Database Info

minor glitches when playing video from external SD card (Sandisk 16GB)

When I play video stored on my internal storage, it is smooth. I can watch a 90 minute movie video without noticing any glitch at all.
When I play video stored on my external storage, there are glitches. One glitch every 1-2 minutes. These are not big glitches, just a brief deviation that gets your attention. If I listen, I think it is skipping a fraction of a second of the audio. (It may be skipping a fraction or second of the video display also, but my eye doesn't detect it). It's not a huge deal: ...... but just something that I notice and it's a minor irritation.
Since it occurs only on external sd, not internal storage, I assume it is the speed of the sd card. I have a 16GB Sandisk SD card. If I remember right, it's "Class 6"
I don't hear any glitches when listening to MP3's off of external sd, works just fine with no glitch ever.
SUMMARY: no problems on internal sd, no problems on mp3's. The only problems are videos on external sd.
It seems to me that the external sd can't quite keep up with the high transfer rate required for video playback.
Has anyone else seen this?
Any observation about which SD cards do this and which don't?
By the way I'm running rooted 2.3.6 from qkster's package, with Zen's Infusion A kernel. Holo launcher.
I haven't tried boosting to 1600Mhz. I'll try that and report the results later.

electricpete1 said:
I haven't tried boosting to 1600Mhz. I'll try that and report the results later.
Click to expand...
Click to collapse
I just tried it - no difference. Glitches still occurred with cpu max frequency set to 1600.

You should try to format your external card and then try again.
Also, it could be your external card is to slow on reading
Should not be that slow if it is class 6 though...
Maybe try other card on your infuse with same video file.
Sent from my SGH-I997 using xda app-developers app

zpzp96 said:
You should try to format your external card and then try again.
Also, it could be your external card is to slow on reading
Should not be that slow if it is class 6 though...
Maybe try other card on your infuse with same video file.
Sent from my SGH-I997 using xda app-developers app
Click to expand...
Click to collapse
Thanks. I have also noted the SD card media scanner runs to scan my external sd card more frequently... almost every time the phone comes out of sleep. I think this symptom coincides with me adding more files to my external SD.
I will try reformatting now as you recommended.
Question: is it better to reformat sd card in the phone or on the pc?
(if on the phone, there is no question of file system... I'll let the phone pick the format. If on pc, I'm not sure what format to pick... I'm using Entropy's kernel with voodoo lagfix enabled... does that mean external cannot be formatted to FAT32? )

The bigger problem is the constant scanning every time I turn the screen on. It was a nuisance, and I think it was draining my battery.
It gave the error message "sd card unexpectedly removed".
There are threads on this for some other Samsung devices.
http://forum.xda-developers.com/showthread.php?t=1933743
http://forum.xda-developers.com/showthread.php?t=2031009
There was a suggestion Sandisk cards in Samsung devices tend to have the problem.
I transferred my files to my pc, formatted sd in the phone, no problem until I transferred files back... then problem started recurring.
I reformatted in the PC to Fat32. Put files back on. Seems to be much better. But very close monitoring using SD Card Monitor program....
https://play.google.com/store/apps/...t=W251bGwsMSwyLDEsImNvbS5zZGNhcmRtb25pdG9yIl0.
... shows it is still have problems. I'm going to break down and buy another sd card. Perhaps another brand.

electricpete1 said:
The bigger problem is the constant scanning every time I turn the screen on. It was a nuisance, and I think it was draining my battery.
It gave the error message "sd card unexpectedly removed".
There are threads on this for some other Samsung devices.
http://forum.xda-developers.com/showthread.php?t=1933743
http://forum.xda-developers.com/showthread.php?t=2031009
There was a suggestion Sandisk cards in Samsung devices tend to have the problem.
I transferred my files to my pc, formatted sd in the phone, no problem until I transferred files back... then problem started recurring.
I reformatted in the PC to Fat32. Put files back on. Seems to be much better. But very close monitoring using SD Card Monitor program....
https://play.google.com/store/apps/...t=W251bGwsMSwyLDEsImNvbS5zZGNhcmRtb25pdG9yIl0.
... shows it is still have problems. I'm going to break down and buy another sd card. Perhaps another brand.
Click to expand...
Click to collapse
Your SD card has problem for sure.
It shouldn't scan that often and it shouldn't say it is unexpectedly removed.
Seems either phone's card reader or the card is very unstable. That is why you are having problems in video files.
If the SD card benchmark program shows that tour SD card is performing bad, I beehive you got fake Sandisk SD card or really low class SD card.
From this point, I believe getting new SD card is the best solution here.
PS. You should put the SD card on PC then run benchmark on PC to see how it performs on PC. If it performs too much faster on PC, then the problem might be your phone's card reader.
Sent from my SGH-I997 using xda app-developers app

Symptom went away with new sd
Before replacing the sd card, I had 100+ sd card events recorded by theSD Card Monitor program in a 24 hours period.
After replacing the sd card, I have 0 events recorded by the SD Card Monitor program in a 24-hour period.
The new SD is a Lexar 32GB Class 10 for $45 at Target. (preformatted as FAT32)
It was cheaper than the $70 32GB SanDisk they're selling at Best Buy.
I'm tempted to say the problem is solved.
On the other hand, one thing I noticed on the old SD was that the old sd symptoms got worse with time... I don't think they were there when the card was new. So I'm not sure if I've really solved the problem or just reset the clock waiting for the new SD to act up under whatever influences degraded the old one. Time will tell. For the time being, life is good. That scanning upon coming out of sleep was a real PITA.. slowed down the phone just when you picked it up to use it... actually dropped two phone calls recieved while phone was sleeping.. I presume because the phone wasn't able to handle scanning and answering at the same time.

Perhaps it was a fake SanDisk. Where'd you buy it from? Lots of fakes on eBay.

I bought the SanDisk (that had the problems) at Best Buy.

Your SD card likely isn't the problem

I was going to post this in response to a couple of people in the development sections but my post count is too low so I'll post it here instead.
The SD slot in this phone seems to have an issue with corrupting SD cards, I've had to format both my old and new SD card multiple times with this phone as it becomes unusable every few days. I'm not versed enough in hardware to know if this is a bad connection between the SD slot and the "motherboard" of the phone. I've seen a number of people have their SD cards go bad with this phone and I assume that means we had a manufacturing issue. It would be really cool if a hardware hacker experiencing this issue could take a look inside and confirm whether or not the hardware is connected correctly.

Well, perhaps there's a high number of bad readers....
I've had the same card in my Q since the day I got it (mid-September), no issues.

Mine wouldn't read the day I swapped up from My Epic 4g Touch to This phone, So I popped in an sd reader backed up my data then let the Moto format it, no issues sence

Curious to know what class of card you guys are running. I've been running a Patriot class 10 but my previous was a class 4 without branding that came with my old Transform.
I'm really hoping that I just had my old SD card die at a bad time and that my newer SD card was just sent bad. Today I couldn't get the card to read from the SD slot in my computer, and it would not be cool if my phone caused it to become that way.

Solust said:
Curious to know what class of card you guys are running. I've been running a Patriot class 10 but my previous was a class 4 without branding that came with my old Transform.
I'm really hoping that I just had my old SD card die at a bad time and that my newer SD card was just sent bad. Today I couldn't get the card to read from the SD slot in my computer, and it would not be cool if my phone caused it to become that way.
Click to expand...
Click to collapse
Class 10 Maxell
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2074251
No issues here. I tossed the crappy class 2/4 that shipped with my Epic long ago.

Well I found an extra class 4, 2 GB SD card lying around the house when I was cleaning today. It may be that the local shipment of phones was bad, so if this SD card goes on me then I'll try exchanging the phone in another town just to be safe.
Just out of curiosity does anyone know whether Sprint orders enough phones for replacements with their original shipments? I'm not from a very large town so I'd imagine they would keep replacing with phones from the same batch.

I've got a Samsung 32GB class 10 mSD.
Nearly everytime I reboot my Photon Q it says "SD Card is damaged".
Go into settings, Mount SD Card once or twice and it works.
I've read, that other Android Devices have also problems with that size of SD Cards. (Google)
I had also problem in recovery restoring a backup, the restore process didn't went correctly
(said that everything was fine), had to use my 2GB mSD, which worked nicely and the backup also.
So I think it's an android/kernel issue than a hardware issue.

I have noticed that I get the corrupt sdcard error everytime I try to use the "mass storage" or "media device" setting with Windows.
I use Ubuntu 99% of the time and leave it connected in "camera" mode, have never had that pop up like that...
I usually just use ADB to copy everything anyway so I do not miss the "mass storage" mode at all.

Just had a 16gb class 10 microcenter branded card go belly up on me. Phone just all of a sudden said it was removed and now nothing seems to recognize the thing. The mount option is completely greyed out, and does the same on my note 10.1 if i pop it in there.
When your cards have gone did they completely disappear and refuse to read?
Sent from my XT897 using xda app-developers app

I wonder if it's the c10 cards...
You guys really shouldn't be using high class cards in a phone - there's really no benefit, as phones use SD card's very differently from camcorders or cameras...
On my ooooold phone, anything above Class6 was bad juju. I have always had class4 or lower cards, no fried cards (yet... lol)

kinda what I am feeling too. Not sure what class card I have but it was just a cheap 32gb from wallmart... Only had that error pop up once with this one though, and that was after trying to use usb storage.
Sent from my XT897 using xda premium

arrrghhh said:
I wonder if it's the c10 cards...
You guys really shouldn't be using high class cards in a phone - there's really no benefit, as phones use SD card's very differently from camcorders or cameras...
On my ooooold phone, anything above Class6 was bad juju. I have always had class4 or lower cards, no fried cards (yet... lol)
Click to expand...
Click to collapse
Class 10 shouldn't make a difference to a device. The class/speed only comes in to play when transferring data from/to a computer, which will be faster on Class 10 vs Class 4 or 6.
Sent from my PC36100 using Tapatalk 2

arrrghhh said:
I wonder if it's the c10 cards...
Click to expand...
Click to collapse
As best as I can tell, thats a negative. Ive been running with a 32GB class 10 since around when the phone was released, and Ive had no issues. Quite surprising on its own, seeing as I abuse the poor thing. True that class 10 arnt useful for the phone specifically, but some shops only carry class 10 cards.
@hfase
I dont seem to have any issues with mass storage, with ~1GB written a day. Im quite curious as to why some people have this issue.

ADegtyarev said:
As best as I can tell, thats a negative. Ive been running with a 32GB class 10 since around when the phone was released, and Ive had no issues. Quite surprising on its own, seeing as I abuse the poor thing. True that class 10 arnt useful for the phone specifically, but some shops only carry class 10 cards.
@hfase
I dont seem to have any issues with mass storage, with ~1GB written a day. Im quite curious as to why some people have this issue.
Click to expand...
Click to collapse
Maybe it's all down to the quality of the actual card itself?
Perhaps the cheaper no-name / off-name brands have a much higher failure rate....?
I'm not really sure, short of actual hardware issues on the device.

AW: Your SD card likely isn't the problem
Well here is my experience:
I am using a new san disk 32GB class10 micro sdcard. It was never format ed/ used before. The q itself formated the disk.
I have had no problems until using the twisted asanti prebuild
Version. Since then I only got problems with the qu saying the sdcard would be corrupt, after reboot. ( I expected some additional wired things, like the currents widget, which I deleted before reboot reappeared). So I would suggest it is an error in un mounting the sdcard before shutdown, which causes this failure.
Since I usually do not reboot the phone expect for flashing new roms, I had no trouble since then.
Hope this might help to further circle the problem, and maybe find a solution for this.
Sent from my awesome XT897

Since CM10 I haven't noticed any SD-Card issues, but I have the feeling, that there are some issues, which aren't detected.
In the last few days my CM10 was acting weird.
1. The gallery (together with the camera app, 2in1 app) disappeared in the App Drawer (was still in /system/app) and didn't appear again after overwriting gallery2.apk again.
2. The Google Weather App had a graphical issue, so I was sure, that there was a flash issue by restoring ASA14 and flashing CM10 (from SD-Card!).
I solved this issue in copying the nandroid backup and CM10 to the phone and flash it from there.
I have tested my SD-Card in my external cardreader, it had no issues in doing so.
My guess is, that the SD-Card needs more power than the Photon Q can give and is losing some read/write commands.

arrrghhh said:
Maybe it's all down to the quality of the actual card itself?
Perhaps the cheaper no-name / off-name brands have a much higher failure rate....?
I'm not really sure, short of actual hardware issues on the device.
Click to expand...
Click to collapse
I think This may have hit the nail on the head. I have had a couple cheap discount cards die but they really died. Cant even read in the PC and one even got really hot when plugged in. Got a good branded card from amazon and havent had a problem since.

Mordannon said:
I think This may have hit the nail on the head. I have had a couple cheap discount cards die but they really died. Cant even read in the PC and one even got really hot when plugged in. Got a good branded card from amazon and havent had a problem since.
Click to expand...
Click to collapse
I've used better Samsung and Sandisk cards and have had this issue. It just randomly wipes all my data and creates the LOST.DIR with it all in there, but file names are all renamed and would takes years to sort through and try to figure out what is what. All my photos, music, etc.. were basically gone then. It didn't matter that the card was a name-brand or not. I've had the issue with several cards.

I constantly have this problem as well, and I've found that mounting the SD card with a reader or in another phone in a Linux environment fixes it for the most part. I think files still get lost, but you get most of what you had back.

I got a 32GB UHS1 card last week and it hasn't had a problem.

Random unmounts and remounts of the SD card????

Just as the title says, I am having random unmounts and remounts of my sd card when trying to download things and when trying to view gallery. Phone is not rooted, its a sprint variant, and it's a 64 GB ultra sd card. I have had this card since my note 3 and it has given me no issues up until now. Am I the only one? Is there a fix for this? It's been doing this since day one.

Sounds like it could be a bad sd card. Try getting a adapter and putting it in your computer. If it reads it back everything up and format the card.
I've had a few micro sd cards crap out on me in the past.

I had the same problem. Never had a problem worth the cardin the previous phone. Format the card in the phone, still does it get a new card. And buy a Samsung micro sd. I have had numerous SanDisk cards die and finally went to Samsung and never had a problem since.

bignibb said:
Just as the title says, I am having random unmounts and remounts of my sd card when trying to download things and when trying to view gallery. Phone is not rooted, its a sprint variant, and it's a 64 GB ultra sd card. I have had this card since my note 3 and it has given me no issues up until now. Am I the only one? Is there a fix for this? It's been doing this since day one.
Click to expand...
Click to collapse
Forgot, not matter what, BACKUP YOUR DATA NOW off that sd card. So if it is going out, at least you will not lose any data.

Thanks all

128 sd card support ???

hi
i read a post a while ago about 128 SD card problem that when you enter 128gb SD card the device start restarting is the issue has been fixed ??
i am about to buy one

KBEERR said:
hi
i read a post a while ago about 128 SD card problem that when you enter 128gb SD card the device start restarting is the issue has been fixed ??
i am about to buy one
Click to expand...
Click to collapse
My phone never rebooted, I have a 128 GB SanDisk Class 10 sd card. But after like a few weeks or months I got a sd card error and soon after that I couldn't access any files on it.
Only rebooting solved the issue, but once I got it it would occur more often and often, sometimes every 2 days and sometimes multiple times a day. Formating the SD card made it work again for a few months until it started all over again.
I formated it to different formats (in windows), I also formatted it with the phone itself, nothing helped.. I'm constantly running out of space now because I only store my music and photos on the sd card.
I never tried a different sd card long enough to recreate the problem, but I used this sd card for a few months on a different device.
If someone fixed this please help me I'm so tired of this :crying:

I have a 128Gb Sandisk in my Mate 7, runs with no issues at all. Maybe clean your contacts?

RobboW said:
I have a 128Gb Sandisk in my Mate 7, runs with no issues at all. Maybe clean your contacts?
Click to expand...
Click to collapse
To be honest I never tried it lol, but if rebooting the phone solves the issue I don't understand how dust or dirt could be the problem. I will try it anyways, maybe it works :cyclops:

Tazmaniiac said:
To be honest I never tried it lol, but if rebooting the phone solves the issue I don't understand how dust or dirt could be the problem. I will try it anyways, maybe it works :cyclops:
Click to expand...
Click to collapse
Cleaned the sd card and the sd card slot as good as possible, but after a few days I had the same problem again... Maybe my sd card is broken but I can't really test it so I guess I'll live with this forever...
Just now it came to my mind that I could've bought a fake SanDisk card, even though I got it from amazon. I will test it tomorrow I think.

Maybe.
How is it formatted? Probably most compatible to format to FAT32.
I have a 64Gb card in an old phone that was supposed to take a maximum of 32Gb and it works fine when formatted the right way.

RobboW said:
Maybe.
How is it formatted? Probably most compatible to format to FAT32.
I have a 64Gb card in an old phone that was supposed to take a maximum of 32Gb and it works fine when formatted the right way.
Click to expand...
Click to collapse
It is formatted exFat right now, I formatted it quite a few times since i got the card so I don't know whether I always had exFat or not. I'm checking the SD card now for it's real capacity, with 100 GB left it will take 8 hours, but if it's really a fake card it should cause errors way earlier I think. If that's not the problem I'll wait until I have time to flash KangVIP, then I'll re-format the sd card and do some cleanup while I'm at it.

i bought a 128gb samsung evo+ sdcard and working great so far

SD card not showing.

Hi all, My S7 no longer sees the 32gb micro SD card. I have removed and cleaned it, gone into safe mode just to see if it's a rogue app was causing the problem. It's still under warranty. Before I go down that route any ideas?
Thanks

jb.traveller said:
Hi all, My S7 no longer sees the 32gb micro SD card. I have removed and cleaned it, gone into safe mode just to see if it's a rogue app was causing the problem. It's still under warranty. Before I go down that route any ideas?
Thanks
Click to expand...
Click to collapse
Hi,
Did you install the "Prime" Kernel ? That was the same to me and this Kernel was "guilty"
Install another Kernel and your SD should be recognized

Sorry should have said "It's out of the box no root". Don't know when it failed to read but yesterday in the maintenance app it didn't show. I have also cleared the cache, just wondering if a Factory reset would fix it?

Does the card work in a PC?
If yes, back it up, wipe it (Delete partitions > create new primary partition > format to FAT32) try it back in the phone, if it works copy your stuff back to it
If it works in PC but not phone, try another card in the phone, if that doesn't work RMA the phone

When I get home from my sons in Bristol will do as you say won't be for a few days. I did a Google and looks like there are a few of us having the same problem. Not quite sure when but think after last SW update a week ago or so, just noticed after!
Thanks.

Just got home and found another micro sd card only 2gb but the phone now sees it. The old card was a genuine Samsung 32gb the only problem is that I don't seem to have a micro card holder to see if the PC will see it. As they are quite cheap now what is the max memory size that will work in the phone and any recommendations?
Thanks.

jb.traveller said:
Just got home and found another micro sd card only 2gb but the phone now sees it. The old card was a genuine Samsung 32gb the only problem is that I don't seem to have a micro card holder to see if the PC will see it. As they are quite cheap now what is the max memory size that will work in the phone and any recommendations?
Thanks.
Click to expand...
Click to collapse
200GB max MicroSD card size

*Detection* said:
200GB max MicroSD card size
Click to expand...
Click to collapse
I am using a 256gb card with no issues

parleyp said:
I am using a 256gb card with no issues
Click to expand...
Click to collapse
Good stuff, just going from what it says on Samsung's site, and Android Central
Have you managed to fill all 256GB and have it all readable?

Wow 256GB card could fit the whole of the world's populations data and then some. I am going for a 64GB card with the internal 32GB that will be more than enough for me.