I know a few other phones have managed to enable OTG host mode and charging simultaneously via a resistor on pin 4 (ID/sense) of the usb port. This apparently enables dock mode. I know the SIII does it as well as some xperias. Anyone know if the note has a mode like this, and what the resistor value is? Galaxy nexus its possible to patch the kernal to disable the boost mode from internal battery on OTG host mode. Anyone done anything for the note?
Geekybiker said:
I know a few other phones have managed to enable OTG host mode and charging simultaneously via a resistor on pin 4 (ID/sense) of the usb port. This apparently enables dock mode. I know the SIII does it as well as some xperias. Anyone know if the note has a mode like this, and what the resistor value is? Galaxy nexus its possible to patch the kernal to disable the boost mode from internal battery on OTG host mode. Anyone done anything for the note?
Click to expand...
Click to collapse
In my limited knowledge, I have just tried one of these with no success. No mods to the cable or the kernel or anything. Just wishfully hoping it might work. It does not. I am not even sure it is getting power to the USB device properly. I am trying to run a small Seagate FreeAgent disk drive. As expected, it runs fine when plugged into a USB port on my desktop or laptop. Plugged into the OTG using the standard OTG-type cable or this Y cable - without additional power - yields nothing as I would expect. Applying supplemental power to the Y cable from either a PC USB port or from the phone's charger gets the drive making a little noise and lighting up. But the phone still does not recognize the device. And I hear this slight pulsing noise from the disk itself that is not heard when plugged into the PC. Alas! Perhaps it needs yet more power. But all I have is either what comes from the USB port on the computer or the 1A max from my phone's charger.
Added later...
I have actually discovered that the Y cable works as a normal (not power supplemented) OTG cable for thumb drives, etc. But adding supplemental power to the thing makes everything stop working. The thumb drive which was working prior to adding the power cable stops working. With my Seagate drive (which requires additional power) plugging the Y cable into my phone makes the drive shut down after a few seconds.
It appears that either the USB port or the USB controller is failing (has failed). The phone still charges but neither the phone nor any computer recognizes that the phone is plugged in. Even when I plug the phone into a wall jack, the phone does not make any sound or light up or show it is charging (it does charge though). If I go to the battery settings while the phone is plugged in (computer or wall) the phone recognizes that it is charging.
If the phone is off and I plug in the usb cable (compter or wall) the phone turns on by itself. This is problematic because I cannot get into the download mode using the 3 button combo. I also cannot get into the download mode using apps like Reboot Widget.
I installed USB Host Controller which says that the USB cable is not plugged in when it is. I can disable and enable USB charging though. Changing the USB Host Drivers has no effect.
So it looks like I need to send it into mobiletechvideos for repair. But reading through the reviews there is concern that just replacing the USB port wont fix my problems if the USB Controller is shot.
Not only did they replace the USB port and get it back to me in about a week but they told me that since the controller had failed and the phone couldn't talk to the computer I wasn't charged the full price for the repair.
Click to expand...
Click to collapse
So I guess I'm asking if anyone here knows anything about this issue and if mobiletechvideos.com can repair it.
I am also going to email mobiletechvideos.com asking them this same question.
Thanks for your time.
jetak said:
It appears that either the USB port or the USB controller is failing (has failed). The phone still charges but neither the phone nor any computer recognizes that the phone is plugged in. Even when I plug the phone into a wall jack, the phone does not make any sound or light up or show it is charging (it does charge though). If I go to the battery settings while the phone is plugged in (computer or wall) the phone recognizes that it is charging.
If the phone is off and I plug in the usb cable (compter or wall) the phone turns on by itself. This is problematic because I cannot get into the download mode using the 3 button combo. I also cannot get into the download mode using apps like Reboot Widget.
I installed USB Host Controller which says that the USB cable is not plugged in when it is. I can disable and enable USB charging though. Changing the USB Host Drivers has no effect.
So it looks like I need to send it into mobiletechvideos for repair. But reading through the reviews there is concern that just replacing the USB port wont fix my problems if the USB Controller is shot.
So I guess I'm asking if anyone here knows anything about this issue and if mobiletechvideos.com can repair it.
I am also going to email mobiletechvideos.com asking them this same question.
Thanks for your time.
Click to expand...
Click to collapse
Mobiletechvideos (Connexion2005 on xda) can most likely repair your phone. Him and Adam Outler have been doing the impossible with devices!
Hello today i tried charging my phone using a 5 V 2Amp rail on a pcb from a monitor!.
I connected the usb and shorted the ground and Data + pins on the usb connector to start the charging.The phone was charging but the battery dropped form 70 to 69 % after this i disconected the phone and rebooted it the battery was 93%.
Then i pluged the phone to a 1.2 A charger that i was originally using (Not the charger that came with it! this was a Nokia charger) and the phone would not charge.
After a reboot i saw a meesage that one app got uninstalled.
I downloaded and flashed Carbon Rom 4.4 the one i use for about 2 months now.And tried again (i thought that would replace the uninstalled app the probably messed up the charging.).
Nothing
Then i hooked it up on the pc and it will not recognize the phone normally in fastboot or flashmode.
The plus is the phone works fine and when plug in the charger when its powered down it boots.
Thus i dont think i blew the charge controller on the device.
But it wont go into recovery after the flashing of the rom
I run Carbon Rom KK (4.4.2) Nyan kernel UBL And i haveo nly about 60% of battery left to save it.
Thank you.
News (good or bad i dont know you tell)
It seems to understand a usb stick when connected by otg but only when the usb stick is connected halfway in the otg cable.... something wrong with the connector maybe.
My uncle bought a new phone so he gave me his old Xperia Z, which I intended to use as a secondary device
Here's the issue:
-The Z charges only when it is powered off, and that too very slow. Charging it overnight brings it from 0 to 65%
-I can't get my desktop to even detect the phone when it's connected either switched off or switched on. I see nothing in devices and printers
-I ripped apart an old charging cable and tried to charge it through the pogo pin slot (image attatched) it charges alright but that's the only way I can charge the device. Since I intend to install a custom ROM on it, I need to unlock the bootloader, and that's impossible without connecting to a computer
-Also when I connect a usb drive through USB OTG it just glows its led and does not blink it
I'd like to know what the issue might be and what are possible solutions
I think the problem is in hardware and the connections of one of the data pins of the USB port is broken.
Hello guys
I recently changed from S9+ to S21 and I have a question : I usually use my desktop computer to charge my phone during night while I sleep. (with data USB cable)
I have no problem when the desktop is on (under windows) : my phone charge (with USB cable) and I can transfert photos.
When my computer is off, when I plug the phone, the screen show the charging screen for 2 seconds and stops
I have no problem with my S9 to charge when the computer is off. (I know that there is an option in the bios to keep USB charging when computer is switched off)
It looks like the USB power is too low, and the S21 doesn't want to charge with it.
Maybe ther is an option in the phone to authorize this kind of charging ?
yan74s said:
Hello guys
I recently changed from S9+ to S21 and I have a question : I usually use my desktop computer to charge my phone during night while I sleep. (with data USB cable)
I have no problem when the desktop is on (under windows) : my phone charge (with USB cable) and I can transfert photos.
When my computer is off, when I plug the phone, the screen show the charging screen for 2 seconds and stops
I have no problem with my S9 to charge when the computer is off. (I know that there is an option in the bios to keep USB charging when computer is switched off)
It looks like the USB power is too low, and the S21 doesn't want to charge with it.
Maybe ther is an option in the phone to authorize this kind of charging ?
Click to expand...
Click to collapse
There isn't such an option in the OS as of now. It's possible that the S21 battery amp requirements are more than those of S9
Do you think the computer's USB port has a lower supply when the computer is turned off ?
We don't know what kind of computer you have, or what it's USB port capabilities are. That's something you can try to figure out, looking at your computer or manual for the computer's motherboard. Also check the BIOS settings, sometimes you can control the power state of the computer when it is "off" and whether power is still supplied to the USB ports (e.g., to allow the computer to boot up when it detects mouse or keyboard USB inputs).
As an example, my MSI motherboard has a feature where you can install software to set the USB ports to a high power output state, so you can power USB devices using more than the standard output current.
My Dell laptop has a USB port with a special symbol that means it's for high-power output for charging phones etc. So it can handle charging modern phones, and puts out more than 0.5 amps, but only for those USB ports with the special symbol (lightning bolt).
You'll need to just find out more information about what your computer is capable of.
I have a MSI gaming pro carbon X370 ( the optional wake by USB is on, without that, you're right, the USB are totally off and nothing will charge)
I did more investigations .... I tried all my USB cables and all USB ports and finally find 1 combination that works.
Only 1 of 12 USB cables worked ( the one took from an external HDD ) even the original cable supplied with the phone didn't work and nor a 100W Ugreen cable...
And only the front USB work. The different USB directly on the motherboard doesn't work with this phone, despite I always used them to charge many devices...
for information the working cable is a KAIBAO revision 3.0
Finally it doesn't work with this cable : it take longer before the phone stops to charge, but it stops too ...
Hi,
You need to check the power requirements of your new phone.
Thank you.