File transfer extremely slow Z3 - Xperia Z3 Q&A, Help & Troubleshooting

Hi, I recently bought an xperia z3 and also a class 10 micro sd card 32gb.
When I tried to copy some files it takes forever to copy them, also I can notice that file transfer rate goes between 0kb to 3.5mb approx.
I've tried to change transfer mode on USB options from MTP to XXX and there is no change.
My sd card is an: sanDisk 32gb micro sd hc class 10
I have windows 8.1. Also I installed (several times) just in case Sony PC Companion and the drivers that comes with the phone bus nothing.
Some times I got a window saying that the devise is busy and I can not copy some files.
Last thing, I bought it unlocked but when I turn it on it says T-Mobile.
I do not know what else to do, please help ME!

seba240184 said:
Hi, I recently bought an xperia z3 and also a class 10 micro sd card 32gb.
When I tried to copy some files it takes forever to copy them, also I can notice that file transfer rate goes between 0kb to 3.5mb approx.
I've tried to change transfer mode on USB options from MTP to XXX and there is no change.
My sd card is an: sanDisk 32gb micro sd hc class 10
I have windows 8.1. Also I installed (several times) just in case Sony PC Companion and the drivers that comes with the phone bus nothing.
Some times I got a window saying that the devise is busy and I can not copy some files.
Last thing, I bought it unlocked but when I turn it on it says T-Mobile.
I do not know what else to do, please help ME!
Click to expand...
Click to collapse
Did u format the card inside phone...? Try using other card.
I have sandisk ultra 32gb class 10 and it works fine.
Also about ur device its an unlocked device with t- mobile firmware...if u want u can always flash a generic firmare for your region...
And what do u mean by XXX it should be MSC right??mass storage connection..
And u don't need any specific drivers just the common usb drivers...may be ur card is faulty.. Check with other phone as u check other card with ur phone

Same here with Transcend MicroSDHC 32GB Class 10. My card was faulty. Formated it a few times through Windows, without success. Then tried another Class 4 card, no problems at all.

Sorry, XXX was a recordatory to replace with the other USB connection type...
I've already format the sd card over the phone but same result. Maybe fknpwned is right, maybe it's that card (class and brand).
The only thing left to test it is to try another similar sd card. :crying:
unmaskedfalesh said:
Did u format the card inside phone...? Try using other card.
I have sandisk ultra 32gb class 10 and it works fine.
Also about ur device its an unlocked device with t- mobile firmware...if u want u can always flash a generic firmare for your region...
And what do u mean by XXX it should be MSC right??mass storage connection..
And u don't need any specific drivers just the common usb drivers...may be ur card is faulty.. Check with other phone as u check other card with ur phone
Click to expand...
Click to collapse

seba240184 said:
Sorry, XXX was a recordatory to replace with the other USB connection type...
I've already format the sd card over the phone but same result. Maybe fknpwned is right, maybe it's that card (class and brand).
The only thing left to test it is to try another similar sd card. :crying:
Click to expand...
Click to collapse
Your firmware also might be the culprit..since its T-Mobile unlocked firmware anyways i would go more towards card fault..try the other card..

Same problem with my Strontium 466x Nitro 32GB SD card. The problem is not with the card. I tried it using Galaxy S5 and it gives me a transfer rate of about 25-35MBps. But when I use Z3, format it in the phone itself and try to copy stuff, it barely crosses the 6MBps mark. I'm on 23.0.1.A.5.77 firmware. Dumb Z3. How many more issues must I deal with?? Duh!!!

santoshcoolhere said:
Same problem with my Strontium 466x Nitro 32GB SD card. The problem is not with the card. I tried it using Galaxy S5 and it gives me a transfer rate of about 25-35MBps. But when I use Z3, format it in the phone itself and try to copy stuff, it barely crosses the 6MBps mark. I'm on 23.0.1.A.5.77 firmware. Dumb Z3. How many more issues must I deal with?? Duh!!!
Click to expand...
Click to collapse
Z3 doesn't fully support strontium there is already discussion on the 64gb strontium... Most us using sandisk ultra here it works flawlessly...
Also dont forget s5 is an usb 3.0 device so don't compare usb copy speed as it will be faster compared to any usb 2.0 except apple's lighting port..and speed in your case is normal 5-6mbps is okay..fr usb 2.0..

I never use phone software to transfer files from my phone to pc or vice versa. Just open 2 "my computer" pages side by side & drag & drop the desired file. This works just as well for me on the z3 as it did on my symbian phone before. Very similar speed, i am using the same card in both, sandisc class 10

unmaskedfalesh said:
Z3 doesn't fully support strontium there is already discussion on the 64gb strontium... Most us using sandisk ultra here it works flawlessly...
Also dont forget s5 is an usb 3.0 device so don't compare usb copy speed as it will be faster compared to any usb 2.0 except apple's lighting port..and speed in your case is normal 5-6mbps is okay..fr usb 2.0..
Click to expand...
Click to collapse
OK So basically S5 is way better than Z3 in data transfer?? That does suck TBH because Z3 was launched months after the S5
So what should I do if I want to get better transfer rates, say somewhere around the 30s ???
Kindly suggest a 64GB card. Mine is already full.

santoshcoolhere said:
OK So basically S5 is way better than Z3 in data transfer?? That does suck TBH because Z3 was launched months after the S5
So what should I do if I want to get better transfer rates, say somewhere around the 30s ???
Kindly suggest a 64GB card. Mine is already full.
Click to expand...
Click to collapse
Its not when they are released... Its what they use...sammy used usb 3.0 dat flat slot that looks way ugly..imo..
And try sandisk ultra 64 gb class 10 or sandisk ultra 128gb if u wany way more memory

Class 10 means write 10mb/s. And this condition accures only with big files, if you are copying small files write speed can drop to kb/s.
Just because of that i upgraded my 32gb class 10 sd card with 64gb samsung pro read 90, write 80. That was huge improvment. Dont expect too much from regular class 10 sdcards.
Sent from my C6603 using Tapatalk

eryen said:
Class 10 means write 10mb/s. And this condition accures only with big files, if you are copying small files write speed can drop to kb/s.
Just because of that i upgraded my 32gb class 10 sd card with 64gb samsung pro read 90, write 80. That was huge improvment. Dont expect too much from regular class 10 sdcards.
Sent from my C6603 using Tapatalk
Click to expand...
Click to collapse
Not entirely true, it means a guaranteed minimum of 10MB/s transfer rate. So in reality any card faster than 10MB/s read and write.
I used to have the Sandisk Ultra, and was completely unimpressed by the performance ( you get what you pay for)
I have the Sandisk Pro Extreme, and in the phone I get around 40-50MB/s read and write, about twice as fast writing speed as most other microsd cards in phone. Note this is also the exact same speed as the internal memory so the limitation is clearly the interface (pipeline) the phone uses to access the memory.
As mentioned here earlier you will not get much faster than this due to the limitation of bandwidth with the USB 2 interface, if I am serious and want to transfer lots of larger files, I will remove the card and use a UDMA card reader which will give me around 90MB/s write speed

No matter what usb I use the transfer rate remains same!
I thought buying a new usb drive which supports 3.0 function would increase the speed more than 2.0 usb drives. But that didn't happened, no matter what kind of usb drive I use the problem remains the same. When I had this issue I used GS Richcopy 360 to solve it and the transfer speed was quite good. It has multi threaded file transfer ability meaning it can transfer multiple files at a time. Try it, it solved my problem, hope it solves yours too!

Related

Micro SD Problem VOX/S710

i've recently got my hands on a VOX/s710 phone
my last phone before this used micro SD cards, it was a nokia
when i try to put my nokia micro SD into my VOX, it doesnt recognize, but, as soon as i put it on a nokia, other phones like a palm, etc, it recognizes
is there a problem between nokia branded micro SD cards with HTC?
i tried another brand of micro SD and it worked perfectly
any ideas?
cheers
Initially I tried a NOKIA micro SD card with my Vox and it worked fine.
hum, tks for the reply
so no clues at what the problem might be?
guess if i dont resolve this, ill have to buy another micro SD card
May be, you give a try by formatting the card using a card reader from a Windows PC. That might help.
Yes, make a backup and format to FAT32 (also useful if you want to flash from sd card)! Then put your files back on the card and try again!
thanks for the tips
fortunately, i dont have any indispensable information on the microSD card, i didnt use it a lot, since it was a 1G card, and i had a 2G on my older nokia.
i'm going to try and format it and then post the result hopefully it will work
but since i dont have a memory card reader right now, im gonna try and put it on my old nokia, connect it to the pc and try to format it from there, or format it from inside the nokia phone.
ill figure out something
thanks again for the tips
cheers
=========
tks for the tip tryed it right now, and now its working fine
many thanks both of you for the help!
I have 2 GB microsd card installed. Is it possible to install a 4Gb card or more? Who tried? Does it support SDHC?
Funny thing, I've got an answer from htc support, they say 2Gb is the only possible amount supported
Katik said:
I have 2 GB microsd card installed. Is it possible to install a 4Gb card or more? Who tried? Does it support SDHC?
Funny thing, I've got an answer from htc support, they say 2Gb is the only possible amount supported
Click to expand...
Click to collapse
I dont know exactly how to do it search the forum, but i know that there is a thread that says that partion 4gb (using WM5torage that thread tells how to) and then you can use it.
the vox supports SDHC microSD up to 8Gb, found this in www.pocketpc.ch (will post the link l8 when back on my pc).
i'm using a sandisk SDHC 4Gb fat32 formatted, works perfect! i will buy a 8Gb soon and post the results here .
edit: http://www.pocketpc.ch/htc-s710/39075-8-gb-micro-sd-htc-s710-moeglich.html the forum is in german there....
remembered to post this note, after fomarting the sd card, it worked well
just another question though, you guys are talking about 4 and 8 gigs sd cards
doesnt having a much bigger sd card slow down the phone? i've heard of such rumours but never got the chance to tested myself, and since i'm willing to make a sd upgrade i would like to know if its better to stick with a 1 gig or 2 gigs sd card, or i can go ahead and get a 4 or 8 gigs?
cheers
so, finally i bought this fine 8Gb microSDHC from sandisk, and i works just perfect.
artilheiro.mz said:
just another question though, you guys are talking about 4 and 8 gigs sd cards
doesnt having a much bigger sd card slow down the phone? i've heard of such rumours but never got the chance to tested myself, and since i'm willing to make a sd upgrade i would like to know if its better to stick with a 1 gig or 2 gigs sd card, or i can go ahead and get a 4 or 8 gigs?
Click to expand...
Click to collapse
i never tried with a 1 or 2Gb card, so there i cannot say. but on the otherhand i did not remark an diffrence of speed with the 4 or 8Gb card, they're just as fast as usual (in cellular device or in pc with cardreader). the only thing i can say, is that cards from cheap(er) brands are always slower than cards from quality brands (such as sandisk, as example). and also SDHC cards should always be faster than 1 or 2Gb cards, because they have a newer controllers (not 100% sure about this point, i think i might have read that in c't).
i hope i could help a little bit...
Dang, 8GB cards work without driver patching? That is champion. I'll be ordering myself one soon.
Yep, can confirm 8gb card works fine, have had one in mine for some months now...
Now what about 16gb? was that article written before 16's were available even the sandisk site seems to be out of date saying nokias that are supposed to support 16's only support 8?
anyone actually confirmed 16's don't work?
Katik said:
I have 2 GB microsd card installed. Is it possible to install a 4Gb card or more? Who tried? Does it support SDHC?
Funny thing, I've got an answer from htc support, they say 2Gb is the only possible amount supported
Click to expand...
Click to collapse
well, i am using a Sandisk 4GB micro Sd without any problems.
@ zarn:
have a look at General discussion > Accessories > 16 and 32GB MicroSDHC test
JayRayMee.NL said:
16GB will be available in Q4.
32GB somewhere in the first half of next year.
Pricing unknown, but I guess that 16GB will have an intro price of something like € 100,00.
Click to expand...
Click to collapse
i guess we have to wait some time to test it
at work, some weeks ago, i discussed this with a dev. and he meant that from the hardware side it should be no problem, but maybe the driver needs to be updated. i'm not sure, but as i know the driver adds support for sdhc, no matter of the size of the card. he's not a sys dev, he does apps and branding, i'm only test-ex and advanved user, so correct me if i'm wrong (i'm still learning ).
edit: found following on http://www.wisegeek.com/what-are-sdhc-cards.htm
The new 2.00 specification should last a bit longer, as it allows SDHC cards to reach a maximum capacity of 32GB.
Click to expand...
Click to collapse
so i think, if the device supports that specification (and the vox does), it should support cards up to 32Gb.
and again some info about speed:
The SDHC specification 2.00 calls for cards to be classified according to the minimal sustained DTS as follows:
Class 2: minimum sustained DTS of 2MB/sec
Class 4: minimum sustained DTS of 4MB/sec
Class 6: minimum sustained DTS of 6MB/sec
SDHC cards are classified to guarantee a specific sustained DTS. This potentially saves consumers money, as flash cards are priced not only according to capacity, but also to speed. For example, if a product's maximum DTS is 2MB/sec, dishing out extra cash for Class 4 or Class 6 SDHC cards would be a waste of money. Conversely, devices that can utilize the 4MB/sec or 6MB/sec DTR (i guess the author meant DTS, kel187) will perform significantly better with Class 4 or Class 6 SDHC cards, respectively.
Click to expand...
Click to collapse
my 4Gb card is Class 2 and my 8Gb is Class 4. i did not recognized any diffrences in speed advantages, neither on the mobile nor on the pc. so the vox and my cardreader must be class 2 devices, what a pitty ^^

[Q] SD card problems

Hello everyone.
I have this strange things going on with my microSD card.
Recentely i bought 32 GB card for my nexus one (using cyanogen mod 7)
When i use that card on my pc i can write all the files at 5 MB/s speed. Then i put it inside my phone and it doesn't mount. After few tries like 4 or 5 it mounts but after that some files are gone from sd card. Allways leaving like 30 GB of empty space. So if i write more it will delete some so it would be 30 GB. Then it mounts normally.
Ok now more then half of you will say that this is fake card or smth. But i downloaded H2testw program and checked my card. Everything is fine with it. The program wrote 32 GB of data and verified everything. Its just problems with phone reading SD card. Anyone can help me ?
Hmm........
So noone has any ideas ?
Check your phone for firmware updates that might raise it to the 32 gb ceiling. Maybe there is a Cyanogen 7 update that will take care of this for you. Also does your phone support SDHC cards?
SD Card Not reading correctly
If you haven't done so, you might want to check the specs of your device to ensure that it will accept 32GB. Some devices top out at 8 and 16GB respectively.
brownrob73 said:
If you haven't done so, you might want to check the specs of your device to ensure that it will accept 32GB. Some devices top out at 8 and 16GB respectively.
Click to expand...
Click to collapse
That, and I would upgrade to the latest nightly of CM7.
It is probably not "32gb" "Genuine" memory card.
I've purchased the memory card couple months back and
It says "16gb" when I put musics/videos in the memory card, it was unreadable and unplayable. I think it had actual memory of "2gb", so yes, I've been scammed by Chinese people =P.
I recommend you to check your actual memory by using this program
"H2testw"

SanDisk Mobile Ultra 64GB microSDXC works in our Skys

Went out and purchased the SanDisk Mobile Ultra 64GB microSDXC Class 6 Memory Card from BestBuy today .. only $89.99 on sale from $149.99
http://www.bestbuy.com/site/SanDisk...220&skuId=4120116&st=64gb microsdxc&cp=1&lp=1
Using a tool found on SoftPedia called FAT32format .. I was able to format this card ALL fat32 with no issues .. inserted the sdcard in my Skyrocket .. and poof .. the phone recognize the sdcard .. and ALL 59.xxGB that it was formatted to
http://www.softpedia.com/get/System/Hard-Disk-Utils/FAT32format.shtml
LordGeek said:
Went out and purchased the SanDisk Mobile Ultra 64GB microSDXC Class 6 Memory Card from BestBuy today .. only $89.99 on sale from $149.99
http://www.bestbuy.com/site/SanDisk...220&skuId=4120116&st=64gb microsdxc&cp=1&lp=1
Using a tool found on SoftPedia called FAT32format .. I was able to format this card ALL fat32 with no issues .. inserted the sdcard in my Skyrocket .. and poof .. the phone recognize the sdcard .. and ALL 59.xxGB that it was formatted to
http://www.softpedia.com/get/System/Hard-Disk-Utils/FAT32format.shtml
Click to expand...
Click to collapse
Yeah, I was pretty certain it would work. It has worked on every Samsung Galaxy ever made so far. I think BestBuy had it for $70 one time. Still waiting for that deal to come around again. It might take a while...
But then again, 128GB might be better. It would be nice to carry every episode of all my favorite rewatchable TV Shows and all the TV Shows and Movies I plan on watching some day. Might take 2TB. Someday...
Wow crazy space. Let's hope they make batteries in the future to allow us to make use of all this video space
I put the same one in mine, when I saw that deal. Works fine. However as a word of advice from wasting time..........
Many state to use the sdcard.org's formatter which then formats it correctly and then put your data on it and then put it on your phone. However that doesnt work. sdcard.org formats the card as exFat and the phone cant recognize that. Let the phone format it which it will do as Fat32. Then it works fine.
Many threads state to use the sdcard.org formatter to achieve the best speed, thats the reason why I did it. So despite their recommendations, dont bother, it wont work.
On a side note of reivewing it. This 64gb card replaced my Samsung 32gb Class10 card. I have to say to say this 64gb card is REALLY slow when transferring data. It took a good 1hr to transfer 32gb of data on this card. The fatest I got was around 4-6MB/sec. The Samsung 32GB card (being it was class10) was at least twice as fast. But I cant complain too much, I mean its twice the space. Im sure a Class10 version of this 64gb card will cost over $200.
Dixit
Awesome good to hear, didn't think I would hit 32GB but I'm fast approaching, time to upgrade I think.
Like dixit said.... It's always best to format in the device you're going to use it in!
Sent From my Two Tin Cans & String Device on The Wookie Network
dixit said:
I put the same one in mine, when I saw that deal. Works fine. However as a word of advice from wasting time..........
Many state to use the sdcard.org's formatter which then formats it correctly and then put your data on it and then put it on your phone. However that doesnt work. sdcard.org formats the card as exFat and the phone cant recognize that. Let the phone format it which it will do as Fat32. Then it works fine.
Many threads state to use the sdcard.org formatter to achieve the best speed, thats the reason why I did it. So despite their recommendations, dont bother, it wont work.
On a side note of reivewing it. This 64gb card replaced my Samsung 32gb Class10 card. I have to say to say this 64gb card is REALLY slow when transferring data. It took a good 1hr to transfer 32gb of data on this card. The fatest I got was around 4-6MB/sec. The Samsung 32GB card (being it was class10) was at least twice as fast. But I cant complain too much, I mean its twice the space. Im sure a Class10 version of this 64gb card will cost over $200.
Dixit
Click to expand...
Click to collapse
I'm affraid I will have to disagree with you on this. I purchased the card .. it was already formatted with exFAT. When inserted into phone, does not recognize it installed at all .. will not format, will not mount .. nothing.
I'm running Windows 7 Ultimate 64 .. does not format FAT32 unless you're doing it be command line .. however, here is the issue with that .. standard command: format ?: /FS=FAT32 for the 64GB card took 2 hours to format, only to find that it errors out right at the end stating it is not compatible and over 32GB .. waste of time.
Hense .. this is why I attached a link to a command line program called FAT32format .. I executed this program from command prompt .. and poof, 64GB formatted FAT32 .. plugged into phone .. phone recognized the card, no problems at all .. I did however reformat the card via the phone afterwards.
So, for the initial installation (out of box) our phone WILL NOT see it until it has been formatted FAT32
Well mine had no problems reformatting on the phone itself. When I first put it in after the sdcard.org format it was exFat. Phone as you stated didn't recognize it. Then I just on the phone told it to reformat it. It did it just fine as Fat32. But either way like you said as Fat32 it has no problems.
Dixit
The only issue here is that you can't transfer files larger than 4Gb to the card when its FAT32. Something to keep in mind if you have large files.
I bought mine about 6 months ago and haven't hd a problem with it in any android phone and I formatted it in the phone. Now I'm just waiting on this skyrocket hd to come out and I'm selling this phone and buying that one. Has any boy heard any thing about a size bigger than 64gb
Sent from my SAMSUNG-SGH-I727 using xda premium
thanks for the note, it's a great price, but media-scan kills me
I love the space, I don't care about slow speeds because I usually dump data on the card (huge mp3 collection) and keep apps on the internal /sdcard (16GB)
The problem I see with this is that my current 32GB class10 card is being scanned by the phone periodically. This scan takes a LOT of time and 64GB would be even worse
If I find a phone that is equal to or better than Skyrocket + support exFAT I would go for the 64GB card in a heartbeat
Do you know such phone as of today ?
dixit said:
Well mine had no problems reformatting on the phone itself. When I first put it in after the sdcard.org format it was exFat. Phone as you stated didn't recognize it. Then I just on the phone told it to reformat it. It did it just fine as Fat32. But either way like you said as Fat32 it has no problems.
Dixit
Click to expand...
Click to collapse
:thumbup: And that's what I thought!
Sent From my Two Tin Cans & String Device on The Wookie Network
LordGeek said:
Went out and purchased the SanDisk Mobile Ultra 64GB microSDXC Class 6 Memory Card from BestBuy today .. only $89.99 on sale from $149.99
http://www.bestbuy.com/site/SanDisk...220&skuId=4120116&st=64gb microsdxc&cp=1&lp=1
Using a tool found on SoftPedia called FAT32format .. I was able to format this card ALL fat32 with no issues .. inserted the sdcard in my Skyrocket .. and poof .. the phone recognize the sdcard .. and ALL 59.xxGB that it was formatted to
http://www.softpedia.com/get/System/Hard-Disk-Utils/FAT32format.shtml
Click to expand...
Click to collapse
thanks for the tip on FAT32format. my 64GB card showed up yesterday and i was fearing i had wasted money since i couldn't get it formatted to FAT32. i bought it after seeing that YouTube video (we've all probably seen it) to put in my Galaxy S i'm turning into a dedicated PMP. the phone wouldn't format it (would try but it would always say damaged) but this worked like a charm. i'm transferring my music collection as i speak. thanks again for the help!
Browsing this thread and checked out the Best Buy link. Price is $79.99 as I write this.
$71 on Amazon now.
Adorama Camera $59.95 and free shipping if anyone is interested.
^^^^ thanks for the link, i have a few friends looking for this
dorj1234 said:
I love the space, I don't care about slow speeds because I usually dump data on the card (huge mp3 collection) and keep apps on the internal /sdcard (16GB)
The problem I see with this is that my current 32GB class10 card is being scanned by the phone periodically. This scan takes a LOT of time and 64GB would be even worse
If I find a phone that is equal to or better than Skyrocket + support exFAT I would go for the 64GB card in a heartbeat
Do you know such phone as of today ?
Click to expand...
Click to collapse
Just a thought, cuz I haven't noticed anyone say this but from what I've read class 6 and 10 cards are not ideal for mobile phones because they are optimized for faster sequential read/write (ideal and fast for cameras). Class 4 is faster at random read/write than 6 and 10(ideal for phones).
I just purchases a sandisk 32gb class 4 and I've never had it randomly scan and I use it for music, photos, some app data, backups etc.
punksnotdead83 said:
Just a thought, cuz I haven't noticed anyone say this but from what I've read class 6 and 10 cards are not ideal for mobile phones because they are optimized for faster sequential read/write (ideal and fast for cameras). Class 4 is faster at random read/write than 6 and 10(ideal for phones).
I just purchases a sandisk 32gb class 4 and I've never had it randomly scan and I use it for music, photos, some app data, backups etc.
Click to expand...
Click to collapse
this is unfortunately somewhat true. Class 6 in the OP should be okay though. I'm currently in an RMA process with Sandisk and in talking to their Technical support they said :
"We need to take the few information from you in order to process the RMA request. There is an ongoing issue is with Sansa Ultra 64 GB SDXC class 10 Cards the one which you have and on Android phones we need to use the Sansa Ultra 64 GB SDXC class 6 in order to make it functional. It depends on your requirement so please let me know so we can proceed with the request."
LordGeek said:
Went out and purchased the SanDisk Mobile Ultra 64GB microSDXC Class 6 Memory Card from BestBuy today .. only $89.99 on sale from $149.99
http://www.bestbuy.com/site/SanDisk...220&skuId=4120116&st=64gb microsdxc&cp=1&lp=1
Using a tool found on SoftPedia called FAT32format .. I was able to format this card ALL fat32 with no issues .. inserted the sdcard in my Skyrocket .. and poof .. the phone recognize the sdcard .. and ALL 59.xxGB that it was formatted to
http://www.softpedia.com/get/System/Hard-Disk-Utils/FAT32format.shtml
Click to expand...
Click to collapse
THANK YOU! So much, you helped me out of a jam. Found a SanDisk Class 10 online for $64 and was freaking out when my phone wouldn't recognize it but using the FAT32format program through the Command Prompt worked like a charm so my deepest THANKS! :good:

[Q] Micro SD No Faith

I have tried both a 64gb and a 32gb micro sd card and if I try to save or backup my documents on it sooner or later a few weeks down the road my Note Pro 12.2 reports that I have a corrupt card. I never take it out so that is not the cause. I do not have any apps installed on the card. I am not rooted.
All I am trying to do is keep my music, videos, pictures, and a copy of word and excel files on a micro sd card but I have no trust that my micro sd card is going to work.
I have formatted these cards using my Note Pro. I have formatted these cards using my Windows PC. But several weeks down the road I get the corrupt disk error... please reformat!
Is rooting the answer?
Any help is appreciated.
Sounds like a bad card to me. What brand is it?
Sent from my SM-P900 using Tapatalk
This usually happens with low-class or cheap-brand cards.
In general you're best off only using class 10 or above cards by Sandisk or Samsung. Anything else is highly unstable.
I have a San Disk Class 10 64gb but my other card is a PNY Class 6 32gb. I guess I'll look at getting a Samsung? I believe I had read somewhere about this device not liking 64gb cards? Or maybe I read something about it not allowing files to be saved to external storage. Something Samsung was doing.
Anyway thanks for the input. I would like to use a 32gb card as I really don't need 64gb so if my PNY isn't going to work I need to get something that will.
How does this card look?
http://www.amazon.com/Samsung-Elect...3974869&sr=1-2&keywords=samsung+micro+sd+card
If that samsung is as fast as it's rated that looks like a good card.
I'm using the Sandisk Extreme Plus 64gb but have only had it for a month and a half. So far no issues but I wonder if it too will be a time bomb.
muzzy996 said:
If that samsung is as fast as it's rated that looks like a good card.
I'm using the Sandisk Extreme Plus 64gb but have only had it for a month and a half. So far no issues but I wonder if it too will be a time bomb.
Click to expand...
Click to collapse
I ordered it since it was only $27 & I had a $25 gift card.
Mickeylittle said:
I have a San Disk Class 10 64gb but my other card is a PNY Class 6 32gb. I guess I'll look at getting a Samsung? I believe I had read somewhere about this device not liking 64gb cards? Or maybe I read something about it not allowing files to be saved to external storage. Something Samsung was doing.
Anyway thanks for the input. I would like to use a 32gb card as I really don't need 64gb so if my PNY isn't going to work I need to get something that will.
Click to expand...
Click to collapse
There's no issue with 64GB cards. There's no issue with 128GB either. Some of the older devices had issues with SDXC UHS-I cards, but that was over a year ago.
There is, however, an issue with Android KitKat no longer allowing non-stock apps to write to the SD card. That's Google's doing. It has nothing to do with corrupt cards.
Samsung and Sandisk cards are both excellent. Just make sure they're class 10 or higher.
muzzy996 said:
If that samsung is as fast as it's rated that looks like a good card.
I'm using the Sandisk Extreme Plus 64gb but have only had it for a month and a half. So far no issues but I wonder if it too will be a time bomb.
Click to expand...
Click to collapse
ShadowLea said:
There's no issue with 64GB cards. There's no issue with 128GB either. Some of the older devices had issues with SDXC UHS-I cards, but that was over a year ago.
There is, however, an issue with Android KitKat no longer allowing non-stock apps to write to the SD card. That's Google's doing. It has nothing to do with corrupt cards.
Samsung and Sandisk cards are both excellent. Just make sure they're class 10 or higher.
Click to expand...
Click to collapse
What is the best method to copy delete movies to/from my micro SD card? Should I unmount it and remove it or should I power off my tablet and remove it. Or will it be better just to copy them from a USB stick to the card while the card is still in the tablet? I'm hoping to keep 10-15 movies on my card and swap them off to put more on probably every 6 weeks and I want to know which way is the best way not to harm my card.
Mickeylittle said:
What is the best method to copy delete movies to/from my micro SD card? Should I unmount it and remove it or should I power off my tablet and remove it. Or will it be better just to copy them from a USB stick to the card while the card is still in the tablet? I'm hoping to keep 10-15 movies on my card and swap them off to put more on probably every 6 weeks and I want to know which way is the best way not to harm my card.
Click to expand...
Click to collapse
Unmount the SD card through Settings --> General --> Storage --> Unmount SD Card.
Or connect the tablet via USBcable to the PC and copy it onto the SDcard that way. (It loads as a network device in explorer)
I've got 11 films, two shows and a handful of concerts on my MicroSD and swap regularly, I usually use one of these two methods.
For me, I use a MacBook Pro which for some reason does not allow me USB 3.0 connectivity to the tablet (driver issue I'm sure but try as I might I have never gotten it to work). I therefore use a USB 2.0 cable and Kies to copy files to the tablet that way. I'm able to pick the external card as a destination and transfer at USB 2.0 speed.
Sent from my SM-P900 using Tapatalk
Thanks for all the help everyone. Hopefully with the new card coming Wednesday my problem will be solved.
I have and use a 64GB SanDisk Micro SD Card on my P900 and can open, copy, move files from and to the sdcard using samsung's stock file manager (My Files) without any problems.
Sent from my SAMSUNG-SM-N900A using XDA Free mobile app

Micro SD read/write speed

Hi
Can you post your micro sd read/write speeds ?
Only 18mb/s for my SanDisk Extreme PRO 64 Gb U3. It's very slow... It was able to reach 80mb/s on my GS7.
Tested with A1 SD bench app.
Thanks
Seb122 said:
Hi
Can you post your micro sd read/write speeds ?
Only 18mb/s for my SanDisk Extreme PRO 64 Gb U3. It's very slow... It was able to reach 80mb/s on my GS7.
Tested with A1 SD bench app.
Thanks
Click to expand...
Click to collapse
Unfortunately It's a firmware limit
Zazzinho said:
Unfortunately It's a firmware limit
Click to expand...
Click to collapse
A firmware limit ? What is the purpose of limiting sd card speed ? Or maybe it's a hardware limit ??
Also tried with sandisk ultra U3 A1 and it was around 18mb/s. It's crazy slow, I would recommand not to buy expensives SD card for this phone...
Too bad, sd card r/w speed are too slow to use it as system storage.
How a SD845 device can obtain that poor result ??
Seb122 said:
A firmware limit ? What is the purpose of limiting sd card speed ? Or maybe it's a hardware limit ??
Also tried with sandisk ultra U3 A1 and it was around 18mb/s. It's crazy slow, I would recommand not to buy expensives SD card for this phone...
Too bad, sd card r/w speed are too slow to use it as system storage.
How a SD845 device can obtain that poor result ??
Click to expand...
Click to collapse
Cause i've tryed multiple sd card high range and the speed it's always 18 mb/s...anyways i don't think 2018 top hardware can't write more than 18mb/s
As above, my write speed is also 18 Mb/s - it's a Sandisk Ultra 128 U1 card
Hi guys, I'm willing to buy one xz2 compact for me. It seems that both the big and compact have the slow sd speed issues. Could you please confirm if the read speed is also limited to 18Mb/s? Do you think it is a matter of hardware or software? Is encryption enabled? Thanks!
bethnard said:
Hi guys, I'm willing to buy one xz2 compact for me. It seems that both the big and compact have the slow sd speed issues. Could you please confirm if the read speed is also limited to 18Mb/s? Do you think it is a matter of hardware or software? Is encryption enabled? Thanks!
Click to expand...
Click to collapse
My internal storage is encrypted (by Default, cannot change w/o root) .
SD Card is not encrypted & you have the option to encrypt, if you'd like.
My SD Card in not encrypted & it too has the slow read/write speeds. I have Samsung's latest 256 GB Card & while I do not know the rated speeds off hand, I do know it's much more capable than what the hardware is permitting, right in line with what others have posted, about 18mb/sec.
Sent from my Sony H8296 using XDA Labs
I show a 18Mb/s read, 14.41Mb/s write with a Sandisk U1 card, my S8+ hit 66Mb/s read and 14.3Mb/s write with the same brand and type of card.
I tested also with u3 card. Same 18mb.. This one should be reported to sony useless to use fast card if it cannot even give the correct writing for the card..
One strange thing : I tested sd card right after a reboot and it was able to reach 35mb/s r/w speed but few minutes later it dropped to 18mb/s with the same test.
My sd card is not encrypted
Same 18mb/sec speed here with V30 card.
Id say its a firmware issue, im getting a whopping 2.70 MB/s coping from internal Storage to a u3 128GB card
XZ1 vs XZ2, using a Sandisk 200 GB UHS-1 card with default android file system as exFAT tends to slow down speeds quite a lot I've noticed. If I had to guess why the speeds are so low, then it's because the sim and sd-card reader share the same bandwidth (one logic board for both) therefor making it close/less than USB 2.0 speeds. Even my S8/9 are slow since they have the same setup.
Nessaja said:
XZ1 vs XZ2, using a Sandisk 200 GB UHS-1 card with default android file system as exFAT tends to slow down speeds quite a lot I've noticed. If I had to guess why the speeds are so low, then it's because the sim and sd-card reader share the same bandwidth (one logic board for both) therefor making it close/less than USB 2.0 speeds. Even my S8/9 are slow since they have the same setup.
Click to expand...
Click to collapse
I assume the left one (33MB R) is XZ2?
yyiimm said:
I assume the left one (33MB R) is XZ2?
Click to expand...
Click to collapse
Correct.
Well, quick update for everyone. Just flashed my phone with the Android P beta
SD speed on a 128GB Evo+ is now 31.57MB/s read and 28.05MB/s write according to A1 Bench. Not tested the Samsung Pro yet, but the speed restriction was software related (possible due to Oreo formatting as exFat, Android P said the SD was corrupt and formatted it as fat32)
JezJ said:
Well, quick update for everyone. Just flashed my phone with the Android P beta
SD speed on a 128GB Evo+ is now 31.57MB/s read and 28.05MB/s write according to A1 Bench. Not tested the Samsung Pro yet, but the speed restriction was software related (possible due to Oreo formatting as exFat, Android P said the SD was corrupt and formatted it as fat32)
Click to expand...
Click to collapse
would the actual Android P coming out this year you think? for those who dont like to run Beta.
JezJ said:
Well, quick update for everyone. Just flashed my phone with the Android P beta
SD speed on a 128GB Evo+ is now 31.57MB/s read and 28.05MB/s write according to A1 Bench. Not tested the Samsung Pro yet, but the speed restriction was software related (possible due to Oreo formatting as exFat, Android P said the SD was corrupt and formatted it as fat32)
Click to expand...
Click to collapse
I hope it will not delete my data against my wish after the upgrade with the real Sony Android P Upgrade.
Nothing to do with the file system on the SD, went back to 8.0 due to stability issues and tested the SD which it read fine with fat32, back to 18MB/s speeds again. Lets hope they move 'P' along at a decent pace. May go back to the preview at a later date, will keep an eye on the changelogs/issues
Just throwing in a theory. Seeing as previous XZ series has overheating issues, is it possible that Sony played safe with the initial release of the successor XZ2 by limiting the microsd speed so that it doesn't contribute much to the heat of the phone? In the android P beta they probably found that they could increase that limit as they experimented further.

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