SD card unmounting

fourthletter

Senior Member
Jun 27, 2009
138
12
48
Edinburgh
My 16GB SD card was randomly unmounting in my phone (Desire HD) I assumed it was a bad card as my PC would not detect it in a card reader. I got a new 16GB card today and it has started randomly unmounting in the phone, I get a warning message and the sd card vanishes.
This does not happen when i use an old 2GB card, the previous 16GB was running in the phone for at least 6 months.

Desire HD running Unofficial CyanogenMod 10.1 by krisjanne

Many Thanks.
 

GuyInTheCorner

Senior Member
Feb 18, 2012
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608
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London
My 16GB SD card was randomly unmounting in my phone (Desire HD) I assumed it was a bad card as my PC would not detect it in a card reader. I got a new 16GB card today and it has started randomly unmounting in the phone, I get a warning message and the sd card vanishes.
This does not happen when i use an old 2GB card, the previous 16GB was running in the phone for at least 6 months.

Desire HD running Unofficial CyanogenMod 10.1 by krisjanne

Many Thanks.
Try a different ROM maybe?
 

GuyInTheCorner

Senior Member
Feb 18, 2012
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London
I did I was originally on AOSP when I switched to Jellybean this started happening but the first thing I did was go back to AOSP. And it make s no difference, it is fine with a 2GB card but keeps losing my now 2nd 16GB card.
You sure the battery cover is on correctly. If not check the SD Card holder.
Last resort is to go fully stock and see what happens.

If the above fails, its a hardware issue
 

fourthletter

Senior Member
Jun 27, 2009
138
12
48
Edinburgh
You sure the battery cover is on correctly. If not check the SD Card holder.
Last resort is to go fully stock and see what happens.

If the above fails, its a hardware issue
Thanks - going back to fully stock was my next plan at the weekend. Is there any form of pre-rooted stock ROM I can use, will going back to stock HTC ruin my bootloader and S-OFF and such things ?
 

Reinaldo33897

Senior Member
Jul 11, 2011
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Atlanta
Thanks - going back to fully stock was my next plan at the weekend. Is there any form of pre-rooted stock ROM I can use, will going back to stock HTC ruin my bootloader and S-OFF and such things ?
Have you tried formatting the SD with the phone and not the computer? Also look for the rooted stock rom for your phone is your best bet, its out there in pd98 zip form. Good luck

Sent from an IceCold Inspire 4G using XDA Premium
 

GuyInTheCorner

Senior Member
Feb 18, 2012
3,515
608
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London
Have you tried formatting the SD with the phone and not the computer? Also look for the rooted stock rom for your phone is your best bet, its out there in pd98 zip form. Good luck

Sent from an IceCold Inspire 4G using XDA Premium
He can't format it if it unmouts can he, lol :D:rolleyes:
The stock ROM isn't in PD98 format, its in a ROM, search for autorotation fixed in Jellybean and that the prerooted stock ROM

TheCorner approves..
That Thanks button ain't gonna push itself!

HTC Desire HD ¦ Samsung GNote 10.1
 

fourthletter

Senior Member
Jun 27, 2009
138
12
48
Edinburgh
I tried going back to stock and it still does the same thing, I noticed the SD card slot and SIM slot are on a daughterboard so I will try replacing it and seeing if it is a hardware issue.
Thank you for all your help.
 

RyanH77

Member
Jan 16, 2013
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I tried going back to stock and it still does the same thing, I noticed the SD card slot and SIM slot are on a daughterboard so I will try replacing it and seeing if it is a hardware issue.
Thank you for all your help.
I had a mounting issue after going from the stock 8GB card to a new 32GB one, all it needed was formatting and job done.. If you can format it in the phone do it, if not, put it in a card reader on the PC, it should open find it.
 

fourthletter

Senior Member
Jun 27, 2009
138
12
48
Edinburgh
I had a mounting issue after going from the stock 8GB card to a new 32GB one, all it needed was formatting and job done.. If you can format it in the phone do it, if not, put it in a card reader on the PC, it should open find it.
Thanks for replying but as i originally posted, I have had a 16GB card since probably last xmas, after going to Jellybean it started vanishing and that card is now dead, will not format in anything, PC card reader,laptop or phone. I got a new one and the phone has started ejecting it again. I assume the phone killed the original and this is not a card fault.
I have formatted the new card in PC,phone and my tablet and the phone is still losing it, it's fine on a PC. I am going to replace the SD card socket daughter board on the phone and hope it isn't a fault any worse than that !
Fingers crossed.
 

sashank

Senior Member
Dec 31, 2010
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Bangalore, KA, India
Download 4ext Recovery Updater from www.4ext.net and flash 4ext Touch Recovery if you haven't already. Then back up your SD card data, boot into recovery, go to 'wipe | format' and format SD card. Then go to 'tools' and run 'check partition alignment' and 'file system check'.

I used to have this problem real bad a long time ago with both an old 8GB card and a new 16GB card. I messed around a bit with all this and fixed it. I've rarely had the problem since. It happens once in a while, and a reboot fixes it. Not frequent anymore though. Also, format SD card in recovery always. I remember that this problem became very frequent for me when I used to format my SD card in PC with different cluster sizes. Don't know for sure if that was the reason or whether it was coincidence, but I suggest you format in recovery. Unless you use TWRP recovery, which just runs an 'rm -rf' command to delete all folders in SD card and doesn't actually format it. 4ext Touch Recovery is the best recovery for the DHD.
 

fourthletter

Senior Member
Jun 27, 2009
138
12
48
Edinburgh
Download 4ext Recovery Updater from www.4ext.net and flash 4ext Touch Recovery if you haven't already. Then back up your SD card data, boot into recovery, go to 'wipe | format' and format SD card. Then go to 'tools' and run 'check partition alignment' and 'file system check'.

I used to have this problem real bad a long time ago with both an old 8GB card and a new 16GB card. I messed around a bit with all this and fixed it. I've rarely had the problem since. It happens once in a while, and a reboot fixes it. Not frequent anymore though. Also, format SD card in recovery always. I remember that this problem became very frequent for me when I used to format my SD card in PC with different cluster sizes. Don't know for sure if that was the reason or whether it was coincidence, but I suggest you format in recovery. Unless you use TWRP recovery, which just runs an 'rm -rf' command to delete all folders in SD card and doesn't actually format it. 4ext Touch Recovery is the best recovery for the DHD.
Thanks I will definitely give that a go today before ordering any parts.
 

fourthletter

Senior Member
Jun 27, 2009
138
12
48
Edinburgh
I tried all the stuff with formatting and partitions and it made no difference to the new 16GB card, strangely my old 8GB card seems to work fine, so really not sure what would cause this to happen, none the wiser but the 8GB card will do fine for now.