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[Q] "Can't mount sdcard" error in CWM

I've seen this error elsewhere, but no solution. I'm running PRIME 1.4, want to upgrade to 1.6.
- I used the nvflash method. I re-did this, obviously that didn't work.
- I tried formatting the SD card via Windows and via CWM (which didn't work, because it couldn't mount it...duh). Used the default FAT32 settings to format. For others, this seemed to be the fix.
- I CAN read the SD card on the tablet once booted up regularly. I can also mount the storage on my PC.
Any ideas? Thanks in advance.

So I tried a different sdcard (8GB, if it matters). No issues. No idea why this worked, so I guess the mystery is unsolved.

chicagoepicuser said:
So I tried a different sdcard (8GB, if it matters). No issues. No idea why this worked, so I guess the mystery is unsolved.
Click to expand...
Click to collapse
Probably partition of your sdcard. Try reformatting it to another format like NTFS or something?

chicagoepicuser said:
I've seen this error elsewhere, but no solution. I'm running PRIME 1.4, want to upgrade to 1.6.
- I used the nvflash method. I re-did this, obviously that didn't work.
- I tried formatting the SD card via Windows and via CWM (which didn't work, because it couldn't mount it...duh). Used the default FAT32 settings to format. For others, this seemed to be the fix.
- I CAN read the SD card on the tablet once booted up regularly. I can also mount the storage on my PC.
Any ideas? Thanks in advance.
Click to expand...
Click to collapse
In fact, CWM can't real actual SDcard (dock slot), it read the MicroSD only (the tablet slot)
Try putting the zip at the root of the MicroSD, and launch CWM

For me it´s doing the same - can´t mount SD card. I have microSD card that I have formated into FAT/FAT32/NTFS - nothing worked. I try to put it into SD card adapter and nothing too...
Can someone tell us please, where is the problem??? I have root, flashed cwm 3.0.2.8, standart ROM...

monkasko said:
For me it´s doing the same - can´t mount SD card. I have microSD card that I have formated into FAT/FAT32/NTFS - nothing worked. I try to put it into SD card adapter and nothing too...
Can someone tell us please, where is the problem??? I have root, flashed cwm 3.0.2.8, standart ROM...
Click to expand...
Click to collapse
MicroSD needs to be formated into FAT32 and only this format
If you read the post above yours, you would have also seen that the SDcard slot on the dock DOES NOT WORK in CWM

bud77 said:
In fact, CWM can't real actual SDcard (dock slot), it read the MicroSD only (the tablet slot)
Try putting the zip at the root of the MicroSD, and launch CWM
Click to expand...
Click to collapse
Yes, did this. I wasn't messing around with the dock, just the microSD in the tablet itself. And yes, the .zip was in the root directory--though it's not like I was able to get this far. I was not even able to see the root directory, at all.

chicagoepicuser said:
Yes, did this. I wasn't messing around with the dock, just the microSD in the tablet itself. And yes, the .zip was in the root directory--though it's not like I was able to get this far. I was not even able to see the root directory, at all.
Click to expand...
Click to collapse
Plug it in while android is running, and check if the MicroSD is seen in /removable/MicroSD
If, yes, that's pretty weird. If not, try another MicroSD

I had the mounting issue as well. But I formatted my micro SD card with SD Formatter (I am not allowed to post URL as a new user ), then it can be mounted.

myode is right, use SD Formatter 3.0 will fix your problem.
It use low-level format, where windows format don't.

I came across (i can't remember where exactly) some people swear that by formatting the microsd card in a android phone, the card no longer exhibit abnormal behaviour in the tf101.

[Q] Why Can't I Mount SD Card in CWM?

I tried to install the newest version of prime by micro sd card in cwm. Everytime I try to install zip from sd it says error cant mount sd card. I have installed it before without any issues. I formated sd card and tried to do again. no go. I then restarted tab to see if it was showing on tool bar and it was and showed the zip in sd. I then tried to mount in cwm and it had error again. I decided to unroot and start from scratch. still same issue in cwm. please tell me what the issue is.

This happens when your sdcard is not propperly formated. Try THIS

Format it as fat32 and everything will be alright!
Sent from my Transformer TF101 using Tapatalk

AllanJacques said:
Format it as fat32 and everything will be alright!
Sent from my Transformer TF101 using Tapatalk
Click to expand...
Click to collapse
I'm more inclined to believe PhatUgly on this one. I've formatted some microSD cards FAT32 and they didn't mount correctly. Did just about everything I could to remove and restore volumes, reformat, etc. Nothing worked, but it may have been a bad card. Or, it could be that there's more to it than just formatting. I'll have to try it with the SD Formatter linked in #2 above and see.

Im having similar issues as well. I got my tf for christmas (woohoo) but have had nill success with full size sd cards, and as a note I did update to the latest firmware before anything, that may be related.
Ive tried rebooting, formatting fat32 and ntfs, ive tried taking my working 32gb microsd, putting into an adapter and still wont, or any combination of things ive mentioned. I tried the above mentioned sd formatter with no luck.
Also of note, this is the sd card I got that works everywhere else but my tf:
http://www.bestbuy.com/site/SanDisk...skuId=9783958&st=sandisk ultra 32gb&cp=1&lp=1
Any other options other than RMA?

sd card - not working

hi there
i have rooted my device and
after that I install the jaggy rom.
now I have the problem:
my explorer don't find my sd card
my pc don-t find the sd card over usb
but I can install zip from sdcard!
whats the problem?? please help me, I tried everything but nothing works.
PICO PVT SHIP S-ON RL
HBOOT-1.07.0000
RADIO-1.18.80.18
Jun 7 2012...
Pico CVW-Based Recovery v5.0.2.
sry for my english but I hope you understand me

try removing and reinserting card

Backup sd card then format it. Let me know then.
Sent from my WT19i using xda app-developers app

rachit.rc96 said:
Backup sd card then format it. Let me know then.
Sent from my WT19i using xda app-developers app
Click to expand...
Click to collapse
okey remove and reinsert and format (fat32) don't work

suggestion
Try inserting it in a NON smartphone and see if it recognises....even a linux laptop is worth a try....ATB :good:

ramo1989 said:
Try inserting it in a NON smartphone and see if it recognises....even a linux laptop is worth a try....ATB :good:
Click to expand...
Click to collapse
okey the card is recognized without the smartphone...
now I removed the ext4 partition and format it again (fat32)
it works, my phone found the sd card
but now I don't have a ext4 partition... do i need one??
thanks at all!!!!

jenius85 said:
okey the card is recognized without the smartphone...
now I removed the ext4 partition and format it again (fat32)
it works, my phone found the sd card
but now I don't have a ext4 partition... do i need one??
thanks at all!!!!
Click to expand...
Click to collapse
Only if you want to remove problems like low internal memory and want to use A2SD

My phone doesn't detect it either.
at start it gives small card with ! mark.
I tried formatting the card wholly with fat32,
I even tried making different partitions fat32+ext4.
In both ways my phone doesn't detect the memory card.
But when I do the update in recovery mode it updates through sd card.
My memory card is perfectly working on PC and other devices.

Try using the partition sd card option in recovery if you want to use Link2SD, A2SD or S2E.

Guys, do the cards ext2 or 3 , not 4. Don't know why but...... It worked for me. And if you partition them, make both partitions primary.

shortyoko said:
Guys, do the cards ext2 or 3 , not 4. Don't know why but...... It worked for me. And if you partition them, make both partitions primary.
Click to expand...
Click to collapse
Thank you very much..I had the same problem, I formatted my SD card to ext3,fat32 and a swap partition and Wolla..its working fine:victory:.

There are some issues with ext4 partitions.
ext4 partition are said to be better but they might have some problems.
So if you encounter any, format it completely and delete all partitions. Using your phone recovery to make partition would be better.
Sometimes your second partition(i.e. sd-ext) is not detected by your recovery, and your main fat32 is works fine. Well that happened with me and i searched for solutions for long time. But did get any.
Later i fixed it by flashing the last cwm recovery with which the sd-ext partition was getting detected. Seems like the new version of recovery was the problem. Or something else, I don't know.

[Q] I've got a hell of a problem.

I've got a Ver. S3 and a new 64GB class 10 Micro SD card. I can't get the phone to mount the card. The phone is stuck on the Galaxy S3 screen. The phone has been wiped. I had hoped that I could get the phone into recovery and pull a rom off the card I would be OK. It will go into CWM but it won't mount the card. I formatted the card under FAT32 on the PC. It has FAT as default, NTFS, FAT32 and exFAT. If I can load a downloaded rom and gapps I think I can get this thing going. Right now it doesn't look good. Any Ideas? I can't format with the phone since it can't mount the external card. Again, does anyone have an idea about what to do?

ergon said:
I've got a Ver. S3 and a new 64GB class 10 Micro SD card. I can't get the phone to mount the card. The phone is stuck on the Galaxy S3 screen. The phone has been wiped. I had hoped that I could get the phone into recovery and pull a rom off the card I would be OK. It will go into CWM but it won't mount the card. I formatted the card under FAT32 on the PC. It has FAT as default, NTFS, FAT32 and exFAT. If I can load a downloaded rom and gapps I think I can get this thing going. Right now it doesn't look good. Any Ideas? I can't format with the phone since it can't mount the external card. Again, does anyone have an idea about what to do?
Click to expand...
Click to collapse
Can you get it into download mode? If you can do that then you can Odin back to stock and start from square one. Have you tried another card? That may work.
I just flashed the latest ROM five minuets ago and am finally getting thirty hours of battery time! This is sick!!

Follow section 6 of this guide
http://forum.xda-developers.com/showthread.php?p=28530394
Sent from my SCH-I535 using xda app-developers app

Trouble with 64gb SD card

Anyone have this card http://www.amazon.com/gp/aw/d/B007W...-5410429?ref_=pe_175190_21431760_M3T1_SC_dp_1 or any 64gb SD card? I'm having a problem getting cwm to recognize it. I already reformatted it and still it does not work in cwm. Anyone know anything about this? My 32gb card works just fine
Sent from my SCH-I535 using xda app-developers app

Try formatting on a Mac. I have that card, tried three PCs with no luck but works perfectly after formatting on Mac using FAT.
Sent from my SCH-I535 using xda premium

I guess cwm does not support exfat which the gs3 defaults to when formatting 64gb cards. I found out here http://forums.androidcentral.com/sp...ting-roms-hacks/184708-64gb-micro-sd-cwm.html I need to partition the card with a program. I'll do that tomorrow I'm going to bed lol
Sent from my SCH-I535 using xda app-developers app

cell128 said:
Anyone have this card http://www.amazon.com/gp/aw/d/B007W...-5410429?ref_=pe_175190_21431760_M3T1_SC_dp_1 or any 64gb SD card? I'm having a problem getting cwm to recognize it. I already reformatted it and still it does not work in cwm. Anyone know anything about this? My 32gb card works just fine
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
Format to fat32 and it should work
Sent from my Galaxy Nexus using xda premium

cell128 said:
Anyone have this card http://www.amazon.com/gp/aw/d/B007W...-5410429?ref_=pe_175190_21431760_M3T1_SC_dp_1 or any 64gb SD card? I'm having a problem getting cwm to recognize it. I already reformatted it and still it does not work in cwm. Anyone know anything about this? My 32gb card works just fine
Click to expand...
Click to collapse
One of those "believe it or not" things: the SDXC (SD eXtended Capacity = 64GB or more) specification says that the default (factory) format is exFAT. The GS3 recognizes both exFAT and FAT32, but some ROMS do not support exFAT due to Microsoft's funky licensing.

cell128 said:
I guess cwm does not support exfat which the gs3 defaults to when formatting 64gb cards. I found out here http://forums.androidcentral.com/sp...ting-roms-hacks/184708-64gb-micro-sd-cwm.html I need to partition the card with a program. I'll do that tomorrow I'm going to bed lol
Sent from my SCH-I535 using xda app-developers app
Click to expand...
Click to collapse
You don't need to partition it. You need to format it to Fat32 as was mentioned.

I am now on my 3rd 64GB MicroSD, the same one in OP.
It works when I get it, but it preformatted as exFat, which wont work with ROM.
The first 2 SDs I used EaseUS Partition to format as Fat32. Format went fine, but when I went to place files on card, card unmounted. This last one I used Ridgecorp’s Fat32Format, but same problem.
When I insert card, Win7 sees it, but if I go to format/write it disconnects.
Before I send this third one back to amazon, any ideas how to format it?
FYI, I took the last one to a frien with a mac to see if he could fix it, after i tried to format Fat32, but no luck.

nathan951 said:
I am now on my 3rd 64GB MicroSD, the same one in OP.
It works when I get it, but it preformatted as exFat, which wont work with ROM.
The first 2 SDs I used EaseUS Partition to format as Fat32. Format went fine, but when I went to place files on card, card unmounted. This last one I used Ridgecorp’s Fat32Format, but same problem.
When I insert card, Win7 sees it, but if I go to format/write it disconnects.
Before I send this third one back to amazon, any ideas how to format it?
FYI, I took the last one to a frien with a mac to see if he could fix it, after i tried to format Fat32, but no luck.
Click to expand...
Click to collapse
Yea, I believe that's the same card I have(had for working on 3 1/2 months now) and I used the Ridgecorp GUI utility in this thread, http://forum.xda-developers.com/showthread.php?t=1773735 to format it as soon as I got it.
I've loaded it with music and continue to play said music all the time, use my ext for all my ROM downloading and storage. I access it all the time thru the phone and computer with no problems attributed to the card. (Some ROMs screw with my computer seeing my phone period)

Surprise! TW UI Did the trick!
S'up Crew
I don't know if this would apply to anyone on this thread but I bought a SanDisk 64GB MicroSDXC and my SGS3 Wouldn't recognize the card and all.
At the time I was running CM10 Stable.
After trying several different methods found around the forums (both here and external) nothing worked.
W7 would only recognize it as a 32GB because of OS limitations and with every single third party software I tried it was always the same thing (32GB only).
So on a whim I decided to try a slightly different approach.
I flashed a backup I had of the Original Touch Whiz UI I had laying around back onto the device. Shoved the SD card into it and LO and BEHOLD.. It recognized the card.. Erased the Contents and Formated it properly!
I went into Titanium Backup to see if it actually worked and there it was..
63.xGB.. Woohoo!
So apparently CM has problems seeing a 64GB MircoSDXC correctly and the Stock Touch Whiz UI OS works nicely to see it and format it.
Hope this helps the next person who reads this!

I formatted my 64GB class 10 card in my Mac to fat32 and it has worked fine since.
CWM sees it as that size, TWRP does, both my Mac and PC do.
Sent from my SCH-I535 using xda app-developers app

So I formatted my 64gb micro to Fat32. PC recognizes it at 64gb, but I can't get it to transfer any files to it. Says there's no space available. What gives?
Sent from my SCH-I535 using xda premium

What type card is it? Also when trying to transfer files is the card in the phone or straight to the computer via micro SD adapter ect....
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