Database Users

OTG Host mode while charging

Hi,
OTG specifications tells it is possible by using a special resistor on id pin.
Does the N7 compatible ? with stock kernel ?
Sent from my Nexus S using xda app-developers app

I've tried a USB hub powered from the Asus charger. The hub "input" USB connector showed 5.17v (not tested with a load) - don't know if a USB hub should expose a voltage to the USB host and as hubs go this is as cheap as they get. Connected up to GNex (much prefer GooN!!) with OTG. There is no indication of charging taking place - Android System Info continues to report that the battery is discharging. Added two USB sticks and an SD card StickMount mounted them but no change re charging.

[Q] how to disable USB PC CONNECTION?

So here is what I'm trying to do... I want to disable the usb pc connection, because I have noticed that my phone charges very slow when connected to the computer, compared to when I have it charging to the wall outlet...
is there anyway to disable this feature so that I can just have my phone charging through the computer without enabling the pc connection?
I know on older previous versions of Android, when plugged to a computer you would get prompt with some options to choose (mass storage, kies, charge only, etc)
Is there anything similar available for the i337?
Sent from my SAMSUNG-SGH-I337 using xda premium

idrummer said:
So here is what I'm trying to do... I want to disable the usb pc connection, because I have noticed that my phone charges very slow when connected to the computer, compared to when I have it charging to the wall outlet...
Click to expand...
Click to collapse
The data connection to the PC isn't causing slow charging.
Your PC's USB port most likely only puts out 0.5A, while the wall charger puts out 2A. (my numbers may not be exact, but the theory is the same).

Exactly as stated above. USB 2.0 only allows 500ma of charging power vs 2.0amps (2000ma) for the charger that is supplied with the S4.
I wish phone makers would start getting with USB 3.0 Standard. If they had a 3.0 connector on the USB cables supplied, USB 3.0 can supply up to 1.5amps, and potentially up to 5amp.

As an aside: the SGS4 only allows for MTP and PTP connections...
There is a way to allow Mass Storage mode, but I wouldn't recommend it, so I won't provide any more details on that.

Fast charging?

Hello,
Using Phoenix ROM with stock kernel and fast-charging enabled, I am only getting 450mA of charge through my USB port, I was just wondering if this is normal or if it should be higher than that. If I plug my charger into the wall I can get a 1800mA charge, but I don't think fast charging enabled is doing anything while plugged into the PC USB port. I am using the stock S5 cable, any ideas?
Thanks

Cryceratops said:
Hello,
Using Phoenix ROM with stock kernel and fast-charging enabled, I am only getting 450mA of charge through my USB port, I was just wondering if this is normal or if it should be higher than that. If I plug my charger into the wall I can get a 1800mA charge, but I don't think fast charging enabled is doing anything while plugged into the PC USB port. I am using the stock S5 cable, any ideas?
Thanks
Click to expand...
Click to collapse
Depends on the USB port, mobo, bios, and some other stuff, are you plugging in to a USB 3.0 port? Some are starting to be adapted to be practical for charging but I've seen most USB ports in machines aren't typically designed for that.
Sent from my SAMSUNG-SM-G900A using Tapatalk

Rakuu said:
Depends on the USB port, mobo, bios, and some other stuff, are you plugging in to a USB 3.0 port? Some are starting to be adapted to be practical for charging but I've seen most USB ports in machines aren't typically designed for that.
Sent from my SAMSUNG-SM-G900A using Tapatalk
Click to expand...
Click to collapse
Hm, well I tried it on both my front USB 2.0 port and the back USB 3.0 port, I'm not sure it's registering at all, I heard fast charge was supposed to disable file transfer, but even with fast charge enabled, when I plug in the S5 it immediately pops up on my computer. Motherboard is an Asus M4A87TD if that makes a difference...

ZTE AXON 7 USB 3.0 Charging Speed (PC USB 2.0 vs USB 3.0)

Benchmarks for ZTE AXON 7 charging via USB 3.0 type C to USB type A with a PC for USB 2.0 & USB 3.0:
Benchmarking tools used:
Ampere, PC with ASUS Z97-AR & it's USB 2.0 500mA & USB 3.0 900mA ports.
Connection mode was set to - Charging Only.
Connection method: AXON 7> USB 3.0 type C -> PC> USB 3.0(900mA 1st pic)
www tefen ca/usb3.jpg
Connection method: AXON 7> USB 3.0 type C -> PC> USB 2.0(500mA 2nd pic)
www tefen ca/usb2.jpg
[Copy+Paste & add . to link]
Results:
A: AXON 7's USB 3.0 type C port & Quick Charge 3.0 is not limited to only 500mA or Quick Charge 3.0 supplied charger speeds.
B: It does make use of charging via USB 3.0 @ 900mA for a faster charging speed.
C: On average the charging speed can be around 2x faster than using USB 2.0 500mA.
Conclusion:
A: ZTE AXON 7 makes great use of the USB 3.0 port & Quick Charge 3.0.
B: Not only can it charge much faster using a Quick Charge 3.0 charger & cable, it can also charge much faster using a USB 3.0 900mA port(& proper cable) from devices such as a PC.

Will update photos to show.
I will update this post once I have made enough posts to have permissions to post outside links.
That way people can view the images in the post and not have to copy+paste links.

Thank you for sharing this. This has been my experience as well

I felt that at least someone should post this information on the internet. I spent hours google searching to try and find the info posted by other people with no results. I also made sure to post the same info on my Tefen's Tech Facebook page & on the ZTE community forums. This way people will be able to access the information more easily when searching for it on google & elsewhere.

I'm glad the Axon 7 has USB 3.0. I wonder why others still stick with 2.0.

USB Type-C connection to PC

Hi,
I tried to connect my S8 to my PC using the TypeC <-> TypeC cable came with my Nexus 5x to the onboard Type C connector on my motherboard (Intel Z370). On the phone the battery icon shows the charging sign for a second then disappears, on the computer there aren't any indication of a connected device and it doesn't show up in the file explorer. If I use the Samsung cable and a normal USB A port everything is fine. If I connect my Nexus 5x with it's own cable to the TypeC port it's working fine. I used the Nexus 5x's charger and cable to charge my S8 since I bought it and there wasn't any problems.
Is there something I'm missing or the S8 is not USB 3.1 compatible?
Thanks,
Zsolti