Develop Bugs

The future of charging through USB

Before to long we might be able to plug our devices into our computer and they will charge!
http://www.thinq.co.uk/2011/8/10/new-usb-specification-promises-100w-power/

Thanks for the relay, great find! With these newer devices it really makes sense and heck, why to I need seperate power bricks for my USB hub, speakers, and mouse charging base. Getting to a single USB cable would be ideal down the line. I had just ready recently how Apple has adopted the Thunderbolt cable for something similar (though not as powerful watt wise). It's a good trend. I can't wait to get a desk that doesn't have a rats nest zip-tied under it

My gt10 already charges off my laptop. Am I missing something?

slack04 said:
My gt10 already charges off my laptop. Am I missing something?
Click to expand...
Click to collapse
Yes, this new spec is 100 watts. Enough to power printers and just about any other USB device.

slack04 said:
My gt10 already charges off my laptop. Am I missing something?
Click to expand...
Click to collapse
..not at 2 amps like the wall charger (unless you have something special).

slack04 said:
My gt10 already charges off my laptop. Am I missing something?
Click to expand...
Click to collapse
Ever notice how it takes about twice the amount of time to charge?

Its actually about the same if you use one of the following charging/data cables linked below. I have both of them. I use one for my car and one at work. I was actually very impressed by the quality and function of these cables for what I paid. I plug in my tab at work to charge via laptop usb when the battery is below 15% and it charges it to 100% in about 6 hours. If you are looking for an extra cable, I highly recommend the first one.
http://goo.gl/VJDYK
http://goo.gl/c2Q5H

media_11 said:
Its actually about the same if you use one of the following charging/data cables linked below. I have both of them. I use one for my car and one at work. I was actually very impressed by the quality and function of these cables for what I paid. I plug in my tab at work to charge via laptop usb when the battery is below 15% and it charges it to 100% in about 6 hours. If you are looking for an extra cable, I highly recommend the first one.
http://goo.gl/VJDYK
http://goo.gl/c2Q5H
Click to expand...
Click to collapse
I just ordered two of the first link. I hope it works as you claim it does. Thanks for the tip!
Sent from my badass Galaxy Tab 10.1.

That sounds cool, but will computer have that much power to offer?
Or could it overload it's power source?

emanuel12 said:
That sounds cool, but will computer have that much power to offer?
Or could it overload it's power source?
Click to expand...
Click to collapse
With everything going greener I'd expect all but some high end systems have plenty to spare from the 300-500 watt PS. Heck, smart PS with the right USB implementations could allow charging with the PC off for these gadgets and even cutting the power to charge off when it senses the devices are charged. It's all spes and who follows them though. Pretty cool even if it works for just a few features.

emanuel12 said:
That sounds cool, but will computer have that much power to offer?
Or could it overload it's power source?
Click to expand...
Click to collapse
I doubt you would be able to use this in Laptops. My laptops power supply is 90W, they would have to double the size of the power brick and that would be annoying. But, for desktops, this could be nice with like a 600W PSU.

tghockey07 said:
I doubt you would be able to use this in Laptops. My laptops power supply is 90W, they would have to double the size of the power brick and that would be annoying. But, for desktops, this could be nice with like a 600W PSU.
Click to expand...
Click to collapse
Maybe in the future you will be able to charge your laptop through your desktops USB port and get rid of the brick

ericlmccormick said:
Maybe in the future you will be able to charge your laptop through your desktops USB port and get rid of the brick
Click to expand...
Click to collapse
Would it help to plug your laptop into your laptop USB port...infinite loop....

I have a USB 3.0 host card in my desktop machine. It has a connector for a hard drive power cable in order to have enough charge power.
Sent from my GT-P7510 using Tapatalk

USB Fast Charge mod

Hello I was wondering if there is a mod to have usb fast charge when plugged into the comp. I just came from a Inc and there was a mod flashable through cwm. it was very nice. it charged the phone just as fast as an outlet, if not faster. is there a mod?
thanks

Interesting... I'd be interested in this as well.
Sent from my Galaxy Nexus using Tapatalk

+1 this would be great!

Agreed, awesomeness would ensue.
Sent from my Galaxy Nexus using Tapatalk

the developer behind it for the htc Inc was chad0989
. he made the incredikernels and the incredicontrol app. tried to use incredicontrol app just for fast charging but didnt work since the kernel doesnt support HAVS or SVS. Im on Francos btw

Imoseyon said once any speed charges were done by taking code out that slows it. Nexus doesn't have it in kernel now according to him so not likely.
Sent from my Galaxy Nexus using xda premium

cricketsmoke said:
Imoseyon said once any speed charges were done by taking code out that slows it. Nexus doesn't have it in kernel now according to him so not likely.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Would there be a way to selectively trigger AC mode as opposed to USB mode?

just asked this in the IRC chan and few devs said doing this could mess up your computer system. point of the hack would be to trick the cheap car chargers into giving u the full charge, not the computer.

droidkevlar said:
just asked this in the IRC chan and few devs said doing this could mess up your computer system. point of the hack would be to trick the cheap car chargers into giving u the full charge, not the computer.
Click to expand...
Click to collapse
hmm well i know chad did it and no one that has ever used it had a problem. my computer is fine and so was my phone. il send him a pm and see if he responds

sent him a pm

is it possible to take apart his incredicontrol apk and see how it works that way? its in the market

droidkevlar said:
just asked this in the IRC chan and few devs said doing this could mess up your computer system. point of the hack would be to trick the cheap car chargers into giving u the full charge, not the computer.
Click to expand...
Click to collapse
Not many motherboards have USB ports capable of supplying current in excess of the spec 500mA.
Research modding your (car?) Charger to be detected as AC charger instead of USB.
Sent from my Nexus Prime.

What about a mod that allows the 3 pogo pins to receive more than 500mA(recognized as USB)? That seems ridiculously low and is far more relevant/needed. If you want to charge through the pogo pins you are just SOL.

Moved to General.

morfic said:
Not many motherboards have USB ports capable of supplying current in excess of the spec 500mA.
Research modding your (car?) Charger to be detected as AC charger instead of USB.
Sent from my Nexus Prime.
Click to expand...
Click to collapse
I haven't seen a device that can't do 1A over USB in like a decade.
Hell, even non-PCs have no problems with it. I've done it off a Wii before just for fun.
A lot of newer motherboards can even do 2A over USB (to charge iPads). Most ASUS boards in the past 2-3 years have this as an advertised feature (asus ai charger).

Very interested in this actually. Not so much for USB/AC charging on a computer, but for MHL AC charging.
With the current MHL adapters (even when plugged into an AC outlet), the Gnex reports USB charging. To make maters worse, the screen does not shut off on the Gnex. After an hour or two your battery will die. 500ma is just not enough.
The MHL spec says that 500ma is the charging spec. However, I tweeted with Tim Wong:
http://twitter.com/WongTim
He is the president of the MHL association and he said 500MA is the minimum, not the maximum. My quess is that the Gnex won't try to draw more than 500MA since the data pins can't be shorted on the MHL connector.
I think the MHL adapter will provide for more current, just like most laptops and desktops.
With this mod, it would be nice to tell the Gnex to AC charge. Tim suggest that the phone should not draw more than safely required so long as the voltage doesn't drop on the MHL adapter/MHL tv.
I think the Gnex, by design looks for the shorted data pins and doesn't try to push the envelope as far as monitoring the voltage drop on a USB detected power source.

I recall reading about some smoking/dead phones from fast charging mods. Thanks but no thanks.

sruel3216 said:
Hello I was wondering if there is a mod to have usb fast charge when plugged into the comp. I just came from a Inc and there was a mod flashable through cwm. it was very nice. it charged the phone just as fast as an outlet, if not faster. is there a mod?
thanks
Click to expand...
Click to collapse
I came at this problem from a different angle and accidentally found a solution for you. I have an iPad and it wouldnt charge from my PC so did some research and came up with this:
http://event.asus.com/mb/2010/ai_charger/
Its a free driver from asus that increases the max amp on USB bus. Supports most mobos and works awesome on my PC and dell laptop, I can now charge the iPad on there.
It also has the benefit of fast charging of my Nexus. Double win.
EDIT: Ignore the ****ty site design, it looks terrible but does as it says

TheBishopOfSoho said:
I came at this problem from a different angle and accidentally found a solution for you. I have an iPad and it wouldnt charge from my PC so did some research and came up with this:
http://event.asus.com/mb/2010/ai_charger/
Its a free driver from asus that increases the max amp on USB bus. Supports most mobos and works awesome on my PC and dell laptop, I can now charge the iPad on there.
It also has the benefit of fast charging of my Nexus. Double win.
EDIT: Ignore the ****ty site design, it looks terrible but does as it says
Click to expand...
Click to collapse
Just installed and will give it a go. Wish me luck people.
Edit: Didn't work for me. Same charging speed with and without it.

Here is a pm back from chad:
I'll look into it and see if I can come up with something for the gnex also. I do not plan to release a kernel, but possibly I could provide a patch.
Can you get me a kmsg (/proc/kmsg) while you plug your phone into an AC source, and then a USB source?
adb shell "cat /proc/kmsg"
Also a log of the power draw while connected to USB and to AC
Thanks

my phone not charging with original power adapter.

Good day to all.
I have this problem with my note 2.
The problem is that it wont charge using the original cable and power adaptor that comes with it.
But if i combine the cable with adaptor used in iphone it works.
Im sure the power adaptor is fine because if i use it with other device it works.
There is also problem connecting to a computer.
While connected to a computer it will not also charge and not able to read by the computer. No response or anything.
I hope someone can give answer to my problem.

d3nz13 said:
Good day to all.
I have this problem with my note 2.
The problem is that it wont charge using the original cable and power adaptor that comes with it.
But if i combine the cable with adaptor used in iphone it works.
Im sure the power adaptor is fine because if i use it with other device it works.
There is also problem connecting to a computer.
While connected to a computer it will not also charge and not able to read by the computer. No response or anything.
I hope someone can give answer to my problem.
Click to expand...
Click to collapse
sorry just to clarify, you tried both the original note 2 cable and adapter with another device and it charged?

Just another case of faulty cable. Change it.
Swyped from my GT-N7100

kylec said:
sorry just to clarify, you tried both the original note 2 cable and adapter with another device and it charged?
Click to expand...
Click to collapse
Yup. It worked with other unit..

Just because it works with another device, doesn't mean it's ok. If it's only putting out say 1amp, that would be enough to charge my SG2 for instance, but not the Note 2. Plug it in and monitor how much juice is coming in, I use battery monitor widget pro, but I'm certain that there are other options.
Sent from my Xoom using XDA Premium HD app

HDMI not working anymore

My phone is rooted & I am on the original firmware that came with the phone.
I originally was using a cheap mhl/hdmi cable that I got off ebay. It worked great until the other day. I assumed that it was just a cheap/broken cable so I picked up the Samsung Smart Dock. Unfortunately, that doesn't work either so I'm assuming something is wrong with my phone.
I took the battery out & did a restore/reset to factory conditions. Still no luck.
Any ideas on how to get this working or do you think the problem is the phone's hardware?
Thanks!

Is the USB port working at all on your phone? It's possible some of your pins went bad in the port.
In my experience, sometimes the port can be nick picky about with the MHL. But I was using a generic HML adapter and a 5-11pin usb adapter. If you know someone else with a GN2, you may want to check your stuff with their phone just to make sure it's the cable or dock and not the phone. You can also use a GS3 too.

Not familiar with the Smart Dock. Is it 11 pin and not the older version 5 pin, I would think to confirm this?
I purchased the Samsung Dongle for hdmi and it worked great, just remember to also plug in power as well.
Sent from my SPH-L900 using xda app-developers app

Thanks for the responses, but still no luck!
@lovekeiiy - Unfortunately, I don't know anyone with a Note 2 or S3, but since two cables don't work (including one that used to work), like you, I'm guessing that it is the port. I guess that I'll have to take it back to Sprint.
@q711179 - Yeah, the Smart Dock is made specifically for the Note 2. The phone charges and connects to the computer perfectly so something having to do with the MHL connect is probably on the fritz. And, yes, it was plugged in.
Anyone have any other ideas before I head to Sprint?
Thanks again!

maybe one of the Sprint employees will have a GN2 or GS3 you can test your cables or dock with.
I'm not saying it's not the port. I would just hate to go through the hassle of exchanging the phone and it's still happens to be the cables or dock. It's possible you could have gotten a bad second cable and dock; that's some bad luck if true.
Thus, that why I ask if you're able to connect the phone to a PC or charger. I assume an HML cable connected to either should trigger the USB memory storage and charging on the PC and charging with the wallwort or car cigarette usb adapter.
In my experience, I find with pin adapter and HML converter box, it tends to be nick picky at times.
On a side note, I don't like how using these adapters don't really charger the phone. It's just a slower drain. I would rather have to use regular AC adapter. I guess once could try to use a more power USB wallwort with HML adapter. But I digress.....

@lovekeiiy - Great idea to have someone at the Sprint store check out the cable. I really hope that it is the cable and not the phone. Thanks for your trying to troubleshoot this with me. And, yes, I really wish that MHL cable didn't drain the phone!

I had a lot of glitchy issues when using standard a/c charging units the one that output .5 or .7 amps even the 1 amps with the mhl adapter. I use my Nexus 7 charger which puts out 2 amps and all the glitchy issues i had went away now the output to the tv is solid.

Unknown Zone said:
I had a lot of glitchy issues when using standard a/c charging units the one that output .5 or .7 amps even the 1 amps with the mhl adapter. I use my Nexus 7 charger which puts out 2 amps and all the glitchy issues i had went away now the output to the tv is solid.
Click to expand...
Click to collapse
Thanks for the idea. I tried a bunch of chargers, ranging from .8 amps to 2 amps, and no luck. The frustrating thing is that the Note 2, says that the HDMI cable is connected, but there is no output. I've tried several different monitors to.
Since the Sprint Store is a small hike for me to get to, I won't be going until this weekend so if anyone has any other ideas, please let me know.

the phone says it's connected? It's possible there's a HDCP issue. Have you tried a different TV? Don't test with Hulu or Sprint TV, they both disable HMDI out. You should be able to see something if on your homescreens.
Unfortunately, there are only so many TVs that have HML, mainly Samsung. Other TVs, you need that HML adapter. You may want to try the phone at a friend's TV or local electronics store. You may need to bring a external USB battery to power the HML adapter if you have an HML adapter or your phone's charger.

lovekeiiy said:
the phone says it's connected? It's possible there's a HDCP issue. Have you tried a different TV? Don't test with Hulu or Sprint TV, they both disable HMDI out. You should be able to see something if on your homescreens.
Unfortunately, there are only so many TVs that have HML, mainly Samsung. Other TVs, you need that HML adapter. You may want to try the phone at a friend's TV or local electronics store. You may need to bring a external USB battery to power the HML adapter if you have an HML adapter or your phone's charger.
Click to expand...
Click to collapse
I've tried it on a computer monitor (where it worked previously w/ my Note 2 and it just stopped working for some reason when I was using a cheap MHL/HDMI connector that I got off amazon). I also tried it on another computer monitor and on a Motorola Lapdock. On all monitors, the phone shows that the HDMI cable is connected when using either the Smart Dock or the cheap connector, but there is no picture when I am on the homescreen (or when on any other screen).
I know that my HDMI cable that I connect to the Smart Dock works since I tested it w/ all of the above monitors with a Raspberry Pi.
I can power the phone & connector with the Lapdock so I'll give that a shot at an electronics store.
Do you think that it could be a software issue? Should I try a new ROM that supports the MHL/HDMI out?
Thanks again for all of your help. I really appreciate it

I would try a different rom if you can. I thought you were running a stock rom. I've been using stock the whole time. I'm rooted. I'm currently running a stock deoxedized. I haven't used the HML in a while, but I will try it later to make sure it's working.
If you're able to charge the phone while using a HML cord or adapter, then it's either the firmware or the USB port is borked, but not completely.
Going to electronics store was suggested because those TV should all have the HDCP that the phone could be looking for. I don't know how your old TV or monitors are, so it's possible they may lack it. Sometimes, it's just the handshake, and just turning off the phone (just hit the power botton on the phone, don't actually shut it off) or TV, and then turn them back on can resolve the resolve the handshake. I've heard of this for home theater PCs or other devices in that area.

lovekeiiy said:
I would try a different rom if you can. I thought you were running a stock rom. I've been using stock the whole time. I'm rooted. I'm currently running a stock deoxedized. I haven't used the HML in a while, but I will try it later to make sure it's working.
If you're able to charge the phone while using a HML cord or adapter, then it's either the firmware or the USB port is borked, but not completely.
Going to electronics store was suggested because those TV should all have the HDCP that the phone could be looking for. I don't know how your old TV or monitors are, so it's possible they may lack it. Sometimes, it's just the handshake, and just turning off the phone (just hit the power botton on the phone, don't actually shut it off) or TV, and then turn them back on can resolve the resolve the handshake. I've heard of this for home theater PCs or other devices in that area.
Click to expand...
Click to collapse
I'm on the stock rom, but was wondering if switching it might help if it is a software issue, but since I already did a factory reset, I sort of doubt it.
I'll try the electronics store next week. I have to work this weekend, and I don't go near an electronic store during my commute. I really hope it works.
Thanks again for all your suggestions. I really appreciate it. I'll report back next week.

I hooked up my GN2 to the HDTV, and was working fine.
Not the best video, but you can see phone with the 5 to 11 pin adapter, generic monoprice HML adapter. The comparison thing about it, keeps me from getting propped with copyright infringements.
I had the same thought your factory reset. I also was thinking maybe you downloaded it to reflash it and maybe your download was corrupted. Obviously, I have no idea if you flashed a different rom after rooting. If you didn't, then flashing a different is not likely going to help. But at this point, I'm not sure what you have to lose; it should be noted, I don't know how many flashes you get before the Sprint or Samsung get pissy. You may want to run flash away if you have to replace your phone. I never used it myself.

lovekeiiy said:
I hooked up my GN2 to the HDTV, and was working fine.
Not the best video, but you can see phone with the 5 to 11 pin adapter, generic monoprice HML adapter. The comparison thing about it, keeps me from getting propped with copyright infringements.
I had the same thought your factory reset. I also was thinking maybe you downloaded it to reflash it and maybe your download was corrupted. Obviously, I have no idea if you flashed a different rom after rooting. If you didn't, then flashing a different is not likely going to help. But at this point, I'm not sure what you have to lose; it should be noted, I don't know how many flashes you get before the Sprint or Samsung get pissy. You may want to run flash away if you have to replace your phone. I never used it myself.
Click to expand...
Click to collapse
Thanks so much for the video. I wish that my phone could do that. I just got back from BestBuy and tried the phone on a number of TVs using a 5 volt 2 amp power source, and no luck. So, I'm sure it is the phone.
I only rooted, and did not flash a new ROM so I'm going to use Triangle Away and bring it back to Sprint.
Thanks again for all your help!

My hmdi out is not working either it used to work and would play games off my phone on the big screen but now nothing, just the "HDMI cable connected" prompt on my phone. Tried rebooting, ,etc etc...
I am running custom rom/kernel so I fear that might have something to do with it...I will try triangle away before i try more drastic solutions I suppose...
Sent from my SPH-L900 using xda app-developers app

netzer119 said:
...I am running custom rom/kernel so I fear that might have something to do with it...I will try triangle away before i try more drastic solutions I suppose...
Click to expand...
Click to collapse
You may want to try a stock rom and kernel. I don't suspect the kernel, but it's possible the ROM doesn't have all the drivers or something to have a working HDMI.
---------- Post added at 05:15 AM ---------- Previous post was at 05:14 AM ----------
and Triagle Away isn't going the HDMI situation. It's a tool to reset the flash counter so one can avoid a warranty from being voided for flashing too many times.

I didn't think triangle away would help (and it didn't) but thought I'd give it a shot anyway...
I'm happy to say I got it working by disabling the exynos exploit patcher and rebooting...it's back to working perfectly now. I actually uninstalled that app bc my kernel includes its own exploit patch
Sent from my SPH-L900 using xda app-developers app

netzer119 said:
I didn't think triangle away would help (and it didn't) but thought I'd give it a shot anyway...
I'm happy to say I got it working by disabling the exynos exploit patcher and rebooting...it's back to working perfectly now. I actually uninstalled that app bc my kernel includes its own exploit patch
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
You solved it! It was the exynos exploit patcher! I enabled it and didn't use HDMI for a few weeks so the thought never crossed my mind. I just disabled it and HDMI out is working again. Thank you!!!
What kernal & ROM are you using?

Yay! Lol glad I could help I was ripping my hair out trying to watch a movie last night.
Im using macks rom 4.0 with latest Perseus kernel 32.1 Andreilux mentions in the changelog for version 31 that it now includes samsungs official fix:
forum.xda-developers.com/showthread.php?t=1927852
"Removed my own security fixes and replaced them with the official Samsung one. I guess it can now be disclosed: exynos-mem was only one of multiple entry-points for the memory exploit. We discovered the s5p-smem exploit ourselves back in December but kept it quiet, I fixed that one back in version 29.2 without mentioning. Nobody was secure from a smart exploiter up until then, SuperCurios or Chainfire's software fixes are also just patching a single hole in what is a Swiss cheese. Kernels >v31 and beyond stock LLA are now the only truly protected ones"
Sent from my SPH-L900 using xda app-developers app

Thanks for the response. I'll read up on the kernel & ROM and probably load those up tonight.

will this accessory work with the One?

Would this work with the HTC One? http://www.amazon.com/Micro-Cable-P...=UTF8&qid=1385609474&sr=8-13&keywords=usb+otg

If you get it let us know. It may need something enabled in the kernal to accept power while in OTG mode but I'm not sure

Comet1966 said:
Would this work with the HTC One? http://www.amazon.com/Micro-Cable-P...=UTF8&qid=1385609474&sr=8-13&keywords=usb+otg
Click to expand...
Click to collapse
RLKirk said:
If you get it let us know. It may need something enabled in the kernal to accept power while in OTG mode but I'm not sure
Click to expand...
Click to collapse
I just purchased this same device and can yes it works just like any other USB OTG cable but it will not charge your phone or at least I couldn't get it to charge.

klbjr said:
I just purchased this same device and can yes it works just like any other USB OTG cable but it will not charge your phone or at least I couldn't get it to charge.
Click to expand...
Click to collapse
Makes sense. Thanks fir the enlightenment. Maybe since kernels are starting to come out one of the devs can figure out of a way around it

RLKirk said:
Makes sense. Thanks fir the enlightenment. Maybe since kernels are starting to come out one of the devs can figure out of a way around it
Click to expand...
Click to collapse
I've read comments from people with other phones that say it does charge their phones but I couldn't get it to do anything with my ONE. Now I did read somewhere that while it is plugged in the USB device is powered by the adapter and not the ONE so you can save some battery life but I haven't done any tests to verify or deny that theory.

Did you use the pc to charge or ac adapter?
Sent from my HTC6500LVW using Tapatalk

i think it's used to power the usb device. and it's very useful for device which doesn't support otg natively like nexus4

OK I can confirm that it does charge the device, just not mine, it charges the RAZR M, it will charge the one in recovery and when its off. But the storage doesn't show in recovery. When I have it plugged in while its on the OTG works and when I unplug it from the phone, it says its charging via USB. I'm no dev so I have no idea how I would get this to work.

Charging will work in recovery but not in boot as the phone will be picked as an otg device