Database Develop

Phone keeps disconnecting in mass storage mode

hi guys this is my first post on this forum although i have been browsing around for a few months. my problem is that whenever i connect my phone to my pc and mount it, the computer recognises it but whenever i try to add files to the SD card or format it, the phone disconnects and i have to mount it again. once i have mounted it, the whole process starts all over again and now im stuck in a position where i cant do anything with it.
has anyone had his problem before and is there a way to fix it or is my SD card faulty? thanks in advance.

Are you rooted? If so, what rom are you on? Just give us some specs on what you got.

no im not rooted, im on the oem android software. i was just about to format my SD card so i could start rooting it.

Is it the factory sd card? Do you got another card to try out? If not, try to format the card in the phone and then try it again to see if it still does the same thing.

yeah its a factory SD Card. itried formating it from the phone and now i can add files to the card but it still disconnects whenever i try to format it. is the card protected or something?

djosiah said:
yeah its a factory SD Card. itried formating it from the phone and now i can add files to the card but it still disconnects whenever i try to format it. is the card protected or something?
Click to expand...
Click to collapse
You cannot format it through the USB by mounting it

ok how do i do it then? should i just use a card reader? or is there another way to do it by using the phone? also thought i would add that it has started doing it when adding files to the card again.

djosiah said:
ok how do i do it then? should i just use a card reader? or is there another way to do it by using the phone? also thought i would add that it has started doing it when adding files to the card again.
Click to expand...
Click to collapse
You can put it in a card reader if you have one. I would boot into ubuntu and do it that way, also if you are in ubuntu you can do it through your phone.

djosiah said:
ok how do i do it then? should i just use a card reader? or is there another way to do it by using the phone? also thought i would add that it has started doing it when adding files to the card again.
Click to expand...
Click to collapse
The phone has an option too. Go to
Settings > SD and storage > Format Card
Since your stock G1, the other phone partitioning/formatting isnt available

ok thanks guys i formatted the SD crad uising the options on the phone, which now leaves me to my next problem. i have download the Rc7 file and placed it on he root of the card but i when i power on the phone holding down the camera phone it doesnt show the grey screen with the flashing options, it jus shows the screen which tells me the board type etc. am i doing something wrong? sorry for all the questions.

djosiah said:
ok thanks guys i formatted the SD crad uising the options on the phone, which now leaves me to my next problem. i have download the Rc7 file and placed it on he root of the card but i when i power on the phone holding down the camera phone it doesnt show the grey screen with the flashing options, it jus shows the screen which tells me the board type etc. am i doing something wrong? sorry for all the questions.
Click to expand...
Click to collapse
it doesnt have flashing options
press the power button (not hold, just press) and it should say that its flashing the image.
(look in the center of the screen, there should be a line of text that says something)
DO NOT TURN OFF YOUR PHONE TILL ITS DONE FLASHING

Btw just chiming in case it comes up as it did in the past. If you use Swapper app and have a swapfile image located in the fat32 area, it would cause DC issues or not connect right, back then it never hit me that the swapfile was being torn away from a system that was looking for it, which then gave me corrupt sd errors. (Granted it wasnt) but yea, just another thing to look out for to those using a image file still for swap.
Also how did your flashing go?

Mounting the SD..... Disconnected?

Okay so here's the run down:
I've been having this problem with my G1 for awhile now, I've been connecting it to my computer, selecting Mount and it all works like normal. I go to my computer -> "Andrizzle" and then I can see all the folders. It's only when I attempt to modify anything in the SD Card that it will then disconnect and my phone acts like I chose to disconnect, allowing me to select mount again.
It's really annoying because now I have to take the SD card out, put it in a SD reader and then do it from there. Although it's not a HUGE hassle, it's still an unnecessary step that I'd like to solve. I've been trying to find a problem similar to this and couldn't find the right way to word it, nor could I find anyone with this issue in a thread. If someone has already solved this problem please direct me to it, otherwise I'm here anxiously awaiting some divine intervention!

instead of divine intervention, you get me, sorry life's a *****
This kept happening to me also, but my problem was on ubuntu, It was kicking me off because it was mistaken my phone for my ipod, I flashed a different rom and rebooted my computer and that did the trick for me, but you have prob already tried this......right?

i was going thru this ealier today. jus to to recovery and fix the file systems option will fix it believe it or not

So wait how exactly do I do that?
I know how to get to the recovery mode but there's a setting I need to change?

Nevermind.
That didn't solve it either

Bump?
Any help from anyone? This is a seriously annoying issue to have

What ROM are you using? What OS?
Give a little more details on your setup

I had the same problem today
I just powered down, then removed the sdcard and put it back in then rebooted. Then it was just fine. My guess is the contacts were just miss aligned.

I was on the Cyanogen STABLE 4.0.4 but am now currently on the Experimental version.
I have USB Debugging on and i've tried other SD cards. I don't know what the problem is. Any other information you need? I really want this to be fixed it's very annoying when I'm trying to do anything

i actually cannot remember the last time i tried to mount my sdcard while my phone was up and running (i.e. not in recovery), i always use adb bc it makes life better.
try to mount it in recovery with ums_enable and ums_disable to mount and unmount the sdcard respectively. if those work then it may be something that will not allow the phone to mount the sdcard when it is fully powered up (i.e. not in recovery).
i use to get a problem where it would mount then quickly unmount the sdcard. i usually just had to either try it a lot, or use my card reader.

I tried going into recovery and doing so,
it still didn't transfer the file.
I can see it in the Explorer, I can browse all the folders and such, look at pictures / videos / music but when I try to move anything around or transfer a file over it stops running.
Any ideas?

My phone says sd card removed

It happened yesterday when I upgraded to xrom. I have formatted and repartitioned my sd card. Nothing is working. When I connect my sd card to my computer I noticed a lot of weird files were being stored on it. They reappear every time I delete them.
My phone is creating files like this "qxdm_20090910_184004_3.dm" (32 megs!)

hmm....very interesting... reboot into recovery and repair the ext files? it might work. most likely not, but its worth a shot.

I though about trying that but I don't have cyanogens recovery .

Mine just did the "sd card has been removed" thing half an hour ago.
I just copied a new theme .zip to my sdcard and then rebooted into recovery.
I could not apply the update since it could not mount the mmcblk0p1 partition. When boot all the way up to android i get the icon saying that the sdcard has been removed.
i just did an adb push of a file to my /sdcard from the recovery console and it returned no errors...but i cannot see any files on the card.
wtf.
Any ideas?

Yeah my problems still not fixed. I have searched the XDA, forums, Google, none have offered any solution. I have found a lot of people with this same problem.

are you using swapper? if you dont turn it off, this could happen.
i would recommend getting cyans recovery image, it has a lot of tools to debug.
get a live cd of linux/gparted and see if you can see all your partitions. if not, your sd card is most likely dead. try reformatting. if that doesnt help, you may need to get a new card.
if it does show up on your pc, but doesnt work on your phone, then post here again

Have the same problem. Got it right after updating cyanogenmod 4.1.2 I've also been looking for answers and I think I'm just gonna get a new one

I have never used swap. I tried installing cyans recovery image through terminal but it can't find my sd card. I can still update my rom through jfs utility. My sd card works perfectly fine on my computer.

Something like this happened to me a while ago. It first said Sdcard was damaged and i couldnt access it via any file manager. I rebooted and turned out all my apps went up in the air and dissapeared and my fat32 partition was gone to. i reccomend backing up your sdcard and reformatting your card then go froom there

I have already tried all that. Nothing so far has worked :-(. Man this is horrible. I can't even take pictures!

[Q] Help! Corrupted internal SD Card and can't find a way to wipe

First, some background:
I've had the S for 2 months now and about a month ago I applied JG5/Modaco r2 and Mimocam lag fix. All was well, 1800+ benchmark figures and no lag at all. That was until a few days ago....
As I was reading on the device, a number of errors started to pop up, force closes, etc. It stopped responding completely so I took the battery out and rebooted. Straight away I was hit with multiple force close and 'process stopped unexpectedly' messages. Basically, it was an unusable brick.
When I took the SD card out the errors were different so, figuring it was related to the Mimocam fix, I decided to undo it. I removed the symlink to the sd card and copied everything to the local data directory.
That didn't work, so I did a hard reset. Which also didn't work. Worse than that, I now can't get the phone to connect in any way to the PC so can't reflash and I can't access any settings on the phone because the error messages keep appearing and obscuring the screen.
Last thing I tried was repartitioning the SD card to see if the ext3 partition was corrupt and that hasn't helped either.
Which is where I am now. What I really want to do is wipe the internal SD and effect a total factory reset but I can't think of any way to do it. I can't access the phone through adb (device not found), Kies (keeps trying to connect but never does) and I can't do it through the phone. I also can't send it back because it has 'flashed rom' written all over it, especially when a root request pops up in the background.
I'm all out of ideas, short of trying to degauss it somehow.
Help! Please!

You cant get it into download mode ?

Kilack said:
You cant get it into download mode ?
Click to expand...
Click to collapse
Or recovery mode: format sd card, clear cache etc ?

Turn the phone off, hold Home + Vol -, then press Power.
I don't see how you can get error messages there...

Doesn't work, I can't get it in to recovery mode. Neither vol up or down work using the 3 button hold. I've tried repeatedly and it just boots as normal, although the animation doesn't display while it boots but it does play the audio.

So I take it I'm f***ed then?

bumping this up and subscribing. I hope you find a solution soon, man.

if you know what your firmware was, get it from samsung-firmwares, get odin, and flash your phone. maybe that will solve your problem.
Keep in mind that I wont be responsible if your phone gets bricked if you mess up the procedure (however the chances of it being bricked is very less if you follow the instructions properly).
search the forum for flashing via odin.

emclondon said:
if you know what your firmware was, get it from samsung-firmwares, get odin, and flash your phone. maybe that will solve your problem.
Keep in mind that I wont be responsible if your phone gets bricked if you mess up the procedure (however the chances of it being bricked is very less if you follow the instructions properly).
search the forum for flashing via odin.
Click to expand...
Click to collapse
He said he cant get it into download mode so would be quite hard to flash with odin then...

No, I've tried over and over and d/l mode doesn't work. The phone just reboots.

LeeJS said:
No, I've tried over and over and d/l mode doesn't work. The phone just reboots.
Click to expand...
Click to collapse
Try the Vol + Recovery mode. The timing is a bit tricky.
On my phone, if I keep Vol+, Home and Power button held down, the phone goes into a reboot loop (it keeps showing the logo, blank, logo, blank). After the logo appears the 2nd time, wait 1 second then release the Power button. Then it goes into the Recovery mode.
If you can't get it to work, try it without the USB/power plugged in as well.

Tried settings/sd card and phone storage/unmount internal sd/format? Or u could do settings/security/factory reset
Sent from my GT-I9000 using Tapatalk

I can't really try that because, as I said, I can't get past any of the error messages that pop up on the phone.
Have had to bite the bullet and take it in to T-mo for a repair and hope they don't notice
Will find out in 28 days.

I had a similar problem with JPC. After a while both the internal and external sd cards crapped out. After pulling the external sd and many tries I was able to boot into recovery mode where it says something like E: cant mount etc.
After pulling the ext sd card I was able to get into download mode and downgrade to JM7 with odin. After formatting with odin. It took two tries.
I still don't have access or storage on both the int and ext sd. I have roughly 2gb storage on the internal non-sd memory of the phone (i am not sure what it is but its enough to run android and I can make calls).
I can't install apps use the camera or anything that uses either of the sd cards for storage.
I did try a new sd card that was installed on the phone when it was stock FW but it doesnt work either.
I have a thread posted about it.

LeeJS said:
First, some background:
I've had the S for 2 months now and about a month ago I applied JG5/Modaco r2 and Mimocam lag fix. All was well, 1800+ benchmark figures and no lag at all. That was until a few days ago....
As I was reading on the device, a number of errors started to pop up, force closes, etc. It stopped responding completely so I took the battery out and rebooted. Straight away I was hit with multiple force close and 'process stopped unexpectedly' messages. Basically, it was an unusable brick.
When I took the SD card out the errors were different so, figuring it was related to the Mimocam fix, I decided to undo it. I removed the symlink to the sd card and copied everything to the local data directory.
That didn't work, so I did a hard reset. Which also didn't work. Worse than that, I now can't get the phone to connect in any way to the PC so can't reflash and I can't access any settings on the phone because the error messages keep appearing and obscuring the screen.
Last thing I tried was repartitioning the SD card to see if the ext3 partition was corrupt and that hasn't helped either.
Which is where I am now. What I really want to do is wipe the internal SD and effect a total factory reset but I can't think of any way to do it. I can't access the phone through adb (device not found), Kies (keeps trying to connect but never does) and I can't do it through the phone. I also can't send it back because it has 'flashed rom' written all over it, especially when a root request pops up in the background.
I'm all out of ideas, short of trying to degauss it somehow.
Help! Please!
Click to expand...
Click to collapse
am wondering, did your phone ever work with the three button mode to enter download/recovery ? or did you always flash using "adb reboot recovery" ?

solipsism said:
I had a similar problem with JPC. After a while both the internal and external sd cards crapped out. After pulling the external sd and many tries I was able to boot into recovery mode where it says something like E: cant mount etc.
After pulling the ext sd card I was able to get into download mode and downgrade to JM7 with odin. After formatting with odin. It took two tries.
I still don't have access or storage on both the int and ext sd. I have roughly 2gb storage on the internal non-sd memory of the phone (i am not sure what it is but its enough to run android and I can make calls).
I can't install apps use the camera or anything that uses either of the sd cards for storage.
I did try a new sd card that was installed on the phone when it was stock FW but it doesnt work either.
I have a thread posted about it.
Click to expand...
Click to collapse
Did you ever find a solution to this problem?

mkurzum said:
Did you ever find a solution to this problem?
Click to expand...
Click to collapse
It is posted in several threads in all of the 19000 forums that there is no fix for this. Your only option is to send it in for repair.

mkurzum said:
Did you ever find a solution to this problem?
Click to expand...
Click to collapse
it would be nice if there was a way.
I agree with Electroz.
there is a new software out by Samsung
new PC Studio, it comes with a feature to "Emergency Restore"
you can try that, and see if that does anything to the internal SD
links are on the SGS wiki, click my link

AllGamer said:
it would be nice if there was a way.
I agree with Electroz.
there is a new software out by Samsung
new PC Studio, it comes with a feature to "Emergency Restore"
you can try that, and see if that does anything to the internal SD
links are on the SGS wiki, click my link
Click to expand...
Click to collapse
I'll give it a shot, downloading now.
I'm not sure where to send my phone in, I called samsung, they sent me to bell, but I bought my phone from best buy and I'm with fido...

It sees both drives, but that's about it, when I try to click on them it just says "insert the disk into drive ..."
There has to be a way to format the internal card with a third party application. I'm gonna keep looking.

[Q] Internal storage and ext sd wont read.

Ok first off I have read through a lot of different forums from here and different websites. Could not find a solution.
MY cappy was rooted and I was running cm9 on it for a while working great.. decided to give cm 10.1 a try. Well it worked for about 2 1/2 months. doing the updates that came out every day. Then the other I was playing a game on it. I stoped the game unplugged the phone from the wall charger went outside to smoke and went to check the phone. It was a black screen where it was semi light up though.
I of course tried hitting the power about 15 times no response. So I took out the battery and put it back in. It rebooted into recovery. So I hit reboot phone. Went back into recovery. Went in cleared cache and dalvik cache rebooted. Went back into recovery, so from there I went to install zip from sd card. there was nothing on sd card.
I then put it into download mode and using odin I brought it back to stock 2.3.4 after odin had suceeded it installed everything on phone. But it came with error no internal storage found. It booted fully. So then I tried heimdall one click it then did the same thing I cleared cache and did a factory reset. IT rebooted fully.
It only works when I have my ext. SD card in the phone though. If i pull my ext sd card out it will go into a boot loop. IF i put my ext sd card into another phone and back to my cappy Itll stay in boot loop. I have formatted sd card put it back into the phone and rebooted. and same thing. bootloop. So I then have to go through the process again to get it semi running. It wont read ext or internal sd card when phone is fully on.
So is there any way to get it to read internal storage again? Or even ext. I dont understand why it will run with the ext.
Any help will be appreciated Thank you.

No one has any answers to this?

bubba1993 said:
No one has any answers to this?
Click to expand...
Click to collapse
Your issue is kinda odd, the only thing I can think of is the EU bug but that's on ICS and you said you were on JB. Either way, could be worth looking into, there's a thread for it in here.

BWolf56 said:
Your issue is kinda odd, the only thing I can think of is the EU bug but that's on ICS and you said you were on JB. Either way, could be worth looking into, there's a thread for it in here.
Click to expand...
Click to collapse
Well I was on cm 9 then went to cm 10.1 4.2 I have no clue I looked into the EU bug tried to fix it no luck. I can put the sd card on it and flash the stock rom and kernel and it will run just without it reading internal or external sd card

the external sd card has probably got your .androidsecure hidden folder on it, possibly more. if your phone had the eu bug, then CM10 recognizes that and switches the mounts.
if you boot the phone, go into terminal emulator, type su, then type mount, and post the output, it would probably give us a clue.

laughingT said:
the external sd card has probably got your .androidsecure hidden folder on it, possibly more. if your phone had the eu bug, then CM10 recognizes that and switches the mounts.
if you boot the phone, go into terminal emulator, type su, then type mount, and post the output, it would probably give us a clue.
Click to expand...
Click to collapse
No the android secure was on the phone, The external sd card was never in my phone but I was trying different things and if i format my sd card put it in the cappy then do the flash. It will work but as soon as I turn the phone off and put the sd card in another phone, It has no files. but when I put it in my laptop it says there is only 5 gb on it but it is an 8gb memory card. Then I have to format twice to get my full memory from it on another phone.