the shell. This is easiest if all 5 pins are present (sometimes either pin 4 or 5 is missing), as you can simply bridge the two pins with a bit of solder, and quickly apply heat to the connector shell to melt it in place. If one of the pins is missing, then things get a bit more difficult.
The solder bridge wouldn't last for too many insertions, but it should be more than good enough until the real host cable gets to you.

Made the cable well kinda i used a adapter to convert male to female should this still work or does it need to go straight to female?

brilliant guide, used a different style on mine but this guide is solid gold, thanks very much

Great post, i used your method with good results
Probably more expensive than an OTG adapter, yet I found a supplier of micro usb plugs with solder tags, more useful perhaps in a DIY dock?
http://ntcdistributing.com/products/usb-connectors.htm?gclid=CNnGtN-U7K0CFZQgfAodLQvL5g

machina77 said:
Great post, i used your method with good results
Probably more expensive than an OTG adapter, yet I found a supplier of micro usb plugs with solder tags, more useful perhaps in a DIY dock?
http://ntcdistributing.com/products/usb-connectors.htm?gclid=CNnGtN-U7K0CFZQgfAodLQvL5g
Click to expand...
Click to collapse
if you have the bits lying around then its very useful. If your having to buy the components then its cheaper to buy the cable. Like many of others on here, i have thousands of usb cables so was easy for me.

D.i.y usb otg adapter/cable

Hi,
I made my own usb otg adapter from a plain usb a to micro b adapter. You have to connect pin 4 /which is not connected/ to ground to fire up host mode.
Edit: It is not easy to dismantle a usb connector or adapter and it requires soldering. So I guess anybody with the necessary skills will find the pin on his own. I will not post photos because my solution is far from being pretty.
For everybody else: the nokia USB OTG cable is wired the same way so it is very likely that it will work. (on Hungarian forums I saw references that it works, but I can not guaratee it.)
Tommorow I will go buy one and report.
USB Host mode will allow to connect USB pendrive, mouse, keyboard etc. to the SGS II.
Sent from my GT-I9100 using XDA App

richyy74 said:
Hi,
I made my own usb otg adapter from a plain usb a to micro b adapter. You have to connect pin 4 /which is not connected/ to ground to fire up host mode.
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
this is very useful for people like me who knows how to solder things, but for the people who have absolutly no Idea what you are talking about, you should add more details/pictures to the OP so the people who doesen't know much about electronics know what you are talking about, and what benefits it brings for them.
I myself will probably make one or more, so I don't have to always take my USB OTG with me all the time.

kaukassus said:
this is very useful for people like me who knows how to solder things, but for the people who have absolutly no Idea what you are talking about, you should add more details/pictures to the OP so the people who doesen't know much about electronics know what you are talking about, and what benefits it brings for them.
I myself will probably make one or more, so I don't have to always take my USB OTG with me all the time.
Click to expand...
Click to collapse
May be you dint know about this thread
http://forum.xda-developers.com/showthread.php?t=1092493
This was explained with pics a long time ago

Yeah sorry. I never saw that. Thanks.

richyy74 said:
Yeah sorry. I never saw that. Thanks.
Click to expand...
Click to collapse
Why be sorry. This forum is to help each other out.

OTG Cable USB (B) to Micro USB (A) Powered with AAA batteries
As one knows, Samsung has promised a HMI Cable
You noticed it is not only a cable but a box out of which you may plug in an extra power supply.
The obvious reason is if the passive monitor does not furnish 5V, the phone will rapidly be out of power.
Now you know that to obtain video rather than anything less, Pin 4 (sense) and 5 (Ground) of micro USB (male A) must be connected with a 365K resistance.
I suppose the dock Samsung is selling for I9100 (yes, I have it) is grounded at 1000K as it provides audio with remote, and yes, the dock provides power supply via extra micro USB as well.
I come to my point: If I want to access any USB data On the Go, I need a cable OTG with 2 ports: USB 2.0/3.0 (female, B sided) to a micro USB (male, A sided, grounded but with no resistance = 0K). Many of them exist on the market out there.
But it is quite impossible to use because of lack of power supply in the passive device (let’s say a handy 1T HDD usually powered via Host connexion !
Would it be possible to insert some sort of receptacle for AAA battery in the middle of such a cable to provide for power while you are for a long time out of access to an electric plug ? Does such a cable exist somewhere to buy ? What would be the sheme to mount this ? HELP !

Instead of shorting pin 4 and 5 from within the cable head, would it also be viable to short them from within the device itself? Say if I disassembled the phone to access the back of the female usb micro connector and soldered the pins. Would there be any damage caused if the permanently shorted pins 4 and 5 (within the device) is connected to a charging adapter/PC?

please i neeeeeeed help

i try to connect a usb flash memory to my tab 2 and i follow a trick
i get female-to-female usb adapter and connected it to the galaxy tab 2 usb adapter (that comes with it in the box)
then connect to it a usb flash memory , but my tab didn't read any thing
so after searching,using my avometer and making tests between my tab and my lab i concluded that:
-the female-to-female usb adapter is working probably
-there is no 5v output on the usb male adapter so i think because that the terminal device can't be read
please help me, any one can explain that?
is the manufacture close that property or my android is crushed or must be a microcontroller in otg to work,.... or what??

hey ever body , where is the developers
where is the genius people
i need help

My guess is they sell an official USB reader for a reason...
Sent from my SGH-T679 using xda app-developers app

mon3esh said:
i follow a trick
Click to expand...
Click to collapse
Here is the trick I used:
http://www.ebay.com/itm/300701358749#ht_891wt_1037
Open wallet, buy fix
:silly:

The following link shows how to make your own OTG cable (for another device). http://tech2.in.com/how-to/accessor...sb-otg-cable-for-an-android-smartphone/319982. So there is some additional connection b/w pin 4 & 5 that makes it works as OTG cable.
Is it worth the hassle? I am not sure. I got OTG cable for $0.99 in ebay. Before buying it I tried female USB cable like OP and failed.

thanks for every one tries to help
i found the reason
the secret in the 30 pin connector
which its pins are grouped each group is serves another connector in the another side of cable
so the group of usb has a pin named otg responsible for turning your cable to otg cable
so in the usb male connector it is not connected
so i think that is why samsung didn't built in its tabs a micro usb port and built this port instead it "to can market its accessories"