I was given one of these cards as a gift and the first one shipped failed to format but the replacement came in today and works great in my Galaxy Tab 7 Plus. Just thought someone may want to know. The formatted storage space is 59.4gb.
ZOMG. 64gb works with the GTab+? that's legit! how much did you pay for it?
diospada11 said:
ZOMG. 64gb works with the GTab+? that's legit! how much did you pay for it?
Click to expand...
Click to collapse
It was a gift but Amazon had it for $149.00 at the time.
You are so lucky! If it were about 75 bucks I would actually consider getting of of these...
I'm planning to buy this card,so i want to know its actually transfer speed. Can you test it on PC using the software Atto Disk Benchmark ?
Since they started doing this "internal" and "external" memory card with our devices, I'm not too worried about swapping the sd card in and out anymore as it doesn't affect the way the device works as much as it used to.
I have a 32GB card each for my tablet and phone that pretty much stay there all the time. What i did instead for extra capacity was collect all the old 16GB cards and store them in this sd-card holder that fits perfectly in this black aluminum business card holder. I bought the sd-card organizer and business card holder from ebay.
That's 11 (one in the microSD to SD adapter) 16GB cards for 176GB total. I mainly use this system to backup and transfer pictures from my bigger SD cards when I'm out shooting photos (using the 30-Pin to SD adapter).
http://www.amazon.co.uk/gp/offer-li...l?ie=UTF8&coliid=&me=&qid=&sr=&seller=&colid=
was £95 last week.
down to £77
nrage23 said:
I was given one of these cards as a gift and the first one shipped failed to format but the replacement came in today and works great in my Galaxy Tab 7 Plus. Just thought someone may want to know. The formatted storage space is 59.4gb.
Click to expand...
Click to collapse
What did you use to format the card? i put this in my G Tab+ and when i click mount sd, it gives me an error icon in the notification area. when i tap that and click format, it says it is blank or has an unsupported file system. Any help would be appreciated
*Edit* - I've been having trouble finding a utility I trust to format the card as FAT32. On my windows 7 64 bit machine, the native right click format menu doesnt even give me the option of doing FAT32, just exFAT or NTFS (both useless for the application I need). Even the official SD Formatter tool didnt give any choice in the filesystem to format to.
After seeing this article, I decided as a last ditch effort to use my Vibrant to see if i could get it to format as FAT32 since the article mentioned it working in the Galaxy S. This worked and i now have 59.4GB free to exploit on my G Tab+ (However, I did have to use the file write permissions fix to get things to copy between internal and external memory within Astro). Just wanted to post for others that were having trouble finding a way to format this card as FAT32. My assumption is any of those confirmed devices will format it.
Hello all,
I have a few questions regarding the T699...
Just got one off eBay, and I'm noticing my 64 GB microSD card is causing problems. Not sure if maybe the phone only supports 32GB and I have a problem, or what? I've noticed that when I try to install things via CWM it has issues off/on. It'll go partially through an install and then complain that the file is bad -- CyanogenMod (the latest release from this month that was marked SNAPSHOT) was also constantly mounting/unmounting the SD Card back and forth. I'm thinking it could be the card, but I'm not sure.
CM was also crashing on Trebuchet and a few other things... so I kind of convinced myself it was that.
It *could* be the phone -- but I'm not sure -- I just wanted to ask here and hopefully get some answers beforehand.
Sorry, I hate to double post, but I feel this is important and worth double-posting...
So, I've noticed that it doesn't have external or internal SD card slots right. The internal SD card seems to have another folder, "0" that it creates that it accesses, and the external SD card slot isn't working/showing up. Seems like this all happened with Jellybean...
Any thoughts/changes/adjustments?
The relay has a micro-SDHC card slot, which only supports up to 32GB. Apparently there's hypothetical backwards compatibility from SDXC (64GB and up) to SDHC (https://en.wikipedia.org/wiki/Secure_Digital#SDXC It's on the internet, it must be true...), but I can't say whether the Relay supports this, as I've never tried it. Considering your experience, probably not.
Regarding internal vs. external, the internal sd has always been the primary on the relay. The internal sd seems like it's supposed to be mounted as the folder 0, and it's also mounted in a few other spots (/sdcard, /mnt/sdcard, /storage/sdcard0). I don't remember when I first noticed the 0 folder showing up instead of just /mnt/sdcard, but it still seems to work just as well. The external, if it worked (which it does for me), would be mounted as /storage/sdcard1 /mnt/extSdCard and /extSdCard (it doesn't seem to create a folder just named "1" anywhere).
rpimonitrbtch said:
The relay has a micro-SDHC card slot, which only supports up to 32GB. Apparently there's hypothetical backwards compatibility from SDXC (64GB and up) to SDHC (https://en.wikipedia.org/wiki/Secure_Digital#SDXC It's on the internet, it must be true...), but I can't say whether the Relay supports this, as I've never tried it. Considering your experience, probably not.
Regarding internal vs. external, the internal sd has always been the primary on the relay. The internal sd seems like it's supposed to be mounted as the folder 0, and it's also mounted in a few other spots (/sdcard, /mnt/sdcard, /storage/sdcard0). I don't remember when I first noticed the 0 folder showing up instead of just /mnt/sdcard, but it still seems to work just as well. The external, if it worked (which it does for me), would be mounted as /storage/sdcard1 /mnt/extSdCard and /extSdCard (it doesn't seem to create a folder just named "1" anywhere).
Click to expand...
Click to collapse
Other posters on the web (from what I've seen) said that the Relay supports 64GB... and have successfully done it with my card, I believe. Maybe I should try a 32GB or smaller and see if it works without any issues? I have a Captivate Glide, which is an older phone, and it supported it just fine. But I think there is something weird going on with how things are being mounted in the system...
I had no luck with my Sandisk 64 gig card. It lives in my laptop now.
It's a good card and it's not a fake. I'm savvy enough to use good hardware.
I gave the 64 gig a spin with stock and CM ICS and JB. No luck.
It may work on some devices--provided you get a genuine card with a quick transfer rate. But, it sure doesn't work for mine.
My advice is to backup all your data and keep a 32 gig card handy. My 64 gig eventually ended up being one big LOST folder.
It works great in my laptop, though...
orange808 said:
I had no luck with my Sandisk 64 gig card. It lives in my laptop now.
It's a good card and it's not a fake. I'm savvy enough to use good hardware.
I gave the 64 gig a spin with stock and CM ICS and JB. No luck.
It may work on some devices--provided you get a genuine card with a quick transfer rate. But, it sure doesn't work for mine.
My advice is to backup all your data and keep a 32 gig card handy. My 64 gig eventually ended up being one big LOST folder.
It works great in my laptop, though...
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Click to collapse
Wow. I google'd and found a few reports of folks who had them working. And mine worked great in Cappy Glide.
I did find a Class 6 16GB from my Sammy Epic and that seems to work great and without any issues. I guess that's where to go from here!
terinfire said:
Wow. I google'd and found a few reports of folks who had them working. And mine worked great in Cappy Glide.
I did find a Class 6 16GB from my Sammy Epic and that seems to work great and without any issues. I guess that's where to go from here!
Click to expand...
Click to collapse
My 64GB SanDisk MicroSD XC1 works really well with my Relay.
Magamo said:
My 64GB SanDisk MicroSD XC1 works really well with my Relay.
Click to expand...
Click to collapse
How much space are you using on it? Some folks are suggesting it only works/supports 32GB -- but will DISPLAY the full size. Have you bothered to go over 32GB in data on it? Supposedly THAT is what causes it to have issues -- also what ROM are you on?
terinfire said:
How much space are you using on it? Some folks are suggesting it only works/supports 32GB -- but will DISPLAY the full size. Have you bothered to go over 32GB in data on it? Supposedly THAT is what causes it to have issues -- also what ROM are you on?
Click to expand...
Click to collapse
I'm on a CM10.2 custom image, and no, I don't think I've yet gone above 32GB on it. I've had over 20 on it before, though.
Magamo said:
I'm on a CM10.2 custom image, and no, I don't think I've yet gone above 32GB on it. I've had over 20 on it before, though.
Click to expand...
Click to collapse
As a follow up, I just filled up my SD card twice, no problems.
For me, files and folders mysteriously disappeared (wished away to the LOST.DIR "cornfield"..) over the course of weeks... So, I wouldn't expect to immediately experience anything out of the ordinary.. Rebooting the device often seems to accelerate the process..
Anyhow, if it works for your device that's a great thing. Additional storage is always welcome.
I'm wondering if you're having the same problem as I had on the one I returned. Did yours randomly reboot? Files went to zero byte size?
It happened on mine, tried two cards, a G-Skill 8GB and a Kingmax 32GB. Both cards worked fine on other phones.
I got a 256GB SD-card recently. Only after purchase I bothered to check the phone specs, which clearly states that 64GB is max supported card size. Stupid, I know.
The phone sees the 256gb card, is able to read-write to it, but otherwise acts weird. Data amount saved to the card changes on every reboot, number of songs downloaded to card varies on every reboot. Either the card is faulty or its simply too big.
Noob that I am, couple of questions:
1) provided that the size is the issue, is using multiple partitions (eg split the capacity in two 128GB parts) worth trying?
2) are there differences on various ROMs on how they handle large capacity SD-cards? Currently running ResurrectionRemix 5.7.4-20161113 (Android 6.0.1)
Thanx and have a good one
SD cards support is more a matter of hardware than software. Otherwise even 2010 smartphones could run 256 GB SD cards.
I would say the card is faulty, since the phone wouldn't recognize it if it were to not supported. But don't take my word for it.
The reason why the S4 has the max capacity listed at 64 is because, at the time of its release, the biggest card was 64 GB.
256 gigs is way too high like Ow said.
Go with a type 11 64 gig memory card, I'm using a 32 gig type 1 and have to deal with errors constantly.
Partition it 4 x 64Gb using Minitool Partition Wizard.
Mungozandler said:
I got a 256GB SD-card recently. Only after purchase I bothered to check the phone specs, which clearly states that 64GB is max supported card size. Stupid, I know.
The phone sees the 256gb card, is able to read-write to it, but otherwise acts weird. Data amount saved to the card changes on every reboot, number of songs downloaded to card varies on every reboot. Either the card is faulty or its simply too big.
Noob that I am, couple of questions:
1) provided that the size is the issue, is using multiple partitions (eg split the capacity in two 128GB parts) worth trying?
2) are there differences on various ROMs on how they handle large capacity SD-cards? Currently running ResurrectionRemix 5.7.4-20161113 (Android 6.0.1)
Thanx and have a good one
Click to expand...
Click to collapse
It's likely a software/ROM issue as a friend of mine with a Note 2 has a 256GB MicroSD that runs perfectly.
The SDHX standard on the S4 can support MicroSD cards of up to 2TB theoretically.
Sent from my Sony Xperia X F5121 using Tapatalk
Kernel issue?
Try a kernel that supports exfat. I have one on an S3 mini running CM 12.1, and I am using a 128gb microsd with no problems.
Can anybody confirm a 256GB card works? It should since my 32GB works as exFAT and if the last post says 128GB is also working, that would suggest all sdXC would work, no?
I got a 128gb (micro sdxc samsung evo plus) on my galaxy S4 I9505 and runs like charm.
I'm sure if it was 256gb would run with no problems as well.
So the problem is not the card capacity, that's for sure.
Moving the intent of a few posts on LineageOS thread to here.
rb1979 said:
Hi everyone,
Some of you reported that SD Card stopped working. This happened to me too today after about 20 hours after the latest update. The case with me is it doesn't fix itself even after a restart. I'm kind of stuck, whatever I want to do with the SD Card it wants me format it. I always had it as internal storage with apps and other things there. I have the the backup from the before the update. Will that fix if I restore it? Just want to mention that I update every week and never missed one. I had very minor issues up until now. Week in and week out everything has been fine and I started using the rom with the first release, all clean, full format and then weekly over the air updates every single week.
If anybody know any solution please let me know, if nothing works or I don't hear anything I'll probably try the backup restoration. BTW, to be specific about SD card no working I always get two notifications, one is "Unsupported SanDisk SD card" and the other is "SanDisk SD card missing"
Thank you
Click to expand...
Click to collapse
KrisM22 said:
Use a card brand other than sandisk and size 32GB or less.
Click to expand...
Click to collapse
rb1979 said:
Thank you for you help, I really appreciate it. The problem I see, right or wrong, is that I had this card for a year with no issues, first under stock rom, then under CM, and now under LineageOS up until the latest update with no issues at all. So it's just hard for me to take the card as the problem. Especially after seeing other people reporting it too lately. Do you have more information than just that? Meaning LineageOS and won't ever get along with sandisk or size larger than 32GB because of some external hardware limitation or something like that. Or this is just general knowledge what works best with LineageOS? In the first case I can think about case I can go and invest into a new card but in the second case I can just wait it out until codebase improves. It would good to know more so I can make better decisions.
Thanks for your help again.
Click to expand...
Click to collapse
KrisM22 said:
In my experience, most folks presenting SDcard problems have sandisk. I personally have had problems with sandisk that has led me to avoid them. I prefer samsung. There are many others. edit currently using a pny U3 32GB, but it's an old one and only does 56/29MBs R/W.
Click to expand...
Click to collapse
adityak1303 said:
+1 @KrisM22. I agree that almost all the users that state that there's a problem with their SD card were using a SanDisk SD card including myself. @rb1979, if you really think that your card isn't faulty, then try using it in some other phone. If you face the same errors then your card is faulty. If it works fine on the other phone, only then can it be considered as a problem with the ROM.
Click to expand...
Click to collapse
rb1979 said:
Thanks both of you, I'll do some testing around and get back to you with my findings.
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Click to collapse
KrisM22 said:
I just ordered one of these because I want to test the 64GB thing as it keeps coming up.
Samsung 64GB 100MB/s (U3) MicroSDXC EVO Select Memory Card with Adapter (MB-ME64GA/AM) - $23 + some silly $3 thing to get free shipping over $25. There are faster ones out there but I'm a cheapskate and don't use it enough to justify it.
Click to expand...
Click to collapse
That's most of it - then it goes verbose and wobbly.
I welcome any and all comments about SDcards!
There is no OT here but remember the XDA rules and try to be nice to folks. You can learn without trying to control others' behaviour.
No need to pretend you are TD. (allusion to Alice in Wonderland - Top Doormouse)
Thanks for creating this thread. There are surprisingly few other recent threads that discuss this topic on XDA apart from the one I've previously linked to (https://forum.xda-developers.com/android/help/micro-sd-write-access-format-exfat-t3358275). Also, I'm bringing over the well informed SD related comments that you left behind.
---------------------------
I've got to push back on the apriori assumption that these are specifically Sandisk brand card issues without knowing the specific details of the issues and seeing actual logs, and also without knowing the history of the individual cards in question (details of every device it was connected to and how it was connected, what OS and what file management methods were used, and how full the card typically is, and how frequently it might be disconnected in the middle of a file operations, among other things).
We must be mindful of the fact that the majority of SD cards in circulation are Sandisk cards which means that the majority of reported problems will be on Sandisk cards but this does not mean that the Sandisk cards are experiencing proportionately more issues than other brands. I don't doubt individual experiences, but it they may not speak to a larger picture. For example: Having supported large systems (>300 devices) running Linux directly from SD cards I did not see more problems with Sandisk cards than others. We've not seen enough evidence here to declare that this this is a Sandisk problem.
rb1979 said:
...I had this card for a year with no issues, first under stock rom, then under CM, and now under LineageOS up until the latest update with no issues at all.So it's just hard for me to take the card as the problem
Click to expand...
Click to collapse
The fact that a card has been used for a long time under different circumstances does not support a logical argument that the problem is in the ROM, in fact that supports the logical argument that the problem is with the card.
adityak1303 said:
....if you really think that your card isn't faulty, then try using it in some other phone. If you face the same errors then your card is faulty. If it works fine on the other phone, only then can it be considered as a problem with the ROM.
Click to expand...
Click to collapse
Good advise since, if the cards is having problems it should bring the problems to the other devices. Testing a different card in the first device on which the problem was noticed is also a good test.
--------------------------
Here is some supplemental information specific to Sandisk SD cards' built in data protection on cards experiencing failure. https://forum.xda-developers.com/android/help/micro-sd-write-access-format-exfat-t3358275. To summarize what is there: An SD card may begin to fail unknown to us, and then when the built in data protection is invoked it "breaks" the card with a dirty bit at beginning of drive so it cannot be written to or formatted but still allows us to copy data. The symoptoms when that data protection is invoked are similar to those bing reported by people who can no longer mount the card in Android devices (Android devices require read and write access to mount the card, unlike when the card is access via card reader on computer).
Just an update. I tried to format the card as portable storage (after this failure as internal and being burned I have hard time trusting it now) but it fails. I didn't do any testing with other phones just went straight for format. I might just buy another card. I think the phone specs say it's 32 GB max, is it still the case with different OS or not (meaning it was due to software not hardware) if I could get something higher than 32 (the current broken one is 32) I would go for it.
Thanks
rb1979 said:
Just an update. I tried to format the card as portable storage (after this failure as internal and being burned I have hard time trusting it now) but it fails. I didn't do any testing with other phones just went straight for format. I might just buy another card. I think the phone specs say it's 32 GB max, is it still the case with different OS or not (meaning it was due to software not hardware) if I could get something higher than 32 (the current broken one is 32) I would go for it.
Thanks
Click to expand...
Click to collapse
I believe after you use it as internal, and then try to use it as external, you first have to write an MBR on it and a partition formatted FAT32. i use a bootable stand-alone GPARTED to do that.
http://gparted.org/
Moto says it's limit is 32GB. Folks have, I believe, used much bigger cards on it. Don't know what is the limiting factor - be it software (ROM) , hardware, or licensing (exfat for Microsoft). I have ordered a 64GB Sammy which I should get in 1/2 week so I can test. Course I wouldn't be doing exactly what you would be doing so the test would only show that the G3 could read/write to it. I will only use it as external storage. I don't really "need" 64GB but it will allow me to be a bit more sloppy vis a vis nandroid backups.
It could be that after you format yours, that it will suddenly work just fine. Then again I just had a thumb drive go belly-up from I/O errors - once in a great while, it happens.
KrisM22 said:
... Moto says it's limit is 32GB. Folks have, I believe, used much bigger cards on it. Don't know what is the limiting factor .
Click to expand...
Click to collapse
I've got a 128gb in my Moto G (3rd - XT1540 2GB), and I have used the card for a long time. It works just fine for me, and the space is obviously fantastic to have. Every now and then (every few months or so, I'd say - maybe 3 times in the 18 months I've had it), it does become corrupted, though, and I get those same error messages. A backup, wipe/re-format, and restore, and I put it right back in my phone and it works just fine again. Seems like that's happened in other devices, though, too.
The card is a SanDisk Ultra SL128 (Class 10/UHS-1, man'd Jan 2016). I've only ever used it for external storage, never adopted, and I've only ever formatted the card as FAT32, using my PC. I'm running stock Android 6.0 24.24.1 at the moment, with TWRP.
beachfl said:
I've got a 128gb in my Moto G (3rd - XT1540 2GB), and I have used the card for a long time. It works just fine for me, and the space is obviously fantastic to have. Every now and then (every few months or so, I'd say - maybe 3 times in the 18 months I've had it), it does become corrupted, though, and I get those same error messages. A backup, wipe/re-format, and restore, and I put it right back in my phone and it works just fine again. Seems like that's happened in other devices, though, too.
The card is a SanDisk Ultra SL128 (Class 10/UHS-1, man'd Jan 2016). I've only ever used it for external storage, never adopted, and I've only ever formatted the card as FAT32, using my PC. I'm running stock Android 6.0 24.24.1 at the moment, with TWRP.
Click to expand...
Click to collapse
Thanks - Becoming corrupted every 6 months seems excessive, but with heavy use...? So what do you use it for? Also it sounds like you are using something other than the phone to format it...?
At least you are ready for it and just re-format it!
beachfl said:
I've got a 128gb in my Moto G (3rd - XT1540 2GB), and I have used the card for a long time. It works just fine for me, and the space is obviously fantastic to have. Every now and then (every few months or so, I'd say - maybe 3 times in the 18 months I've had it), it does become corrupted, though, and I get those same error messages. A backup, wipe/re-format, and restore, and I put it right back in my phone and it works just fine again. Seems like that's happened in other devices, though, too.
The card is a SanDisk Ultra SL128 (Class 10/UHS-1, man'd Jan 2016). I've only ever used it for external storage, never adopted, and I've only ever formatted the card as FAT32, using my PC. I'm running stock Android 6.0 24.24.1 at the moment, with TWRP.
Click to expand...
Click to collapse
That may not be drive corruption but rather a corrupted file or files. If it is localize drive corruption it may still be there without having any impact until some data is written to that part of the drive. Unlike platter based hard drives, when these drives actually start to fail they may invoke a built in data protection (dirty bit) which resembles being locked in read only mode preventing the drive from being formatted which is obviously not your case. Have you ever done a sector scan of the drive, eg chkdsk <driveletter> /f /r or done a full format (as opposed to quick format)? Either of those things may flush out localized damage and the scan might fix it but they would take a long time.
KrisM22 said:
Thanks - Becoming corrupted every 6 months seems excessive, but with heavy use...? So what do you use it for? Also it sounds like you are using something other than the phone to format it...?
At least you are ready for it and just re-format it!
Click to expand...
Click to collapse
Yeah I guess it is kinda a small PITA lol. Could just be from me starting and cancelling or moving too many things at once, I don't know.
I've never actually come close to needing all that space to TBH. I could probably do just fine with a 64, but it's nice to know I could record or store hours of HD video, for example, if I need it. I got nearly 30 gigs of music on it. I keep tv and movies on there, too, in case I get caught bored somewhere. Full Nandroid and Titanium backups are on there, as well.
I use a microSD adapter and a small (76 kb) utility for Windows called FAT32Format (Ridgecorp).
---------- Post added at 22:00 ---------- Previous post was at 21:45 ----------
IronTechmonkey said:
That may not be drive corruption but rather a corrupted file or files. If it is localize drive corruption it may still be there without having any impact until some data is written to that part of the drive. Unlike platter based hard drives, when these drives actually start to fail they may invoke a built in data protection (dirty bit) which resembles being locked in read only mode preventing the drive from being formatted which is obviously not your case. Have you ever done a sector scan of the drive, eg chkdsk <driveletter> /f /r or done a full format (as opposed to quick format)? Either of those things may flush out localized damage and the scan might fix it but they would take a long time.
Click to expand...
Click to collapse
I've had that problem before, too, but not on the 128 I have in my phone now. That is very frustrating. One of my 32 gb cards suddenly went into "read-only" mode as you describe, and nothing I can do will get it useable again. All the files are still readable from it (except the part of one huge video file that is on the bad sector that seems to have caused the problem).
So right, my 128 card doesn't have that problem, and seems to be corrupted files, as you say, not the drive itself. I do actually do what you talk about - when I do find I have to re-do the 128 sd card in my phone, I run a Windows chkdsk /r before I re-format it, and a chkdsk /f afterward, as a check. The chkdsk /r does take quite a while, yeah .. a few hours.
Cheers
beachfl said:
Yeah I guess it is kinda a small PITA lol. Could just be from me starting and cancelling or moving too many things at once, I don't know.
I've never actually come close to needing all that space to TBH. I could probably do just fine with a 64, but it's nice to know I could record or store hours of HD video, for example, if I need it. I got nearly 30 gigs of music on it. I keep tv and movies on there, too, in case I get caught bored somewhere. Full Nandroid and Titanium backups are on there, as well.
I use a microSD adapter and a small (76 kb) utility for Windows called FAT32Format (Ridgecorp).
---------- Post added at 22:00 ---------- Previous post was at 21:45 ----------
I've had that problem before, too, but not on the 128 I have in my phone now. That is very frustrating. One of my 32 gb cards suddenly went into "read-only" mode as you describe, and nothing I can do will get it useable again. All the files are still readable from it (except the part of one huge video file that is on the bad sector that seems to have caused the problem).
So right, my 128 card doesn't have that problem, and seems to be corrupted files, as you say, not the drive itself. I do actually do what you talk about - when I do find I have to re-do the 128 sd card in my phone, I run a Windows chkdsk /r before I re-format it, and a chkdsk /f afterward, as a check. The chkdsk /r does take quite a while, yeah .. a few hours.
Cheers
Click to expand...
Click to collapse
Great that you're running chkdsk on it. May be caused if you cancel or something happens in the middle of a move. Only other thing I could suggest is to do your format on the phone itself, after you've done everything else on the PC. Don't know if that would make a difference. Shouldn't but I've run across vy experienced folks saying to do that. But... Yeah you've got me hankering to put a 128GB on it...
edit: for read only cards before you trash them I would run them by gparted just to see if re-creating the MBR and partition would change its mind. I have successfully done that with thumb drives but not with cards/adapter/reader.
KrisM22 said:
Great that you're running chkdsk on it..
edit: for read only cards before you trash them I would run them by gparted just to see if re-creating the MBR and partition would change its mind. I have successfully done that with thumb drives but not with cards/adapter/reader.
Click to expand...
Click to collapse
Yeah, thanks for reminding me about fixing the errors, IronTechmonkey. It's kinda an important step I forgot to mention.
I not sure I have the bad card still. I didn't think about GParted, should have. I tried Paragon, among other things, but to no avail.
What speeds are folks getting from a U3 SDE card? I bought what I thought was a 100/60MB/s card and it does about what my old PNY card did - R=40-50, W=34-40MB/s. Is the phone the limiting factor or did I get a bum card?
KrisM22 said:
What speeds are folks getting from a U3 SDE card? I bought what I thought was a 100/60MB/s card and it does about what my old PNY card did - R=40-50, W=34-40MB/s. Is the phone the limiting factor or did I get a bum card?
Click to expand...
Click to collapse
AFAIK the the phone hardware/OS is unlikely to meet the advertised speeds of the cards. Likewise and perhaps more so for USB 2.0 ports and anything using MTP.
I dont know how this compares but for what it is worth: With a Sandisk Utra SDHC (Class 10 - Video, Ultra High Speed Class 1 - whatever that jargon means) touting 80 MB/s read speeds and 40 MB/s* write speeds; the read speeds did consistently approach the rating (getting hot enough to scorch the logo) and the wite speed occasional did. Another factor is the size of files being copied, larger quantities of smaller files taking more time per MB, unless using some dedicated test utility I've never actually done a test of SD r/w speeds on the device. What are you using to measure those?
* In re write speed ratings: Digging into the small print of the specifications may reveal that the manufacturer uses different size cards each for the reed and write speed ratings, effectively padding the write speeds by citing test results from smaller capacity cards.
IronTechmonkey said:
AFAIK the the phone hardware/OS is unlikely to meet the advertised speeds of the cards. Likewise and perhaps more so for USB 2.0 ports and anything using MTP.
I dont know how this compares but for what it is worth: With a Sandisk Utra SDHC (Class 10 - Video, Ultra High Speed Class 1 - whatever that jargon means) touting 80 MB/s read speeds and 40 MB/s* write speeds; the read speeds did consistently approach the rating (getting hot enough to scorch the logo) and the wite speed occasional did. Another factor is the size of files being copied, larger quantities of smaller files taking more time per MB, unless using some dedicated test utility I've never actually done a test of SD r/w speeds on the device. What are you using to measure those?
* In re write speed ratings: Digging into the small print of the specifications may reveal that the manufacture uses different size cards each for the reed and write speed ratings, effectively padding the write speeds by citing test results from smaller capacity cards.
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Thanks.
Interesting - so you were testing it on windows (?) I did test them on linux and got W=74 on the PNY and 77MBs on the Samsung. That's through a USB3 cardreader.
On the phone I used A1 SD Bench, SD card test, and disk speed test.
Off to try windows...
I was just going to boot up a WinPE and test it there. What prog did you use to test it?
Yes, both of these cards test at about R=81 , W=66.
KrisM22 said:
Thanks.
Interesting - so you were testing it on windows (?) I did test them on linux and got W=74 on the PNY and 77MBs on the Samsung. That's through a USB3 cardreader.
On the phone I used A1 SD Bench, SD card test, and disk speed test.
Off to try windows...
I was just going to boot up a WinPE and test it there. What prog did you use to test it?
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Yes, Windows 7, which reports file data transfer speeds in the copy process window so I did not use a utility. I've done this enough times in geneal, and a few times specifically with large files and a stopwatch, so I know the speed in the file copy window is relatively accurate (for single large files). The speeds you get on linux seem reasonable. I'll test A1 SD Bench on Osprey when I have a chance. Thanks.
---------- Post added at 11:09 PM ---------- Previous post was at 11:08 PM ----------
KrisM22 said:
Yes, both of these cards test at about R=81 , W=66.
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Also seemingly reasonable.
My card seem to be working just fine on my Lineage OS. I rebooted by device and now it says it's corrupted. Is there any way out? Will I be able to get my data back?
jay.bhadra1995 said:
My card seem to be working just fine on my Lineage OS. I rebooted by device and now it says it's corrupted. Is there any way out? Will I be able to get my data back?
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My suggestion would be to copy whatever you can off it and re-format it asap. If you can't read it via phone, try PC.
EDIT: I am assuming you are using it as external. If you are using it as internal, I believe you have lost everything. I know of nothing that can read it. GPARTED can only re-add an MBR and a partition and make it usable again, but all data is lost.
KrisM22 said:
My suggestion would be to copy whatever you can off it and re-format it asap. If you can't read it via phone, try PC.
EDIT: I am assuming you are using it as external. If you are using it as internal, I believe you have lost everything. I know of nothing that can read it. GPARTED can only re-add an MBR and a partition and make it usable again, but all data is lost.
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Yeah. I copied everything and made a backup. Luckily I use it only as a storage device and not an internal drive for apps. But how do I re-format it? I tried using the format option that my phone gives me but to no avail.
jay.bhadra1995 said:
Yeah. I copied everything and made a backup. Luckily I use it only as a storage device and not an internal drive for apps. But how do I re-format it? I tried using the format option that my phone gives me but to no avail.
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Do you have a little card reader so you can plug it into your PC?
KrisM22 said:
Do you have a little card reader so you can plug it into your PC?
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No. Sadly I don't. Is there no other way round to format it?
Folks,
Those of you who holds 512GB or 400GB microsd card could you try if your X2 or K30 supports it?
Official xiaomi spec stated only can support up to 256GB but I am asking for real life actual experience here. Thinking of purchasing either one of these larger storage size cards so that I can take a few dozen albums of DSD files and 24bit flac files on the go. Especially useful for longer duration hiking trips up the mountains.
Memory cards work irrespective of the capacity specified by the manufacturer, You can use any capacity and it will work without any issue plus you can use 2 TB WD hard disk as well and it will work too
Hamza417 said:
Memory cards work irrespective of the capacity specified by the manufacturer, You can use any capacity and it will work without any issue plus you can use 2 TB WD hard disk as well and it will work too
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I don't feel that's true, the size depends on the file system. I guess if you decide not to change the file system, the OS will always read 256 GB only, max to max. Or maybe could read none
Hamza417 said:
Memory cards work irrespective of the capacity specified by the manufacturer, You can use any capacity and it will work without any issue plus you can use 2 TB WD hard disk as well and it will work too
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Hi, thanks for replying. For OTG connecting 2TB HDD for sure that will work as long as OTG function is enabled within developer setting provided drive is formatted in exFAT and not NTFS. However, we are talking about entirely different slot altogether. USB Type C slot VS microSDXC slot.
For K30, it seemed xiaomi has somehow limited the capacity of the slot to only max out at 256GB at the firmware level for some strange unknown intent according to some comments on chinese forums. Hence I am asking for those who already have a 400/512GB card at hand to help try out and confirm if this is true to remove any guessing work. Thanks！
F.LUX 56. said:
I don't feel that's true, the size depends on the file system. I guess if you decide not to change the file system, the OS will always read 256 GB only, max to max. Or maybe could read none
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Yep, indeed file system plays a part. So let's assume the microsd card is formatted in exfat whether is it readable by K30 running MIUI 12?
Don't need the microsd card to be "formatted as internal storage" within the device as that for sure is limited at max 256GB capacity by xiaomi, don't know why they do that. However, I'm interested to know about the part where if the said microsd card is mounted as external storage can MIUI read and write to this storage at its fullest capacity of either 400GB or 512GB?