yashsingh1/xdaforums huggingface dataset:
[Motorola Droid RAZR] Karmarock:
Still no success!

@Kholk

I'm quite frustrated now.

After 2 cables made according to OTG specification + external power and 0 success I was nearly to give up.

My suspect is my soldering ability lacks. In particular I ruined some way the micro usb plug due to the fact that its very small and maybe I overheated it someway so that the connectors didn't work properly on the Razr side.

Hence I decided to go the simple way.

I have a Samsung ET-R205UBEGSTD connect cable. Is it an OTG cable right?

Hence I just made an USB Y wire who got just power from any charger and added to the Samusng one (actually any powered USB Hub could have worked too, but I didn't have one).

Then checked all of the wiring and were OK.

Even more checked the Y cable pass through part (not the power one) syncing the razr to the Pc and it was OK!

Now I had two perfectly working cables!

Then made like this:

1) Connected the Samsung cable to the Razr.

2) Connected the power side of the Y cable to a 2A charger.

3) Connected the Y cable to the Samsung one and it started charging the razr.

4) Plugged in an USB pen and its light switched on.

OK, here we are. Now I should just browse into the /mnt/usbdisk_1.1 folder and find the USB pen's content!

.... NO WAY!!!

Tried with 2 FAT32 and 1 FAT16 pens and nothing!!!

Please Kholk how do you let the magic happen???

My Razr is unrooted and is the EU version!

My only doubt is related to the Samsung OTG cable. Maybe is it not a real OTG cable and doesn't shorts ID with Ground?

I had a real hard time checking anything on the micro usb side of the Samsung! (actually on any micro usb plug).

At the beginning I had confirmation with my tester, but the second time I checked actually seemed ALL OF THE FIVE CONTACTS shorted to the shield (the metal part of the plug) and hence couldn't say anything anymore. Tried also to fit inside a plastic to separate the contacts but actually they were still all shorted!!!???

Used again the cable with the Razr and it was working properly (at least charged it).

If it were not an OTG cable of course my setup were wrong and I have to substitute the Samsung cable with a real OTG.

Damn! I'm really stuck!

Did anyone else succeeded in any way?
[Motorola Droid RAZR] kholk:
Try like me.

Buy an USB to MicroUSB adapter (MicroUSB male to USB female) and open it.

Solder the ID PIN to Ground.

Buy an externally powered cheap USB hub (5 euros over ebay...) and connect the hub to the MicroUSB to USB adapter. Note that my HUB has got a port that goes ONLY to PC (can't connect devices on that port).

Connect the USB HUB power (mine will light up a blue led).

Connect a keyboard to the already powered USB HUB.

Connect the adapter to the RAZR.

This works for me and you should get all for like 10 euros at all.

P.S.: My adapter has been modified and it has now got three operational modes. (Motorola Factory Cable, USBOTG and normal operation)
[Motorola Droid RAZR] asheg:
guys so can any1 sell on ebay working OTG cable for droid razr, pls?

just make and sell it, we will buy :)))
[Motorola Droid RAZR] Karmarock:
Success at last!!!

Used an external HUB and a new OTG cable [credits to Kholk].

Didn't worked with the external power from the HUB (actually didn't recharge the Razr).

Worked using Y wire.

Could only access pendrives when connected to the HUB.

Very strange as I supposed it should also work just connecting directly any memory stick to the OTG cable (powered with the Y cable)! Instead an USB HUB is required!

Checked back and actually this configuration works also with the samsung cable (this confirms to me its a real OTG cable, I was so desperate that came to thinking it was just plain plug converter).

So maybe I made 3 working OTG cables, but was checking the wrong configuration!

To my great surprise the Razr dretects when the device is connected (just wait for a bunch of seconds) and lets you also explore it and unmount it even without using webtob (just select the option from the USB Icon that will appear in the upper bar).

The good news (not to me as I wasted a lot of time soldering) is that this setup can be obtained with standard cables:

-Any real OTG micro USB male to USB female

-Any USB male to mini USB male Y cable with extra USB male just for power (standard for some external HDD)

-An external USB Hub with female mini USB in.

Before updating my first post will do some more experiments and let you know about the findings.
[Motorola Droid RAZR] kholk:
Your USB HUB's +5v isn't connected to the port you're connecting to the phone (that we'll call "MASTER" from now). Mine has got a power IC that detects if the connected device wants to absorb power or not (if connected to a PC, the USBHUB takes power from USB. If connected to, for example, my RAZR, it gives power to it).

You can achieve a good result opening your USBHUB and connecting the required pins of the MASTER port to the 5V USBHUB power input, but remember to put a button on it to disconnect the pins without desoldering anything if you don't want to dedicate the HUB only to your RAZR.
[Motorola Droid RAZR] DarkestSpawn:
Im hoping someone can shed some light on my question. I have a droid bionic dock. When I plugged my RAZR in it worked just fine. I tore open the casing to extend the connecting wires out so that the razr did not sit in the dock upside down.

Now I no longer can get it to work. The dock had 7 wires running to the orig micro male cord. (See picture, also I dont know what the two extra wires are on the right that are unshielded which both touch each other near the circuit board as they both are in a short black shielding) I have tried all sorts on configurations to attempt to get this to work again with no success. I tried wiring this like what kholk said but with no success. Anyone able to assist?
[Motorola Droid RAZR] scorbut:
Thanks, that's work also for me
[Motorola Droid RAZR] pajn:
The reason that we need a usbhub is probably becouse of the vold.conf as I suspected earlier. It looks to be configured to be used only with a usbhub.

Unfortunately I don't know how to change this :(
[Motorola Droid RAZR] kholk:
You need an usbhub only because of the external power.
[Motorola Droid RAZR] pajn:
You could create a powered usbcable with some easy soldering.

But it were maybe the power issue Karmarock ment?
[Motorola Droid RAZR] scorbut:
Yes, i know. I can use my external usb wireless keyboard and mouse set with my Varta battery power suply(I think that it's this: http://www.redferret.net/?p=15804)
[Motorola Droid RAZR] KurtzmannDK:
Thanks

Thank you very much for some very usefull tips.

If anyone still can't get it to work, I uploaded a video showing how I got it to work.

Just search youtub for "razr usb otg" (cannot post external link, because i am new to xda)

(It also works with mouse and keyboard)
[Motorola Droid RAZR] Karmarock:
In my experience, using an USB cable which gets power from an USB charger (Y cable), is not enough.

I had success only using an USB HUB!

My Y cable works as actually It is the means I use to power the USB HUB!
[Motorola Droid RAZR] Karmarock:
Well done!
[Motorola Droid RAZR] jy1022:
Thank you!

Works great with my razr!
[Motorola Droid RAZR] PerKiller:
Wow, cool

Alot of technical terms here, about USB, USB-cables etc. and I don't know much about them tbh. But I love this idea! I get my Motorola Droid Razr tomorrow (hopefully :D) and what I want is a cheap (and easy) way to connect: keyboard+mouse.

So is that possible without spending 100$ on a Lapdock?
[Motorola Droid RAZR] PerKiller:
Hello, sorry

Sorry I just saw your youtube video and it seems really simple! You say it works with mouse+keyboard. I am wondering, don't I need anything on software-side to make it detect and allow usage of a standard mouse/keyboard, or is that built into the software? Or can I only use it in Webtop mode?

Also, I am looking at some cheap USB-hubs, does it really matter what v. USB I use? I notice v 2.0 is really cheap, 3.0 abit more expensive..

Thanks for any answers! (Hopefully I can make this work before New years eve which will be spent at work, so I won't have the worst new years eve ever XD)
[Motorola Droid RAZR] smiak:
the whole touch screen is not working together with OMG cable

I just tried OTG cable from ebay together with usb 4 port usb hub with an external power adaptor 5v 500ma. Motorola Razr sucessfully found an external flash drive, its charging but the whole phone touch screen is not working while connected!!! 4 bottom keys, power and volume rocker buttons are working though.

Could you please advice what might be the problem? :confused:

I have UK XT910 version with native firmware(I only rooted it).

If I unplug power button display starts reacting but flash drive goes offline :(

The cable can be found on ebay if you type this: "Original Micro USB male to USB female Host OTG Cable"
[Motorola Droid RAZR] smiak:
The issue is now resolved

It turns out Razr don't want to accept chinese power adaptor which comes with usb hub (I tried even 2 of them 500mA and 1500mA with the same outcome).

So I used male to male usb cable with original power adaptor and plug it directly to the hub. In this way everything started to work!

I even connected flash drive, mouse and keyboard at the same time. Only one question remains: how to swich keybord language on usb keyboard? Shifting space key is not an option for the keyboard! Therefore its imposible to type ukrainian via usb keyboard.
[Motorola Droid RAZR] Szadzik:
Have you tried going into the settings and checking settings for the USB keyboard? Settings> Input and Keyboard or sth like that.
[Motorola Droid RAZR] deadmanjokes:
:eek::eek:

great news mate, will try it immedeatly

:D
[Motorola Droid RAZR] casaroli:
Hello,

The OTG port on the TI OMAP4430 is USB 2.0 *only*. It needs a powered USB 2.0 HUB with integrated Transaction Translator, to translate to USB 1.x. Also, it does not provide any power and you do not need to provide power to it. Its a hardware "feature". I think it should work if you use the modded cable connected to a hub.

Having the HUB to charge the Razr is a different thing, that has nothing to do with USB 2.0 OTG, and USB HUBs or so. It has to be manually triggered by the OS, and I think maybe Webtop does this (or not).

Also, not every HUB do provide power to the upstream port on the USB, so you might want to check before. Trying this.

Perhaps we would like to test force running webtop (with Nebtop, maybe). Or use the inexpensive Webtop adaptor that came with my razr?

As soon as my cable arrives, I gonna test it here and post some more comments.

Thank you
[Motorola Droid RAZR] ajwillys:
This is awesome! I just bought all the parts necessary to build this on ebay. I plan on fashioning it into some sort of housing/dock so its more of a permanently assembled solution. Thanks for posting this! If what I come up with is worthy, I'll post a photo.
[Motorola Droid RAZR] szuwx:
Hi, i'm having small problems with this otg. I've done otg cable from nokia micro usb to usb, works on nokia e7. I connected razr like this, otg cable-usb connector(female usb from both sides)-hub. Hub is modecon ufo with 7 usb ports, on begining it didn't worked bcs it didn't give +5 on cable that is usually conected to pc. So i soldered +5 from one of povered ports to this vire. When it's connected to razr phone starts to charge, after connecting mouse to hub it's working, but after connecting any usb memory stick ar disk im getting error "sorry, aplication usb (procedd com.motorola.usb) was stopped suddenly. try again". Mouse is still working but storage devices no. My phone is only rooted. I'm on 651.73.30.xt910.nonefigsretail.en.eu
[Motorola Droid RAZR] casaroli:
what is your USB HUB IC part no?
[Motorola Droid RAZR] szuwx:
It's based on alcor au6256 . I installed USB Host Controller and it detects both logitech controller for mouse, and and pendrive. Mouse is still working but after connecting any storage device still getting same app crash (app usb).

Working perfectly fine now, after updating from 651.73.30.
[Motorola Droid RAZR] codenamefly21:
I was finally able to hook up a usb hub to my bionic and read usb drives. But for the sake of portability i made a rechargeable battery powered usb hub. It works great.
[Motorola Droid RAZR] Niseg:
I've got the Y cable and OTG cable I got from ebay and started my own testing. I'm using a fairly weak battery as a power sources (5.6V 350mAout 900mAh). These are the devices I tried so far and their functionality

-Keyboard - I tried it today after updating to 65.1.40.Retail.en.IL (Israeli) , set the external keyboard to Hebrew (language and settings menu) and it worked well including switching language to English using alt-shift .

- Mouse - supported natively like bluetooth. I had a problem with one mouse that didn't fight well with the phone for power.

- Disk on key - No problem sandisk 8GB (that's the brand they sell here)

- 500GB external Hard drive (WD elements 2.5" ) - I had to plug in the hub to a 2A~ power supply (it doesn't push power into upstream port so the battery was still there ) and format the drive to fat32 (using fat32formater program). the phone didn't like exFAT for some reason and it didn't recognize the drive when it was NTFS.

- Ethernet - We tested it here at work but it didn't work. Someone told me it works. I know you can connect Ethernet through an HDMI adapter .

My current problem is that my battery is weak and the phone likes to gobble up current from it not leaving much to the devices. Is there a way to limit the current draw from the phone?! I'm going to get a more powerful 2A output battery soon and I bet I can run a hard drive with it but it would be kinda bulky to haul around compared to what I have now .
[Motorola Droid RAZR] codenamefly21:
I had the same problem with the battery draw all I did was put a resistor inline with the power wire running to the phone I use a 4ohm. The resistor cuts down the amperage draw but not the voltage. The phone doesn't actually need to charge just a power signal coming in.
[Motorola Droid RAZR] nickrulez13789:
Guys need help.. I followed the instructions to prepare a custom otg cable and managed to build one.. MiniUSB male to USB male(power) and USB female.. I checked all the connections and everything seems to be alright. Now wen I connect the male USB to power, mini USB to phone and female USB to pen drive/ hdd, the phone seems to go to charging mode and the light of my pen drive/hdd starts glowing.. And that's it.. nothing seems to happen. But wen I connect my mouse, my razr detects it and seems to work flawlessly... I dont know what seems to be the problem. By the way am using 5v 1A wall charger for power.:(
[Motorola Droid RAZR] arisgoku:
now with ics are there any bumps on this?
[Motorola Droid RAZR] Jakefreese:
Have y'all come across a battery setup for this? I want too be able to tether to my canon 7d camera and use dslr controller app. Thanks!
[Motorola Droid RAZR] jmdearras:
This works just fine. Comes with a power cable, mount more than one at a time.

http://www.ebay.com/itm/Black-Samsu...943&pid=100015&prg=1006&rk=1&sd=271073499354&
[Motorola Droid RAZR] dbreezy187:
I'm a d4 user looking for a cheep way to use web top with USB mouse and keyboard... with this and the mini HDMI do you think it's possible... as the d4 and the RAZR are so much alike...
[Motorola Droid RAZR] LeoArg:
Hi.

This OTG is not Worked.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110954513597&ssPageName=ADME:L:eek:U:US:3160

My Android is 4.04 rooted.

Greetings.
[Motorola Droid RAZR] kevintstephens:
I successfully got OTG functionality working! It took a little modification of some standard USB cables, but here's how I did it:

I ordered a USB OTG cable (Micro USB male to USB Female) from Ebay for $1.99, including shipping.

I had a USB extension cable (USB Male to USB Female) that I purchased from the dollar store (for $1.00)

I had another outdated USB cable (Mini USB) that I no longer used

Cut the USB extension cable in half and strip all 4 wires inside (on both cut ends).

Then cut off the Mini USB end of the Mini USB cable. Strip the 4 wires (mine was strictly a charging cable, so it only had 2-red and black).

Connect the white and green (data) wires of both ends of the USB extension cable, being careful to insulate each wire from touching one another.

Connect the red and black wires to each other as well, and connect the black and red wires from the third cable (JUST the black and red wires are needed).

Voila! Now plug the OTG cable into your phone, and use the extension cable as a normal extension cable to connect your USB devices. Then take the extra cable (the one with just the black and red wires connected) and plug it into your USB wall charger. There you go! If you did everything right, this should work perfectly!

I just wrote this entire post using my OTG setup with a hub, a USB mouse, and a USB keyboard.
[Motorola Droid RAZR] KHOdin:
any way to get USB otg working without external power ?
[Motorola Droid RAZR] kevintstephens:
I don't think so. From my experimenting, the RAZR won't detect any external devices (even those externally powered such as hard drives) unless it is receiving power as well.
[Motorola Droid RAZR] Draxin:
EDIT: Need to read more carefully before asking questions :)
[Motorola Droid RAZR] xinux87:
The OTG mode works in 2.3.6 android version Too?

Thanks ^^
[Motorola Droid RAZR] Olao99:
Has anyone tried this one:

http://www.ebay.com/itm/Micro-USB-H...100159?pt=PDA_Accessories&hash=item1e74b5f2ff

Or this one?

http://www.ebay.com/itm/Micro-USB-H...970640?pt=PDA_Accessories&hash=item2577ef70d0

Do any of those work?
[Motorola Droid RAZR] codenamefly21:
Battery powered usb host adapter

I've been working on this forever partly because of laziness but also because I don't have much free time. This device uses an iphone battery with a stepup circuit to 5v wired to an on/off switch. I also built a charging circuit that takes a micro usb and has a red status light to show when charging and a green status light to show when its on. This unit will power any usb device including portable hard drives that only require power from the usb. Even though its been a long process it was fun making it. I built this to see if I could and also for my dad who would like to see picture from his wild game cam then and there at the camera copy it then wipe the SD card and put it back in.
[Motorola Droid RAZR] abs0lut3z33r0:
Does the otg functionality works under jelly bean ? I tried a HDD y cable with a card reader and its not working .

The cable posted by ola99 seems intersting
[Motorola Droid RAZR] MertDogan:
Thanks

Thanks :)

---------- Post added 26th February 2013 at 12:07 AM ---------- Previous post was 25th February 2013 at 11:48 PM ----------

I bought USB HUB with Adapter and connected to my XT910 but it did not work. İts charging but not connecting a mause or keyboard. I am using İCS. I think İCS doesnt allow connect a mause or keyboard with USB HUB..
[Motorola Droid RAZR] MarkelofRazr:
Any tut with pictures onn how to make OTG cable to work on our Razrs
[Motorola Droid RAZR] KuLiKo:
thanks for the tip :)
[Motorola Droid RAZR] agung_gitaris86:
make sure you have USB Y Split to make it work... because its need external Power 5v to work :D
[Motorola Droid RAZR] LeoArg:
Is are in e-Bay?
[Motorola Droid RAZR] X_Marine:
Hey thanks to (kevintstephens) and all, for sharing all the tips.

Don't have it up and working yet but shouldn't be long with the help I found here.

Many thanks

X/BillyD.. :good:
[Motorola Droid RAZR] sushil432:
otg , ppp widget

visit gsmplugin.com
[Motorola Droid RAZR] X_Marine:
Thanks but noting on the Razr there.

I did find a cpl cables but haven't had time to root my Razr and try it.

Thanks

X/BillyD..
[Motorola Droid RAZR] levitikus:
It works!
[Motorola Droid RAZR] Lzto1320:
thank you:o
[Motorola Droid RAZR] X_Marine:
Update, It's working quite well with a powered USB hub. I am running the "aMCA - Nr16 Mobile CA" software from play store to setup and control the 808 #16 camera. The same dev has another app for accessing the cam video via Razr. I'm also able to access thumb drives for file operations. This particular hub has 4 USB B, and one mini UBS plus small input for power. I run cable from OTG to the mini USB then I can access whatever I plug into the hub. Pretty sweet.

Almost forgot, this is on a Razr Maxx, XT(912), JB, still unrooted. :(

And the eBay OTG cable w/power cable.

Many thanks to all that contributed.

X/BillyD.. :good:
[Motorola Droid RAZR] Horgun:
Only Mouse and keyboard working

Hi, i really like this forum, it has really useful stuff.

I got it to work using only a Y cable and a power suply.

The thing is: it only works with a mouse and keyboard.

Is it possible that i really need to use a hub for it to work with flash drives ?

Thanks.

EDIT: I finally got it to work! I had to use a APP called usb host controller to mount it.
[Motorola Droid RAZR] brian999:
Has anyone tried the Fiio 7 or 7K USB DAC and Amp with their Razr via OTG? Does it work?
[Motorola Droid RAZR] codenamefly21:
This is what i bought and built my gadget with.
[Motorola Droid RAZR] kaitoukid93:
help

i'v read 9 pages but anyone can tell me does external usb or hard drive work? like playing the movie through the usb OTG.thanks
[Motorola Droid RAZR] codenamefly21:
Yes I have successfully used a 500gb hard drive
[Motorola Droid RAZR] kaitoukid93:
hell yeah! thanks
[Motorola Droid RAZR] ronson3ronson:
is it FAT or NTFS formatted?

i cannot get my ntfs-formatted ex-HDD to work
[Motorola Droid RAZR] codenamefly21:
You must be rooted and download an app from the play store that will allow your phone to mount an NTFS drive
[Motorola Droid RAZR] farhan76242:
i have the proper nokia cable which works on the Xoom but it wil not work on the RAZR (i assume) until like the Xoom a custom kernel can be installed to access this feature.
[Motorola Droid RAZR] Zymz:
Yay got it to work!

I just got a hand-me-down Droid Razr XT912 (Verizon) and decided to see if I could get OTG to work properly for me.

I have SafeStrap and LiquidSmooth 3.1 (Android 4.4.4) custom Rom "Rooted" on the phone at this point,

Using a standard power adapter plugged into a cheap OTG cable I ordered from China and connected to a "Plugable" USB 3 Hub, then Connecting the whole wire-y mess to my phone worked great, although I did have to install ES3 File Explorer to access usb devices I plugged into the hub, the phone couldn't see files on a FAT16 (standard FAT) formatted USB stick, it could see the stick, but it couldn't see any files on it, so I reformatted the Stick and it seems it can see files if the drive is formatted to FAT32 or NTFS, I haven't tried any linux formats but I'm sure at least some of them would work.

The phone charges while being able to also access files on USB drives connected to the Hub, so far I haven't been able to get any devices to work directly without the hub, but I could see one of the devices did have power from the OTG cable / Power Plug Combo, the ES File Manager can see devices directly plugged in without the hub but I get a "Sorry Operation Failed" message when I try to browse files on the USB Stick. I'll keep working with it and edit this to reflect anything else I figure out.

I'll add photos later, I can't right now though because I am a junior member ;) wouldn't want me posting something scary on my first day! =D

I've no clue if this will help anybody else researching this, but maybe it can. =)
[Motorola Droid RAZR] UAS specialist:
Was anyone successful with the XT912 Droid razr?

Never mind I see the above post
[AT&T Samsung Galaxy S II SGH-I777] daddyyankee1:
Hello index help my phone is showing modem vertion unknown

I install a custom kernel and it messup my modem how can I fix this please. Help
[AT&T Samsung Galaxy S II SGH-I777] Artimus009:
What custom kernel did you flash?
[AT&T Samsung Galaxy S II SGH-I777] daddyyankee1:
I dint know it said it will overclock the phone to1.8 just wit the kernel I don't know much about this
[AT&T Samsung Galaxy S II SGH-I777] daddyyankee1:
I put the stock kernel back and change all to wen it was just rooted and distilled not showing the modem version