[Q] internal sd not showing up - Samsung Galaxy R i9103

Hey guys
So I'm not sure what I did wrong but after updating to the newest version of omni I cant seem to get the internal sd to show up in the file browser. The camera wont work and Swiftkey keyboard says I need to insert a card or "ensure that your sd card is not shared as a disk drive via a usb connection"
I think it might be something related to the fact that I mounted as a USB disk using "phils touch screen rom installer thingy"
What do I do?
Thanks and let me know if you need more info...

mfisher0 said:
Hey guys
So I'm not sure what I did wrong but after updating to the newest version of omni I cant seem to get the internal sd to show up in the file browser. The camera wont work and Swiftkey keyboard says I need to insert a card or "ensure that your sd card is not shared as a disk drive via a usb connection"
I think it might be something related to the fact that I mounted as a USB disk using "phils touch screen rom installer thingy"
What do I do?
Thanks and let me know if you need more info...
Click to expand...
Click to collapse
You can go to recovery and remount sdcard. but I hardly think it is linked with the problem.
Anyway, Re-flash stock, flash Omni over it. Done!

Related

Disk Drive

Hello everyone, I am having a problem trying to figure out how to get my Xoom to hook up as a disk drive. It only mounts up as a media device so that I can ONLY xfer music and images. I am trying to drop a CM9 rom on to my SD card. I remember when I rooted it that I had to push the files to the Xoom but I somehow forgot how to do it :O Didn't know if there was any way or just have to push the file to it...
Any help would be greatly appreciated much!
The rom that I currently have is as followed:
[ROM][Nightly][ICS] Team Eos WiFi Nightlies (Wingray/MZ604)
Nickitt said:
Hello everyone, I am having a problem trying to figure out how to get my Xoom to hook up as a disk drive. It only mounts up as a media device so that I can ONLY xfer music and images. I am trying to drop a CM9 rom on to my SD card. I remember when I rooted it that I had to push the files to the Xoom but I somehow forgot how to do it :O Didn't know if there was any way or just have to push the file to it...
Any help would be greatly appreciated much!
The rom that I currently have is as followed:
[ROM][Nightly][ICS] Team Eos WiFi Nightlies (Wingray/MZ604)
Click to expand...
Click to collapse
Why not just use an adapter or card reader and drop it directly from your pc?
okantomi said:
Why not just use an adapter or card reader and drop it directly from your pc?
Click to expand...
Click to collapse
I did, but when I go into recovery it does not show up. When I try to click on, install .zip from sd card, nothing is in there.
Its weird, when I click on "Xoom" from "my computer" I can either choose SD card or Internal storage, once I drop a files into my sd card and try to find it on my Xoom, its totally missing, but still on my computer...
I tried going into recovery and keeping the Xoom connecting and mounting to USB storage, but when I do that, it recognizes it in my computer as "disk G" and when I click on it it says please insert a disc etc.
I am totally lost and totally irritated, I just want to flash CM9!!!!!!!!!!!!!
Can you not download the CM9 directly onto your Xoom from their website without having to use your PC? The reason I'm asking is that I also had loads of issues when connecting the Xoom to the PC or Mac, and having to take out the SD card and pop it into a card reader is also a pain as you have to turn off your Xoom first. By far the easiest solution for me was just to download CM9 directly onto the Xoom's internal memory and then manually move it to the external SD card. Easy peasy...
In command prompt
Adb push <filename> <xoom path>
Example:
adb push cm9.zip /mnt/sdcard/CM9-Files/
That assumes either adb is in your path and your have changed to the directory of the file you are pushing...or...adb is in the same directory as the file being pushed.
Sent from my MB860 using xda premium
slonn said:
Can you not download the CM9 directly onto your Xoom from their website without having to use your PC? The reason I'm asking is that I also had loads of issues when connecting the Xoom to the PC or Mac, and having to take out the SD card and pop it into a card reader is also a pain as you have to turn off your Xoom first. By far the easiest solution for me was just to download CM9 directly onto the Xoom's internal memory and then manually move it to the external SD card. Easy peasy...
Click to expand...
Click to collapse
Why do you have to turn your xoom off to take the SD card out? Just go to settings>storage and scroll down to your sdcard and unmount it then take it out. Just tested it and it works fine.
Sent from my MB860 using xda premium
Thank you guys I figured it out and am now happy! Lots of love!
Sent from my Xoom using xda premium

How to flash a ROM with out USB

I've done a very silly thing and fear I may have bricked my phone
A little while ago my phone's USB connection kicked the bucket and in a rather foolish attempt to get rid of everything I re-formatted the lot and now have a completely non-functioning phone
I have a Samsung Galaxy S (GT-I9000) and had "ClockworkMod Revovery v2.5.1.3" installed with a "Voodoo Lagfix" when things started to go a little funky. Wanting to remove any trace of hackery before sending the phone back for warranty I booted into recovery mode and reformatted every partition I could, one after the other, only to discover that not only did this not remove the hacked boot-loader but it completely rendered my phone unusable! Now, without any image installed and not having a functioning USB connection I've been unable to flash a working ROM back again.
I do, however, still have a working ClockworkMod Recovery and have noted there is an option to "mount /sd-ext" and I am hoping there may be a way to sneak an image on to the phone through the external SD then use "choose zip from sdcard" to re image the phone. Anyone know if this is possible, and if so, would someone care to guide me through the process??
I came across this thread: Can I flash roms from external SD
Where the response was: "Yes, you can, just mount it from the CWM Recovery and you're set." which gives me hope but I'm not able to get there alone.
I have tried mounting the external SD card but get the message:
E:Can't mount /dev/block/mmcblk1p2
(File exists)
Error mounting SDEXT:!​
Any help would be greatly appreciated.
Thanks.
You can copy rom on sd card, and flash in recovery mod
Sent from my Galaxy Nexus using xda premium
thanhhai8888 said:
You can copy rom on sd card, and flash in recovery mod
Click to expand...
Click to collapse
Thanks for that, I'm just not quite sure how to do it.
As I said I'm not able to mount the external SD card at the moment and even then I'm not quite sure what to do. If I do manage to mount it will it then be possible to navigate to the extranal SD with the "install zip from sdcard"?
In the mean time I have come across this nice looking tutorial for flashing to ICS but it says "Copy the downloaded ROM to your phone’s internal SD card (not microSD card)" which for me, sadly, is not an option :,-(
By the way, I'm not particularly fussed wich version of Android I managed to flash, I just want to be able to use my phone again.
Hmmm,
After more digging I've come to understand more about what I have done...
It would appear that what I did was foolishly reformat my system partition with out having another ROM to replace it - but it seems I may well have narrowly avoided formatting the boot partition.
Since doing this I have come across this extremely good advice:
Take extreme care with this option as formatting any of these partitions will result in losing all data on them, especially the boot and system partitions. Formatting the system partition will remove your ROM and leave your phone without an operating system while wiping the boot partition may brick your phone unless you restore or flash another one before rebooting your device.​If only I'd read that before
I've also come to realize the "sd-ext" is not the external SD card at all and is in fact a kind of "extra" partition used especially for flashing ROMs.
So my problem gets deeper...
Is there any possible way to flash a ROM onto a phone with a formatted system partition and no working USB connection?
If there is, I'd dearly like to know how.
You can buy a micro usb card reader to transfer the ROM from your PC to your sd card then flashing it using CWM.
Kerumen said:
You can buy a micro usb card reader to transfer the ROM from your PC to your sd card then flashing it using CWM.
Click to expand...
Click to collapse
Sorry to be so darft but I can't work out how to flash from the external SD.
- By external I mean the removable micro SD card which is actually inside the phone.
I have another phone with which I can put the image on to the micro SD card, I'm just not sure what to do with it once I have it there.
I must be missing something pretty obvious because several people have said "just use CWM to flash from the SD card" but to be honest I just can't work out how to do it :s
I can get the image onto the micro SD card fine, the problem is that once I have the micro SD card with the new image on it in my 'bricked' phone I can't find how to get access to it with CWM?
if you can enter on cwm (home+vol up) you can flash all by your sd card, download a rom for your galaxy s, prefer for the official ones, put the zip on your sdcard, put your phone on cwm and select "install zip from external sd". i hope this help.
Idk if galaxy s have usb otg, but if have you can mount external usb in cwm.
and if you stay without understanding how to do it with cwm, go to galaxy s xda area:
http://forum.xda-developers.com/forumdisplay.php?f=656
i hope you will find a good tutorial in there.
good luck
Hmm, just read a comment some where randomly on the internet:
"Depend on your CWM version, v5 install from external SD card by default. But you can select install from internal SD card too."
Perhaps "install from external SD card" is not supported in my version of CWM (v2.5.1.3 on a Samsung Galaxy S).
Maybe I should go ask about it in the SGS specific section.
dreanmer said:
and if you stay without understanding how to do it with cwm, go to galaxy s xda area:
http://forum.xda-developers.com/forumdisplay.php?f=656
Click to expand...
Click to collapse
Hehe, took the works right out of my mouth.
Thanks.
You essentially NEED adb access to push a rom to internal, as your phone's CWM version doesn't support external-sd card. Can you get ahold of another working cable? This would be the best route.
Thing O Doom said:
You essentially NEED adb access to push a rom to internal, as your phone's CWM version doesn't support external-sd card. Can you get ahold of another working cable? This would be the best route.
Click to expand...
Click to collapse
Thanks, I'm pretty certain it's the phones USB socket that is the problem though. It stopped responding to USB after a camping trip I went on and since then, even when it had a working ROM, I was unable to mount it as external storage. I have tried several cables and a couple of different computers and while it charges fine I was unable to get it to 'connect' as such. I have also checked the main cable I've been using with a different device and the cable worked as expected. When I started to get desperate I scrubbed it with a tooth brush and I even took the phone completely apart to sprayed the port with electrical contact cleaner but alas, it was to no avail.
I'm affraid i'm going to have to resolve this one sans USB
Why don't you buy a new cable ? An USB cable is always useful for daily use..
Kerumen said:
Why don't you buy a new cable ? An USB cable is always useful for daily use..
Click to expand...
Click to collapse
Edit: Oops just realised I'd made the same post twice
I'm cretin the cable is fine.

Blank USB storage or has unsupported file system

Flashing the newest leak failed, and bricked my phone....after doing several different things, I have the phone functioning again, the internal SD card is giving a "Blank USB storage or has unsupported file system" error and I cannot mount it or access it. I have reformatted it from both the OS and from recovery. Cleared caches, all of that, and no joy.
I've been searching for the last day, and haven't found anything useful. And advice on what I can try would be appreciated, or, at the very least, someone that knows what they're talking about just letting me know that it's pretty well screwed.
Thanks
dan828 said:
Flashing the newest leak failed, and bricked my phone....after doing several different things, I have the phone functioning again, the internal SD card is giving a "Blank USB storage or has unsupported file system" error and I cannot mount it or access it. I have reformatted it from both the OS and from recovery. Cleared caches, all of that, and no joy.
I've been searching for the last day, and haven't found anything useful. And advice on what I can try would be appreciated, or, at the very least, someone that knows what they're talking about just letting me know that it's pretty well screwed.
Thanks
Click to expand...
Click to collapse
Are you referring to the "USB Storage" or "external_sd" folder in your internal?
The "external_sd" folder is just that...your external sd card.
The "USB Storage" folder is a feature of the skyrocket that allows you to connect a thumb drive to your phone with a micro USB to USB adapter.
If you do not have a thumb drive attached to the phone this folder will be blank by default.
Is that what you are talking about?
Nantai said:
Are you referring to the "USB Storage" or "external_sd" folder in your internal?
The "external_sd" folder is just that...your external sd card.
The "USB Storage" folder is a feature of the skyrocket that allows you to connect a thumb drive to your phone with a micro USB to USB adapter.
If you do not have a thumb drive attached to the phone this folder will be blank by default.
Is that what you are talking about?
Click to expand...
Click to collapse
That is the error that it gives-- basically, the internal SD card doesn't show up and won't mount. Formatting it, it acts like it does it, does the scan afterwards, and has the same issue. Go to a file browser and it says "no sd card inserted." Go to storage in settings, and it shows device memory (total space 1.97GB), USB Storage is blank, SD Card has "mount SD card" when if touched tries to mount and then apparently fails and goes back to the "mount SD card" text.
If an external SD card is inserted, the only thing that changes is that a "SD card safe to remove" notification comes up.
From recovery, if I try to mount /emmc it says "Error mounting /emmc!" attempting to format /emmc gives the same error.
Have you tried to start from scratch from download mode using odin file?
I'm not at home right now but when I get home I can link you the instructions
EDIT:
Can you get into download mode??
-plug usb into computer(not phone yet)
-Turn off phone
-hold both volume up and down and plug usb into phone, continue holding until you see download mode
-should prompt you to hit the up volume button
-you should now be in download mode
-download this: "Odin one click 4.0.4 from kennethpenn" - http://forum.xda-developers.com/show....php?t=1652679
-make sure Odin sees your phone in one of the COM ports. Start Flash
-if everything works fine you should be on 4.0.4 ICS and you are free to do as you wish
Hope this helps. Kinda used as a last resort. Assuming you want ICS...
Sent from my SAMSUNG-SGH-I727 using xda premium
put it in a computer and check. File system should be fat32. not fat16, fat, or ntfs. I dont believe the phone does an actual format of the sd. I know thats what it says, but I think it means just erase. A real, true format is done after the empty space is partitioned and properly allocated. Ive never seen an unpartitioned sd card sooooo.
Ends said:
put it in a computer and check. File system should be fat32. not fat16, fat, or ntfs. I dont believe the phone does an actual format of the sd. I know thats what it says, but I think it means just erase. A real, true format is done after the empty space is partitioned and properly allocated. Ive never seen an unpartitioned sd card sooooo.
Click to expand...
Click to collapse
It's the internal SD card that's partition that appears hosed-- the built in one that can't be removed. I Downloaded an App that shows the partition table, and all that is listing is:
/mnt/sdcard
(mmcblk0p1) 0.0/0.0MB
/sd-ext
(mmcblk0p2) 0.0/0.2MB
I'm having the same problem. Re-flashing UCLF5 didn't help. I'm about to flash UCLE2, but have no real reason to think it'll work.
Ideas, anyone? The "usb storage" is the internal sd card and can't be removed and stuck in a computer.
groovy9 said:
I'm having the same problem. Re-flashing UCLF5 didn't help. I'm about to flash UCLE2, but have no real reason to think it'll work.
Ideas, anyone? The "usb storage" is the internal sd card and can't be removed and stuck in a computer.
Click to expand...
Click to collapse
You can save your time....I've already flashed to UCLE2, and even back to the original stock, and it doesn't help. Now I'm back to UCLF5.
If I can get it rooted, I may try to edit vold.fstab and mount my 32GB on /mnt/sdcard. I don't even care about the internal space, really, but it'd be nice to have a more elegant fix.
---------- Post added at 05:13 PM ---------- Previous post was at 04:24 PM ----------
fstab edit seems to have worked, at least at a glance. But it'd still be nice to actually fix the internal storage.
Have I tried hooking to a PC? It can tell you allot about the drive after its mounted
Sent from my SAMSUNG-SGH-I727 using xda premium
Ends said:
Have I tried hooking to a PC? It can tell you allot about the drive after its mounted
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
Been trying that-- with debugging on, it appears to be trying to mount but doesn't
groovy9 said:
If I can get it rooted, I may try to edit vold.fstab and mount my 32GB on /mnt/sdcard. I don't even care about the internal space, really, but it'd be nice to have a more elegant fix.
---------- Post added at 05:13 PM ---------- Previous post was at 04:24 PM ----------
fstab edit seems to have worked, at least at a glance. But it'd still be nice to actually fix the internal storage.
Click to expand...
Click to collapse
Could you give me a quick rundown on what you had to do? How you get it to root and the process involved with the fstab edit? I'd appreciate it.
dan828 said:
Could you give me a quick rundown on what you had to do? How you get it to root and the process involved with the fstab edit? I'd appreciate it.
Click to expand...
Click to collapse
I can't post links yet, but if you google 'how root uclf5', the top hit is the guide I used. BTW, I had to apply the icsSuperuser zip from the SD card something like 10 times before it finally took.
Then installed a root browser with built-in text editor (root explorer) and used it to edit /etc/vold.fstab. Make the top of it look like this:
Code:
# internal sdcard
{
storage_struct = cover, "/mnt/sdcard/external_sd","/mnt/sdcard/usbStorage"
ums_sys_path = /sys/class/android_usb/f_mass_storage/lun/file
#discard = enable
#secure_format = enable
android_secure_containers = enable
}
dev_mount sdcard /mnt/sdcard auto /devices/platform/msm_sdcc.3/mmc_host/mmc2/mmc2
# external sdcard
{
ums_sys_path = /sys/class/android_usb/f_mass_storage/lun_ex/file
android_secure_containers = enable
}
#dev_mount sdcard1 /mnt/sdcard/external_sd auto /devices/platform/msm_sdcc.3/mmc_host/mmc2/mmc2
I'm having this exact same issue. No fixes? I'm going nuts here.
USB Folder has never populated
Nantai said:
The "USB Storage" folder is a feature of the skyrocket that allows you to connect a thumb drive to your phone with a micro USB to USB adapter.
If you do not have a thumb drive attached to the phone this folder will be blank by default.
Click to expand...
Click to collapse
This is what I always assumed as well. However, I have never been able to make this work. I also don't know enough to see how it could? (Insert flamage here) To me it would have to link to a dynamic disk that doesn't exist yet and the devices ability to power whatever you plugged in to it.
That said, I still tried it. "....to connect a thumb drive to your phone with a micro USB to USB adapter." ...on many rom/kernal/etc combos as well as trying to mount it in recovery (turns out that "usb drive" in recovery, doesn't mean that folder). So, at least on my phone, the USB Folder has never populated. (Additional flamage here)
I have done my DD on this and am really curious....hmmm
Anyone...?
wantowan2 said:
This is what I always assumed as well. However, I have never been able to make this work. I also don't know enough to see how it could? (Insert flamage here) To me it would have to link to a dynamic disk that doesn't exist yet and the devices ability to power whatever you plugged in to it.
That said, I still tried it. "....to connect a thumb drive to your phone with a micro USB to USB adapter." ...on many rom/kernal/etc combos as well as trying to mount it in recovery (turns out that "usb drive" in recovery, doesn't mean that folder). So, at least on my phone, the USB Folder has never populated. (Additional flamage here)
I have done my DD on this and am really curious....hmmm
Anyone...?
Click to expand...
Click to collapse
I don't believe that is what was meant. They mean using your phone as a usb thumb drive so that you don't need to carry around a usb thumb drive. Simply connect your phone to your computer via the usb cable and mount the drive.
I'm having a similar issue but I'm unable to connect my phone to my computer, it's complaining about "security policy restricts use of external sd card". I'll keep searching or maybe create a new thread if I can't find an answer.
BUMP
Nantai View Post said:
The "USB Storage" folder is a feature of the skyrocket that allows you to connect a thumb drive to your phone with a micro USB to USB adapter.
If you do not have a thumb drive attached to the phone this folder will be blank by default.
Click to expand...
Click to collapse
wantowan2 said:
This is what I always assumed as well. However, I have never been able to make this work. I also don't know enough to see how it could? (Insert flamage here) To me it would have to link to a dynamic disk that doesn't exist yet and the devices ability to power whatever you plugged in to it.
That said, I still tried it. "....to connect a thumb drive to your phone with a micro USB to USB adapter." ...on many rom/kernal/etc combos as well as trying to mount it in recovery (turns out that "usb drive" in recovery, doesn't mean that folder). So, at least on my phone, the USB Folder has never populated. (Additional flamage here)
I have done my DD on this and am really curious....hmmm
Anyone...?
Click to expand...
Click to collapse
BUMP:fingers-crossed:
if u can, get back to stock, then c if int sdcard is accesible, if not then it looks like a hardware failure of int sdcard, time for a warranty exchange,
vincom said:
if u can, get back to stock, then c if int sdcard is accesible, if not then it looks like a hardware failure of int sdcard, time for a warranty exchange,
Click to expand...
Click to collapse
Hey, thanks for the reply. But who are you replying to?
I have no prob. trying stock if that's the way.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
wantowan2 said:
Hey, thanks for the reply. But who are you replying to?
I have no prob. trying stock if that's the way.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Click to expand...
Click to collapse
to op

CM10 (Official Alpha) SD Card issue

I recently flashed CM 10 Official Alpha on my AT&T Skyrocket and I've experienced an issue with my SD card. Basically it shows us as my internal storage. Whenever I hook it up to my PC via USB (Windows 7) my internal storage pops up and another disk that I can't access (grayed out). The files I have on my SD card show up whenever I enter recovery mod (Currently on Touch Recovery) but I can't access it through my PC or any other way. I've tried file browsing applications from the market to see if the SD card shows up, but no luck. I also read the change log on their website to see if there was any issues with an SD card and I came up with nothing. I followed every step exactly as posted in the topic when flashing. Is there any way to get my SD card to show up?
Thanks in advanced.
I second this. What I've been doing is copying things onto the internalSD, then using a file manager to get it on external.
Painful, yes, but, I don't think it's ready yet.
Musehk said:
I recently flashed CM 10 Official Alpha on my AT&T Skyrocket and I've experienced an issue with my SD card. Basically it shows us as my internal storage. Whenever I hook it up to my PC via USB (Windows 7) my internal storage pops up and another disk that I can't access (grayed out). The files I have on my SD card show up whenever I enter recovery mod (Currently on Touch Recovery) but I can't access it through my PC or any other way. I've tried file browsing applications from the market to see if the SD card shows up, but no luck. I also read the change log on their website to see if there was any issues with an SD card and I came up with nothing. I followed every step exactly as posted in the topic when flashing. Is there any way to get my SD card to show up?
Thanks in advanced.
Click to expand...
Click to collapse
Musehk said:
I recently flashed CM 10 Official Alpha on my AT&T Skyrocket and I've experienced an issue with my SD card. Basically it shows us as my internal storage. Whenever I hook it up to my PC via USB (Windows 7) my internal storage pops up and another disk that I can't access (grayed out). The files I have on my SD card show up whenever I enter recovery mod (Currently on Touch Recovery) but I can't access it through my PC or any other way. I've tried file browsing applications from the market to see if the SD card shows up, but no luck. I also read the change log on their website to see if there was any issues with an SD card and I came up with nothing. I followed every step exactly as posted in the topic when flashing. Is there any way to get my SD card to show up?
Thanks in advanced.
Click to expand...
Click to collapse
Try astro file manager sdcard show sdcard 0 and sdcard 1 that's how jelly bean treats the sdcards.
Sent from my SAMSUNG-SGH-I727 using xda premium
netomel said:
Try astro file manager sdcard show sdcard 0 and sdcard 1 that's how jelly bean treats the sdcards.
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
That seemed to have worked. Thank you very much!

[Q] External SD Card not recognised on computer

Hi. This is my first post so please forgive me. I just installed the new KitKat Custom ROM by Echoed onto my GT-N8020 Galaxy Note 10.1. I have installed many ROMs on many devices with no problems. ROM installed fine as always but now I have a problem. When I connect to my computer via USB I cannot see the external SD card in My Computer. The internal SD is displayed though. I have tried Googling all day with no luck. All I can find is info on the SD permissions problem etc. Has anyone else had this problem or does anyone know how to fix this as I am stumped. Any help is very much appreciated. Cheers
erad2008 said:
Hi. This is my first post so please forgive me. I just installed the new KitKat Custom ROM by Echoed onto my GT-N8020 Galaxy Note 10.1. I have installed many ROMs on many devices with no problems. ROM installed fine as always but now I have a problem. When I connect to my computer via USB I cannot see the external SD card in My Computer. The internal SD is displayed though. I have tried Googling all day with no luck. All I can find is info on the SD permissions problem etc. Has anyone else had this problem or does anyone know how to fix this as I am stumped. Any help is very much appreciated. Cheers
Click to expand...
Click to collapse
when you plug it in, does it show up as usb mass storage device, or as mtp device?
Sd card
Kobro said:
when you plug it in, does it show up as usb mass storage device, or as mtp device?
Click to expand...
Click to collapse
Hi...on the tablet I have 2 options...mtp or camera. I tried both but still not visible on computer. I will check further when I get home from work to check again. Thanks
erad2008 said:
Hi...on the tablet I have 2 options...mtp or camera. I tried both but still not visible on computer. I will check further when I get home from work to check again. Thanks
Click to expand...
Click to collapse
first off, it has to be in mtp mode, not camera to even have a chance.
have you tried other cables/ports/cards? try putting the card in only when the tab is already in the pc, or putting the card in a powered off phone and booting up the phone once its connected, or failing that, just use a micro sd card reader.
you can alos try apps like ums for galaxy s3 (from playstore) and see if it works for you.
To enable Mass Storage mode, do the following:
Download Terminal app
Then type this, and press enter after each line:
su
setprop persist.sys.usb.config mass_storage
reboot
After rebooting, plug it in, mount usb storage. If required, format it.
Thanks guys. Unfortunately I didn't get to try the terminal command as I didn't know about that one. In the end I got rid of Echoes KitKat ROM for n8020 and installed original Cyanogen ROM and voila......all problems gone. Must be a lot of bugs in the Echoe ROM as external SD Card was not visible on computer or even writable to. And 4g was not working.
Thanks for your help guys. I really appreciate it and will have to remember to try your suggestions if this ever happens again. Cheers

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