Related
I did a search but I only have a phone to do this from so hopefully I didn't miss it.
Is it possible to make ram run off of the SDCard in a new partition (or even a current partition) simalar to Readyboost for vista? With all these home screen apps taking up so much RAM is would be helpful.
I am what you would call an advanced noob at this so don't flame me if I'm totally off.
I don't believe android supports something like this, this is sort of like Virtual Memory in Windows. However, the effectiveness of this isn't very good, moreover, the speed of the SD card or even support for this feature is... unknown. So, for now, I'm going to have to say I don't think so.
http://forum.xda-developers.com/showthread.php?t=483110&highlight=swap
Yeah, it's in the market now too. I haven't tried it out though, I don't want to make my microSD card last even less now... =P
axion68 said:
http://forum.xda-developers.com/showthread.php?t=483110&highlight=swap
Click to expand...
Click to collapse
Thank you for that.
amgupt01 said:
Yeah, it's in the market now too. I haven't tried it out though, I don't want to make my microSD card last even less now... =P
Click to expand...
Click to collapse
Any idea how much less?
mmafighter077 said:
Any idea how much less?
Click to expand...
Click to collapse
Linux swap partitions aren't designed for flash memory like Readyboost is. Microsoft says Readyboost is designed to make your memory last at least 10 years with moderate use, but Linux swap might stress it more. MicroSDs are really cheap though.
nm page didn't load right, i thought i was the first post with useful info.
mmafighter077 said:
Any idea how much less?
Click to expand...
Click to collapse
It should still last you years.
Each sector on flash media can be written to something like 10,000 times. After that's worn out, I believe it just ignores that sector. Meaning when your mem stick starts dying, you'll just have less space available to you.
I currently run my notebook with a Compact Flash card in the notebooks built in CF slot, and run my swap file on that. It's been a while, and it still hasn't died.
It's quite a long time - a sector isn't written 10,000 times sequentially, the hardware in the chip moves the writes around to avoid wearing out any single element (wear levelling), and if any single element does go it'll just ignore it, as you mentioned.
Any modern SD is likely to outlive the phone, basically. I've got entire computers running off SD and I've never had a failure (hard drives fail way more often, due to their mechanical nature).
my android is running off a SD card.
So I've rooted and SD apped my G1, and have been loving every bit of it. I do have one question though about speed.
This is not really related to rooting or SD apping my phone it's more along the lines of the speed of "Home"
I often find that the more apps i move to my home screen (or your fav home app 'open home' 'ahome' etc), that going to the home app takes a long time to load.
When I only have a few icons then it's faster generally speaking. But I have about 7 folders with maybe 7-10 apps in them on avg, to keep my screen organized, but it seems that I will never get around how slow it is due to the amount of icons i have in the folders on the screen.
Does anyone have any suggestions on how to make the home screen any faster while keeping my apps organized?
I was thinking along the lines of maybe a Labeling App that lets you categorize your apps...sort of like how the Market lets you search for them. Maybe this way...a reference to a label could at runtime go and pull up the apps you've labeled as such...as opposed to having physical app links in a physical folder...thus forcing the home screen to load all of your organized apps (that you're not even using at the moment)...slowing it down.
Tips & tricks welcome!
swapit !!
http://www.cyrket.com/package/lv.n3o.swapper
dixxa said:
swapit !!
http://www.cyrket.com/package/lv.n3o.swapper
Click to expand...
Click to collapse
Could you provide some kind of testimony about this app?
Is there any side effect of that mod what are the concret and noticable benefits?
I have the default 2GB scandisk card in my phone, is it fast enough to do SWAP? I have no clue how crappy or neat is that card in terms of speed.
Thanks
friggin sweet! worx awesome!
man this app wont destroy your card
it'll create a file named swap on you /system/sd/
and boost you little phone it's free feel free to test
if you don"t like it disable it and restart your phone .
that's all !
nice site thanks
It WILL shorten your SD Card's lifetime significantly!
There is a limited number of reads/writes before the SD card begins to corrupt.
well well well
http://communities.sandisk.com/sandisk/board/message?board.id=memorycards&thread.id=614
directly from sandisk's forum ... so please stop talking nonsense ...
dixxa said:
well well well
http://communities.sandisk.com/sandisk/board/message?board.id=memorycards&thread.id=614
directly from sandisk's forum ... so please stop talking nonsense ...
Click to expand...
Click to collapse
That might be for normal usage.
Using the disk as a swap drive IS NOT NORMAL USAGE!
And it still doesn't change the fact that there's a limit to how many times you can read and write to a flash memory chip.
I read an article about a TV company who were trying out SSDs (based on flash memory, the same tech) as a fast way of providing on-demand TV over the internet.
The drives lasted about 3 days... and that's professional drives..
I'm not saying you will burn out your card in 3 days... but you will decrease it's lifespan from maybe 2 years to 1 year or maybe 6 months.
Does it really matter micro sd cards are so cheap I got an 8GB class 6 card off newegg for $15 w/ free shipping. Just make sure you back your crap up every so often. Which you should do anyways.
speoples20 said:
Does it really matter micro sd cards are so cheap I got an 8GB class 6 card off newegg for $15 w/ free shipping. Just make sure you back your crap up every so often. Which you should do anyways.
Click to expand...
Click to collapse
Not really, except that - as you say - you should be aware of it, so that you're not suddenly left with data loss and a semi-bricked phone ;-)
Don't worry sandisk microSDHC have something like 10years life span and believe me you would change card before the swap "kill it".
After using Swapper for a few days i uninstalled it. So it's not really resolved my issue. it seems to lockup the whole phone when not in use for a few hours or so. nothing responds, and I have to pull the battery to get it to turn off. nice concept...and when it was working, it worked well. just not sure why it freezes the phone after phone inactivity.
So, phones have evovled alot during the last few years.....
full html browsing, front and back cameras, emulation, and 1080 video playing
The difference between computers and phones have blurred......
so I ask this
"what can computers do that phones can't?"
other then the obvious processing power, graphics, and software designing.....
-I use this "what can computers do that phones can't?"
question to ask what i want my next app to be like so
any help is good help/answers
They pretty much do the same things these days. A PC just does everything a million times better
The issues with phones are input (you just can't beat a full tactile keyboard and mouse combo) and output (small screen). But that's easy to solve - dock. So in the not too far future you'll have all the computing power and personal data in your pocket and be able to do quite many tasks with that. Then, for the big tasks, you'll put the device on a dock connected to a keyboard, mouse and large display.
Gusar321 said:
The issues with phones are input (you just can't beat a full tactile keyboard and mouse combo) and output (small screen). But that's easy to solve - dock. So in the not too far future you'll have all the computing power and personal data in your pocket and be able to do quite many tasks with that. Then, for the big tasks, you'll put the device on a dock connected to a keyboard, mouse and large display.
Click to expand...
Click to collapse
You forgot about storage.
It would be great if you could dock your phone, have the screen project onto a wall, and have a wireless keyboard that synced...you'd basically have your computer..minus the hard drive space and all
I'd agree with Gusar, the input device is what really sets them apart IMO.
Unfortunately, Photoshop. The mobile app is a joke - I'm talking about layer editing, adjustment layers, masks, etc. If it weren't for Photoshop, and the ease of typing my school documents in Word, I'd never open my laptop.
There are a lot of things that run better on a computer, but I find myself using my phone for almost everything.
Sent from my PC36100 using Tapatalk
theo80 said:
You forgot about storage.
Click to expand...
Click to collapse
You forgot about Moore's Law.
Which states that the number of transistors that can be placed inexpensively on an integrated circuit doubles approximately every two years. (Thank you wikipedia )
This basically means that storage capacity doubles without becoming more expensive or bigger. Considering the fact that my Galaxy S II has 16 gb ( and 32 gb is possible ) of internal storage and another 32 gb of sd storage. Storage capacity will be 256 gb in 4 years. Of which 128 gb is really fast, for OS, and 128 gb is considerably fast, file storage.
When looking at the bigger picture other problems will be solved too. Because most of the specs will quadruple you are able to use photoshop and such.
And thereby the cloud computing will have evolved tremendously too in four years, rendering all the storage capacity useless.
So by the time we'll see docks as a standard, other problems will be solved too. Unless software requirements are raised too, but that seems unlikely, since my old 1.5 ghz 1 gb ddr 2 RAM laptop runs windows 7 fluidly. ( except for aero, damn you intel! )
Back on topic, I still haven't found a real good all in one VPN app, which also mounts my NAS as an SD card, or any external medium.
gangsterjoop said:
You forgot about Moore's Law.
Which states that the number of transistors that can be placed inexpensively on an integrated circuit doubles approximately every two years. (Thank you wikipedia )
This basically means that storage capacity doubles without becoming more expensive or bigger. Considering the fact that my Galaxy S II has 16 gb ( and 32 gb is possible ) of internal storage and another 32 gb of sd storage. Storage capacity will be 256 gb in 4 years. Of which 128 gb is really fast, for OS, and 128 gb is considerably fast, file storage.
When looking at the bigger picture other problems will be solved too. Because most of the specs will quadruple you are able to use photoshop and such.
And thereby the cloud computing will have evolved tremendously too in four years, rendering all the storage capacity useless.
So by the time we'll see docks as a standard, other problems will be solved too. Unless software requirements are raised too, but that seems unlikely, since my old 1.5 ghz 1 gb ddr 2 RAM laptop runs windows 7 fluidly. ( except for aero, damn you intel! )
Back on topic, I still haven't found a real good all in one VPN app, which also mounts my NAS as an SD card, or any external medium.
Click to expand...
Click to collapse
I know my next science project, a wireless keyboard made specifically for droid
As for output it would need to record its own screen (which I have no idea how to do) and output it to a wireless device such as a laptop or maybe a google tv with android......
does it sound within the depths of realism?
gangsterjoop said:
You forgot about Moore's Law.
Which states that the number of transistors that can be placed inexpensively on an integrated circuit doubles approximately every two years. (Thank you wikipedia )
This basically means that storage capacity doubles without becoming more expensive or bigger. Considering the fact that my Galaxy S II has 16 gb ( and 32 gb is possible ) of internal storage and another 32 gb of sd storage. Storage capacity will be 256 gb in 4 years. Of which 128 gb is really fast, for OS, and 128 gb is considerably fast, file storage.
When looking at the bigger picture other problems will be solved too. Because most of the specs will quadruple you are able to use photoshop and such.
And thereby the cloud computing will have evolved tremendously too in four years, rendering all the storage capacity useless.
So by the time we'll see docks as a standard, other problems will be solved too. Unless software requirements are raised too, but that seems unlikely, since my old 1.5 ghz 1 gb ddr 2 RAM laptop runs windows 7 fluidly. ( except for aero, damn you intel! )
Back on topic, I still haven't found a real good all in one VPN app, which also mounts my NAS as an SD card, or any external medium.
Click to expand...
Click to collapse
32GB is nothing much compared to TB harddisks available on the computer. Cloud storage is good, but if you want real performance the file being edited should still be in your local drive.
jolined said:
It would be great if you could dock your phone, have the screen project onto a wall, and have a wireless keyboard that synced...you'd basically have your computer..minus the hard drive space and all
Click to expand...
Click to collapse
Great idea. Later on Mobile phone is just like small computer but just need external device e.g monitor,keyboard,mouse etc.
Seems cpu,ram,storage technology is growing fast.
See macbook air is very thin.may be in the future we just carry thin tablet and can be integrated with our phone.
Sent from my HTC Desire Z using XDA App
theo80 said:
32GB is nothing much compared to TB harddisks available on the computer. Cloud storage is good, but if you want real performance the file being edited should still be in your local drive.
Click to expand...
Click to collapse
An even broader perspective, just for you.
In four years entire Europe will have an LTE network, so cloud storage up and down speeds shouldn't be too much of a problem. And besides, 32 gb is enough for caching all the stuff you're working on.
when i move, i use smartphone, when i'm home, i use computer
Most computers can run multiple operating systems. Most phones cannot.
And then there's the issue of battery life, where innovation crawls at the speed of a snail on tranquilizers.
rogier666 said:
Most computers can run multiple operating systems. Most phones cannot.
Click to expand...
Click to collapse
There is no inherent design characteristic preventing that, it's all about hardware drivers. If the hardware makers release documentation, then drivers can be written. But the problem is, especially in the embedded world, closed hardware is the norm.
On the other hand, Nvidia has released Meego compatible tegra2 drivers that, while closed, allow installing Meego on tegra2-based Android tablets, for example.
You can build your own computer. You cant build your own phone but I wish one day we can do this
Also games but that's due to power of the device and accessibility and screen size all of which were mentioned
Sent from my SAMSUNG-SGH-I897 using XDA App
rogier666 said:
Most computers can run multiple operating systems. Most phones cannot.
And then there's the issue of battery life, where innovation crawls at the speed of a snail on tranquilizers.
Click to expand...
Click to collapse
Any one else notice this?
Battery-life as stayed the same for years.....Just enough for people to be satisfied......but maybe that is just me since i have only use the one provided by the Cellphone provider.....
maybe there are high capacity batteries that aren't being incorporated here?
Gusar321 said:
There is no inherent design characteristic preventing that, it's all about hardware drivers. If the hardware makers release documentation, then drivers can be written. But the problem is, especially in the embedded world, closed hardware is the norm.
Click to expand...
Click to collapse
For the end user (that means almost everybody) it doesn't make any difference whether the limitation is due to hardware or software.
rogier666 said:
For the end user (that means almost everybody) it doesn't make any difference whether the limitation is due to hardware or software.
Click to expand...
Click to collapse
True, but we're talking here about differences between PCs and phones. The ability to run multiple OSes isn't one. Because when you have the drivers, phones can run multiple OSes. People porting Android to Windows Mobile 6 phones, as an example.
The result of porting a mobile OS is nowhere near the result of porting a desktop OS.
If you install Linux on a PC designed for Windows it will usually work without any trouble. If you port a mobile OS you downgrade your smartphone to a toy.
Availability of drivers required for porting is a major difference between phones and computers. That's why ported mobile OSs rarely work as they should. There are always missing features, reduced performance, and broken functions.
That's not a hardware limitation, but that doesn't matter. What matters is the result. As long as ported mobile OSs are not suitable for real life use phones are not able to do everything that computers can do.
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.
Click to expand...
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).
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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
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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.
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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?
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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.
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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?
I just bought an A53 , stepping down from "flagships" because the newest ones all lack expandable storage.
This feature is a MUST for me!
I've found the A53's interfacing to the card slot to be so EXTREMELY slow, to make it unusable!!!
Anyone else seeing this as well?
(I'm using a 1TB SanDisk - about 75% full - that worked quite well in my previous phone)
Is it the Exynos chipset (vs. Snapdragon previously) that is causing the difference?
Is anyone here using a large capacity microSD without any noticable speed issues?
Anything I might do to improve the situation???
(Aside from sending the phone back?)
And if I have to resort to that - recommendations on a good pgone w/ expandable storage - up to 1TB)?
(Many only specced to 256 GB)
What is slow? From internal memory to SD card or via Cport to SD card?
Is it a V30 rated card ie Sandisk Extreme?
On my N10+ with a V30 rated Sandisk:
Internal write 3.4-4gb @ minute
External write 1-2.2 gb @ minute, I believe it was.
An external transfer takes about 3.5 hrs for 400gb of data. Rates very somewhat depending on file structure and type.
The .5tb Sandisk Extreme is slightly faster. Both stream high res vids with no issues. Zero problems with both.
Once in the phone format card with phone before using. Do not remove the card once installed; instead do data transfers via the Cport. Do Not use in other devices unless formatting in new device first as it can cause card corruption. I was able to transfer my older .5tb card to my new N10+ without a format with no issues. However in general I don't recommend this practice. A corrupted card is a very rude surprise.
A used N10+ in good condition trumps a newer midrange Samsung especially if 5G and variable refresh rate display aren't important to you. It's a beast that runs like a she bat out of hell.
Many thanks, Blackhawk for your prompt and helpful reply!
Simply reading from the SD card, and getting a listing of files in s folder is very slow.
Here's an example:
Moving files from one folder to another on the SD card...
9634 files, 12.7 GB ; has taken over 29 HOURS
That's 2 hours per gigabyte.
Other transfers from internal memory to SD are also very slow, and often fail
depending on the file manager I try to do it with.
The card is a SanDisk 1TB Ultra MicroSDXC UHS - 120MB/s, C10
and as I mentioned, it has worked fine on my previous phone.
I've tried several different file managers with varying results.
They vary from completely inoperable to barely functional.
(The 2 hours per gigabyte is the BEST I could come up with )
The card was formatted in the old phone, and some transfers in and out were with a Windows PC in between.
I'll try offloading the contents to another drive and formatting in the A53 before copying back again.
5G is important - and a Note 10+ 5G would be an available option - but only available as refurbished now.
I may go there if the reformat experiment doesn't pan out.
Thanks again!
This is the one that you wanted for best speed. V30 rated. Even so your transfer rates aren't even near the ballpark.
Try reforming the card in the phone. Maybe a bad card; always buy from a reputable source, if it seems too inexpensive it's likely a fake. They are out there! B&H Photo, Western Digital and Amazon are good sources.
Unlikely it's the phone but check the contacts and clean the SD card contacts with anhydrous isopropyl alcohol. Never touch the contacts.
I don't recommend the N10+ 5G variant as it's a first generation 5G and will likely chew up battery life. 4G works well enough to stream vids and many sites cap their downloads making 5G irrelevant. New N10+'s may still be available if you look hard enough. I picked up one 9 months ago, not cheap but in a factory sealed box, perfect condition and running on Android 10.
Although I prefer Pie, 10 is ok, 11 not so much because scoped storage is fully active, 12 I won't touch. Pie is relatively secure unless you do stupid things. This device in my hand load is over 2 yo still running fast and stable.
Snapdragon is the preferred variant (better chipset and heat sink) unless you want to root.
The N10+ has maybe the best display available in terms of white point, color calibration/accuracy and gamma. The variable refresh rate displays are extremely hard to calibrate across the multiple display rates/brightness levels. As such the N10+ likely beats out even the newest Samsung flagships in these specs. Color accuracy is important to me; without accurate color calibration the gamma calibration sucks.
I deliberately chose a new N10+ over the N20U because of the above plus better form factor, the spen is on the right side, better SOT and reliability. The only repair my N10+ has had is a replacement battery. It looks, feels and runs like new. It's a gorgeous beast even today and a blast to use.