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Hello members,
Bought a new lg optimus one a few days ago. Came with a stock 2GB card and did not install anything much in it.
Just songs and a few apps from android market like - angry birds, handcent SMS etc..
Yesterday I saw this sd unmount problem for the first time.. Even the contacts in the contact list disappeared. But after a restart and all things came back to normal. Then again saw same things a few hours later.. But did not act on it and things became normal by itself!!
Can you please help me:
1) identify my sd card class?
2) identify if my phone is suffering from sd unmount problem?
3) solve this sd unmount problem(if any) with this stock card.
Hopping to get helped soon
Still awaiting help.. Please help guys.. :|
open the back cover and look at the sd card. The class of the card is written inside a small circle (the circle is not whole) [the sd cards of class 2,4,6 are common]
NOrmally class4 cards are reported to have issues. I myself have this problem on my CLass4 8gb san disk card.
A way to reduce sd unmounts is to install all the apps to phone memory and use the sd card only for read operations (like watching movies and listening to mp3's etc)
I have noticed sd unmounts while an app tries to write data to the sd card. I have never had any issues while reading from an sd card.
If the SD does not have the number inside the circle then its probably class 1. The stock SDs do not always work because they do not come from LG originally. They come from the your local LG retailer.
The solution is to go for a higher class. And not only the class, buy a MicroSDHC that is of a known brand. I had the same problem as you with my stock card and changed it directly because I had the same issue with my old GT540.
Apparently, android 2.1 and higher need fast cards for writing.
or u could try some custom rom's
cause my phone came with a samsung 2G SD and had unmount problems with stock rom
Guys which class card should I go with?? And apart from changing to a new card, is there any other option?
ragavbpl said:
Hello members,
Bought a new lg optimus one a few days ago. Came with a stock 2GB card and did not install anything much in it.
Just songs and a few apps from android market like - angry birds, handcent SMS etc..
Yesterday I saw this sd unmount problem for the first time.. Even the contacts in the contact list disappeared. But after a restart and all things came back to normal. Then again saw same things a few hours later.. But did not act on it and things became normal by itself!!
Can you please help me:
1) identify my sd card class?
2) identify if my phone is suffering from sd unmount problem?
3) solve this sd unmount problem(if any) with this stock card.
Hopping to get helped soon
Click to expand...
Click to collapse
the default sd card provided by lg is class 2
stock rom has unmount problem so try custom rom
if u want to change sd card go for class 6 or 8 san disk works good
shhbz said:
the default sd card provided by lg is class 2
stock rom has unmount problem so try custom rom
if u want to change sd card go for class 6 or 8 san disk works good
Click to expand...
Click to collapse
Which custom ROM can help me and which also has a good battery backup? My girlfriend actually owns it who is a light user... She do not want to play high end games and all.. She just wants the phone to work good..
Also purchasing a class 6 would be out of budget for me.. But can a SanDisk 8gb sdhc class 4 card do some good?
ragavbpl said:
Which custom ROM can help me and which also has a good battery backup? My girlfriend actually owns it who is a light user... She do not want to play high end games and all.. She just wants the phone to work good..
Also purchasing a class 6 would be out of budget for me.. But can a SanDisk 8gb sdhc class 4 card do some good?
Click to expand...
Click to collapse
go for void if u want battery http://forum.xda-developers.com/showthread.php?t=887281
as far as sd card is concerned just try the custom rom and see id the problem persist since she is not a heavy user she wont be needing 8 gb card as well untill unless she listen to songs. while sd card class 4 is good enough i am using that too san disk since other was out of my budget i bought it as i needed higher storage space but my unmount problem was solved flashing custom rom in my 2 gb sd card provided by lg
move all the apps to phone memory. this will reduce the sd card unmounts.
I want to buy a micro sd card the same speed/class rating as the built in memory in my galaxy s2. Don't see any point in going higher class or speed, on the other hand I don't want to go lower. What class our speed rating of microsd should I therefore buy please. Thanks folks.
You won't ever get a sd card that will run as fast as the NAND/internal sd. So in essence, your goal will never be achieved. What you can do however, is change the external sd card reading speed/rate, so that the scanning will be much faster than stock. I don't remember where a guide can be found, but search it up, it was on the portal/news here once. Also i do not know if it will work with the GS2.
Kailkti said:
You won't ever get a sd card that will run as fast as the NAND/internal sd. So in essence, your goal will never be achieved. What you can do however, is change the external sd card reading speed/rate, so that the scanning will be much faster than stock. I don't remember where a guide can be found, but search it up, it was on the portal/news here once. Also i do not know if it will work with the GS2.
Click to expand...
Click to collapse
It's called SD-Booster. It will only allow you to modify your READ times. It also requires root access to be set on boot.
Thanks both for your replies, my phone is not rooted (lack of confidence in doing that re warranty etc just while its new)
On a slightly different tack, is there a speed rating of a micro sd which would not impede 1080p video playback on my SG2 , I download a lot of astronomy podcasts which are HQ for small details to be displayed, not too bothered about the time to save them onto the micro sdcard , but wouldnt want the micro sd card not to be able to supply the data fast enough back to the system for smooth play. I know I could keep most of them on the factory memory, but micro sd based playback would be useful too.
so I just bought this card cause I use lots of storage space pretty quickly, My question is wtf is going on here? it just sticks on "checking for errors" and never gets past it, it mounted up once and while I was dumping files on it over USB from my computer (in usb mass storage mode) both it and my internal storage just disappeared, the copy operation failed, so I restarted the phone and I have yet to get the phone to mount it since then.
I'm running eclipse 1.3rc2, is this because of the sd flip-flop, the size of the card or the fact that it's class 10?
the card works perfectly fine in my camera, and in multiple PCs, but as soon as I stick it in my X2, it just doesn't want to work.
I noticed the stock SD card has a "bootable" partition flag, whereas this one doesn't. maybe this is my problem?
also what filesystem should I use, I run linux on my PCs so I can do whatever I want with it.
what if I just delete its partition table, put it in the phone and then let the phone format it? I've reformatted it with my PC and no dice.
Cheapxj said:
so I just bought this card cause I use lots of storage space pretty quickly, My question is wtf is going on here? it just sticks on "checking for errors" and never gets past it, it mounted up once and while I was dumping files on it over USB from my computer (in usb mass storage mode) both it and my internal storage just disappeared, the copy operation failed, so I restarted the phone and I have yet to get the phone to mount it since then.
I'm running eclipse 1.3rc2, is this because of the sd flip-flop, the size of the card or the fact that it's class 10?
the card works perfectly fine in my camera, and in multiple PCs, but as soon as I stick it in my X2, it just doesn't want to work.
I noticed the stock SD card has a "bootable" partition flag, whereas this one doesn't. maybe this is my problem?
also what filesystem should I use, I run linux on my PCs so I can do whatever I want with it.
what if I just delete its partition table, put it in the phone and then let the phone format it? I've reformatted it with my PC and no dice.
Click to expand...
Click to collapse
When I got the 8gb card and using now it was acting weird ...would copy files when in the phone. I formatted it using the phone and it has worked fine since.
Good luck.
I can't say it will work for u but it cured the problems I had at the time.
just make sure u format the right card since in eclipse its switched around and recognized as internal in menu.
well, It took exchanging it for a class 4, and now it seems perfectly fine.
so note to self (and others)
NO CLASS 10 CARDS IN DROID X2, IT DOESN'T FN WORK!
Cheapxj said:
well, It took exchanging it for a class 4, and now it seems perfectly fine.
so note to self (and others)
NO CLASS 10 CARDS IN DROID X2, IT DOESN'T FN WORK!
Click to expand...
Click to collapse
I don't think that is true...I thought I saw plenty of users say they use them.
Mine is class 6 and works just fine
Did u try formatting from in the phone while stock? Don't know if that would make a difference at all
I didn't read one single thread from someone successfully using a class 10 card without having issues, sometimes it took a few days/weeks, it only took me one mount/dismount cycle.
besides, the class 10 cards, while having a higher sustained transfer rate, their seek times and random access times are overall slower. basically these class 10 cards are ONLY good for digital video cameras and things that don't actually utilize a filesystem.
that or they're getting cheap chinese cards that are just remarked class 6 cards, the X2 can't read and write to a class 10 fast enough resulting in data corruption, period.
Yeah im not arguing
I understand what ur saying now
I can confirm class 6 being completely fine tho
I think the "issues" I had was the file size I was trying to transfer(4gb)
I don't think it's the class rating but the capacity. In my experience 32 gb cards just aren't as reliable as smaller-capacity ones. Perhaps it's a consequence of packing too many memory cells into such a small form factor, I don't know, but I've had three 32 gb micro-SD cards fail on me since the beginning of the year, whereas not a single 16 gb card has failed me yet.
I just dumped 4.8gb of crap on it, over usb and it took it like a champ, it's also significantly faster than the stock 8gb card in terms of mounting, remounting, scanning my media and even opening up fileexpert is faster.
class 6 i'm sure is fine, probably the best balance, but I can even take HD video straight to this card with no frame dropping or glitching. it's currently playing hd video on my hotel room TV right off the SD card w/ no issues (the stock 8gb couldn't do that)
Ha. Mine came wit a 2gb class 2 sdcard ...
Wait...now that I think about it.. I had bought a droid pro initially. It had a screen issue...I took it back and paid extra to get the x2. Then I told em I didn't wanna lose my pics/video I had taken and he switched the cards. So I guess he basically just kept the one I wax supposed to get instead of moving my data to the new one....prick...
iCurmudgeon said:
I don't think it's the class rating but the capacity. In my experience 32 gb cards just aren't as reliable as smaller-capacity ones. Perhaps it's a consequence of packing too many memory cells into such a small form factor, I don't know, but I've had three 32 gb micro-SD cards fail on me since the beginning of the year, whereas not a single 16 gb card has failed me yet.
Click to expand...
Click to collapse
what brand(s)?
I'm using a Patriot LX 32GB Class 10 MicroSDHC now. I came from a Lexar 32GB class 10 which failed within a month. I haven't had any problems with the Patriot.
i am using a class 4 32gb card and transfer 16g of music on and off at one time constantly with no problems. i have had it since july
ninjasailas said:
i am using a class 4 32gb card and transfer 16g of music on and off at one time constantly with no problems. i have had it since july
Click to expand...
Click to collapse
post the brand too.... this info is not useful.
in my case the 32gb class 10 pny card worked fine in everything but this damn phone.
L2_n19h7m4r3 said:
I'm using a Patriot LX 32GB Class 10 MicroSDHC now. I came from a Lexar 32GB class 10 which failed within a month. I haven't had any problems with the Patriot.
Click to expand...
Click to collapse
I use the 16gb of this and it works great. I did hear more than once that even a good 32 gb can be a problem.
My pny class 10 32gb is still rockin with not a single error
from my X2 roaming the north
Brand new 16gb NT. Dual booting CM7 from the SD card, which is a brand new PNY 16gb Class 10. NookOS still on the internal. It just seems unstable-y to me.
First of all I have the wifi issue which seems to be common. It drops the signal quite a bit even when I have a seemingly strong commection and also doesn't always want to turn right on after sleep. I'm willing to chalk some of that up to my router, especially the dropping, but I thought I'd mention it for posterity.
I also get lots of reboots. It seems to happen most when I have a few things running. Have the gall to install an app while having Gmail open, then the audacity to open Gtalk on top of that? Boom! Reboot. You get the idea.
It's also just sluggish in general, be it with web browsing, games, music, etc. Netflix makes me feel like I'm running it on a Pentium II. And Yahoo mail arguably doesn't work it's so slow. Lots of system notifications and "force closeds."
I've also had the issue where I couldn't get it to boot CM at all. It would get to the splash screen then freeze and reboot. More than once I had to reformat the card and start over.
Surely this isn't what I should be experiencing. Will it help to root it and install to the internal? I wanted to keep NookOS on there in case I want to sell it and upgrade.
Any thoughts?
I started with the PNY and found the same thing. I switched to an 8 GB Sandisk Class 4 and could not believe the difference. It has to do with the small block write speed and the PNY is SLOW.
There is a lot of material in the forum about what brand and speed of micro sd to use. If you are curious you can search.
I have a 32 GB Sandisk Class 4 on order and intend to transfer to it when it comes and I find out how.
Bill
Its likely because you are using a higher class sd card. Drop down to a class 4 and you'll see an improvement.
Cubanluke88 said:
Its likely because you are using a higher class sd card. Drop down to a class 4 and you'll see an improvement.
Click to expand...
Click to collapse
miniblue said:
I started with the PNY and found the same thing. I switched to an 8 GB Sandisk Class 4 and could not believe the difference. It has to do with the small block write speed and the PNY is SLOW.
There is a lot of material in the forum about what brand and speed of micro sd to use. If you are curious you can search.
I have a 32 GB Sandisk Class 4 on order and intend to transfer to it when it comes and I find out how.
Bill
Click to expand...
Click to collapse
So is it the class 10 cards altogether, or just PNY?
I would say class 10 in general is a bad idea. Its a misconception that higher class = better, in general. They are better for camcorders/digital audio recorders, but that's about it. In general you should stick to class 4 cards.
I can't speak on that brand personally. I only use SanDisk cards.
Amazon has the 32 GB Sandisk Class 4 for less than $16. You can get 8 gb for less than $8. Go for the bigger one if it fits your pocketbook.
Bill
Ok, so I have to get a new card. Maybe I can unload this one on Craigslist.
What about just rooting it and installing to the internal? The only thing is now I guess the NookOS is bricked as I cant get back into it. Can I unbrick with a class 10? The thread said to use a class 4.
If you want to run internal cm7, simply create a clockworkmod bootable sdcard (same process you did for cm7 on sdcard, but with the cwm image). Then download the cm7 zip file to the sdcard or your internal memory, boot into clockworkmod via the sdcard and install from zip. Download and install gapps in clockworkmod as well if you want the play store/google apps.
A quick question off topic...I went to get a copy of the internal CM7 and the link in the development forum isn't working...any idea where I can find a working link?
Thanks,
Nikkie
Hello all,
Question for you guys/gals, i ordered the Z2 and expecting delivery today. I am now looking at microSD cards. I notice some inconsistency in the MicroSD card capacity from different sites. Anyone know if the 128 works with the Z2?
Sony's site: Expansion slot: microSD™ card, up to 64 GB (SDXC supported) Clicky
Phone Arena: microSD, microSDHC, microSDXC up to 128 GB Clicky
GSMArena: microSD, up to 128 GB Clicky
Thanks in advance!
It shoyld support it mate, I wouldn't worry about it
Sent from my LT30p using Tapatalk
128 gb should be no problem
I got my wife a Z1 Compact and am (im)patiently waiting for my Z2 to arrive. I ordered a mess of the SanDisk 128GB cards when Amazon first got them in about 2 months ago. I've yet to put one in something and have it not work properly. Works perfect in the Z1 Compact, so I would think that there would be no issues with the Z2.
I should warn you however that the performance is pretty painful. Coming from SanDisk's 64GB extreme plus, the speed of something that just makes the cut to be a class 10 is a little disappointing. For me capacity comes before performance almost every time - my Go Pro probably being the lone exception.
Thanks all. Very much appreciate the responses.
roninr1c said:
Hello all,
Question for you guys/gals, i ordered the Z2 and expecting delivery today. I am now looking at microSD cards. I notice some inconsistency in the MicroSD card capacity from different sites. Anyone know if the 128 works with the Z2?
Sony's site: Expansion slot: microSD™ card, up to 64 GB (SDXC supported) Clicky
Phone Arena: microSD, microSDHC, microSDXC up to 128 GB Clicky
GSMArena: microSD, up to 128 GB Clicky
Thanks in advance!
Click to expand...
Click to collapse
I have a 128gb in my Z2, only got the phone yesterday, no problems so far
My 64GB card is showing up as a 64GB card but I'm yet to find a way to actually get anything onto it. The only way I got stuff on is when the phone's internal capacity was getting full (already! after one day!) and it offered to move stuff (movies, music, photos) to the SD card. It managed to yet none of my file manager software on the phone, or when connected directly to PC, or via WiFi File Explorer, or even when the card is directly in the PC with an adaptor, lets me put an actual file on it. I can create a new folder if I'm lucky, that's it.
It's a beautiful phone but the SD card is doing my head in. I've a Sony 64GB SDXC so it should work a treat... have I missed something? Like an option somewhere to actually allow writing data from the card by the user rather than just when the phone says it's okay?
Ungruntled said:
My 64GB card is showing up as a 64GB card but I'm yet to find a way to actually get anything onto it. The only way I got stuff on is when the phone's internal capacity was getting full (already! after one day!) and it offered to move stuff (movies, music, photos) to the SD card. It managed to yet none of my file manager software on the phone, or when connected directly to PC, or via WiFi File Explorer, or even when the card is directly in the PC with an adaptor, lets me put an actual file on it. I can create a new folder if I'm lucky, that's it.
It's a beautiful phone but the SD card is doing my head in. I've a Sony 64GB SDXC so it should work a treat... have I missed something? Like an option somewhere to actually allow writing data from the card by the user rather than just when the phone says it's okay?
Click to expand...
Click to collapse
Yes, you missed Kitkat restrictions. :/
KyleSforza said:
Yes, you missed Kitkat restrictions. :/
Click to expand...
Click to collapse
That doesn't seem right.
So according to you I can't put music on my SD Card; I can record movies and photos on the phone onto the SD card but cannot transfer them to a PC, and I can't basically do ANYTHING with files on the SD card on my phone?
That doesn't sound right. What's the point of having an SD Card slot at all then? I thought the Kit Kat restrictions applies to apps, not general files. If you're right I'll have to change to another phone as that is a step backwards. It was SO easy on my Xperia S.
So far I've had to upload all my photos & movies I've taken since getting the Z2 to Dropbox and then download them on my PC from there, which is taking HOURS. I'm then going to format the card and see if that helps (I did not format it on insertion as it showed up OK and all seems well but my PC won't read it even in a reader).
This don't seem right. I'll update later (it will, as I said, be hours) with a solution to this in case anyone else is having the issue I'm having.
Ungruntled said:
That doesn't seem right.
So according to you I can't put music on my SD Card; I can record movies and photos on the phone onto the SD card but cannot transfer them to a PC, and I can't basically do ANYTHING with files on the SD card on my phone?
That doesn't sound right. What's the point of having an SD Card slot at all then? I thought the Kit Kat restrictions applies to apps, not general files. If you're right I'll have to change to another phone as that is a step backwards. It was SO easy on my Xperia S.
So far I've had to upload all my photos & movies I've taken since getting the Z2 to Dropbox and then download them on my PC from there, which is taking HOURS. I'm then going to format the card and see if that helps (I did not format it on insertion as it showed up OK and all seems well but my PC won't read it even in a reader).
This don't seem right. I'll update later (it will, as I said, be hours) with a solution to this in case anyone else is having the issue I'm having.
Click to expand...
Click to collapse
The restrictions that kitkat impose are that applications cannot write to anywhere on the sdcard and must use their own folder on an sdcard. Applications that have rootaccess are able to bypass this limitation including some pre-installed apps such as the camera, walkman and file commander application.
I have all my music and videos stored on my sd card and have no trouble accessing them and I copy them across in media-transfer mode via usb cable on my pc.
When you attach the sd card to your pc, are you doing it through your phone or via a card reader etc?
Situation has changed a little now - I can now view the card correctly on my PC.
It's because I'm stubbornly still on XP (I am NOT moving to Vista, 7 or 8 any time in the future!) so I needed an update to enable SDXC cards, otherwise it just gets stuck saying "card isn't formatted, do you want to format it? (yes) Oh, formatting failed" etc.
In case anyone else has problems like this the update is KB955704, available from link below.
http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=19364
This means I can now just pull the card from my Z2 and stick my music etc. on from there, and pull the photos etc off from there.
It seems even when connecting to PC via the phone's USB lead there are problems until this update is in - I could see the files but not edit them, move, copy, etc etc which is what was REALLY confusing me.
Sorry if I seemed a bit noobie about that. I've actually been flashing my phones, tinkering etc for years and years but I guess I've not had an SDXC card before so didn't realise it wouldn't play ball.
MUCH better now - I don't really care what the KitKat limitations are now I can just transfer files "properly".
Cheers for the explanation about KitKat though, that is very useful.
So I wasted a day transferring files via Dropbox when a poxy Windows update would have solved it. You live and learn. I hope I can save someone else the hassle!
The pre-installed File Commander can write to the internal storage. So getting files onto the external add card is two stages. I copy over WiFi from my NAS to internal storage using ES file explorer, then copy from internal to external using file commander.
Sent from my Nexus 7 using XDA Premium 4 mobile app
ericjennings said:
The pre-installed File Commander can write to the internal storage. So getting files onto the external add card is two stages. I copy over WiFi from my NAS to internal storage using ES file explorer, then copy from internal to external using file commander.
Sent from my Nexus 7 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Thanks for that, I found that File Commander trick earlier. Problem I had to get around was I went nuts and installed every single app I ever bought but couldn't use properly on my old phones - namely the GTA games which were broken for my Xperia S. I ran out of internal storage within hours of getting my Z2... I got over-excited. I've calmed down now and deleted a load so there's more space and my SD card works fine now when in a card reader.
I've never been able to manage files directly from Explorer on my PC though when the phone is directly connected, either on the S and now the Z2. I think it worked to a point on my Xperia X10 but I mostly used Wifi File Explorer... which isn't working on my Z2 unfortunately, probably due to the Kit Kat restrictions mentioned.
I can kind of see why they did that - my phones used to get full of mystery folders full of crap over time - but it's a shame it breaks a lot of the old ways I used to get things done.
Anyway I apologise if we've gone off topic but thanks everyone for your very helpful hints and advice. I'm actually looking forward to getting my O2 Xperia Z tablet with the bundled offer (£99 for an Xperia Z tablet, yes please O2!) because it will most likely be permanently stuck on good, old-fashioned Jelly Bean. I've not seen much in Kit Kat that has thrilled me. I don't think I'd update to Kit Kat if I had a choice given how firmly a grip of your nuts they have now.
Cheers!
Hey guys with the 128gb card. How does 4K video go when writing to the card? Is it fast enough?
robt772000 said:
Hey guys with the 128gb card. How does 4K video go when writing to the card? Is it fast enough?
Click to expand...
Click to collapse
Hi I don't have a 128gb in mines but rather a Sandisk ULTRA 64Gb class 10 SDXC card.
I shot a 2 minute 4k video this afternoon which was saved directly onto the SDcard and on playback there seemed to be no problems whatsoever playing it back.
I hope that helps.
I have a 128gb card. Just recorded 1 minute of 4k to sd card and played back without problems. File size 391mb.
Sent from my D6503 using XDA Premium 4 mobile app
What sort of write speeds do you get?
I'm thinking of buying this to replace my 64gb card.