Database Develop

*Good* Class 6 MicroSD cards

Hey guys,
I've been having a great deal of trouble with my cheap Transcend 8gb class 6 card . . . spontaneous unmounts, lots of finicky behavior all around. Having the apps on the SD means the phone crashes, and the app permissions get borked to hell.
I've heard these are not very good cards (you get what you pay for in this case) and are known to have problems with the G1 . . . or the G1 is known to have problems with them. Either way, perhaps some of you can help me:
-Are the Transcends indeed "problem cards?"
-Has anyone had one, gotten fed up with the crashing, replaced it, and is in good working order?
-If that's the case, what are some known good cards I can get to replace it?
Thanks!

they are not problematic, they are just not compatible enough! Every device has issues with every other sd card no matter what. I been buying sd cards and I have had problems with these since the day they were born.
In my opinion, transcend are one of the more compatible sd cards. Funny thing is I use a sandisk on my phone and I always had issues with sandisks before on other devices.

First things first, Transcend are by no means a 'cheap brand'. They actually make some of the more expensive memory cards you can buy, and they are very good. My memory card is a Transcend, an 8GB Class 6 like yours.
The difference is that my one has never failed me. It's actually very fast. Furthermore, Transcend are known for making good memory cards. Maybe you just got unlucky with your one.

I ordered the A-Data class 6 to replace my class 4 sandisk based off raving reviews. I havent read much for negative reviews on the A-Data lineup, even though they are a smaller company

I had a transcend 8gb class 6 card that failed completely (can't even access from a PC). When it failed, and due to my apps to sc and other changes, my phone wouldn't boot without a card. I had to install the 128 mb card once I got home and re-update from scratch. When the transcend card worked, it was fast. I've used other cards of theirs in my cameras for a while now, and they've been very good. But this failure caused a bit of a headache for me. I'm at the point where if I see any problems with my sd card, I'll simply replace it to avoid worse problems. Wouldn't have helped in this case as I saw no signs before hand. If it means much, I'd try another transcend card again.

Sorry, didn't mean to bash Transcend undeservedly. So maybe it's just an issue particular to their cards and the G1?

Thread moved to Dream Q&A, please post in the correct place; not dev related.

i went through 2 4gb class 6 adata cards that wouldn't work at all after i partitioned them. phone would bootloop regardless of rom. it worked great if i left all fat32....very strange.

orange that should be a good card. if you have any way to put it into your computer and try to format it, via a usb conector ect. then give that a go. other wise it could be the rom your on, what type of rom are you using or is it stock?

Don't base your purchase decision on the Class classification. Sandisk's Class 2 cards have known to have stellar performances under ATTO.
See this thread... http://forum.xda-developers.com/showthread.php?p=5170215

pr0cl1v1ty said:
orange that should be a good card. if you have any way to put it into your computer and try to format it, via a usb conector ect. then give that a go. other wise it could be the rom your on, what type of rom are you using or is it stock?
Click to expand...
Click to collapse
Cyanogen Mod. Latest (4.2.12.2) but I've had this problem in previous versions. A friend's G1 has experienced similar problems with the same Transcend 8gb card, and I vaguely recall hearing warnings against using that brand w/ the G1, but perhaps I'm mistaken.
For now, I've deleted the EXT and swap partitions from the card and did a wipe so that all apps are running from internal memory. I haven't noticed any unmounts today, but last night the phone was unusable and this same sort of thing has happened before with the same card in both my original G1, and the warranty replacement (the warranty replacement was for an unrelated issue).

[SD Memory Card] - What is the difference?

Hello xda-users,
I would like to buy a microSD card for my HTC Tattoo,
although i noticed in the market that there are maaaaaaany
microSD cards available without any differences.. (except the capacity)
What i noticed and i was curious about is that when
i tried to bought a microSD from a store here in my neighbour
i looked that a microSD 4GB costs about 15 $ and a microSD 4GB [ULTRA]
costs about 25 $ so i wondered what the difference could it be?
I searched the web [yep, google is my best pal] and i saw that there
were only differences in the data writing/reading speed, and not so
dramatically changes.. just a lil bit. They 've told me that if i wanted
the microSD for my mobile i souldn't get the ULTRA one, but if i wanted
for my camera i should.
So.. what my question is.. If i choose the ULTRA one, will my mobile be "faster" ?
EDIT: i forgot to tell you that i use my mobile mainly as music player
and surfing the web [not for camera usage]
All your opinions are accepted.
Friendly,
Menios

SPEED
I think you shout get the normal one its only necessary if you use it to copy and past many files. i don't think that it give you more speed in your mobile
(sorry for my bad english

ariewtf said:
I think you shout get the normal one its only necessary if you use it to copy and past many files. i don't think that it give you more speed in your mobile
(sorry for my bad english
Click to expand...
Click to collapse
your english is just fine m8.
Thanks for your advice

I would say - get normal one!
Its 15$ and 25$, difference is almoust twice!
Ok, if u got planty of money, you can take the ultra, I dont know what are actully difference in speed, but mostly u would be using "reading" speed, and when u open ur music player, it reads music files, indexes them etc. It would be slightly faster at reading, but I dont think the difference would be 10$ worth
Post the speeds for boath, if u found them.
Id take ultra if it would be 18$ compared to 15$ normal
P.S. 4GB only? I got 8GB, and Im feeling that I might be to short later I might want to put some movie or something in it
P.P.S. as it would be for camera - you would want all the speed, as when u take pic, u want it to be writen in memory as fast as possible to take another shot, so it might be reason why it would be better for cameras.

Stiflerlv said:
P.S. 4GB only? I got 8GB, and Im feeling that I might be to short later I might want to put some movie or something in it
P.P.S. as it would be for camera - you would want all the speed, as when u take pic, u want it to be writen in memory as fast as possible to take another shot, so it might be reason why it would be better for cameras.
Click to expand...
Click to collapse
Hahaha, thank you for your advice, but as it's the double price, i'll pay 20 $ to take a 16 gb one
Thanks again my friend

20$ to take 16GB ONE? WTF???
I payd... let me count, 18Lats, which is 1Lat=2$, so 36$ for my 8GB one
Ofc I could buy in e-bay, but then I should w8 for a month for it to come... didnt want to wait, so ****s in my country cost alot...
Anyway, no problem

Stiflerlv said:
20$ to take 16GB ONE? WTF???
I payd... let me count, 18Lats, which is 1Lat=2$, so 36$ for my 8GB one
Ofc I could buy in e-bay, but then I should w8 for a month for it to come... didnt want to wait, so ****s in my country cost alot...
Anyway, no problem
Click to expand...
Click to collapse
haha, yeap i think it's a bit expensive in your country

djhancks said:
haha, yeap i think it's a bit expensive in your country
Click to expand...
Click to collapse
It's almost the same in my country, 8gb card costs 80Litas, 1$ is about 2.5Litas so it's 32$

Also expensive. But it's the magasine cheap not my country
Sent from my HTC Tattoo using the XDA mobile application powered by Tapatalk

djhancks said:
Hahaha, thank you for your advice, but as it's the double price, i'll pay 20 $ to take a 16 gb one
Thanks again my friend
Click to expand...
Click to collapse
Does your 16GB card work in you Tattoo.
I´ve try two 16GB card and no one of this work in my Tattoo.
They works for a while then I get a message that it´s some error with the card and need to format the card.
The cards works fine in my daugthers Huawei phone so it´s not any wrong with the card exept that it´s not working in my Tattoo

the diference is only in the speed. Usually, these types of cards (ultra) are used in video recorder cams, that need an high rec speed.
So, u should by a normal one
sorry about my bad english

So, which one did u buy? Just wondering...

Today I bought sdhc (what difference sd and sdhc?) 16gb card, and it works fine, But before...
I had 8gb card sdhc and it woks fine until yesterday... Tattoo was running on Froyo, then suddenly hangs on, pulling out battery, starting again... and card is unreadable, my photocam says that it locked(adapter isn't locked), Tattoo don't see it... What the problems with it, does any one know?
Sent from my HTC Tattoo using XDA Premium App

Not sure about the ULTRA label, but when i bought i looked at the class of the micro SD card.
Class 2: minimum sustained Data Transfer Speed of 2MB/sec
Class 4: minimum sustained Data Transfer Speed of 4MB/sec
Class 6: minimum sustained Data Transfer Speed of 6MB/sec
Just clarify:
SD cards can not be bigger than 2GB and are slower compared to SDHC which stands for Secure Digital High Capacity.
Having a large capacity and high transfer speed when using apps2sd seemed like a good idea.
I'm not completely sure, how big is the affect how having faster card, but to be on the safe side I went for Transcend 8 GB Class 6 microSDHC.
£10 from UK ebay.
edit:
1Rus1Fantom said:
Today I bought sdhc (what difference sd and sdhc?) 16gb card, and it works fine, But before...
I had 8gb card sdhc and it woks fine until yesterday... Tattoo was running on Froyo, then suddenly hangs on, pulling out battery, starting again... and card is unreadable, my photocam says that it locked(adapter isn't locked), Tattoo don't see it... What the problems with it, does any one know?
Click to expand...
Click to collapse
if this is issue or somehow related
http://forum.xda-developers.com/showthread.php?t=367912

[Q] 32gb micro sd freezes phone once inserted

Its been a week since Ive been desperately searching with no luck!!!!!!!
I just baought a kingston 32gb class 6 micro sdhc but when ever i put it in my hd2 it just freezes up and as soon as I remove the card it works fine again.At first i though that it was a fake so I:
1)performed multiple tests,
2)reformated a 1000 times,
3)even putting 20gb of data just to make sure.
Turns out that it is authentic and it works perfectly on my girlfriend's htc BalckStone it also worked when I installed NAND (which i later removed due to insufficient memory).Ive been searching for weeks, I think its a windows mobile issue, any tips??

HD2 freezing with microsd
I have the exact same problem.
HD2 + 32Gb Kingston micro SD card (bought from ebay)
Freezes on card insertion. Unfreezes when card is removed.
Found any solution?

Do a google search for SD Formatter.
Try reformatting using that program.
Also, when you're reformatting, don't use the phone, use an external card reader or adapter.

andyffoo said:
I have the exact same problem.
HD2 + 32Gb Kingston micro SD card (bought from ebay)
Freezes on card insertion. Unfreezes when card is removed.
Found any solution?
Click to expand...
Click to collapse
If you ahve bought a 32GB SD card from ebay there is a very high probability that you have bought a FAKE 32 gb card.
If it was cheap its 100% a fake card.
These fake card are actually 1/2/4/8/16GB card but have been modded to report 32GB, some of them you can use but data will get corrupted as soon as you get near the real capacity. Some will just not work from the offset.
Stick your card into your pc via reader/adapter and run it through a drive scanning software and see if its got any bad sectors you will soon know if its fake or not.

The same issue with my 16gb microsdhc. On my friends Samsung Galaxy S it works, on microsd carder it works. But not on my HD2.

I had scanned my microsd with few scanners all of them shown that my SD is in perfect condition.
What about formating? What program should I use? And what formating options should be(file system and etc.)

Wolf741 said:
I had scanned my microsd with few scanners all of them shown that my SD is in perfect condition.
What about formating? What program should I use? And what formating options should be(file system and etc.)
Click to expand...
Click to collapse
Fat32, 32KB Cluster, Quick is fine usually but do a normal format to test your card

I red somewhere says that HD2 are compatible with 32GB SDHC class 2 only..

Same problem here…..
Is there any hot fix for the HTC HD2 to solve this problem?
The card is Kingston 32g class 4.

fransba said:
Same problem here…..
Is there any hot fix for the HTC HD2 to solve this problem?
The card is Kingston 32g class 4.
Click to expand...
Click to collapse
My Kingston 32gb class 4 has been working great for the past 5 months....

Jamaloogy said:
I red somewhere says that HD2 are compatible with 32GB SDHC class 2 only..
Click to expand...
Click to collapse
Not true at all.

fransba said:
Same problem here…..
Is there any hot fix for the HTC HD2 to solve this problem?
The card is Kingston 32g class 4.
Click to expand...
Click to collapse
This is an issue that has yet to be solved, unfortunately I cant get any real answer even after searching for weeks. My only solution now is just to buy a 16gb and use the 32gb for some other occasion.

apallohadas said:
Not true at all.
Click to expand...
Click to collapse
Oh, yes it is. At least mostly true, if not even absolutely true.
I've been using a class 2 32 GB Sandisk micro SDHC card for a year now on my HD, and it will go into my Leo as soon as I get it. Absolutely no problem at all, of course.
It's also the one to use on the HD7 to get the maximum available storage memory.
It was quite expensive when I bought it, but it never bothered me, neither did the Sandisk Compact Flash cards I'm using with my goo old Canon EOS 350D camera.
Some Kingston memory card seem to have compatibility issues with some devices (I'm thinking about EeePCs, too, as it's a very frequently reported problem), but it may be essentially related to higher speeds, as those cards drain too much current. The symptoms are exactly the same : the device will sometimes boot when mains powered, but will crash as soon as you disconnect the mains plug, and won't boot at all from battery power.
The HD2 (and HD7, as it's exactly the same hardware) is known for not loving too much current consuming memory cards, so you'd be wise to stick to class 2 only, as it's supposed to be what HTC recommends.
If you still want to use class 4 or 6 cards... Then don't complain if it doesn't work.

And no, it is not "absolutely true". While the HD2 may not r/w any faster no matter the card, any class will work just fine.
Sent from my HTC HD2 using XDA App

What did you do to get it working then?

jeffro217 said:
What did you do to get it working then?
Click to expand...
Click to collapse
Easy. I always first format my cards using a card adapter and a windows machine.
I know for a fact that class 6 microsdhc 32GBs work. It's what I have in my phone now. I also use a 32gb class 2.

I'm using a Kingston card. I've formatted, the computer sees a mass storage device with 30.2 gb available. However it locks the phone up in the boot sequence. Any Ideas?

jeffro217 said:
I'm using a Kingston card. I've formatted, the computer sees a mass storage device with 30.2 gb available. However it locks the phone up in the boot sequence. Any Ideas?
Click to expand...
Click to collapse
What program did you use to format it?
One recommended app, outside of the built-in windows app, is SD Formatter:
http://www.sdcard.org/consumers/formatter_3/
(Link leads to the SD Association, of which I have no affiliation.)
If you have a card adapter, format it there instead of while inside the phone. Good luck

You suggestion is right.
Correctly formatting the card first generally solves most of the problems.
However, most high class micro SDHC cards will probably drain too much current from the phone. You have to find a really serious brand, and a really good one.

I've tried the posted formatting tool. Is there a setting or something I'm missing? After an hour of formatting, nothing, same problem.
I put the card in a 3 year old blackberry curve I had before the HD2, and no problem. I then put an 8gb class 6 card I had in that same blackberry into my HD2 and it worked fine.
I'm trying not to have to return this card because I don't want to wait another week and a half for back shipping etc.. Please give me some hope

[Q] 32Gb external memory card problem (Hot + battery drain)

Hi all,
I have a Sandisk 32Gb micro SD HC (Class 4). <--- not sure if this competible with the NOTE. anyways, the problem I have as below.
Why I am looking problem into my sd card is that since I used my 32Gb card on my NOTE, my note seems getting hot when I use the files inside my card and the battery drain hella fast.
Case 1) I played a rmvb file format movie. Before I run it, my battery was like 90%, after it played like only 30 mins, it dropped to 70%. is it normal?!?! And at the same time, the back of my note is very hot, I believe it's of the memory card,
Case 2) When I move apps to SD, no matter one app or many apps having the same problem. which is my phone will get very hot, then restart itself, after restart, the singal is gone randomly.
Conclusion, is Galaxy NOTE compatible with the SD card I mentioned above?
sorry for my poor English.

wingod513 said:
Hi all,
I have a Sandisk 32Gb micro SD HC (Class 4). <--- not sure if this competible with the NOTE. anyways, the problem I have as below.
Why I am looking problem into my sd card is that since I used my 32Gb card on my NOTE, my note seems getting hot when I use the files inside my card and the battery drain hella fast.
Case 1) I played a rmvb file format movie. Before I run it, my battery was like 90%, after it played like only 30 mins, it dropped to 70%. is it normal?!?! And at the same time, the back of my note is very hot, I believe it's of the memory card,
Case 2) When I move apps to SD, no matter one app or many apps having the same problem. which is my phone will get very hot, then restart itself, after restart, the singal is gone randomly.
Conclusion, is Galaxy NOTE compatible with the SD card I mentioned above?
sorry for my poor English.
Click to expand...
Click to collapse
Well.. It had nothing to do with the memory card.. I'm using the same 32GB scandisk.. I had no issues at all.. Try factory reset or do a full wipe.. If all else fails.. Samsung service center is you best bet.
Sent from my GT-N7000 using Tapatalk 2

infatality said:
Well.. It had nothing to do with the memory card.. I'm using the same 32GB scandisk.. I had no issues at all.. Try factory reset or do a full wipe.. If all else fails.. Samsung service center is you best bet.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
I already did reset factory settings + erase sd card two times. I also brought my Note to Samsung, they gave my NOTE a new secondary motherboard which I donno what it is anyways. I still had the battery drain & hot back cover this morning while watching movies through memory card.

wingod513 said:
I already did reset factory settings + erase sd card two times. I also brought my Note to Samsung, they gave my NOTE a new secondary motherboard which I donno what it is anyways. I still had the battery drain & hot back cover this morning while watching movies through memory card.
Click to expand...
Click to collapse
Then defective memory card maybe? I think that is not normal.
Sent from my GT-N7000 using XDA

What kernel also rmvb might not be supported in codecs for hw accel so it might be eating cpu to run your vid and it will drain a bit of battery.

I donno about kernel thing. My Galaxy Note is still stock 2.3.6 without root. I am using MoboPlayer for rmvb playing. Just did another 30 mins playing, another around 20% battery is gone and the back of my NOTE is hot while playing.

have u tried the card in a other gadget?

jbg1 said:
have u tried the card in a other gadget?
Click to expand...
Click to collapse
No, I didn't. I only has one smartphone atm, my all others were broken. What else I can do?

wingod513 said:
I already did reset factory settings + erase sd card two times. I also brought my Note to Samsung, they gave my NOTE a new secondary motherboard which I donno what it is anyways. I still had the battery drain & hot back cover this morning while watching movies through memory card.
Click to expand...
Click to collapse
Have you tried copying the movie to internal SD, removing the card, and playing the movie from internal memory?
If you still get the same behaviour then its more likely to be your phone heating up generally than anything else.
Mine gets quite warm when I have the WiFi on and am streaming video across my home network. Wifi + CPU/GPU intensive activities = heating, just like on any other device!
Also, try MX Player. Just in case its Mobo that is causing your problems.

emuX said:
Have you tried copying the movie to internal SD, removing the card, and playing the movie from internal memory?
If you still get the same behaviour then its more likely to be your phone heating up generally than anything else.
Mine gets quite warm when I have the WiFi on and am streaming video across my home network. Wifi + CPU/GPU intensive activities = heating, just like on any other device!
Also, try MX Player. Just in case its Mobo that is causing your problems.
Click to expand...
Click to collapse
I will try to copy the movie to my device i/o my card tonight and test.
I had MX Player before but I uninstalled it as it cant play my rmvb files.

about "note getting hot after new sd with tons of files":
this is due to the media server app indexing all your new files!
for example the gallery app creates a thumbnail of every picture on your SD!!!
this is as well the reason for high battery drain and a "hot" feeling (high cpu load while indexing) after a new rom flash...
if this persists over a few days (usually after a few hours the indexing is done) THEN you have a problem!

Class 4 read writes is very slow same as class 2. I switched mine to class 6 and never gets hot or affects battery as fast
checkout the link, theres a sale on class 10 32 gig. not pitching but wanted users to see
EDIT: http://www.adorama.com/IDSSD32GEC10...liate&utm_campaign=Other&utm_source=cj_552179
Sent from my GT-N7000 using XDA

MicroNuts said:
Class 4 read writes is very slow same as class 2. I switched mine to class 6 and never gets hot or affects battery as fast
checkout the link, theres a sale on class 10 32 gig. not pitching but wanted users to see
EDIT: http://www.adorama.com/IDSSD32GEC10...liate&utm_campaign=Other&utm_source=cj_552179
Sent from my GT-N7000 using XDA
Click to expand...
Click to collapse
So, are you saying sd card reading speed slow will cause more battery usage and getting hot?
I got class 4 bcoz it's popular and easier to get. also I was told class 4 is enough for mobile

last night I walked by some computer stores and saw a new SD card (not sure if it new) Sandisk Mobile Ultra 32Gb (Class 6). Well, I donno if this is a good replacement to my current card - Sandisk 32Gb micro SD HC (Class 4).
The Sandisk Mobile Ultra 32Gb (Class 6) is about US$34.00
Should I change? Or just not much worth, and just save the money.

For media class 6 is better. Like photos and music etc. ...
Sent from my GT-N7000 using XDA

wingod513 said:
last night I walked by some computer stores and saw a new SD card (not sure if it new) Sandisk Mobile Ultra 32Gb (Class 6). Well, I donno if this is a good replacement to my current card - Sandisk 32Gb micro SD HC (Class 4).
The Sandisk Mobile Ultra 32Gb (Class 6) is about US$34.00
Should I change? Or just not much worth, and just save the money.
Click to expand...
Click to collapse
Yes if u have the cash.
Sent from my GT-N7000 using XDA

wingod513 said:
last night I walked by some computer stores and saw a new SD card (not sure if it new) Sandisk Mobile Ultra 32Gb (Class 6). Well, I donno if this is a good replacement to my current card - Sandisk 32Gb micro SD HC (Class 4).
The Sandisk Mobile Ultra 32Gb (Class 6) is about US$34.00
Should I change? Or just not much worth, and just save the money.
Click to expand...
Click to collapse
I have the 64gb version of this card running on my note, I got it online from best buy for about $79 us (found it through heads up in galaxy note forums) . It has been an excellent card. I am a big fan of SanDisk they are quality cards and always perform at or better than their advertised specifications.. I'm not sure if it would be worth upgrading from a class 4 32gb to a 6 32gb unless you have another device to re purpose the old card. The performance difference is noticeable and might be worth it for shooting video etc.
Sent from my SAMSUNG-SGH-I717 using xda premium

Give the class 4 to your wife, girlfriend, or little sister.
Hahhhahaha
Sent from my GT-N7000 using XDA

vizographic said:
I have the 64gb version of this card running on my note, I got it online from best buy for about $79 us (found it through heads up in galaxy note forums) . It has been an excellent card. I am a big fan of SanDisk they are quality cards and always perform at or better than their advertised specifications.. I'm not sure if it would be worth upgrading from a class 4 32gb to a 6 32gb unless you have another device to re purpose the old card. The performance difference is noticeable and might be worth it for shooting video etc.
Sent from my SAMSUNG-SGH-I717 using xda premium
Click to expand...
Click to collapse
So, is your 64Gb card Sandisk Mobile Ultra Class 6? It's abit expensive to me. I do have another old phone with 16Gb card already, not worth to replace with my old 32Gb card becoz I don't use thse phone much.
Sigh...Tough choice...

Thanks...
I was starting to panic. I ordered the Samsung 64 GB micro SD card just because I figured Samsung and Samsung would work together. It's been just over a day and my Note 3 was getting extremely hot. I initially thought about it permanently hurting the battery or the heat reeking havoc on my mother board or other internal parts. But it's seems to be cooling down as of this morning. I think the indexing is all done. If it starts again, I'll be looking for you though.
TML1504 said:
about "note getting hot after new sd with tons of files":
this is due to the media server app indexing all your new files!
for example the gallery app creates a thumbnail of every picture on your SD!!!
this is as well the reason for high battery drain and a "hot" feeling (high cpu load while indexing) after a new rom flash...
if this persists over a few days (usually after a few hours the indexing is done) THEN you have a problem!
Click to expand...
Click to collapse

[Q] EXT SD Memory card disconnects and reconnects?

I'm rooted and have the newest update.
I am using a Sandisk 32GB memory card that I used in my Note 3 for the last year with no issues.
Every once in while, the Note 4 shows that the Sandisk card was removed without being unmounted.. and then after 30-60 seconds, remounts itself. It has done this now 3x today. Once while laying on a table untouched and once while I was using the camera to take pictures. I checked and the card is totally seated properly.
One thing I did notice.. when I went to install the newest update with Kies, it told me to unmount the SD card... and I clicked unmount a few times, and it wouldn't unmount.. So I had to shut down the Note and take out the card while it was off.
Has this happened to anyone? Any ideas how to fix this?

Try cleaning the contacts on your card with a pencil eraser.

I've seen that on my old GS3, be very careful, few weeks later I started getting errors on SD card and then SD card no longer worked with complete loss of data. One card I was able to revive after full format, nothing could be done with the second one. I suspected either something wasn't connecting properly inside or some software issue, I also suspect that the card gets corrupted, when unmounting happens during write cycle and if phone updates headers or directory entries when this error happens, that's when you loose the whole card. I never had this happen on my Note3, hate to see this coming back on Note 4.

rcobourn said:
Try cleaning the contacts on your card with a pencil eraser.
Click to expand...
Click to collapse
I just cleaned them now. Hopefully that will fix it
pete4k said:
I've seen that on my old GS3, be very careful, few weeks later I started getting errors on SD card and then SD card no longer worked with complete loss of data. One card I was able to revive after full format, nothing could be done with the second one. I suspected either something wasn't connecting properly inside or some software issue, I also suspect that the card gets corrupted, when unmounting happens during write cycle and if phone updates headers or directory entries when this error happens, that's when you loose the whole card. I never had this happen on my Note3, hate to see this coming back on Note 4.
Click to expand...
Click to collapse
Argh.. that sounds horrible. I will do a full backup of my card tomorrow just in case (Titanium backup, SMS backup, etc). Thanks

Yeah I'm actually getting this too. It would just randomly unmount and remount when the card is being used. I thought ibfixed it by checking for errors but it came back lol. Hope a real fix is found soon.
Ps - was using a 64gb SanDisk on my note 2 for a year no problem.

More than likely, the SD card is going bad. You better backup asap!

These are precisely the signs of the card before it kicks the bucket. I've owned several SanDisk cards and never again will I go with them. As I've mentioned before on these forums SanDisk cards are very weak in its integrity and are no longer of decent quality. The problems you're facing is proof of that.
Go with a Samsung card. The Pro series. It's the best you're going to get. Lexar is good too, but pricey.

Most pro photographers will say SanDisk is the "yugo" of sd cards.

iunlock said:
These are precisely the signs of the card before it kicks the bucket. I've owned several SanDisk cards and never again will I go with them. As I've mentioned before on these forums SanDisk cards are very weak in its integrity and are no longer of decent quality. The problems you're facing is proof of that.
Go with a Samsung card. The Pro series. It's the best you're going to get. Lexar is good too, but pricey.
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My only real question is, why it's happening right as I swap it to the new Note 4? I am very careful with my devices, and i did not even touch the gold connection part. Bummer

I had this problem until I formatted it using the note 4. So I'll wait and see.

Try samsung sd card evo.

WingedCow said:
I had this problem until I formatted it using the note 4. So I'll wait and see.
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Yup, just came back to report this. I was like f it, im just gonna format. After formatting, all issues are now gone. I will report back if it does return.
ps - i did do the test on it afterwards by taking like 30 pictures and browsing them in the gallery. Prior to the format, it would always unmount 100%. Now it browses with no issues.

chard87000 said:
Try samsung sd card evo.
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I bought one and it'll be here Wednesday, my problem came back with my Sandisk ever after format lol.

WingedCow said:
I bought one and it'll be here Wednesday, my problem came back with my Sandisk ever after format lol.
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EvanWasHere said:
I'm rooted and have the newest update.
I am using a Sandisk 32GB memory card that I used in my Note 3 for the last year with no issues.
Every once in while, the Note 4 shows that the Sandisk card was removed without being unmounted.. and then after 30-60 seconds, remounts itself. It has done this now 3x today. Once while laying on a table untouched and once while I was using the camera to take pictures. I checked and the card is totally seated properly.
One thing I did notice.. when I went to install the newest update with Kies, it told me to unmount the SD card... and I clicked unmount a few times, and it wouldn't unmount.. So I had to shut down the Note and take out the card while it was off.
Has this happened to anyone? Any ideas how to fix this?
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pete4k said:
I've seen that on my old GS3, be very careful, few weeks later I started getting errors on SD card and then SD card no longer worked with complete loss of data. One card I was able to revive after full format, nothing could be done with the second one. I suspected either something wasn't connecting properly inside or some software issue, I also suspect that the card gets corrupted, when unmounting happens during write cycle and if phone updates headers or directory entries when this error happens, that's when you loose the whole card. I never had this happen on my Note3, hate to see this coming back on Note 4.
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boodies said:
Yeah I'm actually getting this too. It would just randomly unmount and remount when the card is being used. I thought ibfixed it by checking for errors but it came back lol. Hope a real fix is found soon.
Ps - was using a 64gb SanDisk on my note 2 for a year no problem.
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Don't know if you guys checked out the SD card thread but we mentioned this . For me and some others Samsung devices don't play well with SanDisk cards. I burned through 3 of them on my note 2 with the same issues you guys have. Back up now! Because those cards will die soon. You can Google it Samsung and SanDisk card errors and you will find many many threads. This time around I learned and got a Samsung evo 64gb for about $39 on Amazon. Just a heads up.

naruto.ninjakid said:
Don't know if you guys checked out the SD card thread but we mentioned this . For me and some others Samsung devices don't play well with SanDisk cards. I burned through 3 of them on my note 2 with the same issues you guys have. Back up now! Because those cards will die soon. You can Google it Samsung and SanDisk card errors and you will find many many threads. This time around I learned and got a Samsung evo 64gb for about $39 on Amazon. Just a heads up.
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I read the thread you mentioned, but this same Sandisk SD card worked perfectly fine in my old Note 2, so maybe it's a recent issue of the newer phones. that were released after Note 2. I got a Samsung Pro 64GB for about 10 dollar more on Amazon.

WingedCow said:
I read the thread you mentioned, but this same Sandisk SD card worked perfectly fine in my old Note 2, so maybe it's a recent issue of the newer phones. that were released after Note 2. I got a Samsung Pro 64GB for about 10 dollar more on Amazon.
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It's so weird they work for a while then die. All I know is I'm going to avoid SanDisk cards in Samsung phones at least.

rofl, so my co-worker had gotten a free 32 GB Samsung sd card from samsung with his new S5. I told him lets do a switch with my 64 GB Sandisk Class 10. We tested it to make sure it works fine on his phone and of-course it does. The samsung card is also quite a bit faster than the Sandisk I gave him. We both did a bench. Its a win win in my books lol.

I've had several micro sd cards faulter on me, resulting in unrecoverable data and every one of them were SanDisk. I'm staying away from SanDisk like the Ebola virus!