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[Q] Class 10 MicroSD Card, problem?

i did a test on Patriot Class 10 32GB Micro SD on my Sensation. everything went quite smooth, for 10 hrs...after that Sensation can't detect the card anymore. Put the card into card reader, PC can't detect card. so all data in the card was gone and the card is now rendered unusable!
tried on a Transcend Class 10 16GB, Sensation couldn't detect the card at all!
put in a Sandisk Class 4 8GB, Sensation immediately detected the card and i'm still happily using the card for 3 days without incident...
in fact, my Asus Transformer had the same issue with a Patriot class 10 32GB card. wiped the data on the card and rendered it useless...
so any info that i should know abt regarding class 10 MicroSD Card?
thx

I have no solution for you..
I can only say that i am using a Transcend Class 10 16GB card
with no problem. Maybe the problem lies within your phone?

but it happens to my HD2, Asus Transformer and my Sensation...
three devices with the same problem?
i really dunno...

If the card couldn't be read by your pc or 3 other phones, that would lead me to believe that your card is bad. Hopefully you bought it from a reputable seller with a solid return policy and you can just try a new one.

Ive had this problem a few times, its usually the card. I was able to detect mine using Micro SD Adapter but i couldnt open it up. I used Paragon Partition Manager (only thing that detected it) did a full wipe (takes a longgg time 5-7 hours) and then reformatted using windows to just a FAT32, then used Clockwork recovery to partition EXT. It worked fine after that, it was my old 8gb card

I've bought a 16GB Class 10 microSD from Patriot. No problems at all. works fine and is very fast.
Your card must be broken...

Does anyone have problems with the 8gb micro sd with 3gb or less free?

Does anyone have problems with the 8gb micro sd with 3gb or less free?

jp23 said:
Does anyone have problems with the 8gb micro sd with 3gb or less free?
Click to expand...
Click to collapse
Like what problem?

Yes. What kind of problems. I have 2GB free and use to have less.

maybe he mean does we hava anything wrong with that case.

my problems are:
i have the original microsd 8gb class 2 when i put some videos, music or pictures and the capacity it's over 5gb, when i restart the phone the "preparing microsd" notification doesnt dissapear and i never take the phone control back except when i release the battery and put it back and change the microsd.
I've bought microsd 8gb class 4 and the same happens.
it's there any solution?
i'm using 4gb class 6 and no problems but i need more space.

Your problem is the SDCArd in general, I was nearly trowing away my XT720, bought an new SD card from ADATA and same problem. My last hope was an new Quality SDcard now with a "Samsung Micro-SDHC 16GB Class 10 - Plus-Serie MB-MPAGA" I have a new phone , no errors, no restarts, didient have to "battary reset" since i have that card.
The investment in a good SDCARD is (IMHO) the best you can do to your phone.

Removable Storage in HTC Mozart

Hi all,
My apologies if this has already been covered but i have a question regarding the removeable but not removeable storage within a HTC Mozart 7.
Ive pulled the phone apart previously a long time ago and had a 16 kingston class 2 Micro SD installed and it caused alot of freezes and crashes and as such i removed it and placed the existing sandisk 8gig class 4 Micro SD card back into my phone, Ive been using this fine for quite a while and the time has come where i either have to remove all my pictures and movies (Back them up of course) in order to keep using the phone as i have run out of space. This isnt something i want to do as i like to have the pictures and movies on the go with me like they should be so i can access them whenever i want. Ive started using skydrive to store my pictures to make room on my phone so i can use it. Anyhow as im getting off topic i`ll get to the point. I purchased a Genuine Sandisk 32gig Class 4 microsd card before the release on mango in the hopes it would work and it subsequently didnt. I therefore email HTC support asking them for a list of what cards are supported and strangly enough they did respond. With this
Here are the brand names of SD card and its storage that are compatible with HTC handsets. We have tested these and we can guarantee its functionality. You may use one of these to your phone. Please see the list below:
BRAND SIZE
ADATA 4GB, 8GB, 16GB
Kingston 4GB, 16GB
PQI 16GB
Pretec 4GB, 8GB
SanDisk 1GB, 2GB, 4GB, 8GB, 16GB
SILICON POWER 4GB, 8GB, 16GB
Transcend 4GB, 8GB, 16GB
As there is no mention of the 32gig card being supported i took it out. im now trying to install a 16gig kingstone class 4 card and when i boot the phone i get the error "Memory card not working". so i thought i`d try the old 16 gig class 4 card and got the same message. Its worked before but i have a feeling that it may not be working now as it was used with the old OS and not with 7.10 so my phone no longer detects it. Anyway does anyone have any ideas on how i can get the 16 gig or 32gig class 4 cards to work with my phone? Do i maybe need to jailbreak it to make it support higher cards?
Any answers would be helpful

Solved
For those wondering themselves how to do this (Mango Update). Basically follow your guide to removing the old SD card and input the new one, ive had problems with kingston class 2 cards and bought a genuine sandisk 32gig class4 card which is now working and installed in my HTC Mozart.
After installing the new card and booting your phone you get a message "Memory card not working" whereas with the old original OS you got prompted to format (looks like M$ changed that feature). So what you need to do is power off the power and holding down both up and down on the volume keys power on the device. You`ll get prompted with a 2 options.
Volume Up - CRC checking ( i think)
Volume Down - Factory reset
NOTE-this will wipe your phone completly. If you havnt done a zune backup i STRONGLY advise you do this before attempting this.
Press down and you will see a message advising "Reset Complete". Power off the phone and turn it back on and the phone will restart in "First Run" mode. Once you have completed all the steps you should see the OS booted up. Check Settings\About\More Information and you should now see your new size depeding on the size of the SD card you`ve installed.

what's wrong with my SD card

I bought this SD card from amazon
Sandisk Ultra 32GB Class 10 Micro SD Card with SD Adapter
http://www.amazon.co.uk/gp/product/B007JTKLEK/ref=noref?ie=UTF8&psc=1&s=computers
formated by 4ext, has 1 EXT4 with 1GB/512MB, rest are FAT32. Installed VJ CM10.1 5.1 ROM, a2sd YNY. Nightmare came after phone booted, it's fast, but randomly "DEAD". "DEAD" mean phone totally freezed, no response at all, include all keys and screen. Have to remove the battery to restart....
I changed back to my old Class4 sd card. Did some test on this new class10 SD card, has no problem at all.
Is it because it's 32GB? Should I use a 8GB instead? Please help.

Hello!
I'm not sure, but i read alot about people getting trouble with a 32gb SD. Maybe do the partition again, something might have gone wrong.
Hope it helps,
- Rinse

Hello,
The first partition must be FAT32, than you can create the second partition in EXT4 format, I think.

Insert in pc, restore to defaults, format, then do as you please!

Huh, strange - I have same card, but 16GB.
In my tablet it is working without a problem. But in desire - I was trying for 5 days to make it working - without luck Random freezes, FC, phone dead (had to remove battery to power it on).
I tried diffrent roms - didn't work. Tried to format it (in 4ext), zero it (on pc with card reader), partition it again with diffrrent partition sizes (1.5GB, 1GB, 512MB) - nope.
Card is ok (as I said - in tablet it's working) - but my desire don't like it So I'm still on 2GB class -500 and thinking what to buy (8GB class 10 ? what manufacturer - adata, kingston? )

is 32gb working on htc desire?

SanDisk cards are known to cause the problems you described with the HTC Desire. I had a SanDisk 8 GB card too, and exactly the same problems... the solution is to not use SanDisk cards.

xhemx said:
is 32gb working on htc desire?
Click to expand...
Click to collapse
No it ain't...... My Desire lags as hell when I use the 32 GB class 10 Kingston card... Works on my QMobile Q3i.... Dunno how...

are you sure UHS-1 cards like these sandisk ultra are compatible with desire ?

Hi,
I'm using a sandisk card too, i do have a lot of problems with my HTC Desire.. can't use the phone anymore for daily use.
Freeze by phone calls, have to reboot 3 times before it's good and well started up.
Maybe SanDisk is the problem? Can someone confirm this? But why do they liver SanDisk by buying the phone then?

I have Samsung class 10 card and it works realy good.
Sent from my HTC Desire using xda app-developers app

Me too, using a Samsung class 10 16gb for a long time with int2ext and it really works fast and stable.
henrikht said:
I have Samsung class 10 card and it works realy good.
Sent from my HTC Desire using xda app-developers app
Click to expand...
Click to collapse

Hi there,
I have the same problems with SanDisk 4GB class 6. The trick is do not use app2sd.
I want also know if other cards like kingston do have the same problem.
Now i'm using VJ 4.1.2 with sd-card fat32 and no apps installed. At this moment there are no problems with my phone.!

squarefw said:
I bought this SD card from amazon
Sandisk Ultra 32GB Class 10 Micro SD Card with SD Adapter
http://www.amazon.co.uk/gp/product/B007JTKLEK/ref=noref?ie=UTF8&psc=1&s=computers
formated by 4ext, has 1 EXT4 with 1GB/512MB, rest are FAT32. Installed VJ CM10.1 5.1 ROM, a2sd YNY. Nightmare came after phone booted, it's fast, but randomly "DEAD". "DEAD" mean phone totally freezed, no response at all, include all keys and screen. Have to remove the battery to restart....
I changed back to my old Class4 sd card. Did some test on this new class10 SD card, has no problem at all.
Is it because it's 32GB? Should I use a 8GB instead? Please help.
Click to expand...
Click to collapse
I have the same card I picked up last fall and have the same problem. I'm going to try it out in a DSLR to see if it works there. My old card is a class 8 Adata (I think, might be Kingston) and started to randomly corrupt the fat partition, loosing all data and requiring a full reformat (which is why I got the Sandisk in the first place). So I can use a card that makes my phone completely useless as a phone or use a card that randomly looses all of my data. I should probably get a new card. On the upside I have become prolific at backing up my data. Also worth noting is that the Sandisk card is fast while it's runing.

I'm using SanDisk ultra 16gb uhs-1 for a couple of months now, didn't have any such trouble. could pvt version of desire be connected with that? Mine is pvt3

I'm also pvt3. I'm also rooted, s-off, use a2sd, no change with mounts2sd, and tried different ROMs (ICS, JB 4.1 & 4.2).
It seemed to only happen while using a heavy app if the phone was bogged down with multiple apps. To rule out a power supply voltage drop I replaced the battery. Although replacing my two year old battery was a good upgrade, it did not fix
the issue.
Everything I've tried points to a SD card issue so it is interesting to hear that it may only effect the 32GB UHS-1 cards. Samsung isn't as readily available around here so I may try the 16GB version but I'd prefer the upgrade to 32GB capacity. The card was phenomenally fast while the phone remained stable so I'd take speed over capacity. I just haven't seen mention of this problem with other 32GB cards.
Sent from my HTC Desire

If partitioning with 4ext recovery and cleaning the sd port in your phone (blow some compressed air into it, with phone powered off and let it regain normal temperature before powering back on) won't help, try sending the card back to SanDisk, in my country they give lifetime warranty for their cards. But first you gotta make sure your desire is intact hardware wise.
You might also test your card with tools like crystal disk mark and see if it gives up when strained.

follow topics....

Criise said:
Hi there,
I have the same problems with SanDisk 4GB class 6. The trick is do not use app2sd.
I want also know if other cards like kingston do have the same problem.
Now i'm using VJ 4.1.2 with sd-card fat32 and no apps installed. At this moment there are no problems with my phone.!
Click to expand...
Click to collapse
Exactly that was my experience.
I got the SanDisk (Class 2, 4GB) which came along with the HTC Desire and bought a new SanDisk for mobile devices a few months ago (Class 6, 8GB). Both are working fine if I don't partitoning the cards/don't use A2SD - the phone won't freeze, etc.
If I partition these cards (method doesn't matter, tried CWM, GParted and another tool [don't know the name]) the phone is going to freeze randomly and on 2G network every time. My HTC Desire is PVT1. I rooted and flashed two PVT3 and one PVT4 devices as well and aligned their cards - no problems at all. No freezes, everything is running pretty good. So I have no idea.
The last months my phone barely run, it was freezing all the time. Even some ROMs which were running very great 2 years ago didn't run again (My boyfrriend said the problems occured because I was flashing it too often... But I can't believe that ).
I wasn't able to figure out what's wrong, so I decided to buy a HTC One.
I guess it's some hardware related issue?

squarefw said:
I bought this SD card from amazon
Sandisk Ultra 32GB Class 10 Micro SD Card with SD Adapter
http://www.amazon.co.uk/gp/product/B007JTKLEK/ref=noref?ie=UTF8&psc=1&s=computers
formated by 4ext, has 1 EXT4 with 1GB/512MB, rest are FAT32. Installed VJ CM10.1 5.1 ROM, a2sd YNY. Nightmare came after phone booted, it's fast, but randomly "DEAD". "DEAD" mean phone totally freezed, no response at all, include all keys and screen. Have to remove the battery to restart....
I changed back to my old Class4 sd card. Did some test on this new class10 SD card, has no problem at all.
Is it because it's 32GB? Should I use a 8GB instead? Please help.
Click to expand...
Click to collapse
Try following the steps HERE, make sure your partition is no bigger than 1.5 GB (I read somewhere it can cause issuess otherwise, I can't find it now though). I hope this helps!

SD card problems

Did a few Google play store app updates this afternoon. Then decided to restart the phone. The phone no longer recognizes my SD card. Any suggestions?
Never seen a device do this. Tried other micro SD cards I have and the phone recognizes them fine. Tried my 64GB card in the computer and it sees all the data on the card. Stumped on this?
I notice my other SD cards are formatted as FAT32 and my newest 64 GB card is an exFAT format, but it's read it fine up to today?

Have u tried formating it to fat32.
Did the problem go away?

Wouldn't format to fat32. I ended up moving all my data (files, videos, photos, app data, etc.) Over to my computer, then I reformatted the SD card and moved all my data back. Phone reads all the data fine now, but I had to reload all my apps that I had running of the SD card. What a PITA!

kevin6876 said:
Did a few Google play store app updates this afternoon. Then decided to restart the phone. The phone no longer recognizes my SD card. Any suggestions?
Never seen a device do this. Tried other micro SD cards I have and the phone recognizes them fine. Tried my 64GB card in the computer and it sees all the data on the card. Stumped on this?
I notice my other SD cards are formatted as FAT32 and my newest 64 GB card is an exFAT format, but it's read it fine up to today?
Click to expand...
Click to collapse
I had this problem with a couple of sandisk 64gb microsd's while I was out of town....the only solution I found was finally to use an adata one...and I'm now using a samsung 128gb. I tried formatting it on a linux pc and the phone...it did not like the sandisk's and would eventually lose them. I did have some success in only formatting the 64gb sandisks to 32gb but I may not have waited long enough for it to get corrupted as my adata one was available once I returned home.

famewolf said:
I had this problem with a couple of sandisk 64gb microsd's while I was out of town....the only solution I found was finally to use an adata one...and I'm now using a samsung 128gb. I tried formatting it on a linux pc and the phone...it did not like the sandisk's and would eventually lose them. I did have some success in only formatting the 64gb sandisks to 32gb but I may not have waited long enough for it to get corrupted as my adata one was available once I returned home.
Click to expand...
Click to collapse
I'm starting to have what may develop into the same problem with the Sandisk 64 gb sd card in my camera (not a phone) -- so maybe Sandisk is having some reliability problems?

rhcohen said:
I'm starting to have what may develop into the same problem with the Sandisk 64 gb sd card in my camera (not a phone) -- so maybe Sandisk is having some reliability problems?
Click to expand...
Click to collapse
It was very frustrating for me as the whole point of purchasing sandisk was based on their reliability. I was concerned about the samsung 128gb I picked up for $69.99 but it's worked like a champ and has fast read/write speeds.

Trouble with Samsung EVO 64GB sd card
My Samsung EVO 64GB only partially works with my 6045i. It shows as mounted but struggles to unmount. Takes 2 tries. When I try to have a 3rd party app use it for storage it doesn't show available even with show SD card enabled and use Android 5 Storage Application Framework (see the attached screenshot).
I grabbed two other microSD cards, one Sandisk and one Patriot (Class 4), both 32GB. Both worked flawlessly in my Idol 3.
So now my son's Galaxy S3 is using the 64GB Samsung card (he's running CyanideL) and it appears to operate correctly.
I'm ok with using a 32GB for now, but what other cards are folks using for either 64 or 128GB external storage?

mikehd1959 said:
My Samsung EVO 64GB only partially works with my 6045i. It shows as mounted but struggles to unmount. Takes 2 tries. When I try to have a 3rd party app use it for storage it doesn't show available even with show SD card enabled and use Android 5 Storage Application Framework (see the attached screenshot).
I grabbed two other microSD cards, one Sandisk and one Patriot (Class 4), both 32GB. Both worked flawlessly in my Idol 3.
So now my son's Galaxy S3 is using the 64GB Samsung card (he's running CyanideL) and it appears to operate correctly.
I'm ok with using a 32GB for now, but what other cards are folks using for either 64 or 128GB external storage?
Click to expand...
Click to collapse
I also own same Samsung 64 gb microsd card. However, i can get access from 3rd party apps, but suffer from random cuts while playing music, seems media app issue.
Problem was firmware not microSD issue.

I have both a Sandisk and Samsung 64gb and they both have had the same problem that every once and while the phone will reboot by itself and when it come back up I cannot access SD card. I have taken it out and I can see all the apps, music and videos are still there on my computer but in the phone nothing. I have to save, reformat and re-download apps.

Anyone have a 128GB card fully working?
So the 64gb Samsung EVO died in my son's S3, so I gave him the 32gb one that I was using and sprung for a 128gb SiliconPower card, rated at up to 75MBps.
I can get the stock camera to save photos to it but when I try Open Camera, it isn't seen. I have storage access framework enabled in OC. I get the attached screenshot. Note that I do have "show sd card" selected. I can toggle it on/off with no visible change.
Its not just Open Camera either. Another app, Solid Explorer, has the same issue if I try move any photo files through it, it asks me to grant permission, shows the same window as attached, and then can't complete because the OS isn't showing it as available.
Any thoughts? Is this a bug in 5.0.2?
thanks,