[Q] Max. number of ext. USB-memory drives supported - Android Q&A, Help & Troubleshooting

What is the number of external drives that Android 4.3 can mount?
I connected 7 memory sticks and HDD via a 10 port externally powered USB-Hubs 3.0 to my Galaxy Note 3 (Android 4.3). In addition to the internal µSDXC reader a max. of 3 drives were displayed A, B and F even though I had 7 sticks connected all on the first and last ports leaving the middle ones open. Using a different Hub it displayed only A,B,C.
While this question may sound strange for a small tablet like the Note, several sticks with 128 GB capacity are much cheaper then a 256 or 512 GB one and HDD require to much battery.
I could not find any documentation as to the number of drives an Andrid devices would mount, if there is a limit in size for HDD and which Formats are supported (FAT 32 works, NTFS not) without requiring external driver APP's. Has anyone an idea?
The Notes 2 and 3 allow acces to external USB-drives, is this a special form of root rights or only because they were designed that way to allow acces also using the Ntfs Mounter - Automatically mount NTFS/EXT formated USB Sticks and SD Cards http://forum.xda-developers.com/showthread.php?t=1654024

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[Q] Files over 1GB with OTG cable (Urgent!)

Hi all,
I'm about to travel to Ireland next week, with my SGS2 and a camcorder - but no notebook.
My challenge was to be able to download everything from my camcorder onto a portable HDD, using only the Samsung (this would free my camcorder's SDHC card for the following day).
Successes so far:
SGS2 "sees" camcorder through OTG cable, and downloads (small) files
SGS2 "sees" HDD through OTG cable, and uploads/downloads (small) files (HDD is a 1TB My Passport, reformatted to FAT32 and connected through a powered USB2 hub)
Can even transfer (small) files directly from cam to HDD, when SGS2, HDD and Cam are all conected to the hub (SGS2 using OTG cable)
Steps 1-3 were easy, but I still have a problem in files getting cut at 1GB (the remainder of the file doesn't transfer - presumably a RAM size issue). And camcorder files are usually large (around 3GB)...
Any way I can transfer larger files?
All answers are welcome - I need to fly in a few days...
Thanks,
Kim
are you sure is fat 32? as far as i know the limitation is at 4gb for fat 32 so in theory it should allow you!
Also, for a better solution you should look into how to mount ntfs drives? can your video camera can handle ntfs drive?
If your rooted you may want to look at ntfs support in your kernel, i know chainfire's is ntfs compatible. Hope this helps.
justkim said:
Any way I can transfer larger files?
Click to expand...
Click to collapse
Can transfer large files from your portable HD (or an USB stick) to the phone, with the OTG cable? Connect the HD, then copy a file from it using My Files.
Turns out the file manager I was using (eFile) cut the transfers after exactly 1.95GB (showed the integer as 1GB)
Tried with My Files - worked like a charm, transferring directly from Cam to HDD or any other combination I like.
Thanks Guys!!!
Congrats.

[Q] how to format sd card to copy/play 4gb+ vids?

well the title says it.
i got 12gb internal and am buying a 64gb sd card.
so i'd like to rip my blue rays with lossess quality and play them on an hdtv at the camping.
i've been able to rip some movies down to 5gb. if the settings are tweaked to anything less, the loss is not acceptable (given the device can handle 1080p no probs)
so has anyone formatted their sd card to copy/play 4gb+ vids? if so, plz respond.
another question: has anybody tried to record a vid so long that it got bigger than 4gb? what happens then?
thanx in advance
exfat
Just format it to extFAT.
Sent from my GT-I9300 using XDA
Format it to eXFat using your computer (Not the phone, phone formats it to FAT32). That's it
I have a 32gb. Is it possible to format it to exfat?
32 gb Exfat format y.
jje
Sent from my GT-I9300 using xda premium
much thanx. u guys are awesome!! :good:
As long as you keep it under 5 gigs you should be fine, apparently there's a software issue when it's over 6 gigs, got a bunch of flix around 7-8 gigs that play awesome but there's no audio. Looked around quite a bit but couldn't find a fix for it anywhere..
Sent from my GT-I9300 using xda premium
has anyone managed to get an 8gb+ vid playing after formatting it?
it'd be awesome to rip BRDs almost lossless at 1080p and play them at our camp. or at any location with hdmi and an hdtv for that matter.
wicked1683 said:
Format it to eXFat using your computer (Not the phone, phone formats it to FAT32). That's it
Click to expand...
Click to collapse
Are you sure about this? I only ask because cyanogenmod is incompatible with exfat. My sd card was formatted in the phone but would still not work with cyanogenmod leading me to believe that the phone formatted the card to exfat.
Ry4n said:
Are you sure about this? I only ask because cyanogenmod is incompatible with exfat. My sd card was formatted in the phone but would still not work with cyanogenmod leading me to believe that the phone formatted the card to exfat.
Click to expand...
Click to collapse
Yep that's correct the phone formats it as exfat. Just had to convert mine back to fat32 as there's a problem with exfat recognising some music files on the S3.
Ry4n said:
Are you sure about this? I only ask because cyanogenmod is incompatible with exfat. My sd card was formatted in the phone but would still not work with cyanogenmod leading me to believe that the phone formatted the card to exfat.
Click to expand...
Click to collapse
I'm using stock TW and not rooted and when I bought my microSD I immediately formatted it using my Galaxy S3.
I had problem transfering large files using MTP and someone here suggested to format it to exfat using my computer. I checked 1st uing "My Computer" the format of my microSD (which i previously formatted using the phone) and its "FAT32", I reformatted it to exfat and everything is fine.
---------- Post added at 02:08 PM ---------- Previous post was at 01:56 PM ----------
Umyd said:
has anyone managed to get an 8gb+ vid playing after formatting it?
it'd be awesome to rip BRDs almost lossless at 1080p and play them at our camp. or at any location with hdmi and an hdtv for that matter.
Click to expand...
Click to collapse
Could you please try to use MX Player and set the decoder to SW (disable fast mode).
Previously I had a problem playing 720P mkv files using stock player and MX player (Decoder set to HW). The video was playing smooth at 1st but after sometime I will notice that the audio will play first before the actual movement in the video. I tried the above solution and it works. I'm not sure if it will work for 1080p with other video format
I though about this also. Here's my conclusion.
FAT32 (File Allocation Table)
Read/Write FAT32 from both native Windows and native Mac OS X.
Maximum file size: 4GB.
Maximum volume size: 2TB
NTFS (Windows NT File System)
Read/Write NTFS from native Windows.
Read only NTFS from native Mac OS X
To Read/Write/Format NTFS from Mac OS X: Install NTFS-3G for Mac OS X (free)
Some have reported problems using Tuxera (approx 33USD).
Native NTFS support can be enabled in Snow Leopard, but is not advisable, due to instability.
Maximum file size: 16 TB
Maximum volume size: 256TB
HFS+ (Hierarchical File System, a.k.a. Mac OS Extended)
Read/Write HFS+ from native Mac OS X
Required for Time Machine or Carbon Copy Cloner backups of Mac internal hard drive.To Read/Write HFS+ from Windows, Install MacDrive
To Read HFS+ (but not Write) from Windows, Install HFSExplorer
Maximum file size: 8EiB
Maximum volume size: 8EiB
exFAT (FAT64)
Supported in Mac OS X only in 10.6.5 or later.
exFAT partitions created with OS X 10.6.5 are inaccessible from Windows 7
Not all Windows versions support exFAT. *See disadvantages.
exFAT (Extended File Allocation Table)
Maximum file size: 16 EiB
Maximum volume size: 64 ZiB
*Disadvantages
The disadvantages compared to FAT file systems include:
Microsoft has not released the official exFAT file system specification, and a restrictive license from Microsoft is required in order to make and distribute exFAT implementations. Microsoft also asserts patents on exFAT which make it impossible to re-implement its functionality in a compatible way without violating a large percentage of them.[11] This renders the implementation, distribution, and use of exFAT as a part of free or open-source operating systems or of commercial software, for which the vendors could not obtain a license from Microsoft, not only technically difficult, but legally impossible in countries that recognize United States software patents.
Limited or no support outside Windows and Mac OS X operating systems as of 2012—most consumer electronic devices, such as televisions and A/V receivers, could only handle FAT12/FAT16/FAT32, rendering exFAT (and flash memory formats using it) impractical as a universal exchange format. (This may change if SDXC cards and Memory Stick XC come into wide use, as they define exFAT as the file system to be used in their specifications even though this is not a technical requirement.)
Windows XP and Windows Server 2003 users must have Service Pack 2 or later and install an update to support exFAT.
Windows Vista must be Service Pack 1 or later for exFAT support.
Drives formatted using exFAT cannot be read by any version of Windows prior to Windows XP or by any version of DOS or OS/2 (unless emulated as otherwise).
Windows Vista is unable to use exFAT drives for ReadyBoost. Windows 7 removes this limitation, enabling ReadyBoost caches larger than 4 GiB.[12]
The standard exFAT implementation only uses a single file allocation table and free space map. FAT file systems instead used alternating tables, as this allowed recovery of the file system if the media was ejected during a write (which occurs frequently in practice with removable media). The optional TexFAT component adds support for additional backup tables and maps, but may not be supported.
Support for up to 2,796,202 files per subdirectory only.[1][nb 3] While Microsoft documents a limit of 65,534 files per sub-directory for their FAT32 implementation, technically there is no such limit and FAT32 implementations in other operating systems allow an unlimited number of files up to the number of available clusters (that is, up to ca. 268,304,373 files, 228 - 11[13] - 131,072[14]
Reduced file data I/O performance compared to FAT32 due to smaller cluster sizes and more complex data structures.[citation needed]
More complex design results in higher code footprint and memory usage compared to FAT implementations. FAT12/FAT16/FAT32 can be implemented in as little as a 512 bytes code and 1 KB data for low-performance read-only versions and a few kilobytes code plus a few hundred KB data for high-performance read-write versions, allowing native support for them even in light-weight operating systems such as DOS, thereby enabling their usage also on older PCs and in small embedded systems. exFAT implementations require magnitudes more system resources rendering this approach impractical.
And added to this I spoke to Samsung Tech on this issue particularly the (Samsung Galaxy S III).I was told Samsung Galaxy S III has no support for exFAT.
---------- Post added at 03:10 PM ---------- Previous post was at 02:36 PM ----------
Also check this out http://forum.xda-developers.com/showthread.php?t=1724078
Umyd said:
has anyone managed to get an 8gb+ vid playing after formatting it?
it'd be awesome to rip BRDs almost lossless at 1080p and play them at our camp. or at any location with hdmi and an hdtv for that matter.
Click to expand...
Click to collapse
I'm not getting audio on BD rips @ 1080p. Seems like all the players in the market are having issues processing DTS HD or Dolby Digital. Strangely enough the 720p rips are working fine as far as audio & video are concerned. Been waiting on a fix since I got my SGSIIIs.

[Q] Transferring Between Android Devices

Hi, I'm going on vacation soon and since my tablet (10.1) has only a limited amount of space, I was wondering if there is a quick and easy way to transfer files (movies and tv shows, ~700mbs) from my android phone (s3) to the tablet, without the use of the internet, as I might not have any internet connect and I wont be bringing my laptop. Thanks for the help.
wifi direct in the settings menu or try an app called airdroid if you have a wifi router. Using the browser you can via wifi download and upload files
Sent from my GT-P7500 using xda app-developers app
Or get a USB OTG dongle (if your phone supports mass storage).
It can be quite slow, but I've used bluetooth to transfer files as large as 180MB between my phone and galaxy tab before. You could try packaging your files in a zip (use es file explorer or something similar) and then transferring with bluetooth (keep in mind, it can take around 10 mins to copy ~200MB).
Wifi file sender. Make one device a wifi hotspot. Then connect the other and run the app on both devices. You'll know what to do...
Sent from my cm7 - powered Nokia 3210
H2O37 said:
Hi, I'm going on vacation soon and since my tablet (10.1) has only a limited amount of space, I was wondering if there is a quick and easy way to transfer files (movies and tv shows, ~700mbs) from my android phone (s3) to the tablet, without the use of the internet, as I might not have any internet connect and I wont be bringing my laptop. Thanks for the help.
Click to expand...
Click to collapse
I find myself in this situation because I travel pretty frequently abroad and for stays shorter than a month I bring with me only my smartphone (Galaxy Note) and my tablet (G.Tab 10.1" 3G) and there are tons of options:
- Wi-Fi direct. it's built-in in both the G.Tab and the S3 and you don't need internet, routers or cables and it's pretty fast, it's probably the best option for what you need
- free apps like Airdrop or Samsung Kies Air or (the one I use most because has both a browser-based files transfer and an FTP server, I have the paid version) Remote Web Desktop (for these you need a router though)
- an USB OTG adaptor for the G.Tab (AFAIK there is only the original Samsung one) and then connect the S3 as "mass storage device" (check in the settings, on my Note it's under "Wireless and networks"-->"USB settings"-->"Connect as mass storage device". you can also use an USB flash drive to store your movies or even a PC hard disk if it's in a powered external case
- the SD memory card reader adaptor from Samsung. same as the USB adaptor except you connect to it SD cards or microSD cards in an SD size adaptor. you can for example connect to the G.Tab the microSD card from your S3 (since you seem to store whole movies on your S3 I assume you are using also removable memory in it)
- Bluetooth (exactly like Wi-Fi direct except it's way slower)
I personally use all of the above methods, it all depends on what you have to transfer. Apps like Airdroid, Kies Air and Remote Web Desktop I use mainly at home with my PC (I hate using cables so rarely use the Note's and the G.Tab's USB cables with the PC), between my tablet and smartphone for small and few files I use Bluetooth, for big but few files I use Wi-Fi direct, for many files of whatever size I use both the USB OTG and SD card reader adaptors from Samsung (at the time I bought the G.Tab they were sold together with a small discount and they are both useful in slightly different ways).
xdapao3 said:
- an USB OTG adaptor for the G.Tab (AFAIK there is only the original Samsung one) and then connect the S3 as "mass storage device" (check in the settings, on my Note it's under "Wireless and networks"-->"USB settings"-->"Connect as mass storage device". you can also use an USB flash drive to store your movies or even a PC hard disk if it's in a powered external case
Click to expand...
Click to collapse
I reckon this is your best bet, especially for speed.
I bought my USB connector for my Tab 10.1 for around £3 off eBay and also the USB connector for my S2 for around £2 from the same place (3 cheers for the 'Bay' ). Easy as pie and is a great help when travelling...
I've bought TWO (one at home other at office) of this:
http://www.ebay.co.uk/itm/USB-Conne...uting_CablesConnectors_RL&hash=item20c67757be
Perfect!!!
Plus with the cheapest(smaller) card reader :
http://www.ebay.co.uk/itm/USB-All-I...Readers_RL&hash=item2eb13e7e1e#ht_2399wt_1187
Just think the tablet could bring this interface on stock, but works just fine.
I personally use WiFi Direct for big files like that, not really tried folders or multiple files (I'll give out a go tonight though) but of tone not tried that feature, you should, it's one of those features that I think should be highlighted more by Samsung in my opinion.
Sent from my GT-N7000 using Tapatalk 2
RavenY2K3 said:
it's one of those features that I think should be highlighted more by Samsung in my opinion.
Click to expand...
Click to collapse
I think people should RTFM!! :laugh:
Questions go in the Q&A section

[HELP] Tab 2 and WD HD ....

Hey guys..
I have a WD 1tb HD which iz self powered...
I want to use it with my tab 2 p3100
I understand that tab cannot supply enough power to the self powered HD..
I have made a Y-cable for the purpose...
The HD lights up and vibrates indicating that its receiving power but unfortunately it doesn't show up on the tab..
Then I felt the cable might be the reason and I brought a usb power hub...
Its exactly the same situation with the usb power hub as well..
Plze help me out with getting my HD work with the tablet...
I have searched a lot but couldn't get a proper way to get things going...
My tab iz rooted with sungsonic hd v2 running...
USB power hub iz iball lappie...
WD HD uses usb 3 but tab doesn't recognize it with usb 2 cable as well..
Share it if u know it...
Sent from my GT-P3100 using xda premium
mayank9856 said:
Hey guys..
I have a WD 1tb HD which iz self powered...
I want to use it with my tab 2 p3100
I understand that tab cannot supply enough power to the self powered HD..
I have made a Y-cable for the purpose...
The HD lights up and vibrates indicating that its receiving power but unfortunately it doesn't show up on the tab..
Then I felt the cable might be the reason and I brought a usb power hub...
Its exactly the same situation with the usb power hub as well..
Plze help me out with getting my HD work with the tablet...
I have searched a lot but couldn't get a proper way to get things going...
My tab iz rooted with sungsonic hd v2 running...
USB power hub iz iball lappie...
WD HD uses usb 3 but tab doesn't recognize it with usb 2 cable as well..
Share it if u know it...
Sent from my GT-P3100 using xda premium
Click to expand...
Click to collapse
Install "USB device info" from the market, connect the HDD and see if the program can find the HDD.
If yes, it's very strange, and (IMHO) the problem is the tablet/kernel, because it can' t find a proper driver for the usb to sata box..
This is why the HDD and the usb to sata box haven't a logo like "made for android" or "work with android", because some android have some driver, and other android have other driver.
You can try to use another usb to sata box and see if it works with the same HDD...
A similiar problem come if you connect a webcam to your tablet, usb device info can see it but you can't use it without a proper app/custom kernel
Hope I've helped you a little bit,
Bye!
The HD has to be formatted FAT32 also as the TAB will not read NTFS unless you can find a custom kernel to allow it.
Agoattamer said:
The HD has to be formatted FAT32 also as the TAB will not read NTFS unless you can find a custom kernel to allow it.
Click to expand...
Click to collapse
Wut?
My tab when it was stock did read ntfs
Aliendex said:
Wut?
My tab when it was stock did read ntfs
Click to expand...
Click to collapse
I don't think so. NTFS is a microsoft format and microsoft does not want to share the ability. So Android kernel by default does not read it. It's FAT32 or exFat I believe. I have heard that NTFSMount.apk may add that ability but I have never tried it. Your Tab needs to be rooted and mine is not.
Edit: Other apps on Google Play will do this but Tab must be rooted.
Well agree wid agoattamer
One need to have a rooted device for ntfs , there are various apps in play store for mounting NTFS / hfs formats, eq Paragon ex fats, ntfs
otherwise fat 32 is better one to go wid as it works wid both plateforms(windows n android)
navneel said:
Well agree wid agoattamer
One need to have a rooted device for ntfs , there are various apps in play store for mounting NTFS / hfs formats, eq Paragon ex fats, ntfs
otherwise fat 32 is better one to go wid as it works wid both plateforms(windows n android)
Click to expand...
Click to collapse
Fat32 has a theorical limit of about 2TB, and it support max 4GB for a file.
It's on-sense for an external 3,5" hard drive to waste it's performance with this old (1996) file-system.
I prefer to root my tablet and enable other file-system like ntfs orr exfat aka fat64 for both platforms or an ext2/3/4
That may be a hardware issue. Try with an OTG cable or adapter plugged in USB connector of your P3100.
(OTG stands for On-The-Go whatever that means)

Slow USB drive on Nexus Player (Marshmallow)

I recently picked up a Google Nexus player from my local supplier for @ $50. I then used an adapter to install a USB hub. In the hub I have a 32gb thumb drive and a dongle for a wireless keyboard and mouse. In the settings area for the thumb drive are options to move some of the files from the main unit to the thumb drive (after setting it up as a dedicated player extension). I had previously downloaded and installed Kodi Isengard 14.2. At one time when doing the data transfer to the USB drive I had a message (drive seems slow). Subsequent to that when loading Kodi I had the error message "waiting on the USB drive". I reseated the USB drive and repowered the unit.... Kodi then came up ok. I'm wondering if I can remove the USB drive (with an eye to replacing it with a faster one) or will this cause a failure of some of the apps on the system. (ie Kodi, Sideloader, ESfile manager, etc)? Also, is there any method of reversing the use of the USB drive for these files. (move everything back to the Player)?
Go to the settings and in storage go to the Internal drive and you will see an option to move things back to Internal storage.
Then go to the thumb drive settings and select to unmont it.
Don't remove till you do all that.
Try and get the fastest parts you can. You may still get the slow message, but things will run better overall.
Sent from my XT1575 using Tapatalk
There needs to be a compatibility list. I originally used a 64gb usb 3 Kingston data traveler. And I would get the slow message. And data was slow, apps were slow running. Used a pny 2.0 32gb and I would not get the slow message, but it would never format correctly. Finally using a Seagate 1tb external hdd, and while it seems like it would be the slowest device, it actually works exactly how it should. No slow message, formats correctly, and apps run perfectly when loaded from the hdd.
Sent from my SAMSUNG-SGH-I337 using Tapatalk
What is the best hard drive an or usb for the nexus player?
same here, kingston data traveler usb 2.0 8GB reports slow, kingston data traveler usb 3.0 16GB seems ok.
for some reason I can no longer move apps to usb stroage on my nexus player runing stock android 6.0.1can anybody help me reslove this problem thanks?
It's kinda ridiculous how screwed up external storage is on the np. In any other case Ive come across, a thumb drive is a thumb drive is a thumb drive, with the only difference being the read and write speeds. I can't believe how finicky it is w/r/t ext storage, esp when it was an advertised feature for 6.0.

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