[Q] File transfer performance - Asus Transformer TF700

When you copy large files to/from your TF700 using Windows MTP via USB, how fast is it (in kB/s or MB/s)?
Also, does anyone have numbers using WiFi (please also specify which program/protocol you were using)?

_that said:
When you copy large files to/from your TF700 using Windows MTP via USB, how fast is it (in kB/s or MB/s)?
Also, does anyone have numbers using WiFi (please also specify which program/protocol you were using)?
Click to expand...
Click to collapse
Fairly slow....it doesn't tell me but takes 60+ secs to copy a 500mb file.

sbdags said:
Fairly slow....it doesn't tell me but takes 60+ secs to copy a 500mb file.
Click to expand...
Click to collapse
500 MB in 60 seconds would be actually quite fast - now it depends how much "+" is
I got only about 2.3 MB/s via adb and wanted to know if there is a point in trying something else.

_that said:
500 MB in 60 seconds would be actually quite fast - now it depends how much "+" is
I got only about 2.3 MB/s via adb and wanted to know if there is a point in trying something else.
Click to expand...
Click to collapse
Adb is much slower for me. I'd say 60 to 90 secs to be safe for normal cable transfers. If I push a 500 mb file over adb I'd be looking at 5 mins plus.

Over USB is slower than it should be; However my SGS3's MTP connection is equally sluggish, so it's more likely the protocol's fault.
A 300MB .mp4 takes around 35-40 seconds over MTP.
Heh, I once copied over a folder with 17.101 files worth a total of about 343MB (it's a lot of saved websites for offline reading. .html makes more clutter, but is considerably smaller than .pdf) and it literally took 3 hours. THREE HOURS.
Frankly best thing to do is just put anything above 50MB on the MicroSD through a cardreader. And then copy internally if need be. (Though don't try to do that with a folder containing 17k files. It crashed my poor tablet.)

ShadowLea said:
Over USB is slower than it should be; However my SGS3's MTP connection is equally sluggish, so it's more likely the protocol's fault.
A 300MB .mp4 takes around 35-40 seconds over MTP.
Click to expand...
Click to collapse
I've now installed simple-mtpfs on my PC, and pulled a big file from the tablet with almost 13 MB/s. Writing was only half as fast, but still much better than with adb. And it's not as worthless as mtpfs, which didn't show 90% of the files on my tablet.
ShadowLea said:
Heh, I once copied over a folder with 17.101 files worth a total of about 343MB (it's a lot of saved websites for offline reading. .html makes more clutter, but is considerably smaller than .pdf) and it literally took 3 hours. THREE HOURS.
Click to expand...
Click to collapse
Maybe it would have been faster to zip everything, transfer the zip, and then unpack on the tablet.

_that said:
I've now installed simple-mtpfs on my PC, and pulled a big file from the tablet with almost 13 MB/s. Writing was only half as fast, but still much better than with adb. And it's not as worthless as mtpfs, which didn't show 90% of the files on my tablet.
Maybe it would have been faster to zip everything, transfer the zip, and then unpack on the tablet.
Click to expand...
Click to collapse
Things seem to take quite awhile, but I am noticing with 4.2.1 that the lag and the file transfer looks to have increased a little. Am I right, even a little is still right , or am I just crazy?
Tylor
Sent from my ASUS Transformer TF700T Infinity Pad Using Tapatalk HD
Rom: Cromi-X 4.3b5 with MaxKernal V3
UPDATE FOR TF700 USERS!!! AND THE 4.2.1 UPDATE http://forum.xda-developers.com/showthread.php?t=2204100

I just tried transferring files between 194MB and 687MB from my PC to my tablet and it was always transferring a little over 8 MB/s. Usually 8.5MB/s. When I transferred files from my tablet to my PC I measured between 18MB/s and 21MB/s although after rebooting my tablet, it always measured between 20MB/s and 21MB/s. To measure I divided the file size by the time I measured with a stop watch so I think it is fairly accurate. My tablet is running CROMi-X v4.3b6 and with hundsbuah_v3.0.0-OC_JB4.2_opt_ramdisk_fsck kernel.
Do these measurements seem reasonable? I haven't done anything special to my laptop to improve the speed, but the speed I measured also matches my tablet's IO speed benchmarks. Also, unused ram on my tablet when I was transferring files increased to over 540MB???

I did a few more tests using your kernel and the results were about the same. I got between between 8.4MB/s to 8.6MB/s speed sending large files from my computer to my tablet and between 22MB/s to 23MB/s from my tablet to my computer.

bmlarson said:
I just tried transferring files between 194MB and 687MB from my PC to my tablet and it was always transferring a little over 8 MB/s. Usually 8.5MB/s. When I transferred files from my tablet to my PC I measured between 18MB/s and 21MB/s although after rebooting my tablet, it always measured between 20MB/s and 21MB/s.
Click to expand...
Click to collapse
Thanks - that proves that USB speed is not as hopeless as I thought from using adb. Maybe my results via mtp are slower than yours because simple-mtpfs is slower than Windows (or I just need to add some tuning parameters), or because I am still running stock Asus 4.2 from a microSD card.
bmlarson said:
Also, unused ram on my tablet when I was transferring files increased to over 540MB???
Click to expand...
Click to collapse
That RAM is used for I/O caching, so it's not really unused.

_that said:
Maybe it would have been faster to zip everything, transfer the zip, and then unpack on the tablet.
Click to expand...
Click to collapse
I tried rarring it, but that set the ETA on 8 hours with Winrar and 9 with 7zip, so I gave up on that :laugh:

_that said:
Also, does anyone have numbers using WiFi (please also specify which program/protocol you were using)?
Click to expand...
Click to collapse
651MB file in 3m26s or about 3.2MB/s (25.6Mbit/s). Downloaded over HTTP using Opera to class-10 32GB SanDisk microSD. Wireless is 802.11g (excellent signal, about three feet from the access point), webserver connected locally at 100Mbit/s. Not great frankly, may have to play with this some more at some point...
ShadowLea said:
I tried rarring it, but that set the ETA on 8 hours with Winrar and 9 with 7zip, so I gave up on that :laugh:
Click to expand...
Click to collapse
Did you try without compression enabled (a.k.a. "store" mode)? Should bring that time down significantly

becomingx said:
Did you try without compression enabled (a.k.a. "store" mode)? Should bring that time down significantly
Click to expand...
Click to collapse
I did, it didn't help much, only 30 minutes less. It's probably more because of the large number of files (17.000 is a bit much xD) rather than the size of them. Just copying them from one internal harddrive to the other takes over half an hour, so.. :silly:

ShadowLea said:
I did, it didn't help much, only 30 minutes less. It's probably more because of the large number of files (17.000 is a bit much xD) rather than the size of them. Just copying them from one internal harddrive to the other takes over half an hour, so.. :silly:
Click to expand...
Click to collapse
I just tested compressing my kernel working directory (45378 files in 3014 directories, 2.1 GB total) into a tar.gz. It took less than 35 seconds to create a 803 MB compressed file.
That's on a 4 year old PC (i7 860) with SSD. Maybe you need an SSD.

_that said:
Maybe you need an SSD.
Click to expand...
Click to collapse
Of that I have no doubt! :laugh:

ShadowLea said:
I did, it didn't help much, only 30 minutes less. It's probably more because of the large number of files (17.000 is a bit much xD) rather than the size of them. Just copying them from one internal harddrive to the other takes over half an hour, so.. :silly:
Click to expand...
Click to collapse
Wow! Thought for sure that would drop it much lower.
_that said:
I just tested compressing my kernel working directory (45378 files in 3014 directories, 2.1 GB total) into a tar.gz. It took less than 35 seconds to create a 803 MB compressed file.
That's on a 4 year old PC (i7 860) with SSD. Maybe you need an SSD.
Click to expand...
Click to collapse
For fun I tried just a tar-up of the linux-3.8.8 source tree after a `make allyesconfig' (87,829 files in 5,209 directories @ 8.1GB) on a single 7200RPM SATA-300 HD. Took only 8m24s (and yes, I did drop all caches beforehand ). Might this be a case of Linux FTW? lolz

Have recently become fed up with how bad USB file transfer is with this thing. I got a microSD adapter with the last 32gb micro card I bought and that is so much faster than hooking it up to pc. Flash drive via the dock is probably much faster also

Related

Anyone got slow USB Transfer speeds?

I got myself a 16GB Class 10 sd card, and the direct transfer speeds are pretty good. I get up to 15MB/s. However, when I have it plugged in, it's a different story. I can't go higher than 1MB/s, sometimes it's as bad as just 500 kilobytes. Why is this? Does USB 2.0 suddenly suck?
I have had the same issue since flashing CM9. If I take the card out and put it directly in my laptop its back to normal speeds. Anyone know of a fix?
Sent from my HTC Sensation using Tapatalk 2
Ive noticed this a while back even on the Glacier. AOSP roms would have slower data transfer speeds compared to Sense roms. I have a ADATA 32GB c10 and average around 10-13MB in the card reader and on Sense roms, but average around 3-6MB on AOSP...sometimes as bad as 1MB as you said
aznprodgy said:
Ive noticed this a while back even on the Glacier. AOSP roms would have slower data transfer speeds compared to Sense roms. I have a ADATA 32GB c10 and average around 10-13MB in the card reader and on Sense roms, but average around 3-6MB on AOSP...sometimes as bad as 1MB as you said
Click to expand...
Click to collapse
I just left a Sense ROM and even Sense had the same bad transfer speeds. My Glacier is sitting in a corner doing nothing so I'll have to try that out. My Galaxy Tab 10.1 seems to transfer (with it's own cable) pretty quickly, so I think I might blame Android on this. Even worse, when the screen locks, the speed drops to a little over 300kb/s, or sometimes it just stalls
thats weird, Ive only experienced that problem with AOSP roms
I have this issue occasionally and it traces back to the USB host controller on the PC.
Fire up your device manager and see if you have any yellow warning triangles. Right click and disable, then re-enable. After doing this my transfer speeds via USB cable return back to normal
Mr_Erratic said:
I have this issue occasionally and it traces back to the USB host controller on the PC.
Fire up your device manager and see if you have any yellow warning triangles. Right click and disable, then re-enable. After doing this my transfer speeds via USB cable return back to normal
Click to expand...
Click to collapse
nope, no yellow triangles on my end
Mr_Erratic said:
I have this issue occasionally and it traces back to the USB host controller on the PC.
Fire up your device manager and see if you have any yellow warning triangles. Right click and disable, then re-enable. After doing this my transfer speeds via USB cable return back to normal
Click to expand...
Click to collapse
Interesting, I'll take a look at that the next time I'm in Windows.
GazaIan said:
I got myself a 16GB Class 10 sd card, and the direct transfer speeds are pretty good. I get up to 15MB/s. However, when I have it plugged in, it's a different story. I can't go higher than 1MB/s, sometimes it's as bad as just 500 kilobytes. Why is this? Does USB 2.0 suddenly suck?
Click to expand...
Click to collapse
I also have 32gb micro SD card class 10 , the transfer speed via USB is not more than 1mb/sec which is too slow for class 10
I use stock ROM ...please tell me a solution
I have found a work around by either 1) put the SD card in a different card reader or 2) boot my phone into recovery and transfer what I want over. Maybe that could help, it does for me at least.
Sent from my HTC Sensation XE using Tapatalk 2

128GB sd card for dock

Well just ordered this
Lexar Professional 400x 128 GB SDXC
from amazon for less than $140, seems like a good deal, hope it holds up to 1080p movies
I have the same SD card and playing 1080 mkvs on it with Dice and BS Player are no problem at all, love the massive storage space. Just one caveat though, I tried copying the entire card over to a windows 7 machine and the Infinity rebooted, so there's still and issue with large file transfers that I hope JB will take care of. In any case welcome to the max storage club
psych2l said:
I have the same SD card and playing 1080 mkvs on it with Dice and BS Player are no problem at all, love the massive storage space. Just one caveat though, I tried copying the entire card over to a windows 7 machine and the Infinity rebooted, so there's still and issue with large file transfers that I hope JB will take care of. In any case welcome to the max storage club
Click to expand...
Click to collapse
Awesome, that is what I wanted to hear
Sent from my SGH-T989 using Tapatalk 2
Strange thing, put it into the dock and nothing
Sent from my SGH-T989 using Tapatalk 2
cragains said:
Strange thing, put it into the dock and nothing
Click to expand...
Click to collapse
Have you used a card in the dock before? The ribbon cable wasn't completely connected in mine.
All new tablet and dock, I had to insert in a few times, but nothing.
So I power down, and let it fully charge.
Powered on with dock, tried it again.
Wham....WORKS!!!!!
Sent from my SGH-T989 using Tapatalk 2
Glad you got it all sorted out, I already have mine half filled with various anime lol
psych2l said:
Glad you got it all sorted out, I already have mine half filled with various anime lol
Click to expand...
Click to collapse
Really, I am getting there. Just finished Baccano, and Ergo Proxy, now I'm watching Ghost in the machine. What do you watch?
Sent from my SGH-T989 using Tapatalk 2
Love the opening to Baccano, it's so god damn catchy lol. Right now I'm getting through the massive first season of Sket Dance, AKB0048, and Moyashimon. As you can tell I have a pretty eclectic taste lol. I sprung for the crunchyroll premium account too and it's nice, but the app sadly doesn't output 1080p streams yet although they keep saying it's in the works. Thankfully I can still access the Hi-def streams through flash
Does it work with the device it self or through the dock ?
Sent Via TF700T through XDA-app
Mr.Droid said:
Does it work with the device it self or through the dock ?
Sent Via TF700T through XDA-app
Click to expand...
Click to collapse
Well the tablet doesn't have an SD card slot, only microSD. However,
It works perfect with the dock
Sent from my SGH-T989 using Xparent ICS Tapatalk 2
psych2l said:
I have the same SD card and playing 1080 mkvs on it with Dice and BS Player are no problem at all, love the massive storage space. Just one caveat though, I tried copying the entire card over to a windows 7 machine and the Infinity rebooted, so there's still and issue with large file transfers that I hope JB will take care of. In any case welcome to the max storage club
Click to expand...
Click to collapse
Was copying from 32GB samsung micro to the Lexar 128GB on the Transformer Infinity (stock) and it rebooted after transferring about 4GB of 15GB of data. Might have something to do with the fact that the Lexar comes formatted exFat and not NTFS. Could be a tablet I/O issue.
I dont have my 2TB portable HHD to test the transferring abilities of the Lexar using a Windows 7 laptop system, but It will be the next thing I test the Lexar with.
(Formatted the Lexar NTFS)
(Will copy a 8-15GB 1080p movie, and see if the Infinity can handle it)
I thought ExFat let you work past the 4GB Total memory card size limitation, but not the >4GB "single file" size limitation, if im right you will only be able to copy a bigger than 4GB file onto an NTFS format disk.
No, exFAT allows file sizes MUCH larger than 4 GB. Theoretically 16 EiB, in practice "only" about 128 PiB since the current implementation only uses a 32 bit FAT which limits the maximum volume size to ~128 PiB.
Source: http://en.wikipedia.org/wiki/ExFAT#cite_note-NB_Size_File-0
People have had issues with copying large files to the internal storage as well, so it's most likely a (file system) driver issue. Could be memory leakage or just hardcoded file size limits (wouldn't surprise me...) causing a buffer overflow. An unhandled fault at driver level = reboot/lock up (usually).
I currently have 1 Samsung 32 MicroSD in the tablet and another via an SD-adapter in the dock, both in exFAT so I could use +4gig files.
My Infinity reboots when transferring to either card via Win7 (big files). However, transferring to the internal storage gives no problems (albeit slow). Moving files from internal to either of the cards via Win7 makes it reboot too. So I filled both cards directly instead of leaving them in the Infinity.
I have used exFAT as it was stated here somewhere NTFS could give problems.. Well, exFAT isn't working great, either.. I'm going to try and see what happens in NTFS but I guess it will be the same story..
Anyway, I think it's a firmware/software issue, hopefully Asus fixes it (or JB)
TimoLimo said:
I currently have 1 Samsung 32 MicroSD in the tablet and another via an SD-adapter in the dock, both in exFAT so I could use +4gig files.
My Infinity reboots when transferring to either card via Win7 (big files). However, transferring to the internal storage gives no problems (albeit slow). Moving files from internal to either of the cards via Win7 makes it reboot too. So I filled both cards directly instead of leaving them in the Infinity.
I have used exFAT as it was stated here somewhere NTFS could give problems.. Well, exFAT isn't working great, either.. I'm going to try and see what happens in NTFS but I guess it will be the same story..
Anyway, I think it's a firmware/software issue, hopefully Asus fixes it (or JB)
Click to expand...
Click to collapse
I believe I have my 32GB micro, and 128GB SD cards formatted as NTFS and haven't had this problem since then. Of coarse I flashed a custom ROM to the infinity, which has helped maximize its potential.
It boggles my mind that I paid $650 for a tablet+dock that has so many quirks, and issues. Like light bleed from the side, minimal as it may be.
Although, I was playing dead trigger, and shadowgun last night using a micro HDMI cable hooked up to my 1080p HP monitor, and a USB 360 controller, and I was AMAZED at the quality and frame rate of the tablet...
I'm going to do some tests, with my new laptop and see if I get that random reboot during file transfer (Using a 24GB 1080p movie)
I have ordered also the SD Card... SO mutch cheaper then in Netherlands
Amazon 154 euro. Local store prices between 300 a 350euro.
I have format a other SD card with HFS+ filesystem. Installed Paragon NTF/HFS+ from Google Play.
Mount and go with the flow..
You can copy files lager then 4GB on a HFS+ formatted sd card
160bpm said:
I have ordered also the SD Card... SO mutch cheaper then in Netherlands
Amazon 154 euro. Local store prices between 300 a 350euro.
I have format a other SD card with HFS+ filesystem. Installed Paragon NTF/HFS+ from Google Play.
Mount and go with the flow..
You can copy files lager then 4GB on a HFS+ formatted sd card
Click to expand...
Click to collapse
I use ntfs with BSPlayer and never have anymore issues playing movies, have the micro HDMI hooked into my 1080p monitor...everything is flawless...
Never heard of HFS+..
Any benifits to this file system over ntfs?
Sent from my SGH-T989 using Xparent ICS Tapatalk 2
HFS+ is the default file system used in OS X, you'd need drivers to get it to work under Windows. Stick with NTFS (or exFAT) if you're primarily a Windows user
Einride said:
HFS+ is the default file system used in OS X, you'd need drivers to get it to work under Windows. Stick with NTFS (or exFAT) if you're primarily a Windows user
Click to expand...
Click to collapse
Ah...that I am, and will do thanks
Sent from my SGH-T989 using Xparent ICS Tapatalk 2

[Q] Moving large fimes to SD thru USB

Why is it such a problem moving large files, such as roms, to the sd card from a pc thru usb. It will stop and say something about camera has stopped. I had to put my sd card in the wifes HTC tb to put the rom on the card and put it back in the SG3 to install a rom. Am I missing something?
Thanks, Mike
I have this issue too and hate it big time.
I have to move 200-300mb at a time now.
Moving more is like never gonna happen. Wish they'd fix this. Hate to have to buy a micro sd OTG USB adapter just to move files around.
Try different cables. I am constantly moving large files around with no issues. In fact it's faster than moving files from my hard drives on my cpu. 1gig from sd to cpu takes less than 30 seconds. Faster from external sd/running sd speed boost.
Sent from my VZW GS3 running Synergy/LeanKernel/Dark Horse Rises
Tried several, tried the one that came with the SG3, tried the one that came with the HTC TB, Tried a motorola. All with same result. Moving files off sd is no issue, just moving files onto sd from pc is problematic. Few songs at a time is no issue, but a ROM is not going to happen. Gets all the way done then states camera has stopped and will not go. I keep thinking I must have an option ticked incorrectly somewhere in the phone, but if it is, I can't find it.
Mike
Your in mtp mode, not camera mode correct? Loading onto sd is good for me, 800mb rom's load on I'm less than a min. Weird.
Sent from my VZW GS3 running Synergy/LeanKernel/Dark Horse Rises
Actuall no I was in (PTP) camera mode. I just saw move any files. That must be the issue. I saw the MPT and thought it was just for syncing audio and such. Will try when I get off work. Thats probably the problem I was looking for, Thanks.
Mike
I have the exact same problem (one I've never had with any other phone)
I was trying to copy blue-ray rips to my 64 gig sandisk card while the card was in the phone. I am using a brand new straight from the package cable that came with my second G3 (I have 2 phones). It starts to copy just fine, but quits 1/2 way thru & stops responding. every single time.
This is a brand new I7 PC that I just built a few weeks ago running Windows Seven Pro with 8 gigs of DDR3 RAM.
If I use a universal reader (even thru a USB HUB) the files copy just fine either from any of the three 2 terrabyte secondary hard drives or from the solid state boot drive to the card.
jmorton10 said:
I have the exact same problem (one I've never had with any other phone)
I was trying to copy blue-ray rips to my 64 gig sandisk card while the card was in the phone. I am using a brand new straight from the package cable that came with my second G3 (I have 2 phones). It starts to copy just fine, but quits 1/2 way thru & stops responding. every single time.
This is a brand new I7 PC that I just built a few weeks ago running Windows Seven Pro with 8 gigs of DDR3 RAM.
If I use a universal reader (even thru a USB HUB) the files copy just fine either from any of the three 2 terrabyte secondary hard drives or from the solid state boot drive to the card.
Click to expand...
Click to collapse
More than likely its as annoyingduck said, try mtp mode not ptp(camera). I think ptp is just optimized to do a 'camera' sync onto your computer. (for windows users, that annoying dialog box that pops up asking if you want to sync video, pictures, make a dvd, etc...)
I didn't realize I had the same problem as well. Awhile ago, I noticed that my data transfers would time out and I've only ever used camera mode. Thanks for the tip!
Sent from my SCH-I535 using xda app-developers app
You could also give Airdroid a shot. It works over wifi so it's just a touch slower than the USB cable, but it's super solid and is wireless too!
No mention of manufacturer, class or capacity of sdcard?
Makes a huge difference.
Also make sure to be using an OEM usb cable from a major manufacturer. Knock off or cheapy dollar store cables just don't cut it for charging, let alone transfer...
noingwhat said:
You could also give Airdroid a shot. It works over wifi so it's just a touch slower than the USB cable, but it's super solid and is wireless too!
Click to expand...
Click to collapse
I actually find it a shade faster than my pitiful USB 2.0 ports.
Takes about 5-10 minutes to xfer 700mb files on Airdroid. I think anyways, I'm guestimating from about 10 hours ago when I xferred a 700mb file. I wasn't on top of it but I'm pretty sure it finished closer to the 5 minute mark...
That fixed it, switched mode and tranfered a rom. First time it timed out, tried again and it went through fine. Was using the OEM cable with a 32 gb sd, not sure of class. I know its not a 10. Will take a look at Airdroid, thanks for that tip.
Thanks, Mike
I like using samba wireless. It's free but requires root.
Sent from my SCH-I535 using xda app-developers app
Blue6IX said:
No mention of manufacturer, class or capacity of sdcard?
Makes a huge difference.
Click to expand...
Click to collapse
Sandisk (junk, I've had three burn up) class 10
I can take the card & stick it in my Rezounds & it loads fine, put it back in the G3 & nothing but problems so I gave up and use a card reader.

200GB MicroSD card issues?

Picked up a high-speed MicroSD card and formatted it in my moto z. My device gets hot and full charge battery only lasts about three hours. When I remove the MicroSD card everything goes back to normal.
Using custom kernel and prerooted stock rom.
Anybody having any issues like mine or can shed some light on how to fix the issue? Thanks!
happened to me in moto x force and moto z
with 128gb lexar (works flawlessly on samsung tab a)
changed to sandisk uhs-i and no problems
might be moto is picky when it comes to sd cards
Yep this is a lexar card. Was on sale for $100. I guess I'll have to return it. Thanks for letting me know.
I went back to stock encrypted and it seemed to fix the issue.
don't count on it
Just FYI...
I've a 128 GB 1000x Lexar on my Moto Z with stock kernel and no issues with it... :fingers-crossed:
So another update, turns out Android sucks at indexing and it was constantly scanning my 5800 FLAC files all the time. 100% battery would go to 10% in just under three hours, it had nothing to do with it being a lexar card!
Solution? I put a .nomedia file in my music folder and enabled my music player to ignore that and it scans my whole library with ease. I went to work at 8:30 am today and just got home (6:18 pm) and my battery is still at 85%.
Turbojugend said:
So another update, turns out Android sucks at indexing and it was constantly scanning my 5800 FLAC files all the time. 100% battery would go to 10% in just under three hours, it had nothing to do with it being a lexar card!
Solution? I put a .nomedia file in my music folder and enabled my music player to ignore that and it scans my whole library with ease. I went to work at 8:30 am today and just got home (6:18 pm) and my battery is still at 85%.
Click to expand...
Click to collapse
Really a weird issue...
I've my MP3 and videos on my SD card and I've noted no issue with them...
I've tried multiple high speed UHS-I cards, and formatted as internal, but all of them were either flagged by the phone as "too slow and might affect performance" or gave me heat and battery life issues.
And it would take five minutes after a reboot to show all app icons, or apps would lose login passwords, games lost saves and other annoying issues.
Formatting it as external storage, and just setting the camera to record directly to it works fine though.
Someone from Xiaomi actually said they're not adding or supporting MicroSD as internal due to them always having issues apparently. And it seems to be true.
Shadowdancer123 said:
...
Formatting it as external storage, and just setting the camera to record directly to it works fine though.
....
Click to expand...
Click to collapse
This is in fact my actual situation... no issues with Lexar 128GB 1000x.
enetec said:
Really a weird issue...
I've my MP3 and videos on my SD card and I've noted no issue with them...
Click to expand...
Click to collapse
Maybe because I am using FLAC and have 5900 of them on it hahaha.
Turbojugend said:
Maybe because I am using FLAC and have 5900 of them on it hahaha.
Click to expand...
Click to collapse
Probably! :laugh:
Btw, another reason to not use it formatted as internal storage, is the immense power requirements MicroSD can spend at max write speed.
According to Wikipedia, as much as 100mA, which really explains why the phone heats up when it's formatted that way. And that doesn't include the consumption of the sd card controller.
https://en.m.wikipedia.org/wiki/Secure_Digital
Shadowdancer123 said:
Btw, another reason to not use it formatted as internal storage, is the immense power requirements MicroSD can spend at max write speed.
According to Wikipedia, as much as 100mA, which really explains why the phone heats up when it's formatted that way. And that doesn't include the consumption of the sd card controller.
https://en.m.wikipedia.org/wiki/Secure_Digital
Click to expand...
Click to collapse
It didn't matter how I had it formatted before it was still getting super hot. Now that I haven't been using it, the issue must have been Android trying to index all the files as it's been running fine all week now that I have that .nomedia file in my music folder.
Does anyone know of a 128 card that can handle is phone?? Im gonn try the Samsung Pro+ 128
masterjay21 said:
Does anyone know of a 128 card that can handle is phone?? Im gonn try the Samsung Pro+ 128
Click to expand...
Click to collapse
Using Lexar 1000x with no issues at all here...
enetec said:
Using Lexar 1000x with no issues at all here...
Click to expand...
Click to collapse
And at last... I had issues too!
On sdcard I store TWRP backups (no issues...), Titanium backups (no issues...), Maps (no issues...) and.... Pics & videos... and here I begin to see some weird behaviour...
First I saw Gallery had difficulties on showing pics thumbnials if I go fast between them... then it begins to show some "damaged" pics... at last I saw Camera app begins to crash just after taking a pic... (set to save on sdcard...)
So, I removed sdcard, connected to a PC and copied all files... The copy requested A LOT of time since of read difficulties, BUT all files was ok at last. :highfive:
Then I formatted sdcard and extensively tested with h2testw with no issues and constant speed.
So I formatted again and copied all files back in.
Then I've found a way to have it working fine with Moto Z... (I think... :fingers-crossed
Problem is that Moto Z is set to use a too small cache size for modern sdcards (128 KB) and this probably generate sync issues (and when this happens I saw CPU go wild and phone become warm... in a very similar way with Windows when it is having issues with USB keys... )
So I installed "SD-booster" app from Play Store (yes, it requires root...) and used it to resize cache to a more suitable value of 2048 KB and I haven't had any issue since then... more, my gallery has never been so fast scrolling and taking a LOT of pics in seconds or slow motion video isn't an issue at all now...
masterjay21 said:
Does anyone know of a 128 card that can handle is phone?? Im gonn try the Samsung Pro+ 128
Click to expand...
Click to collapse
I'm using a Samsung Evo 128go and I have no issue
So, I currently only use my 128gb Samsung UHS1 card for external storage only because of the issues other have experienced using it as internal. Not sure if it's on anyone's radar but Sandisk just announced a new micro sd card made specifically to be able to handle the read/write requirements.
http://www.droid-life.com/2017/01/05/sandisks-new-256gb-a1-microsd-card-wants-apps/

Discussion of SDcards used on any device

Moving the intent of a few posts on LineageOS thread to here.
rb1979 said:
Hi everyone,
Some of you reported that SD Card stopped working. This happened to me too today after about 20 hours after the latest update. The case with me is it doesn't fix itself even after a restart. I'm kind of stuck, whatever I want to do with the SD Card it wants me format it. I always had it as internal storage with apps and other things there. I have the the backup from the before the update. Will that fix if I restore it? Just want to mention that I update every week and never missed one. I had very minor issues up until now. Week in and week out everything has been fine and I started using the rom with the first release, all clean, full format and then weekly over the air updates every single week.
If anybody know any solution please let me know, if nothing works or I don't hear anything I'll probably try the backup restoration. BTW, to be specific about SD card no working I always get two notifications, one is "Unsupported SanDisk SD card" and the other is "SanDisk SD card missing"
Thank you
Click to expand...
Click to collapse
KrisM22 said:
Use a card brand other than sandisk and size 32GB or less.
Click to expand...
Click to collapse
rb1979 said:
Thank you for you help, I really appreciate it. The problem I see, right or wrong, is that I had this card for a year with no issues, first under stock rom, then under CM, and now under LineageOS up until the latest update with no issues at all. So it's just hard for me to take the card as the problem. Especially after seeing other people reporting it too lately. Do you have more information than just that? Meaning LineageOS and won't ever get along with sandisk or size larger than 32GB because of some external hardware limitation or something like that. Or this is just general knowledge what works best with LineageOS? In the first case I can think about case I can go and invest into a new card but in the second case I can just wait it out until codebase improves. It would good to know more so I can make better decisions.
Thanks for your help again.
Click to expand...
Click to collapse
KrisM22 said:
In my experience, most folks presenting SDcard problems have sandisk. I personally have had problems with sandisk that has led me to avoid them. I prefer samsung. There are many others. edit currently using a pny U3 32GB, but it's an old one and only does 56/29MBs R/W.
Click to expand...
Click to collapse
adityak1303 said:
+1 @KrisM22. I agree that almost all the users that state that there's a problem with their SD card were using a SanDisk SD card including myself. @rb1979, if you really think that your card isn't faulty, then try using it in some other phone. If you face the same errors then your card is faulty. If it works fine on the other phone, only then can it be considered as a problem with the ROM.
Click to expand...
Click to collapse
rb1979 said:
Thanks both of you, I'll do some testing around and get back to you with my findings.
Click to expand...
Click to collapse
KrisM22 said:
I just ordered one of these because I want to test the 64GB thing as it keeps coming up.
Samsung 64GB 100MB/s (U3) MicroSDXC EVO Select Memory Card with Adapter (MB-ME64GA/AM) - $23 + some silly $3 thing to get free shipping over $25. There are faster ones out there but I'm a cheapskate and don't use it enough to justify it.
Click to expand...
Click to collapse
That's most of it - then it goes verbose and wobbly.
I welcome any and all comments about SDcards!
There is no OT here but remember the XDA rules and try to be nice to folks. You can learn without trying to control others' behaviour.
No need to pretend you are TD. (allusion to Alice in Wonderland - Top Doormouse)
Thanks for creating this thread. There are surprisingly few other recent threads that discuss this topic on XDA apart from the one I've previously linked to (https://forum.xda-developers.com/android/help/micro-sd-write-access-format-exfat-t3358275). Also, I'm bringing over the well informed SD related comments that you left behind.
---------------------------
I've got to push back on the apriori assumption that these are specifically Sandisk brand card issues without knowing the specific details of the issues and seeing actual logs, and also without knowing the history of the individual cards in question (details of every device it was connected to and how it was connected, what OS and what file management methods were used, and how full the card typically is, and how frequently it might be disconnected in the middle of a file operations, among other things).
We must be mindful of the fact that the majority of SD cards in circulation are Sandisk cards which means that the majority of reported problems will be on Sandisk cards but this does not mean that the Sandisk cards are experiencing proportionately more issues than other brands. I don't doubt individual experiences, but it they may not speak to a larger picture. For example: Having supported large systems (>300 devices) running Linux directly from SD cards I did not see more problems with Sandisk cards than others. We've not seen enough evidence here to declare that this this is a Sandisk problem.
rb1979 said:
...I had this card for a year with no issues, first under stock rom, then under CM, and now under LineageOS up until the latest update with no issues at all.So it's just hard for me to take the card as the problem
Click to expand...
Click to collapse
The fact that a card has been used for a long time under different circumstances does not support a logical argument that the problem is in the ROM, in fact that supports the logical argument that the problem is with the card.
adityak1303 said:
....if you really think that your card isn't faulty, then try using it in some other phone. If you face the same errors then your card is faulty. If it works fine on the other phone, only then can it be considered as a problem with the ROM.
Click to expand...
Click to collapse
Good advise since, if the cards is having problems it should bring the problems to the other devices. Testing a different card in the first device on which the problem was noticed is also a good test.
--------------------------
Here is some supplemental information specific to Sandisk SD cards' built in data protection on cards experiencing failure. https://forum.xda-developers.com/android/help/micro-sd-write-access-format-exfat-t3358275. To summarize what is there: An SD card may begin to fail unknown to us, and then when the built in data protection is invoked it "breaks" the card with a dirty bit at beginning of drive so it cannot be written to or formatted but still allows us to copy data. The symoptoms when that data protection is invoked are similar to those bing reported by people who can no longer mount the card in Android devices (Android devices require read and write access to mount the card, unlike when the card is access via card reader on computer).
Just an update. I tried to format the card as portable storage (after this failure as internal and being burned I have hard time trusting it now) but it fails. I didn't do any testing with other phones just went straight for format. I might just buy another card. I think the phone specs say it's 32 GB max, is it still the case with different OS or not (meaning it was due to software not hardware) if I could get something higher than 32 (the current broken one is 32) I would go for it.
Thanks
rb1979 said:
Just an update. I tried to format the card as portable storage (after this failure as internal and being burned I have hard time trusting it now) but it fails. I didn't do any testing with other phones just went straight for format. I might just buy another card. I think the phone specs say it's 32 GB max, is it still the case with different OS or not (meaning it was due to software not hardware) if I could get something higher than 32 (the current broken one is 32) I would go for it.
Thanks
Click to expand...
Click to collapse
I believe after you use it as internal, and then try to use it as external, you first have to write an MBR on it and a partition formatted FAT32. i use a bootable stand-alone GPARTED to do that.
http://gparted.org/
Moto says it's limit is 32GB. Folks have, I believe, used much bigger cards on it. Don't know what is the limiting factor - be it software (ROM) , hardware, or licensing (exfat for Microsoft). I have ordered a 64GB Sammy which I should get in 1/2 week so I can test. Course I wouldn't be doing exactly what you would be doing so the test would only show that the G3 could read/write to it. I will only use it as external storage. I don't really "need" 64GB but it will allow me to be a bit more sloppy vis a vis nandroid backups.
It could be that after you format yours, that it will suddenly work just fine. Then again I just had a thumb drive go belly-up from I/O errors - once in a great while, it happens.
KrisM22 said:
... Moto says it's limit is 32GB. Folks have, I believe, used much bigger cards on it. Don't know what is the limiting factor .
Click to expand...
Click to collapse
I've got a 128gb in my Moto G (3rd - XT1540 2GB), and I have used the card for a long time. It works just fine for me, and the space is obviously fantastic to have. Every now and then (every few months or so, I'd say - maybe 3 times in the 18 months I've had it), it does become corrupted, though, and I get those same error messages. A backup, wipe/re-format, and restore, and I put it right back in my phone and it works just fine again. Seems like that's happened in other devices, though, too.
The card is a SanDisk Ultra SL128 (Class 10/UHS-1, man'd Jan 2016). I've only ever used it for external storage, never adopted, and I've only ever formatted the card as FAT32, using my PC. I'm running stock Android 6.0 24.24.1 at the moment, with TWRP.
beachfl said:
I've got a 128gb in my Moto G (3rd - XT1540 2GB), and I have used the card for a long time. It works just fine for me, and the space is obviously fantastic to have. Every now and then (every few months or so, I'd say - maybe 3 times in the 18 months I've had it), it does become corrupted, though, and I get those same error messages. A backup, wipe/re-format, and restore, and I put it right back in my phone and it works just fine again. Seems like that's happened in other devices, though, too.
The card is a SanDisk Ultra SL128 (Class 10/UHS-1, man'd Jan 2016). I've only ever used it for external storage, never adopted, and I've only ever formatted the card as FAT32, using my PC. I'm running stock Android 6.0 24.24.1 at the moment, with TWRP.
Click to expand...
Click to collapse
Thanks - Becoming corrupted every 6 months seems excessive, but with heavy use...? So what do you use it for? Also it sounds like you are using something other than the phone to format it...?
At least you are ready for it and just re-format it!
beachfl said:
I've got a 128gb in my Moto G (3rd - XT1540 2GB), and I have used the card for a long time. It works just fine for me, and the space is obviously fantastic to have. Every now and then (every few months or so, I'd say - maybe 3 times in the 18 months I've had it), it does become corrupted, though, and I get those same error messages. A backup, wipe/re-format, and restore, and I put it right back in my phone and it works just fine again. Seems like that's happened in other devices, though, too.
The card is a SanDisk Ultra SL128 (Class 10/UHS-1, man'd Jan 2016). I've only ever used it for external storage, never adopted, and I've only ever formatted the card as FAT32, using my PC. I'm running stock Android 6.0 24.24.1 at the moment, with TWRP.
Click to expand...
Click to collapse
That may not be drive corruption but rather a corrupted file or files. If it is localize drive corruption it may still be there without having any impact until some data is written to that part of the drive. Unlike platter based hard drives, when these drives actually start to fail they may invoke a built in data protection (dirty bit) which resembles being locked in read only mode preventing the drive from being formatted which is obviously not your case. Have you ever done a sector scan of the drive, eg chkdsk <driveletter> /f /r or done a full format (as opposed to quick format)? Either of those things may flush out localized damage and the scan might fix it but they would take a long time.
KrisM22 said:
Thanks - Becoming corrupted every 6 months seems excessive, but with heavy use...? So what do you use it for? Also it sounds like you are using something other than the phone to format it...?
At least you are ready for it and just re-format it!
Click to expand...
Click to collapse
Yeah I guess it is kinda a small PITA lol. Could just be from me starting and cancelling or moving too many things at once, I don't know.
I've never actually come close to needing all that space to TBH. I could probably do just fine with a 64, but it's nice to know I could record or store hours of HD video, for example, if I need it. I got nearly 30 gigs of music on it. I keep tv and movies on there, too, in case I get caught bored somewhere. Full Nandroid and Titanium backups are on there, as well.
I use a microSD adapter and a small (76 kb) utility for Windows called FAT32Format (Ridgecorp).
---------- Post added at 22:00 ---------- Previous post was at 21:45 ----------
IronTechmonkey said:
That may not be drive corruption but rather a corrupted file or files. If it is localize drive corruption it may still be there without having any impact until some data is written to that part of the drive. Unlike platter based hard drives, when these drives actually start to fail they may invoke a built in data protection (dirty bit) which resembles being locked in read only mode preventing the drive from being formatted which is obviously not your case. Have you ever done a sector scan of the drive, eg chkdsk <driveletter> /f /r or done a full format (as opposed to quick format)? Either of those things may flush out localized damage and the scan might fix it but they would take a long time.
Click to expand...
Click to collapse
I've had that problem before, too, but not on the 128 I have in my phone now. That is very frustrating. One of my 32 gb cards suddenly went into "read-only" mode as you describe, and nothing I can do will get it useable again. All the files are still readable from it (except the part of one huge video file that is on the bad sector that seems to have caused the problem).
So right, my 128 card doesn't have that problem, and seems to be corrupted files, as you say, not the drive itself. I do actually do what you talk about - when I do find I have to re-do the 128 sd card in my phone, I run a Windows chkdsk /r before I re-format it, and a chkdsk /f afterward, as a check. The chkdsk /r does take quite a while, yeah .. a few hours.
Cheers
beachfl said:
Yeah I guess it is kinda a small PITA lol. Could just be from me starting and cancelling or moving too many things at once, I don't know.
I've never actually come close to needing all that space to TBH. I could probably do just fine with a 64, but it's nice to know I could record or store hours of HD video, for example, if I need it. I got nearly 30 gigs of music on it. I keep tv and movies on there, too, in case I get caught bored somewhere. Full Nandroid and Titanium backups are on there, as well.
I use a microSD adapter and a small (76 kb) utility for Windows called FAT32Format (Ridgecorp).
---------- Post added at 22:00 ---------- Previous post was at 21:45 ----------
I've had that problem before, too, but not on the 128 I have in my phone now. That is very frustrating. One of my 32 gb cards suddenly went into "read-only" mode as you describe, and nothing I can do will get it useable again. All the files are still readable from it (except the part of one huge video file that is on the bad sector that seems to have caused the problem).
So right, my 128 card doesn't have that problem, and seems to be corrupted files, as you say, not the drive itself. I do actually do what you talk about - when I do find I have to re-do the 128 sd card in my phone, I run a Windows chkdsk /r before I re-format it, and a chkdsk /f afterward, as a check. The chkdsk /r does take quite a while, yeah .. a few hours.
Cheers
Click to expand...
Click to collapse
Great that you're running chkdsk on it. May be caused if you cancel or something happens in the middle of a move. Only other thing I could suggest is to do your format on the phone itself, after you've done everything else on the PC. Don't know if that would make a difference. Shouldn't but I've run across vy experienced folks saying to do that. But... Yeah you've got me hankering to put a 128GB on it...
edit: for read only cards before you trash them I would run them by gparted just to see if re-creating the MBR and partition would change its mind. I have successfully done that with thumb drives but not with cards/adapter/reader.
KrisM22 said:
Great that you're running chkdsk on it..
edit: for read only cards before you trash them I would run them by gparted just to see if re-creating the MBR and partition would change its mind. I have successfully done that with thumb drives but not with cards/adapter/reader.
Click to expand...
Click to collapse
Yeah, thanks for reminding me about fixing the errors, IronTechmonkey. It's kinda an important step I forgot to mention.
I not sure I have the bad card still. I didn't think about GParted, should have. I tried Paragon, among other things, but to no avail.
What speeds are folks getting from a U3 SDE card? I bought what I thought was a 100/60MB/s card and it does about what my old PNY card did - R=40-50, W=34-40MB/s. Is the phone the limiting factor or did I get a bum card?
KrisM22 said:
What speeds are folks getting from a U3 SDE card? I bought what I thought was a 100/60MB/s card and it does about what my old PNY card did - R=40-50, W=34-40MB/s. Is the phone the limiting factor or did I get a bum card?
Click to expand...
Click to collapse
AFAIK the the phone hardware/OS is unlikely to meet the advertised speeds of the cards. Likewise and perhaps more so for USB 2.0 ports and anything using MTP.
I dont know how this compares but for what it is worth: With a Sandisk Utra SDHC (Class 10 - Video, Ultra High Speed Class 1 - whatever that jargon means) touting 80 MB/s read speeds and 40 MB/s* write speeds; the read speeds did consistently approach the rating (getting hot enough to scorch the logo) and the wite speed occasional did. Another factor is the size of files being copied, larger quantities of smaller files taking more time per MB, unless using some dedicated test utility I've never actually done a test of SD r/w speeds on the device. What are you using to measure those?
* In re write speed ratings: Digging into the small print of the specifications may reveal that the manufacturer uses different size cards each for the reed and write speed ratings, effectively padding the write speeds by citing test results from smaller capacity cards.
IronTechmonkey said:
AFAIK the the phone hardware/OS is unlikely to meet the advertised speeds of the cards. Likewise and perhaps more so for USB 2.0 ports and anything using MTP.
I dont know how this compares but for what it is worth: With a Sandisk Utra SDHC (Class 10 - Video, Ultra High Speed Class 1 - whatever that jargon means) touting 80 MB/s read speeds and 40 MB/s* write speeds; the read speeds did consistently approach the rating (getting hot enough to scorch the logo) and the wite speed occasional did. Another factor is the size of files being copied, larger quantities of smaller files taking more time per MB, unless using some dedicated test utility I've never actually done a test of SD r/w speeds on the device. What are you using to measure those?
* In re write speed ratings: Digging into the small print of the specifications may reveal that the manufacture uses different size cards each for the reed and write speed ratings, effectively padding the write speeds by citing test results from smaller capacity cards.
Click to expand...
Click to collapse
Thanks.
Interesting - so you were testing it on windows (?) I did test them on linux and got W=74 on the PNY and 77MBs on the Samsung. That's through a USB3 cardreader.
On the phone I used A1 SD Bench, SD card test, and disk speed test.
Off to try windows...
I was just going to boot up a WinPE and test it there. What prog did you use to test it?
Yes, both of these cards test at about R=81 , W=66.
KrisM22 said:
Thanks.
Interesting - so you were testing it on windows (?) I did test them on linux and got W=74 on the PNY and 77MBs on the Samsung. That's through a USB3 cardreader.
On the phone I used A1 SD Bench, SD card test, and disk speed test.
Off to try windows...
I was just going to boot up a WinPE and test it there. What prog did you use to test it?
Click to expand...
Click to collapse
Yes, Windows 7, which reports file data transfer speeds in the copy process window so I did not use a utility. I've done this enough times in geneal, and a few times specifically with large files and a stopwatch, so I know the speed in the file copy window is relatively accurate (for single large files). The speeds you get on linux seem reasonable. I'll test A1 SD Bench on Osprey when I have a chance. Thanks.
---------- Post added at 11:09 PM ---------- Previous post was at 11:08 PM ----------
KrisM22 said:
Yes, both of these cards test at about R=81 , W=66.
Click to expand...
Click to collapse
Also seemingly reasonable.
My card seem to be working just fine on my Lineage OS. I rebooted by device and now it says it's corrupted. Is there any way out? Will I be able to get my data back?
jay.bhadra1995 said:
My card seem to be working just fine on my Lineage OS. I rebooted by device and now it says it's corrupted. Is there any way out? Will I be able to get my data back?
Click to expand...
Click to collapse
My suggestion would be to copy whatever you can off it and re-format it asap. If you can't read it via phone, try PC.
EDIT: I am assuming you are using it as external. If you are using it as internal, I believe you have lost everything. I know of nothing that can read it. GPARTED can only re-add an MBR and a partition and make it usable again, but all data is lost.
KrisM22 said:
My suggestion would be to copy whatever you can off it and re-format it asap. If you can't read it via phone, try PC.
EDIT: I am assuming you are using it as external. If you are using it as internal, I believe you have lost everything. I know of nothing that can read it. GPARTED can only re-add an MBR and a partition and make it usable again, but all data is lost.
Click to expand...
Click to collapse
Yeah. I copied everything and made a backup. Luckily I use it only as a storage device and not an internal drive for apps. But how do I re-format it? I tried using the format option that my phone gives me but to no avail.
jay.bhadra1995 said:
Yeah. I copied everything and made a backup. Luckily I use it only as a storage device and not an internal drive for apps. But how do I re-format it? I tried using the format option that my phone gives me but to no avail.
Click to expand...
Click to collapse
Do you have a little card reader so you can plug it into your PC?
KrisM22 said:
Do you have a little card reader so you can plug it into your PC?
Click to expand...
Click to collapse
No. Sadly I don't. Is there no other way round to format it?

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