yashsingh1/xdaforums huggingface dataset:
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
That's nice. lol I understand I talk a lot, but when it comes to things I must have, like more than 5gb of memory on a device that should have a few TB :P. It would be nice for others to try out things to see what works and what doesn't. Because to have a powered USB Device is kinda not the point of OTG "On The Go". But like someone figured out that one of his older Flash drives worked, so hopefully others chime in too.

If you wanna do that, you have my approval. Just make sure it suits what I did, "Dedicated OTG". or "Guaranteed OTG". Since that's what I was mainly working towards. This discussion thread is mainly to locate what works and what doesn't and the main OTG Capabilities of the Kindle Fire2. I don't plan on changing much else to what I have already done except adding a larger psu to the hub so it charges the device while powering the hub and its devices for my own personal gain. I want to keep this open so people can throw up what they have learned as well so the information is out there for others. I personally hate going into a device and not knowing.
[Kindle Fire 2 Q&A, Help and Troubleshooting] iytrix:
I should get an OTG cable. I have a small flashdrive, not sure about the name or brand since the size made it temporarily misplaced. It's the same size as the wireless receivers though for most modern mice and keyboard so it's SUPER small, which I actually wouldn't mind tucking the cable into my case, plus it's 32GB. The issue on PC, is the transfer rate is a little low, but that may be because it uses so little power, which I'm hoping.

Any good places to get an OTG cable?
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
Ebay, Amazon (great place for cables)

https://www.google.com/search?q=OTG...29,d.aWc&fp=4a19662fa4882be9&biw=1920&bih=965

Just a quick search. You can also make one, if space is an issue. You just need a MicroUSB and a female USB. Pin 5 gets soldered to pin 4 on the MicroUSB and bam! Making one would help with space issues since you can tuck the wires easier. If you are good at soldering.
[Kindle Fire 2 Q&A, Help and Troubleshooting] iytrix:
Is an OTG cable special or just F-USB and M-MicoUSB?

If it's just those, then I can go poke around Frys and Radioshack for one.

I don't know anything about soldering, how much is a good kit to get started? I think a friend of mine has one and knows how to use it, so I can ask him, but I realize it's something I should learn especially with the hardware mods I would love to do. If I can't find a cable in stores, or if it's special (I ask that because most employees at frys and whatnot aren't very helpful or knowledgable, so I don't want them giving me something that won't work, but if it's just those ends I'm looking for, I can do that) then I may just look into soldering my own and learning that. I see they're around $50 online but I don't want to screw myself over there.
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
You can chose a decent soldering iron anywhere from 15 to like 80 bucks. I recently saw some nice ones with adjustable power levels for good price. And tons of different tips. My brother Skorpn has the more expensive one that heats up fast and has adjustable power settings to fit any projects needs. Hr has a nice soldering station I wish I could use more. I however just have a cheap harbor freight iron with a fine tip from radio shack and I use the thinnest silver solder avail there as well. Flux is also a must.

Anyway. Otg mode is accomplished on the micro USB side. They have 5 pins instead of 4. The 5th is used for doing all sorts of things with the right add one tho. If you solder in a small wire to it and jump it to pin 4 which is ground, it turns on otg. Not really hard to do. You can make one decently. Just need a good micro USB cable and a female normal USB cable. Solder them together and then do the otg modifications.

Other than doing it yourself, they are very cheap. But if you have the spare cables, it doesn't hurt to play around.
[Kindle Fire 2 Q&A, Help and Troubleshooting] chris_m128:
I've got my USB mouse to work using otg cable, is there any chance using it could damage my kindle, this Mount app I use says it can damage the kindle because of the power output

Sent from my Amazon Kindle Fire2
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
I don't know what ap your talking about. But no. The Kindle Fire 2 only puts out half the voltage when in OTG Mode. So only certain things will work without additional power. Your mouse will work just fine, especially if its a wireless mouse, since the wireless device doesn't require hardly any power. Some other devices will work too. You don't need a mount app for using devices, only for Flash Drives. And so far out of every one I've used the best one is Chainfire's StickMount. Chainfire is the creator of Superuser.

Anyways, I'm not using a 2a charger to power my USB OTG Hub, and it powers all 4 devices and charges the device with ease. Cannot wait to have this thing installed.
[Kindle Fire 2 Q&A, Help and Troubleshooting] facelessloser:
OTG testing

After reading this thread I thought I would have a go and do some testing myself. so I found a USB y cable teamed that with a female to female USB adaptor so it would extend my OTG cable but allow me to pipe in some power (5v off a arduino) off the y cable. I have got my mouse working and USB flash drive but I cant get my Xbox 360 wired controller to work
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
You know the amperage of the power source you are using? It might just be not enough power. Because the device itself will take from it also. Its pretty much splitting it. Which is why I went with a legit Galaxy Tab 2a charger since its one of the most powerful chargers I've come across. I hope it works. Since bluetooth doesn't work on the OTG yet, I need the 360 controller to work. I will be trying a wireless controller and one of those Microsoft adapters soon. Hopefully it works! I'd love to play some video games in the car :)
[Kindle Fire 2 Q&A, Help and Troubleshooting] facelessloser:
You have a good point there, I haven't tested the amperage that comes out of a arduino but I don't think it would be much. I could try and hock up a iPad charger which I think is 2amp.

---------- Post added at 11:08 AM ---------- Previous post was at 10:34 AM ----------

I have just tested the Xbox 360 controller being powered from a iPad charging plug and now joy. It lights up but then goes off
[Kindle Fire 2 Q&A, Help and Troubleshooting] agentfusion:
I'm making my own otg cable tonight if the spare usb cable I found works for data and not just charging. Basically I have a female usb port on a cable that I used to splice in with an original Xbox controller plug to be able to use usb sticks as memory cards for my Xbox to be able to install gentoo Linux on my Xbox (original Xbox controllers are usb 1.0 with a proprietary plug type) so I know the female port works fine for data transfers.

Eventually I'll buy some plugs to solder onto both the usb and Xbox cables so I can yank the female plug from the otg cable and snap it right onto the Xbox plug instead of having to constantly re-splice them or buy a new usb extension cable for the female end/buy a pre made otg cable.

---------- Post added at 12:30 AM ---------- Previous post was at 12:27 AM ----------

Oh yeah, the point to my post was that I have three usb hubs, two powered one not, and a ton of stuff to test with my kf2 like a billion usb keyboards, mice, storage devices, and the one I REALLY want to get working, my afterglow Xbox 360 controller for minecraft pocket edition
[Kindle Fire 2 Q&A, Help and Troubleshooting] avathor:
Support any KF2 ROM Bluetooth Dongles ? (to use BT headset)
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
IDK how thats going. I don't think anyone is working on it since the KF2 doesn't have bluetooth to begin with. When I connect my cheapo BT Dongle, it doesn't allow me to turn the switch to on. However it does see the BT Dongle and thinks its a keyboard of some sort. Which would be nice because I have a really nice BT Keyboard for Android I wanna use.

Also would be nice to use PS3 Controllers. I'm going to attempt the wireless 360 controller with the adapter one of these days, whenever I can focus some cash in that direction. I really want a wireless 360 controller on my KF2 so I can play some of the higher end games as well as the older Emulated games. Just think its too cool :)
[Kindle Fire 2 Q&A, Help and Troubleshooting] mpr90:
Charging with OTG cable

I too am considering buying a KF2 for use in my car, but need to be able to connect two USB devices (hard drive and DAC) and simultaneously charge the KF2. I saw some posts earlier in this thread about getting OTG mode working with the nightly CM build, but not being able to charge at the same time.

I'm not sure if it is relevant (and I haven't yet bought and experimented with a KF2), but the USB OTG specification allows for five states to be defined by the resistance between the OTG A plug's ID pin and GND. See this Wikipedia article: http://en.wikipedia.org/wiki/USB_On-The-Go#OTG_Micro_Plugs.

I think this is what is being referred to on this thread. There is also a good thread about getting this working on the Galaxy Nexus7.

Unfortunately, it seems from these threads that not all manufacturers fully honour the USB Battery Charging Spec (v1.2). In addition, the infamous "Accessory Charging Adapter" (ACA) is hard to find. Read all about how it is supposed to work here on usb.org (Battery Charging v1.2 Spec and Adopters Agreement).

So, I would guess that first we need to buy/make a USB ACA; second, we need to make sure that the USB hardware supports detection of the ACA; third, we need to make sure that support for this is enabled in the kernel (this link is for the Galaxy S III, but you get the idea).
[Kindle Fire 2 Q&A, Help and Troubleshooting] jnow2:
nFiniti, what were the volt/amp ratings for the power source that you soldered into your non-powered usb hub? I found a 5v/1.8a power supply that I want to try to fire up USB OTG on my Kindle Fire 2, but since you said that sometimes your unit shows "charging" but most times not, I didn't want to try something that you already said was not charging. I know this defeats the true nature of OTG, but I need a power source so I can watch movies on my Kindle while I am at work.

http://xdaforums.com/showthread.php?t=1589762 For people looking to manufacture their own jig, this link is to an Epic 4g forum on USB OTG. Click on "jig setup" video and see how he made his. The only difference is in the power supply (Epic uses 5 volt, 0.7 amp while Kindle Fire 2 uses 5 volt, 1.8 amp).
[Kindle Fire 2 Q&A, Help and Troubleshooting] willieboya:
Why not set up a network and stream your movies to your kindle with xbmc. Thats what I do
[Kindle Fire 2 Q&A, Help and Troubleshooting] jnow2:
I work in a factory that is trying to ban even cell phones because management claims they interfere with machinery. Lots of (less than legal copies) of movies going around on USB flash drives....this would be easier. But thanks for the suggestion!
[Kindle Fire 2 Q&A, Help and Troubleshooting] SilentlyScreaming:
I've been following this thread with interest. Re power supplies and portability, has anyone considered using external battery packs (as in ones with a USB socket to power your phone/mp3 player/anything USB rechargable)? They range in size (and obviously capacity) from credit card width & length (though not thickness :) ) to proper bricks. Whilst not ever lasting, they do seem to offer a chance to remain vaguely portable, and obviously can be recharged when you get access to a mains point. I ordered a handful of OTG cables when I got my Kindle Fire 2, but will need to wait until I flash a new ROM before delving too deep. That said, none of the cables seem to turn on the activity light of an old 512Mb thumb drive I own, I'll try my wireless trackball receiver sometime.

Anyway, apologies if the battery pack approach has been covered in this thread and I somehow missed it.
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
Well I have thought of this, Setting up some small "Hotspot" or Wireless Router in my vehicle connected directly to a NAS Device, I would have to figure out how to get internet to that router also. Since I'm using my phone as a hotspot when I'm out and about. I know I can do the same with my phone, Stream from my phone to the tablet but its too much of a hassle. At least for my specific situation.

Plus Movies, and Music isn't my concern. I usually make a playlist of all my favorite songs, and then import them into Advanced WMA Workshop, and I tweek the quality, making all the audio files 96kbs, Stereo, and so fourth dropping the file size down almost half. 800 Songs, 2gb. My main concern is video games and things I can connect. Which is why I need the power and OTG Capabilities I'm working with.

Ohh noooo. Thats very good. Esp if people can start developing some sort of wireless Powered OTG Cable. It would help for a true OTG Experience, may be a little bulky compared to just connecting something up to the device through a cable, but we have the short cable anyway. Thats awesome. It shouldn't be too hard either. The power is on the two outer pins (USB Pinouts all over google) and you could easilly take an OTG Cable and hack in a "Wireless Travel Charger" .

I like where thats going. Good Idea's.
[Kindle Fire 2 Q&A, Help and Troubleshooting] nFiniti:
The new Power Source I'm using is a Verizon Galaxy Tab Car Charger. I chose it because during my Galaxy Tab 7 days, Non of the Chargers I found for it, charged the device, some kept it alive but non fully charged. The Verizon one is a 5v/2a and it is legit! I have successfully connected the Mod Powered OTG 4port hub to the KF2 with Mouse, Keyboard, a pen drive and my Galaxy SII and charged both the phone and tablet with no issues while using the keyboard, mouse and moving files around on the pen drive and internal memory.

However you don't need such power. I've used .5a and they worked to keep the tablet itself alive, 1a successfully charged the device and ran other devices. The 2A powers everything.
[Kindle Fire 2 Q&A, Help and Troubleshooting] jnow2:
Thanks for the info!
[Kindle Fire 2 Q&A, Help and Troubleshooting] mpr90:
Does this mean you have successfully charged the KF2 whilst running in host mode connected to other USB devices? It looked like from an earlier post, the KF2 would not charge. Did you have to strap the ID pin on the USB micro host connector with a resistor to get this to work?
[Kindle Fire 2 Q&A, Help and Troubleshooting] SilentlyScreaming:
I've been meaning to say, if anyone wants a mains powered USB OTG setup, the following product from DX (DealeXtreme, though I'm sure others stock it), might be of interest - see here for someone confirming the dongle has both a DC input, and comes with a mains adaptor, and here for the actual product details.

Now if it had a standard mini-USB socket for power, it would make things a lot easier, to use a USB battery (see my post above) without soldering, but it is quite cheap, and comes with a built in card reader/USB hub.

FWIW, no affiliate links involved, I've not tried it myself, just thought others might be inspired to experiment. I've still not come off the stock Amazon ROM, so haven't had a chance to fiddle with various devices just yet.

[edit]

Also, I've no idea whether the card reader function will work on a Kindle with the correct sort of JB ROM installed, but at that price, worth a gamble...
[Kindle Fire 2 Q&A, Help and Troubleshooting] naddel81:
Hi @ all,

I am using the original Amazon-ROM on my kindle fire HD and I'd like to know if the OTG (USB-host) function is dependant on the nightly custom rom.

thx in advance.
[Kindle Fire 2 Q&A, Help and Troubleshooting] flopower1996:
on cm10.2 i got a wirelles mouse and keyboard working but unforchantly no usb mass storage.
[Kindle Fire 2 Q&A, Help and Troubleshooting] naddel81:
no chance for usb OTG/host on the original rom, right? :(
[Kindle Fire 2 Q&A, Help and Troubleshooting] flopower1996:
I don't know, test it.

Gesendet von meinem Amazon Kindle Fire2 mit Tapatalk 2
[Kindle Fire 2 Q&A, Help and Troubleshooting] naddel81:
ok, got the OTG adapter here and my kindle fire. what to do now?
[Kindle Fire 2 Q&A, Help and Troubleshooting] smeitmeister:
I've tried a similar USB OTG device (http://dx.com/p/cy-gt-037-ri-angled...or-samsung-galaxy-s2-i9100-i9200-black-200091), with my Kindle Fire HD 8.0 on CM10.1 (Hashcode's build), and unfortunately non of my various usb devices (mouse, keyboard, memory stick) was recognized with USB Host Diagnostics.

It might have to do with the kernel in CM10.1 itself, but I'm not sure.

I hope others have more feedback on whether this is kernel or hardware related. Thanks.
[Kindle Fire 2 Q&A, Help and Troubleshooting] xWolf13:
As said by Hashcode himself. He has disabled USB OTG in the kernel.

Sent from my Carbonized Blaze
[Kindle Fire 2 Q&A, Help and Troubleshooting] smeitmeister:
As everybody is saying this is common knowledge, I again searched the main thread for Hashcode's "OTG not in kernel" statement.

Indeed, there is a pretty clear reference in http://xdaforums.com/showpost.php?p=41882430&postcount=398 (which says something about my crappy search skills).
[Kindle Fire 2 Q&A, Help and Troubleshooting] parker.stephens:
I've tried a mouse, keyboard, and USB Flash Drive. What doesn't work are game controller and external hard drives.
[General Questions and Answers] chromafunk:
Ok so I got the lenovo s880i googlefied. All is syncing and I have cleaned all the crap from lenovo on it. Now, I have some more questions : How can I find the system APK for system languages? I wang to add some european languages. It is android 4.0.4 ICS. I installed GO desktop too, wich is a way better launcher/desktop than the crap lebovo default. How can I make it the default system launcher ? Will it work if I just place the apk in to system/app and erase the original desktop? Or should I link it to the system somehow? Then finally I would like to replace the stock phone dial module for the original ICS one. Is that possible or it's a compiled part instead of an apk?

Many thanks!!
[General Questions and Answers] chromafunk:
Bump
[General Questions and Answers] shortyoko:
For the system apk's why don't you try with titanium backup, it has this as a feature, it works fine (tried only twice, with no issues whatsoever )
[General Questions and Answers] Togno85:
help
[General Questions and Answers] chromafunk:
Hey thanks to those responding ! I know already that you can do that with titanium. I prefer to do that manually though, as I alredy know the file system. Can somebody experienced with coding and more knowledge abou the system internals come five a hand here?
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] vinuparassini:
How can I got speed tweaks for galaxy note ? Now I have angry vt custom rom
[Galaxy Note GT-N7000 Q&A, Help & Troubleshooting] warfareonly:
Flash a performance oriented kernel?
[HTC EVO 3D] markslo112:
Hello. I've been charging my phone the whole night and it only got to 94%. After I restarted the phone, the battery was at 81%. Does anyone knows what's wrong? Thanks. :o
[HTC EVO 3D] donkeykong1:
A little more info would be nice. What rom are you using? Do you have root permissions? Are you s-off?
[HTC EVO 3D] irumora:
The first solution is:

On OVO 3D sometime if battery is charged to 100% he starts to use battery power instead of charger so if the light is green you need just to connect the charger again and it will start to charge again.

And the second:

After you installed some kind of ROM you need to calibrate the battery again. You can do by discharging your phone to 3-5% and then charge it to the full. You need to repeat this process few time and then you have calibrated battery.

Sorry but i forget to say that before recharging you need to delete old Battery stats
[HTC EVO 3D] donkeykong1:
The first thing is correct. When the phone is fully charged the charging stops and the phone uses power from the battery.

As for your second statement - you are partly right. Even though most developers say the same thing you said I found the battery calibration is the best way to get the most from your battery. I tried everything that developers suggested and it didn´t work so well. Battery calibration did the trick - now my battery life is great
[HTC EVO 3D] wolfu11:
Anker batteries seem to work the best
[HTC EVO 3D] markslo112:
Hey. Thanks for the replies. I'm using the 4EXT recovery and KingCobra3D - ICS 1.6 ROM. The thing is that my phone doesn't even charge up to 100%. Is it necessary to discharge the phone to 1-5% and then charge it to full and then calibrate via recovery or can I just calibrate the battery without having to discharge it first?

Also, I have root on my phone and S-ON.
[HTC EVO 3D] slyr114:
My anker battery has reported like 4000 charge since I got it and I tried using the calibrate app but it still reports the same after a few cycles? It should be reporting 1900.
[HTC EVO 3D] donkeykong1:
If you don´t use battery calibration you should go into recovery and wipe battery stats. Then boot up and fully charge the phone and let it discharge to 5-15%. Charge it to full and that should be it.

If you use battery calibration just charge to full, enter calibration app, hit calibrate and that is it
[HTC EVO 3D] markslo112:
Okay the phone charged up to 100% but it took ages. I've downloaded the Battery Calibration app from the Market and hopefully everything's gonna be well now.
[HTC EVO 3D] Xeri:
I have battery life issue too. I will try battery calibration.
[Galaxy Tab Q&A, Help & Troubleshooting] hegazy112:
please help me i cant boot to recovery mode and crash booting

my device info

gt- p1000

2.3.3

p1000jxjp4

kernal 2.6.35.7

se. infra@sep-52#2

ginger bread.jpjpd
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] qwe234432:
HD Video shooting problem on Wt19i cm9

My handset is Wt19i and my set has cm9.It can shoot hd video but problem is that it lags very mush can anyone of you help me.

Pls give me any fix or solution to edit something pls :(:(:(:(:(:(:(:(:(:(:(
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] qwe234432:
Hey any one help pls
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] qwe234432:
Problem

Any one here in this forum who bothers to help me by giving me a fix pls:confused::confused:
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] jesudas:
image stabiliser.......

Try to disable image stabiliser in settings...............
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] M.laghaei:
HD Video Shooting problem on Wt19i cm9

Disabling Image stabilizer will help to upper fluidity of the Video...

Another option might be using this camera mod in this thread (http://xdaforums.com/showthread.php?t=1935982). It will offer many other improvements too. but i don't know whether it works with cm9 or not.
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] jesudas:
Stock Only...

no its not ............. its actually works with stock roms or stock based custom roms only.............................:rolleyes:
[Samsung Galaxy Nexus] Jar3112:
Hi, is there a way to speed up the media scan process? When I add some songs or move photos from one folder to another it takes a long time before the gallery and Apollo apps find the new files.

I'm on cm10.

Or, alternatively, is there a way to trigger a media scan in a specific folder only?

Sent from my Galaxy Nexus
[Samsung Galaxy Nexus] Jar3112:
R: Speed up media scan

So Isn't there a way to trigger a faster media scan?

Sent from my Galaxy Nexus
[Samsung Galaxy Nexus] namtombout:
Try apps SD-booster or SD maid
[Samsung Galaxy Nexus] Jar3112:
R: Speed up media scan

These are not really what I'm looking for.. My intention was to force, for example, a media scan for a single folder, instead of the complete sd card...

Sent from my Galaxy Nexus