Micro SD - HTC Vox

Is the SDHC type of Micro SD card compatible with the VOX or does it have to be SD only? Some are described as 'class 2'. Is this relevant?
thx

If you are using a custom WM 6.5 ROM, then it will support, otherwise I don't think it will (with Native WM 6 / WM 6.1 ROM)

The Vox supports SDHC cards out of the box afaik. If not (I doubt it) then additional drivers should enable this.
Class 2 (or other numers like 4,6) indicate the granted write speed in MB/sec. Usually the lates cards are much faster however. The device will write much slower than this so it does not matter for use in the device. It does matter when you fill the card externally, since a Class 6 is supposedly 3 times faster than a Class 2.
For exploiting write speed on external card readers several factors have to fit together. My fast cards allow roughly 10MB/s write externally, while the slow ones go down to 2MB/s.

Related

microSDHC 6gb working on my p3600

I have now a microSDHC 6gb in my p3600.
It is a Sandisk microSDHC 6gb in a microSD to miniSD adapter from Kingston.
I have about 4.5 gb data on it, many mp3's.
On this moment it works fine. Have anybody try this before?
(I have AX3L WM6 rom on my p3600)
Brilliant!
It boggles my mind why they have 6/8 gb micros, but not minis....soooo irritating. Guess I'll give your method a try since it seems to be working. Looking forward to more than 4gb on my phone!!!
Mike
Please tell me if you need any patch to do that?
I also have 3.0.8..AX3L WM6, please tel me if I need further patch or cab to enable my trinity SDHC compatible as when I was downloading the ROM I saw a SDhc cab I wasn't sure that time if I should had download & install it to make my trinity SDHC compatible. Plaese anybody guide me I'll be very thankful. I intend to buy 8gb sdhc. ???? please email me at [email protected] as I might loose track of this thread. Thanks
I have installed AX3L 3.1.1 Lite.
I didn't load a SDHC patch. I had buy a miniSDHC 4 gb and it works without a problem.
Now I have the MicroSDHC 6gb.
The 8gb MicroSDHC is comming in the next months.
Cool, thanks for the conformation that 6GB MicoSDHC’s with Micro>Mini adapters work in our WM6 Trinity.
Has anyone else tried a 6GB in a WM5 ROM by using the various patches around?
There are so many RegEdits and DLL’s floating around for SDHC support that I thought I’d try and collate them by viewing the contents of the CAB’s and doing some binary comparisons.
These are just my opinions and I welcome anyone who can correct/enlighten me.
1)
HTC_SDHCsettings.cab – 4.4KB
This one from lvsw basically adds a bunch of registry keys about BuiltIn SDHC and StorageManager but doesn’t add or modify any files.
2)
sdhc.cab – 66.4KB
This can be found all over the forum under different names. It adds two DLL’s but doesn’t add/modify the registry.
a) sdbus.dll – 47.4KB
b) sdmemory.dll – 15.4KB
3)
miniSD HC Patch v2.2.cab – 15.6KB
This one by AX3L adds the same sdmemory.dll from 2b and nothing else.
4)
SDHC drivers WM6.zip and here– 69.4KB
This has some extra fixes that have been proven to work in E-TEN’s.
a) sdhc.cab with the same two DLL’s as 2a&b.
b) Certs.cab – 4.59KB which adds a bunch of certifications (not sure what else it does).
After installing the two DLL’s to \Windows\ and the Cert’s, then you copy these two slightly different DLL’s across.
c) sdbus.dll – 47.8KB
d) sdmemory.dll – 15.8KB
I don’t have a SDHC to try this out on but will get one while in Japan next month. It would be nice if someone could try out a combination of these on WM5 to see if they work. I think a combination of 1 & 4 might do the trick
@ janegsm or anyone with AX3L 3.1.1 please check out these two sets of DLL’s and do a binary comparison with the ones installed on your ROM.
Would be nice to get some closure on this
OK, so I dumped AX3L’s 3.1.2c and did a binary comparison on the apparent DLL’s. As suspected they are different again to the previous DLL sets.
Only problem is, I don’t know what to do with the S000,S001,… files, convert them to reg entries? They mention reading the cards using block mode addressing and not byte mode addressing which is promising.
AX3L has pointed out on other threads that SDHC is controlled by many DLL’s and they are ROM specific, so I might just be talking round in circles, but if someone can do something useful with this then we might be able to get a working SDHC patch for the Trinity!
BTW janegsm, what class of MicroSDHC do you have? Class 4 appears to be most common at the moment.
im interested to know whether anyone has these running on a standard WM6 rom from HTC.
Also, are there any speed related issues with using microSD cards? there certainly are speed differences between SD and miniSD cards (mainly noticeable in my digital camera though).
Lastly, i can't seem to find any miniSDHC cards over 4gb. Is it just me, or there really isn't any out there? Why are there larger capacities for microSD and SD formats?
viperx said:
im interested to know whether anyone has these running on a standard WM6 rom from HTC.
Also, are there any speed related issues with using microSD cards? there certainly are speed differences between SD and miniSD cards (mainly noticeable in my digital camera though).
Lastly, i can't seem to find any miniSDHC cards over 4gb. Is it just me, or there really isn't any out there? Why are there larger capacities for microSD and SD formats?
Click to expand...
Click to collapse
Simple... electronics are getting smaller thereby the need to use a smaller card i.e. less real estate for the socket. Lots of companies are shying away from the mini to migrate to the micro. Mini manufactures see this trend and don't wish to spend resources developing and tooling for the mini when a micro with adapter will do the same thing. Hope this helps
umh, no one have try micro sdhc on WM5? the fix realy work?
where i can buy only micro to mini sd adapter? i have find only kingston package with micro to mini, micro to sd and micro sd of 1GB or 2Gb not more big.
I have WM6 ROM on my p3600.
I had buy a Sandisk microSDHC 6gb class 4.
Also I buy a Kingston 2gb micro, this is a set with 2 adapters: microSD to miniSD and microSD to SD.
I use only the sandisk 6gb and the microSD to miniSD adapter.
(I sell the 2gb MicroSD)
(When the Sandisk microSDHC 8gb comms I will buy the 8gb to.)
hauehuaEHUae
Take a look on this!!
http://www.mobileplanet.com/d.aspx?i=158255
bye!
I would like to try on my wizard with wm6 and SDHC kingston 4Gb. Have one that cabs worked? Any suggest to my download and trial?
just wonder how can micro-sd crad work in place of mini-sd ...anyone can tell me
evojulz said:
Cool, thanks for the conformation that 6GB MicoSDHC’s with Micro>Mini adapters work in our WM6 Trinity.
Has anyone else tried a 6GB in a WM5 ROM by using the various patches around?
There are so many RegEdits and DLL’s floating around for SDHC support that I thought I’d try and collate them by viewing the contents of the CAB’s and doing some binary comparisons.
These are just my opinions and I welcome anyone who can correct/enlighten me.
1)
HTC_SDHCsettings.cab – 4.4KB
This one from lvsw basically adds a bunch of registry keys about BuiltIn SDHC and StorageManager but doesn’t add or modify any files.
2)
sdhc.cab – 66.4KB
This can be found all over the forum under different names. It adds two DLL’s but doesn’t add/modify the registry.
a) sdbus.dll – 47.4KB
b) sdmemory.dll – 15.4KB
3)
miniSD HC Patch v2.2.cab – 15.6KB
This one by AX3L adds the same sdmemory.dll from 2b and nothing else.
4)
SDHC drivers WM6.zip and here– 69.4KB
This has some extra fixes that have been proven to work in E-TEN’s.
a) sdhc.cab with the same two DLL’s as 2a&b.
b) Certs.cab – 4.59KB which adds a bunch of certifications (not sure what else it does).
After installing the two DLL’s to \Windows\ and the Cert’s, then you copy these two slightly different DLL’s across.
c) sdbus.dll – 47.8KB
d) sdmemory.dll – 15.8KB
I don’t have a SDHC to try this out on but will get one while in Japan next month. It would be nice if someone could try out a combination of these on WM5 to see if they work. I think a combination of 1 & 4 might do the trick
@ janegsm or anyone with AX3L 3.1.1 please check out these two sets of DLL’s and do a binary comparison with the ones installed on your ROM.
Would be nice to get some closure on this
Click to expand...
Click to collapse
No luck with WM5. I tried all the options above (except #3) and the best I could get was to have a 6GB micro SD recognized as a 2GB card. Any solutions that will work with WM5 would be welcome, as WM6 is not an option for me right now.
astroganger said:
just wonder how can micro-sd crad work in place of mini-sd ...anyone can tell me
Click to expand...
Click to collapse
Pretty simple, with an adaptar mini sd for micro sd, same thing that u can use a mini sd as a simple sd card.
tedkyle said:
No luck with WM5. I tried all the options above (except #3) and the best I could get was to have a 6GB micro SD recognized as a 2GB card. Any solutions that will work with WM5 would be welcome, as WM6 is not an option for me right now.
Click to expand...
Click to collapse
Gutted, I still haven't heard of anyone getting this to work with a WM5 Trinity
Have you tried using AX3L's DLL's (from post 6 of this thread) after installing the certs.cab?
There has been a surprising amount of success here which is exactly the same as option #4 of my post you quoted.
I still don't have a SDHC card but will probably jump straight to the 8GB, although there still seems to be issues being able to see more than 4GB of the 8GB cards even using Trinity WM6.
Now I'm even more determined to get this working on WM5.
Still No Luck w WM5
evojulz said:
Gutted, I still haven't heard of anyone getting this to work with a WM5 Trinity
Have you tried using AX3L's DLL's (from post 6 of this thread) after installing the certs.cab?
There has been a surprising amount of success here which is exactly the same as option #4 of my post you quoted.
I still don't have a SDHC card but will probably jump straight to the 8GB, although there still seems to be issues being able to see more than 4GB of the 8GB cards even using Trinity WM6.
Now I'm even more determined to get this working on WM5.
Click to expand...
Click to collapse
I followed up on both of your suggestions. I tried the thread you pointed me to and I tried using AX3L's DLL's. The only thing I got out of the process was a lot of trouble overwriting the DLL's. When I succeeded, the cards were not showing up at all. Otherwise, the system only saw 1.7gb of my 6gb Micro SDHC.
Hi, I am trying to install the patch for SDHC on a HTC P3300 phone with WM6. I cant copy the dll files to the windows directory which seems to be read only but cant find a way to change that. Can someone help?
How do you copy files to windows directory?
I am trying to install the SDHC patch on a HTC P3300 phone. When I try to copy the .dll files to the windows directory it seems it is read only. I cant find a way to change this. Can someone please help?
New Problems with Micro SDHC Card, help needed
Problem: I was using a SanDisk 6GB MicroSDHC Card with MiniSD-Adaptor in my Trinity (P3600):
With the Original WM5 Rom there was no chance; when I switched to Bepe's WM6 German it was recognized at once and working (still I think a bit slower than a 4GB MiniSD Card) but the older my installation of WM6 got (or perhaps the MicroSDHC Card) the problems got worse: Very slow when using something that was on the Card and finally no chance to work with the card anymore. Then I formatted the card in my PC and did a new installation of the same Bepe WM6 ROM on my P3600. Since that time there is no chance to use the card in the phone: it doesn't get recognized, did't matter what I tried. But in my much older TyTN with WM6, the card works perfectly!?!
Maybe anybody has an idea. e.g.: I wanted to format it in my Trinity or TyTN, but I can't find any option for that.
(Funny: When I put on my camera in Trinity, it asks to use Main or Card memory, I chose card an it hangs (needs softreset); memory manager says no card at same time; I put the card out and in my TyTN and open explorer and can see that the trinity has made new my documents and pictures folders on the card???)
edit: Seems to be a Trinity failure: Now I tried my older 4GB MiniSD card and 2GB MiniSD card in the Trinity and it doesn't recognize any of it; so it should be a Trinity failure?
Does anybody have a clou what I could try to do or will the device have to go to repair?
Thanks a lot for any suggestions!

SDHC & XP Compatibility Issues

Hi Folks
I've trawled the forums but I can't see anything directly relational about this matter.
Basically I bought a 4gb SDHC card which didn't work, so I returned it. The replacement has the same issue. Having looked a bit around I found there was a hotfix from Microsoft (google ms hotfix sdhc).
Considering how people here use their PDAs I thought there would be some mention.
Perhaps I am the only one who does not have Windows up to date and thus this is the reason
Oh, and you need a validated XP to get this hotfix. Still, to be expected I suppose....
Some Secure Digital (SD) cards do not work correctly on Windows XP-based computers. Additionally, you may notice a yellow exclamation mark (!) next to the SD card in Device Manager.
This problem may occur even though you have applied other hotfixes that are required for high-capacity SD card support. For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
923293 (http://support.microsoft.com/kb/923293/) The 923293 hotfix adds support for SD High Capacity memory cards in Windows XP
934428 (http://support.microsoft.com/kb/934428/) Hotfix for Windows XP that adds support for SDHC cards that have a capacity of more than 4 GB
However, http://support.microsoft.com/kb/923293/ means that you need to tell them about your situation before they let you have the file. I've already downloaded 934428 so we'll see where that takes me
Which puts me back at square one, because I still can't read SDHC cards through the PC. I can access it through the PDA and it seems to work ok there but not through the actual card reader.
Thod
I believe the Microsoft hotfixes are specific to certain readers. Other readers (for example, the memory card slots on a monitor) use a different driver, which needs to be updated.
For example, I have a Dell 2405FPW, and it is not compatible with SDHC, even after the Microsoft hotfix. However, I can read my SDHC card using the USB adapter that came with the SDHC (actually microSDHC), even without the Microsoft hotfix.
These hotfixes are for XP not the device. The device can read it ok, but MS Windows XP can't!!!
I have got around it now. Plug the SDHC into the PDA, and the PDA into the computer. Bit slow but gets there in the end!
are you sure your card reader supports sdhc?
i had a (old) microsd to sd card convertor, that wasn't capible of reading sdhc? did the card reader come with your sdhc card?
I found out on the DELL official website the firmware upgrade for the reader and the SDHC Patch.
Problem is that they did the updates exclusively for there desktop brands and not for the DELL monitor apart.
So.. if someone can tweak the firmware and the driver to bypass these check routines, maybe we can succeed?
Here are the links:
Driver (SDHC Patch): http://support.dell.com/support/dow...1&impid=-1&formatcnt=1&libid=32&fileid=240264
Firmware:
http://support.dell.com/support/dow...1&impid=-1&formatcnt=1&libid=32&fileid=240271
I recently purchased a Toshiba R500 notebook which has a SD card reader built-in. I was unable to get my SDHC cards to work in it until I ran the XP SP3 upgrade on my Notebook. Apparently it has all of the new drivers included in the fix. Now the card reader works with all my cards including my 8gb microSDHC with SD adapter.
I have SP3 on my XP and that does not solve my problem
SP3 doesn't help! Boo!!!
Any one found a solution fro this problem. I just installed SP3 and still no dice reading Micro SDHC cards with builtin card reader or with usb readers. Readers will detect but say to insert a disk when an 4 or 8 gb card is inserted. 1 and 2 gb cards (non sdhc) seem to work fine.
Hot fixes will not install over SP3 says newer service pack already installed.
I guess ill try to get the wmstorage working on my device for the mean time, it is somewhat more quicker than using active synch for data transfers between my the device and computer.
Check under device manager what is the brand of your built-in card reader and google the company to see if they have a firmware update or new drivers for the unit.
wovens said:
Check under device manager what is the brand of your built-in card reader and google the company to see if they have a firmware update or new drivers for the unit.
Click to expand...
Click to collapse
Too bad, it seems to be generic... "Generic USB Card Reader Driver v2.2e4" eMachines site has a northstar media reader driver maybe I'll try that. I wsould do a search with vendor ID and Product ID but card reader seems to be inactive unless there is a card less than 2 gb installed. I'll also investigate that, after i locate a non sdhc card. No dice with the external usb reader either... vid 058f pid 6335. Found drivers for this guy but no firmware.
Maybe ill drop by an electronics store and see if any card readers indicate they can read sdhc cards. Active Sync xfers are sloooow! WM5storage is slightly faster, but not as quick as a working card reader...
older readers are not compatible with sdhc cards and only fix is a firmware upgrade
i got a microSdhc card and it could not be read by
sandisk cruze sd to usb using the sd->microSd conveter
thinkpad t61 with sd->microSd conveter
sandisk 8-1 usb reader sd->microSd conveter
but hp tx1270 had no problems using sd->microSd conveter
got a sandisk micoSD to usb thingy and everybody reads it just fine
I guess i need a new card reader!
Rudegar said:
older readers are not compatible with sdhc cards and only fix is a firmware upgrade
i got a microSdhc card and it could not be read by
sandisk cruze sd to usb using the sd->microSd conveter
thinkpad t61 with sd->microSd conveter
sandisk 8-1 usb reader sd->microSd conveter
but hp tx1270 had no problems using sd->microSd conveter
got a sandisk micoSD to usb thingy and everybody reads it just fine
Click to expand...
Click to collapse
My 8 gb micro came with a generic SD card reader and sd adaper, but no dice. My eMachines is kind of an older notebook, so im not surprised that i wouldnt work... I guess i was hoping newer drivers would correct this issue but no cigar. I had a transflash/micro sd reader that came with my DS Modchip but no dice with that either.
i will go to and look for a name brand card reader such as your sandisk adapter. At least with a name brand i will have better support than with my current generic readers.
Any additional info on your sandisk reader?
Thanks everbody for all of your help!
SanDisk MediaMate
jamorgan2008 said:
My 8 gb micro came with a generic SD card reader and sd adaper, but no dice. My eMachines is kind of an older notebook, so im not surprised that i wouldnt work... I guess i was hoping newer drivers would correct this issue but no cigar. I had a transflash/micro sd reader that came with my DS Modchip but no dice with that either.
i will go to and look for a name brand card reader such as your sandisk adapter. At least with a name brand i will have better support than with my current generic readers.
Any additional info on your sandisk reader?
Thanks everbody for all of your help!
Click to expand...
Click to collapse
Pocked up a SanDisk MediaMate SD+ at Staples. The reader works great!
i have a 4gb dane-elec micro sdhc card and it doesnt work on my htc tytn or my pc.
i tried doing the xp hotfix but it wont let me complete because it says i have sp3.it does work however in my nokia n95....i formatted it there many times but it my pc or tytn still wont detect it...
any help please?
i have brought it back to the store twice and the problem still remains....

16GB microSD [Class 4]... Error or Scam?

Does anyone know a reason why a 16gb [class 4] would only let 8gb (7.5) be written to it?
It is a Kingston, and I am fairly certain the card is authentic. It indicated a full 16gb capacity out of the box, but got the "cannot copy or create: parameter is incorrect" message when 7.5gb was reached. Tried a format, and now 7.5gb is the recognized figure. At the moment am using a SanDisk ImageMate All-in-One reader (brand new; has a dedicated microsd slot, but will only read it through the SD slot via adapter).
Any thoughts? (and I hope it's not that someone went through the trouble of re-labelling it and programming it to read a false capacity)
Thanks everyone
those traits you mentioned are very viable symptoms for a fake memory card.
-Does your OS recognise it as a 16 GB? My computer -> Removable device -> Properties??-
Sorry misread your post
Have you tried it on another pc and/or with another cardreader (or maybe just with your handset, plug in your sd-card and use it as a cardreader)
Daan
btw, not all readers are capable of reading 16gbs... might want to try another one tho it does sound as if it's a fake

Memory stored on external instead of internal

i just thought about ROM's made to store memory on SD cards instead of being stored internaly. can anyone explain y it wouldnt work or y anyone hasnt done it yet?
also wanted to add, by doing this change of memory storage it would speed up the system by 50%. it would also be a + for people who play video games on their smart phones Zonia, Inotia, MMO's ect"""
An SD card, or any format of memory card for that matter, can only be used for the storage of data. It behaves like a hard disk. Data on it must be serially 'read' into a main memory buffer, before it can be accessed by your device's processor.
You can't replace 'real' memory with it or try to use it as real memory.
hijack562 said:
doing this change of memory storage it would speed up the system by 50%
Click to expand...
Click to collapse
why?
10 characters
so cant you partition a sd card to be used as real memory? or can it be possible to compress real memory?
and why you ask? cuz it would be nice to play games on a smart phone that only comes with 200mb or less memory. but has a fairy decent processor
Too Slow
The reason they don't do that is because SD cards are MUCH slower than memory. the fastest SD cards (Class 10) only transfer data at 10 MB/s. Memory on the other hand transfers data in the range of gigabytes per second. Even if the memory used a very "slow" rate of 1GB/s that is still 100x faster than a SD card is.
really?? a class 10 only reads 10mb per sec?? dam thats slow...but isnt a sd card consider a soild state drive or not?
Take a close look at an SD card. It only has 9 pins on it. In standard mode two of them aren't used, leaving 7. After 1 x Chip Select, 1 x Power, 2 x Ground, and 1 x Clock, that leaves two pins - namely 1 x Data In and 1 x Data Out.
Not a 32 bit data/address bus like an x86 or ARM processor, but a single, one bit wide bus.
A byte of stored data comes out of the Data Out line as 8 bits, one at a time.
Commands to the card, to ask it to retrieve/store the data you want, have to be sent down the Command/Data In line the same way. Data to be written to the card goes in down the same Data In line the same way, again one bit at a time.
Even though the clock rate can, in theory, be wound up to 25Mhz, it is still a tedious process to get data in and out of the thing.
True solid state drives use the SATA interface, a different type of interface, still serial as above, but the clock rates are much, much higher allowing 1.5 to 6.0 GBit/s transfer rates.
Memory cards can be considered solid state drives, just damned slow ones.
Sorry if this isn't directed towards OP but since we are talking about SD cards anyways I thought I'd ask. Any way to tell what class your SD card is? I have a 16GB one so I'm assuming its class 10.
New cards have the class number on the label, as Class n, or as a capital 'C' with the class number in it.

Samsung 64GB SD Card - SO SLOW

So I ordered a Samsung 64GB Class 10 micro SD card, and it seems VERY slow.
While I gone so much mind the slowness, as I dont play a lot of games and would use it more for pictures and music I was wondering if I could get a few questions answered before I send it back or just give it to someone else.
1: Does the S4 have problems with 64GB cards?
- I am running Sacs KitKat V2
2: should I format with a format (NSFT/exFat) and is it better done on a Mac or PC?
3: what should the Unit Size be?
4: I just copied my old sd card on to this one, and some of the big games I do have stopped showing up. but when I put my old card back in, they are there again.
Why would this happen?
Thanks for the help everyone!
You have to format the card using the phone itself. Go into settings then storage and the option should be there. Try that, then re-copy your stuff to the card. If you still have problem then it is probably a dud card.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
You shouldn't re-format it at all from stock, but if you do you should try the official SD Formatter: https://www.sdcard.org/downloads/formatter_4/
I have a samsung 64GB microsd in my S4 and it's ridiculously fast according to SD Tools (http://i.imgur.com/EXUVIP7.png), probably a caching causing that; but anyways, it's great in normal use copying roms over/etc.
Oishikatta said:
...probably a caching causing that
Click to expand...
Click to collapse
LOL, you don't say! Divide those numbers by 10 and you have a more realistic speed indication :good:
Pfeffernuss said:
LOL, you don't say! Divide those numbers by 10 and you have a more realistic speed indication :good:
Click to expand...
Click to collapse
No, samsung does claim the card gets 70MB/s read and 20MB/s write - and the reviews on amazon match that even for the lower priced card:
http://www.amazon.com/Samsung-64GB-PLUS-Micro-Adapter/dp/B00I4ZMNY4/
Obviously the SD Tools benchmark isn't testing the actual card performance, but what matters is that in actual use the samsung cards are great.
Windows/crystaldiskmark can also easily be used to do a real test.
Here's in a usb 2.0 card reader:
Sequential Read : 23.455 MB/s
Sequential Write : 17.352 MB/s
Random Read 512KB : 22.898 MB/s
Random Write 512KB : 16.407 MB/s
Test : 100 MB [D: 32.1% (18.8/58.5 GB)] (x5)
Date : 2014/03/26 11:16:15
OS : Windows 8.1 [6.3 Build 9600] (x64)
If @chaos67731 isn't getting at minimum 10-20MB/s after formatting the card then there's probably something wrong with it.
chaos67731 said:
1: Does the S4 have problems with 64GB cards?
- I am running Sacs KitKat V2
2: should I format with a format (NSFT/exFat) and is it better done on a Mac or PC?
3: what should the Unit Size be?
4: I just copied my old sd card on to this one, and some of the big games I do have stopped showing up. but when I put my old card back in, they are there again.
Click to expand...
Click to collapse
1: A good amount of users (including me) had problems with their SD cards on S4s. The problems are between:
occasional unmount/remount (the system does this for no apparent reason). S4 cant read cards after a sudden unmount, and cards usually get killed. most of the cards reported are 16,32 and 64 GB micro SD kingstone. SandDisk has problems too but I'm not sure about Samsung's.
2: Just use the official SD formatter mentioned by @Oishikatta above.
3: if you used the official SD formatter you wont have to deal with Unit Size. (personally, I dont know what's that)
4: Do you use a card reader when you copy your memory card? or do you just connect the phone using a cable? try using a card reader when copying your SDs. Some hidden files may not appear if you used the cable.
I hope I helped and excuse my English, its not my native language.
Well if you have a SanDisk they want you to format exfat. http://kb.sandisk.com/app/answers/d...sion/L3RpbWUvMTM5NTg5ODI5OS9zaWQvRDdTTFVmUWw=
Oishikatta said:
No, samsung does claim the card gets 70MB/s read and 20MB/s write.
Click to expand...
Click to collapse
Sure, on a PC with an appropiate very fast SD-card reader. Using a phone you won't get those advertized speeds.
This is the result with a more proper SD-benchmarking app (although internal and external SD are shown in reverse):
These values will be more realistic. SD-Tools results (cached) don't mean jack, unfortunately.

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