I'm having trouble with Class 10 SD cards.
The error in dmesg is:
Code:
<3>[74882.568572] Buffer I/O error on device mmcblk1p2, logical block 15712259
<4>[74882.575561] lost page write due to I/O error on mmcblk1p2
<3>[74882.932128] mmcblk1: error -110 transferring data, sector 15791897, nr 1, card status 0xe00
Apparently this is a known problem with the incorrect timeout on high-speed SD cards.
The kernel source file is omap_hsmmc.c, the timeout needs to be hardwired as 14:
Code:
static void set_data_timeout(struct mmc_omap_host *host,
struct mmc_request *req)
uint32_t reg, dto;
reg = OMAP_HSMMC_READ(host->base, SYSCTL);
dto = 14;
reg &= ~DTO_MASK;
reg |= dto << DTO_SHIFT;
OMAP_HSMMC_WRITE(host->base, SYSCTL, reg);
}
I've put off actually delving into kernel building for a long time...
Renate NST said:
I'm having trouble with Class 10 SD cards.
The error in dmesg is:
Code:
<3>[74882.568572] Buffer I/O error on device mmcblk1p2, logical block 15712259
<4>[74882.575561] lost page write due to I/O error on mmcblk1p2
<3>[74882.932128] mmcblk1: error -110 transferring data, sector 15791897, nr 1, card status 0xe00
Apparently this is a known problem with the incorrect timeout on high-speed SD cards.
The kernel source file is omap_hsmmc.c, the timeout needs to be hardwired as 14:
Code:
static void set_data_timeout(struct mmc_omap_host *host,
struct mmc_request *req)
uint32_t reg, dto;
reg = OMAP_HSMMC_READ(host->base, SYSCTL);
dto = 14;
reg &= ~DTO_MASK;
reg |= dto << DTO_SHIFT;
OMAP_HSMMC_WRITE(host->base, SYSCTL, reg);
}
I've put off actually delving into kernel building for a long time...
Click to expand...
Click to collapse
Ah, I've seen various issues with my Sandisk Ultra 32GB Class 10/UHS-I card. I figured it might just be a clash between the Nook and that particular card, or that my Nook's SD card slot wasn't making consistently good contact.
Perhaps get waynesi to include the fix in his 1.2.1-derived kernel: http://forum.xda-developers.com/showthread.php?t=2294948
I came across http://crave.cnet.co.uk/mobiles/samsung-galaxy-s3-fault-is-caused-by-sandisk-memory-cards-50010684/ yesterday, documenting the Samsung GS4 killing SD cards from various manufacturers. No idea of the classes of SD cards affected, but I wonder if this is a deeper problem in the kernels used by various Android devices?
I've always worked on the assumption that if a device specifies it works with class X SD cards, then it'll work at least as well with Class >X SD cards, even if it doesn't get the maximum performance the SD card permits. Consequently, I've always bought the biggest, fastest economic choice with a view to it remaining useful for longer (e.g. for future devices). I'm revising that view.
Interesting to see this thread. I just bought a Nook touch and was looking into what card to by. In the UK now it seems that the choice is between class 4 and 10. I have seen posts recommending class 6 for the nook and had assumed that class 10 would also be ok. Would it be better to stick with a class 4? I only plan to use my nook as a reader so I can't see why it would need a fast card tbh.
I wouldn't have got mixed up with Class 10 either except for doing 24 bit stereo recording.
I find that my old class 4 does fine with the ALSA buffer configured correctly.
A more important point I find is getting rid of FAT on SD cards if you rely on timestamps at all.
(I use adbsync.exe for syncing and it uses timestamps).
The Nook's implementation of FAT is screwy and rewrites file timestamps in different timezones.
Check out vold and ext3 if you care about any of this.
I have a samsung sd card 10 32 gb
If u tell me how, i can post my dsmeg if help u
Sent from my GT-I9070 using xda premium
To see the dmesg, just type "dmesg" to an ADB shell.
I don't think we'll learn anything new from your log,
but you can see if your Class 10 is having problems.
The error message will be the same as at the top of this thread.
Thanks for the reply. I have a 16GB class 4 in my phone so I may put that in the nook and get a new one for the phone.
I am only planning to use the nook as a reader but I am a linux user so I know what ext is and it is no problem for me to format the card as ext3. Are there any drawbacks to using ext3 instead of fat?
There are no disadvantages to having your SD card in ext3,
that is, except for the fact that the Nook volume daemon won't mount them.
See the thread on the replacement vold: http://forum.xda-developers.com/showthread.php?t=2184495
Had a quick look at the thread and think I will steer clear When you mentioned ext3 I thought as it is based on linux android would be able to use ext but I think for my basic needs I will stick to fat.
Renate NST said:
I'm having trouble with Class 10 SD cards.
The error in dmesg is:
Code:
<3>[74882.568572] Buffer I/O error on device mmcblk1p2, logical block 15712259
<4>[74882.575561] lost page write due to I/O error on mmcblk1p2
<3>[74882.932128] mmcblk1: error -110 transferring data, sector 15791897, nr 1, card status 0xe00
Apparently this is a known problem with the incorrect timeout on high-speed SD cards.
The kernel source file is omap_hsmmc.c, the timeout needs to be hardwired as 14:
Code:
static void set_data_timeout(struct mmc_omap_host *host,
struct mmc_request *req)
uint32_t reg, dto;
reg = OMAP_HSMMC_READ(host->base, SYSCTL);
dto = 14;
reg &= ~DTO_MASK;
reg |= dto << DTO_SHIFT;
OMAP_HSMMC_WRITE(host->base, SYSCTL, reg);
}
I've put off actually delving into kernel building for a long time...
Click to expand...
Click to collapse
FYI, latuk has built a kernel including this fix (along with FastScreen & MultiTouch & UsbHost & UsbToCom & UsbSound. The module cdc-acm is included to make ttyACM0 for GSP Holux M-1000C). It's linked from http://forum.xda-developers.com/showpost.php?p=43797159&postcount=172. I've installed it on my Nook and it booted. I'm testing it now.
jumpingclear said:
Thanks for the reply. I have a 16GB class 4 in my phone so I may put that in the nook and get a new one for the phone.
Click to expand...
Click to collapse
There seems to be an assumption that faster SD cards are automatically better; that may not always be the case. Some research suggests that faster cards are better for sequential read/write - i.e. when working with large files such as digital images. They may be the best card to use for digital cameras for this reason.
Random access read/write, e.g running an OS and randomly accessing small and dispersed files, may work better on nominally slower cards. This is mentioned on a Wikipedia page about Secure Digital cards. As a new user, I can't post outside links so you'll have to Google it.
A relevant paragraph from the Wikipedia page is:
The speed class rating does not totally characterize card performance. Different cards of the same class may vary considerably while meeting class specifications. In addition, speed may vary markedly between writing a large amount of data to a single file (sequential access, as when a digital camera records large photographs or videos) and writing a large number of small files (a random-access use common in smartphones). One study found that, in this random-access use, some Class 2 cards achieved a write speed of 1.38Mb/sec, while all cards tested of Class 6 or greater (and some of lower Classes; lower Class does not necessarily mean better small-file performance), including those from major manufacturers, were over 100 times slower.
Click to expand...
Click to collapse
The 'one study' the above paragraph refers to is available as a PDF document from the page I've mentioned above (but can't link to).
FYI, I told latuk about this thread, and he included the patch in his kernel, which I'm now using on my NST.
At first I thought it was helping, but it seems that apps running on the NST that write to the sdcard (I my case, a SanDisk Ultra 32GB Class 10/UHS-I) still cause it to become forcibly unmounted (with consequent filesystem corruption; typically bad VFAT short file names).
EDIT:The bad VFAT short file names seem to be "normal" for any writes performed by the Nook. But the class 6 doesn't seem to get forcibly disconnected like my class 10 did.
It seems, those with NST Glowlight, should buy class 6 for now and avoid class 10, right?
Asking because I'm looking for 64GB MicroSD and all I find are class 10!
idoit said:
It seems, those with NST Glowlight, should buy class 6 for now and avoid class 10, right?
Asking because I'm looking for 64GB MicroSD and all I find are class 10!
Click to expand...
Click to collapse
I think so, yes.
cowbutt said:
I think so, yes.
Click to expand...
Click to collapse
Now, I want to know how you guys manage to get 64GB class 6 MicroSDs? I'm looking everywhere, Amazon, eBay etc. No success. They are like this link, not available. See: www.bhphotovideo.com/c/product/836207-REG/
EDIT: Ahhh, I think I finally found one: http://www.ebay.com/itm/Sandisk-micro-sdxc-mobile-ultra-64gb-class-6-galaxy-s2-s3-s4-Note-2-3-Tab-7-0-/181254295668?pt=US_Cellphone_Memory_Cards&hash=item2a33991074
idoit said:
Now, I want to know how you guys manage to get 64GB class 6 MicroSDs? I'm looking everywhere, Amazon, eBay etc. No success. They are like this link, not available. See: www.bhphotovideo.com/c/product/836207-REG/
Click to expand...
Click to collapse
Sorry, I wasn't clear. I use a 32GB class 6 card. TBH, it's plenty, even with the full text of Wikipedia and a bunch of other aard dictionaries.
EDIT: Ahhh, I think I finally found one: http://www.ebay.com/itm/Sandisk-micro-sdxc-mobile-ultra-64gb-class-6-galaxy-s2-s3-s4-Note-2-3-Tab-7-0-/181254295668?pt=US_Cellphone_Memory_Cards&hash=item2a33991074
Click to expand...
Click to collapse
Yup, SanDisk did used to make their 64GB SDXC as a class 6 device; I bought one for my SGS2 when their 64GB cards were just coming out, about Jan 2012. New stock is class 10. I'm not sure I'd trust eBay for memory cards, though; counterfeits are so common. I always buy my memory cards directly from reputable suppliers, preferably listed on the manufacturer's website.
Also, I'm not sure if a 64GB card will work with the NST (like it does with the SGS2, even though its specs state a maximum of 32GB).
cowbutt said:
Yup, SanDisk did used to make their 64GB SDXC as a class 6 device; I bought one for my SGS2 when their 64GB cards were just coming out, about Jan 2012. New stock is class 10. I'm not sure I'd trust eBay for memory cards, though; counterfeits are so common. I always buy my memory cards directly from reputable suppliers, preferably listed on the manufacturer's website.
Click to expand...
Click to collapse
At SanDisk lot of problems with the latest memory cards. I have a class 10 card works in Nook.
Related
currently there is a few lag fix out there;
- Real Fix by mimocan
- One Click Lag Fix ver 1, ver 2 by RyanZA
- CFLagFix by Chainfire
- A2SD FIXLAG (in SamSet ROM) by setenza01
- HKT Fix by ykk_five
Lets not talk about speed. This thread objective is to talk about the memory life.
Do you prefer to burn the life of internal SD or External SD?
Internal SD is definately gentle on the battery life but not the case for External SD.
And since Ext SD may have a better write speed.....
To weight these out, which have a longer warranty?
So which you prefer, lets talk about it.
If we assume that these kinds of fixes do have a noticeable negative effect on your SD card (with noticeable I mean that you'll notice it before you upgrade/sell your phone), the fixes using the external SD cards would be the best way to go in pure lifetime as you can simply replace the external SD cards should it become corrupt in some way.
There's been a few posts about regarding the negative effect of extX on the internal SD card, as far as I've read however it seems the effect is so low that unless you keep your phone for about 5 years you won't notice it.
Please correct me if I'm wrong as I'm not entirely confident with using extX file systems on my internal sd card either.
i like the fix that uses the External SD for this exact reason
External SD are cheap, and easily changeable
internal SD are not, so i'll only use internal SD for Apps that don't require much changes
I usually install all my Apps to External SD
i1fang said:
currently there is a few lag fix out there;
- Real Fix by mimocan
- One Click Lag Fix ver 1, ver 2 by RyanZA
- CFLagFix by Chainfire
- A2SD FIXLAG (in SamSet ROM) by setenza01
- HKT Fix by ykk_five
Lets not talk about speed. This thread objective is to talk about the memory life.
Do you prefer to burn the life of internal SD or External SD?
Internal SD is definately gentle on the battery life but not the case for External SD.
And since Ext SD may have a better write speed.....
To weight these out, which have a longer warranty?
So which you prefer, lets talk about it.
Click to expand...
Click to collapse
I can gaurentee you all that all of you will switch devices LONG before something happens to either the internal or the external SD.
NAND chips are more durable than you probably think.
Pika007 said:
I can gaurentee you all that all of you will switch devices LONG before something happens to either the internal or the external SD.
NAND chips are more durable than you probably think.
Click to expand...
Click to collapse
You know, it's easy to claim something like that, but if you would provide a source to that claim, it would be helpful for all.
XQC said:
You know, it's easy to claim something like that, but if you would provide a source to that claim, it would be helpful for all.
Click to expand...
Click to collapse
http://www.networkcomputing.com/data-center/how-long-does-nand-flash-memory-last.php
That might shed light on the issue, and seeing as the article is two years old I presume that the nand technology might be even more durable in 2010.
I personally use the NAND fix since I prefer battery life (53h on and 23% battery left at the moment with moderate usage) and there is so much else that can kill your phone before the NAND stops working.
Guys, guys! The EXT2 fixes are just buffering data to the SD card! (This isn't the system NAND you're thinking of, either!)
Let's say an application counts from 1 to 10, and writes the value each time to disk.
Stock:
1 -> App tells RFS to write 1 to disk -> RFS writes 1 to disk -> RFS writes journal saying to changed the value on the disk.
2 -> App tells RFS to write 2 to disk -> RFS writes 2 to disk -> RFS writes journal saying to changed the value on the disk.
..
9 -> App tells RFS to write 9 to disk -> RFS writes 9 to disk -> RFS writes journal saying to changed the value on the disk.
10 -> App tells RFS to write 10 to disk -> RFS writes 10 to disk -> RFS writes journal saying it changed the value on the disk.
Total physical disk writes: 20. Speed: SLOW! Wear and tear on disk: HIGH!
Lag Fix:
1 -> App tells EXT2 to write 1 to disk -> EXT2 stores 1 in RAM.
2 -> App tells EXT2 to write 2 to disk -> EXT2 stores 2 in RAM.
..
9 -> App tells EXT2 to write 9 to disk -> EXT2 stores 9 in RAM.
10 -> App tells EXT2 to write 10 to disk -> EXT2 stores 10 in RAM.
..
EXT2 tells RFS to write 10 to disk -> RFS writes 10 to disk -> RFS writes journal saying it changed the value on the disk.
Total physical disk writes: 2. Speed: FAST! Wear and tear on disk: LOW!
This isn't exactly what is happening, but it gives you the general idea.
XQC said:
You know, it's easy to claim something like that, but if you would provide a source to that claim, it would be helpful for all.
Click to expand...
Click to collapse
SLC chips last a lot longer than MLC....Thats well known.
But that all depends on if wear leveling exists... If it isn't somehow implemented, expect pain.
Do any flash memory-based devices not implement controller-level wear leveling? I didn't think that had anything to do with the file system. After all, most SDHC cards are FAT32 formatted, and before that, SD cards generally used FAT16. Those file systems were invented before flash memory was around.
andrewluecke said:
SLC chips last a lot longer than MLC....Thats well known.
But that all depends on if wear leveling exists... If it isn't somehow implemented, expect pain.
Click to expand...
Click to collapse
just found this out
http://www.samsung.com/global/business/semiconductor/products/fusionmemory/Products_MoviNAND.html
We are consider quite safe, that the current MoviNAND is still based with 2bit MLC.
Can't imagine when we hit 3~4bit.
But do Samsung offer extended warranty for Galaxy S ?
iPhone does that.....
Going from the external sd fix to the internal ext 2 one seems to have improved my battery life
Sent from my GT-I9000 using XDA App
hi.
I want to move some of my apps from /data/app path to /cache/app path and then symlink and then run apps which are physically located on /cache/app . I don't need market downloads.
I have searched for this and followed the processes but i'm unsuccessfull in doing that.
My blade is running CM7 and im pretty sure that it already has the market downloads symlinked to data partition (/cache/download is redirected to /data/local/download). I don't know if this is messing up with what i wanted to do. If this is interfering, then i would like to delete this symlink.
PLEASE help me regarding....
-- how to view a list of available symlinks in the android OS.
-- how to delete a known symlink . (pls give me the exact command to delete the cm7 market downloads to /data/local/download path symlink )
-- how to create the symlink i wanted.
please don't suggest to use the APPS2sd scripts to move apps to sd-ext (i already used them) . And also i'm aware of how to change the partition layout to increase the data partition by flashing appropriate custom gen2 firmware. I just wanted to do the symlinking processes. I want to use all of the internal phone memory for applications since it is faster memory.
Thanks in advance.
My sd card is nearly 3 times as fast as my phone's internal nand. If your sd card is slower then you need a new one. If you repartition then you can move the space being wasted in your cache partition to your data partition where it's easier for you to use.
Anyway, symlinking, http://linux.die.net/man/1/ln
hello wbaw. Your sdcard is which class.? I had a class2 8gb card. When i use it for appliactions the phone becomes slow. Then i should also consider getting a better card.
And which class sdcard is comparable to blade nand writing/reading speed.
nfs1mostwanted said:
hello wbaw. Your sdcard is which class.? I had a class2 8gb card. When i use it for appliactions the phone becomes slow. Then i should also consider getting a better card.
And which class sdcard is comparable to blade nand writing/reading speed.
Click to expand...
Click to collapse
I have a Verbatim class 10 16gb card, I get at least 10MB/sec write & over 14MB/sec read. Blade's internal nand seems to give me about 3.5MB/sec.
So you'd need a class 4 sd card, or a good class 2 to beat it. Class 2 means 2MB/sec writes as a minimum & it's the slowest rated sd card speed you can buy, class 4 is 4MB/sec, class 10 is 10MB/sec minimum.
Maybe trade your sd card in on ebay.
Yes my sdcard's (fat32) writing speed is mostly 2MBps and sometimes it reaches to 4 or 5 MBps. But the reading speed is around 15MBps constantly. I got these results when benchmarking from PC apps.
Will this class2 sdcard affect tasks like video encoding , video decoding .? Since reading speed is 15MBps i hope it wont affect video decoding. I used the WVGA video encoding hack and all i can get from it is around 6-12fps @ around 700Kbps.
And if sdcard was not the limiting factor what will be the maximum writing speed by blade hardware.?
BTW the 2gb class2 sdcard that came with blade was somewhat better (around 4 - 6 MBps writing speed) than the one i got now.
The sd card will always be the limiting factor, rather than the blade for just file transfers.
For video encoding/decoding you're limited by the cpu, whether it's a hardware accelerated video codec or not & the software. The sd card isn't going to have anything to do with video because the cpu can't encode video at 2MB/s & no video that it can decode is anywhere close to 15MB/sec.
Does anyone have any problem with there head unit not taking 64gb cards. Whats the most it will take? SanDisk Ultra Plus 64gb won't work.
32gb maximum. (I noticed In the specs listed on Amazon.c om)
Format it to FAT32. I'm using 128gb Samsung MicroSD.
Yes you MUST format it to FAT32. These boxes (and many android devices) can not read ExFAT Formatted SD Cards. New versions of Windows can't format FAT32 from the regular disk format gui. You have to do this:
cmd (Win+R and type cmd)
diskpartlist disk
select disk 1 (1 must be a number of your flash card)
clean (this command erase all data on selected disk!!!!)
create partition primary
select partition 1
format fs=fat32
Click to expand...
Click to collapse
ALSO, make sure its not fake. The market is totally saturated with people selling fake SD Cards as "64" when they are only 16 or 8, and you only find out when you "fill it up".
http://oeding.com/tutorial-how-to-spot-a-fake-memory-card/
nixfu said:
Yes you MUST format it to FAT32. These boxes (and many android devices) can not read ExFAT Formatted SD Cards. New versions of Windows can't format FAT32 from the regular disk format gui. You have to do this:
ALSO, make sure its not fake. The market is totally saturated with people selling fake SD Cards as "64" when they are only 16 or 8, and you only find out when you "fill it up".
http://oeding.com/tutorial-how-to-spot-a-fake-memory-card/
Click to expand...
Click to collapse
has anyone tried anything bigger in FAT32? 200 or 256?
I'm using 200gb fat 32 for flac. no issues.
I am using a 1tb Extreme SSD sandisk fat32 no issues... I thought for sure there would be the 328gb limit but nope I have 1tb of music(FLAC and SACD). It does take about 1 minute after I start head unit for it to load external storage but vanilla music loads and organizes the tracks instantly. MAKE SURE to eject the external storage in settings>storage before removing if you have it set for high write speeds. You have to do this on Android and windows.
Fubar 2000 skips but vanilla music works flawlessly.
gottahavit said:
I'm using 200gb fat 32 for flac. no issues.
Click to expand...
Click to collapse
great thanks
Spiff198 said:
great thanks
Click to expand...
Click to collapse
BTW it's a U1 card not U3, nothing expensive
Although ASUS has removed the new Marshmallow option to format the external SD Card as adoptable storage, it can easily be done via adb. Just follow this guide:
http://www.modaco.com/news/android/...e-adoptable-storage-on-your-s7-s7-edge-r1632/
The only difference I found was that on mine the drive location numbers were separated by a comma rather than a colon (i.e. 169,64).
Here is a screenshot of my 16GB model with 16GB SD card adopted:
kanagawaben said:
Although ASUS has removed the new Marshmallow option to format the external SD Card as adoptable storage, it can easily be done via adb. Just follow this guide:
http://www.modaco.com/news/android/...e-adoptable-storage-on-your-s7-s7-edge-r1632/
The only difference I found was that on mine the drive location numbers were separated by a comma rather than a colon (i.e. 169,64).
Here is a screenshot of my 16GB model with 16GB SD card adopted:
Click to expand...
Click to collapse
Thanks that's super useful, I will give this a try and let you know if it works for me, I don't know why ASUS removed this feature as its probably the best feature of marshmallow, anyway I think its recommended to have a minimum of a class 10 SD card when using adoptable storage to ensure there's no slowdown when accessing things on the SD card.
xDEV007 said:
Thanks that's super useful, I will give this a try and let you know if it works for me, I don't know why ASUS removed this feature as its probably the best feature of marshmallow, anyway I think its recommended to have a minimum of a class 10 SD card when using adoptable storage to ensure there's no slowdown when accessing things on the SD card.
Click to expand...
Click to collapse
Pretty sure they removed it to keep things simple and because it doesn't work perfectly. Even with a class 10 SD card, it is noticeably slow. I will probably move most, if not all of my apps back to the real internal storage. But that's fine. At least it means I don't have to worry about running out of space, and don't have to manage where podcasts, videos, photos etc are being stored.
kanagawaben said:
Pretty sure they removed it to keep things simple and because it doesn't work perfectly. Even with a class 10 SD card, it is noticeably slow. I will probably move most, if not all of my apps back to the real internal storage. But that's fine. At least it means I don't have to worry about running out of space, and don't have to manage where podcasts, videos, photos etc are being stored.
Click to expand...
Click to collapse
Yeah I guess so and the speed is a big issue, I think you'd probably have to use an UHS SD card to make it work smoothly. But still useful
I agree about the UHS card. And even amongst regular class 10 cards, I understand there is considerable difference. Mine was a cheaper brand and performance is not great, but I'm told that Samsung Evo ones, for example, are better.
Also agree that it is a useful feature. Because it needs some management and user interaction, it's probably wise that makers like Samsung and ASUS have taken it out, as it might cause more harm than good for average users who really need things to just work. However, it's a nice feature for us tech nerd xda types who can handle it appropriately, and it's an easy little hack to enable it so it's all good. And let's be honest, we all enjoy little hidden extra features that we can hacktivate by ourselves!
I swapped out my cheap generic Class 10 SDHC for a better UHS (40 Mbps) Class 10 SDHC one today. The difference is very noticeable - apps on the UHS card open almost instantaneously, unlike on the regular card, where there was a long delay before they opened.
Can someone check the build.prop and tell me what this line says
ro.build.characteristics=
If it says nodscard or similar try changing it to say
ro.build.characteristics=default
And see if that will enable native adoptable storage.
Sent from my ASUS_Z00A using Tapatalk
eoghan2t7 said:
Can someone check the build.prop and tell me what this line says
ro.build.characteristics=
If it says nodscard or similar try changing it to say
ro.build.characteristics=default
And see if that will enable native adoptable storage.
Sent from my ASUS_Z00A using Tapatalk
Click to expand...
Click to collapse
Code:
adb shell getprop | grep ro.build.characteristics
[ro.build.characteristics]: [nosdcard]
kanagawaben said:
Because it needs some management and user interaction, it's probably wise that makers like Samsung and ASUS have taken it out, as it might cause more harm than good for average users who really need things to just work.
Click to expand...
Click to collapse
You're getting it all wrong. It's all about profit. If the manufacturers leave in the option to adopt external storage, knowledgeable consumers will have no reason to spend more $$ and buy the manufacturers' devices with larger internal memory. And yes, it also saves them a lot of support issues with people complaining their phone is slow, when it turns out they are using slow SD cards.
So, it's nice that Google added that feature, but ultimately I believe very few of the really big / mainstream manufacturers will actually not disable it. As was mentioned in many articles around the 'net, this feature is really meant for AndroidOne devices, cheap devices with very little internal memory.
So, could anyone post Sequential Read / Write and Random Read / Write speeds that would allow SD card to match or get close enough to ZenFone 2's internal storage?
It's really hard to choose the right SD card when every article in the Internet literally starts and ends with "class 6 card is worse than class 10 card but they are both ok for Full HD video derpaderp..." I KNOW it's OK for HD-video but that's not THE ONLY THING I am going to do with my SMART-freakin'-phone! We are not 5 years old, we can understand a bit more complicated technical specs than that.
Zhabishe said:
So, could anyone post Sequential Read / Write and Random Read / Write speeds that would allow SD card to match or get close enough to ZenFone 2's internal storage?
Click to expand...
Click to collapse
You'll never get close to internal speeds. Even with the fastest cards.
Sent from my ASUS_Z00A using Tapatalk
kenbo111 said:
You'll never get close to internal speeds. Even with the fastest cards.
Click to expand...
Click to collapse
Well, if we can trust this article, http://www.anandtech.com/show/9251/the-asus-zenfone-2-review/6 , it doesn't seem like completely unreacheble. But it's hard to compare results from different testing software.
Btw, I don't need something extremely close, all I want is to get apps to launch from SD card within reasonable time.
Non-UHS Class 10 card was useless, but now that I am using the 40 Mbps UHS card, it's not that bad. Apps open reasonably fast and hasn't really behaved any differently. And this was a cheap 16GB card from a Japanese maker called Greenhouse that I picked up on sale for the equivalent of about $7 .
I was able to set up the storage as adoptable on my device, but no apps allow the option to move to the SD card. I'm guessing if I want this to happen I need to uninstall/reinstall the apps, since they go to the most available space by default?
Edit: what about copying over data to store externally on the card? Since it's formatted as internal, of course it doesn't show the card in file explorer apps or in Windows. I've got 28 gigs of media files to copy over from the old card and I'm not sure where to put it.
Hallo.
I've tried to enable adoptable storage and it's success. But after 1 month, my sd card has been crash.
The problem is my (real) internal storage now only can run the app, but can't use to save file, music, video, etc. Even I can't use my camera to take photo, bcz the (real) internal storage is not available.
It's bcz when I enable the adoptable storage, it's separated the (real) internal storage only for save data app, and internal storage (from sdcard) for save data app and also file like music, photo, video, etc.
How to enable my (real) internal storage to save data file like usually?
Plz anyone can help? I really appreciate it.
android 7.1.1 ??
Will this work on zenfone 4 max with android 7.1.1? For ADB tools, I wasn't sure what to answer (Y or N) on some of the installation questions. I said N to system wide and N to install drivers. The instructions above seemed ambiguous that you could say yes or no to skip steps, but not sure if that's why it didn't work for me or if this tutorial was for older phone software. Also I have windows 10 and power shell window not command window. Any help much appreciated!
Hi All,
I would like to know from You if you there's a way to improve the Halo Keyboard on Lenovo Yoga Book Windows edition, as well, the SD Card reader.
During these weeks, I've noticed two annoying issues.
1. Halo Keyboard: the touch mouse pad sometime goes off
2. SD Card Reader: I've installed an SD 64Gb card to put in place only documents files, I've tried several combination of file system format: NTFS, FAT32 and XFAT but in all cases, the access on files it's really slow, sometime freeze the "computer", and sometime the file cannot be opened due to several code error like time out expired and so on. The cards tested are both MicroSDXC kingstone and Trascend Premium 300x UHS-I Grade 1, Class 10.
3. there's a way to improve and speed up CPU?
There's lot of discussions on Lenovo Forum but no relevant solution or fix.
Thanks in advance,
all my best to all
Trillian said:
1. Halo Keyboard: the touch mouse pad sometime goes off
Click to expand...
Click to collapse
It's a feature. Not a bug. The mouse pad deactivates while you are typing to avoid unwanted mouse movements. Just tap the white circle inside the touch pad to revive it...
There is an App to modify your Touchpad area https://forum.xda-developers.com/yoga-book/themes/yoga-book-touch-pad-setting-application-t3569836
Trillian said:
2. SD Card Reader: I've installed an SD 64Gb card to put in place only documents files, I've tried several combination of file system format: NTFS, FAT32 and XFAT but in all cases, the access on files it's really slow, sometime freeze the "computer", and sometime the file cannot be opened due to several code error like time out expired and so on. The cards tested are both MicroSDXC kingstone and Trascend Premium 300x UHS-I Grade 1, Class 10.
Click to expand...
Click to collapse
UHS Class 1 is probably $5 saved at the wrong place as it only supports 10MBs
I have a UHS 3 V60 and it's doing pretty awesome... I mean a SD Card will never be able to compete with a SSD harddisk. Therefore never ever install Applications on it. Use your drive C: for Apps and the SD just for the Data
Trillian said:
3. there's a way to improve and speed up CPU?
Click to expand...
Click to collapse
You can't overclock Atom's nor does the BIOS allow changes of the DDR Bus Speed.
There are several settings and tweaks you could change under Windows to improve your general impression. But understand this would be to extensive to list here. There are endless of Websites which explain you how to tweak Windows.
Thanks a lot @jamespmi, I'll do it some test right now.
You provide me a good input and suggestion, I was aware about the Halo function but I was not aware about the program mentioned in your post.
Thx again