[Q] OTG transfer speed very slow - G2 Q&A, Help & Troubleshooting

Hi.
I bought a SATA to USB adapter in order to connect an internal HDD to my phone (I also have an OTG cable).
when using the adapter with my computer, I get around 40MB/s of transfer speed. It's very sufficient.
But using the same adapter with my phone, it takes 2 minutes to transfer a 150MB file to the phone, so the speed is a bit more than 1MB/s
Has anyone experienced the same problem?
I am using stock lollipop. I tried to mount the drive with both the internal mounting system and using the SlickMount app, with the same results.
The drive is a 160GB Samsung drive formatted to exFAT.

Related

[Q] Tab 10.1 with USB hub via USB adapter?

Hey,
Does anyone here have the USB adapter for their Samsung Tab 10.1? Can you connect a USB hub to it (maybe a powered USB hub)?
I take lots of full resolution photos, and would like to use the Tab to transfer data from SD card to portable USB hard drive.
What I want to avoid is having to first copy the SD card contents to the Tablet, then connect the tablet to the portable HD to unload the photos. That seems like unnecessary wear/tear on the flash memory.
If the USB host on the Tab 10.1 can handle a hub, then I can connect both the SD card and portable HD at the same time...hopefully the Tab would make use of it's RAM (the 1GB spec) to transfer chunks of data at a time, without resorting to using the internal Flash memory.
Am I right about that? The Android OS doesn't use the flash memory as a page file for working memory the way desktop computers do with drives?
bump - hoping someone can answer. Thanks.
There is a thread in development about a homemade usb adapter, and it works successfully with a hub. The samsung adapter isn't available yet, but should work the same
Sent from my SCH-I500 using XDA App
pokey9000 figured out how to force the unit in host mode. All you need to do is put 20ohms of resistance (easiest way with two 10Ohm resisters in series) between pins 13 and 15.
He also tested using a powered hub and was able to connect to multiple items at once. A regular hub might work for a few thing that are low powered but if you plan to have two hard drives, it better be powered.
has anyone found a usb to sd card adapter for multiple sd cards?
Did you ever figure this out? I want to do the same thing.

Transferring files directly to a non-GS3 phone + using GS3 to charge other phones

Hopefully this isn't a repost, but I was trying out USB OTG and realized that it could be used to transfer files from my GS3 to and from my other phones. I used a non-powered USB hub. It shows as 3 USB drives because one of my phones only has internal memory (no sd card installed). the other phone sees internal memory and SD card. As a bonus, the gs3 can be used to charge other phones.

USB OTG Output current

Can anybody test the Note 3 with a USB OTG cable and external hard drives?
If you are rooted and using the app "Stickmount" https://play.google.com/store/apps/details?id=eu.chainfire.stickmount, one should be able to mount a FAT32 partition to their phone.
If you don't want to format your hard drive to FAT32, then using the app "Paragon exFAT, NTFS & HFS+" https://play.google.com/store/apps/details?id=com.paragon.mounter would allow to mount another partition type.
It would be very interesting to find whether the Note 3 can provide enough power to external hard drives (portable hard drives with no included power supply) during the read and write processes.
Even though a USB 2.0 OTG cable is all that is available (to my knowledge), it would still be very useful to have the full 500mA available on the USB 2.0 portion of the Note 3 USB port.
Most smartphones have much less than 500mA on tap for the OTG connections.
I was able to connect a 500 mA (2.5" 5400 RPB SATA) from ADATA hard drive to the Note III!
Really unexpected. Connected the OTG connector first, then connected the drive to the female USB A port on the connector.
On my Note II it would try to spin up, squeal and spin down.
@Class said:
I was able to connect a 500 mA (2.5" 5400 RPB SATA) from ADATA hard drive to the Note III!
Really unexpected. Connected the OTG connector first, then connected the drive to the female USB A port on the connector.
On my Note II it would try to spin up, squeal and spin down.
Click to expand...
Click to collapse
Awesome, good to hear. Have you tried large file writes and reads to and from the drive in order to see if it is able to complete a write operation? If it can handle writing a bunch of data without corruption, then it very well may have full 500mA output capability.
thanks for the report!
I was able to delete a file from a FAT32 formatted drive. No need to install anything extra. Even though there is a 4GB file size limit, FAT32 is unfortunately the only format everything can read without additional software.
Even windows can't read Ext3/4 without additional software - and the software isn't just click and install good to go.
@Class said:
I was able to delete a file from a FAT32 formatted drive. No need to install anything extra. Even though there is a 4GB file size limit, FAT32 is unfortunately the only format everything can read without additional software.
Even windows can't read Ext3/4 without additional software - and the software isn't just click and install good to go.
Click to expand...
Click to collapse
Just wondering if anybody has any more info on the Note 3 output current? I hope it can power a Western Digital My Passport 2TB 3.0 as well as some DACs, such as the Musicstreamer II without providing insufficient power to those devices.
I went into a store and found that it will power a Western Digital 2tb my passport drive. It wouldn't read NTFS, so either root or exFAT may be required.
I confirm works well on my OTG usb 2.0 from S 2
Sent from my CruelB Note 3 SM-N9005 Snapdragon 800 using Tapatalk

[Q] Note 3 and My passport Ultra 2TB

Ok guys. I've been messing around for some long time using 4.3 rom and my 2tb passport but with no luck reading (or writing from it). I was under impression that phone has to be rooted for reading only NTFS format but....this is fairy tales if you ask me. Recently I upgraded to latest kitekat available and rooted but still no access to my drive. I tried 3 usb sticks (8,16,64) with no problem using FAT format.
I used paragon, stickmount but nothing helped me to work this out. I'm also having second doubt would I have more luck with exFAT format?
Anyone had similar problems connecting 2tb drive to their Note 3? And disk is spinning I'm positive it has enough usb power.
The phone can only support up to 1tb due to power restriction.
The only way that i managed to get a WD 2Tb drive to work with my phone/tablet was to use a powerbank. The phone doesn't give enough power out to start the drive up.
You need :
- 1 powerbank (the bigger the better, as it will also charge your phone/tablet)
- 1 USB Hub + OTG cable (or an USB Hub that can be used as OTG with the phone)
- 1 male-to-male cable
- the phone
- the external HDD
Connect to the USB hub the HDD using the cable suplied with it, connect using the male-to-male cable the powerbank to the USB hub and then connect the USB hub to the phone using the OTG cable (or if you have an OTG cable with USB hub integrated then it's even better).
Now, the powerbank will give power to all devices connected to the USB hub (the HDD and the phone), so it should work OK.
After that you will need to solve the NTFS reading/writing, for that you should be able to use the app you already mentioned.
P.S. when i was playing on the Tab2 with the above configuration, I also had to put an usb stick in the USB hub. For some reason the tablet didn't detect the HDD on the hub unless there was an USB stick too (never understood why). I don't remember having the same problem with the Note3, but i didn't test extensively so your mileage may vary.
Edit : an example of OTG adapter with integrated USB hub for Note 3 : http://www.ebay.com/itm/Micro-USB3-...-TF-Samsung-Galaxy-Note-3-N9000-/171300593212
Thanks for reply verszipo I was looking at this cable, hoping this could power up the drive while phone continues to operate itself without additional power. So Is it possible to have power supplied directly over wall plug instead of power bank?
This USB hub seams like nice idea.
Theoretically connecting like you suggested should work even if I leave disk in NTFS format using tools I mentioned before?
elektroda said:
Thanks for reply verszipo I was looking at this cable, hoping this could power up the drive while phone continues to operate itself without additional power. So Is it possible to have power supplied directly over wall plug instead of power bank?
This USB hub seams like nice idea.
Theoretically connecting like you suggested should work even if I leave disk in NTFS format using tools I mentioned before?
Click to expand...
Click to collapse
If external hdd is larger than 1 TB,
Use usb "Y" cable to add external power source to connection.
Hey!
I use 1.5TB HDD with mu N3 and it is NTFS...
Why cant you use USB hub with external power supply (try to find out if it is 1A or 2A? bigger = better), and at phone install total commander with plugin USB plugin for Total Commander (no root requided!!)...
I use a 2tb wd passport. No need for external power source. I use paragon to read and write to ntfs partition. My drive gets detected within a few seconds but takes several minutes to mount the drive. Maybe you just need to wait. I know my drive is mounted when the My Files app launches by itself and shows the drive contents.
I received my Y cable hoping extra juice could solve my problems but I have no luck at all. No matter what I use I can't make my drive read. I don't have any options to choose.
Maybe I should format my drive using different allocation size unit, I never formated it and it's not 4 months old. Maybe my phone has some crappy cache leftovers so I should use cleaner? Hell I don't know what to do anymore. Usb sticks are working fine all the way.
Ok update on topic. I mange to make it work. I formated to NTFS with default allocation size, nothing special. Using paragon + total commander plugin + total commander. Works fine now WITHOUT additional power. Only downside is that mobile battery drains way too fast when you connect storage on it. It does not matter if I plug in additional supply to drive or not, draining is the same. Anyone noticed this and any workaround for this.
Thank you guys for suggestions.
I mounted my CN memory usb3.0 3tb drive with paragon in my rooted sm n9005
It mounted fine to a folder in my int SD, and i copied ober 20gb of data

Fast USB C thumb drive for TWRP backup

This is my first phone without an sd card. Whereas I could previously make TWRP backups to the SD card, and it would survive when I format the data partition, but as that does not appear possible with this device, I need to back it up to an external USB thumb drive.
I am finding that this is significantly slower than backing up to the internal drive.
What is the fastest I can expect using a USB drive? Any recommendations?
I had 30 gigs and to do a full backup it was like 20 mins it was very slow vs a usb cable
jhedfors said:
This is my first phone without an sd card. Whereas I could previously make TWRP backups to the SD card, and it would survive when I format the data partition, but as that does not appear possible with this device, I need to back it up to an external USB thumb drive.
I am finding that this is significantly slower than backing up to the internal drive.
What is the fastest I can expect using a USB drive? Any recommendations?
Click to expand...
Click to collapse
The oneplus 6t's USB C port runs on USB 2 but has the type c connector So you will only get usb 2 speeds no matter the speed of the drive you connect it to.
bghyt said:
The oneplus 6t's USB C port runs on USB 2 but has the type c connector So you will only get usb 2 speeds no matter the speed of the drive you connect it to.
Click to expand...
Click to collapse
Ok. Thank you.
You could try to install ftp server on your mobile then connect to it, speed depeds on your router wifi speed, i got around 50MB/s transfer.

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