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SD card unmounting on its own

Anybody having issues with their SD card unmounting repeatedly?
I would be listening to music or using another app, then I get a notification saying the SD card unmounted unexpectedly. To fix this, I would have to reboot. Sometimes rebooting once doesnt actually solve the issue.
I do have to say that when I boot into recovery (CWM) the card is present and readable (I am able to reflash ROMs from it).
I found similar threads for other devices, but there seems to be no solution offered.
When this problem occured, I was runnning ARHD 3.6.2 (not sure if that has anything to do with it).
Any solutions to this?
Thanks!

Can u tell us which firmware version your on, stock? android revolution XE?

Same here :/
Sent from my HTC Sensation Z710e

ROM: Android Revolution HD 3.6.2
Kernel: 2.6.35.14-Sensation-faux123-v0.2.1+
Radio: 10.58.9035.00U_10.15.9035.02_2
Thanks!

Mine just did this to me tonight. Now when you insert it I see the "Preparing SD Card" then about 2 seconds later "Removed SD Card". I had been using a SanDisk 8 GB class 2 thats been through 2 BlackBerry phones before this one, so I popped the Kingston 8 GB class 4 the phone came with in there and voila, it sees the card. Im thinking my card may have randomly gone belly up on me, but I will know more after I get a reader for my PC.
Just wondering if anyone else has had issues with SD cards randomly doing this with this phone. It seems I've read a lot about SD card problems with these phones while searching, I don't want to have to worry about losing all my data as much as I am now. The card was rock solid for about 3 years in the other phones, and I've had my Sensation less than a month.
~T.J.

This normally happens to me right before I start an app that would read or write into the data in the card: when I start playing MP3s, start games or apps installed in the card, accept a bluetooth file transfer, send a file from the card thru bluetooth, etc
I happens at least once a day. Generally, a simple reboot works to get the card back, but if it doesnt, I would have to open the cover and manually take out then reinsert the card.
I'm pretty sure it's not a hardware issue, though this is the first card I've used on my Sensation (bought brand new for use specifically with the phone).
Does branding of the card have anything to do with it? I admit that I got a brand that was slightly on the cheaper side, but had a lifetime warranty. If it matters, the card is made in Taiwan.
I haven't changed cards, as I'm still hoping this might just be a software bug. The reason I say this is because the very first time this happened, I had installed Always Flash, which I found to be an app that I could do without. I forced stopped the app and uninstalled it, and that's when the bug hit for the first time.
Hope someone knows the answer to this...
Thanks!

That's what happened to me, I opened titanium to do a backup and got a card removed unexpectedly error. The phone has never recognized the card since.
Sent from my HTC Sensation XE with Beats Audio using XDA App

no solutions found, unfortunately....
i just bought a new card
thanks!

ryanisler said:
no solutions found, unfortunately....
i just bought a new card
thanks!
Click to expand...
Click to collapse
I've been having the same problem with my sensation xe. Sometimes it'll be fine for a week or more, and then it may unmount the card randomly 2 or 3 days in a row. Normally I have to shutdown, pull the battery and physically remove and re-insert the card to get it to remount, as just rebooting has never worked for me.
Tonite, even this wouldn't work. I ended up having to boot into 4ext and mount the card in there before rebooting the phone.
I really do hope someone can work out the reason our phones are doing this.
For the record, I'm using ARHD 6.7.0 and a 32g class 10 Strontium card.

anybody found a solution for this?... I also have the same problem. Tried several sd card and stock/no stock roms. Same thing every time.
I think it is a hardware prob.

I had this happen to me before but found a solution for mine. I checked my SD card and it was not locked in it's caseing so it was unmounting randomly. I removed the SD card and replaced making certain it was locked into the caseing and it's never happened again. It's definitely worth a try to check your card and make absolutely sure it's locked into the caseing. Would not hurt to check. For me, this solved my problem. My card was in the caseing but not locked in, this was causing my issue. I wish you the best. I do hope you get this fixed. Hopefully it's only that the card is loose ! Like I said it's worth a try. Best wishes.

I'd try fully formatting the card using gparted. I always do this if I have any suspicion that something may be wrong with a card and its never let me down yet.
Google it, its free and there are videos on YouTube showing how to use it so all it'll cost you is a bit of time, gotta be worth a go......
Sent from my HTC Sensation XE with Beats Audio Z715e

[Q] I have a question regarding my sdcard..

I've searched the forums and all I've found so far is sdcard issues with the evo.. so I apologize ahead of time if there's a thread for this...
I recently received a brand new sdcard.. 16gb class 4 sandisk.. I have formatted the card on both pc and phone(just to be sure everything is clear).. now when I transfer files from my pc to the phone, I only get between 1-3 mb/s.. I've recently reformatted/partitioned my pc, so it's on a clean install.. I've also recently wiped the phone and flashed a new rom.. but it doesn't really matter what rom I use, I still get those slow speeds.. I was at a friends yesterday and transferred files using their laptop and I was getting between 15-17 mb/s transfer speeds.. any ideas as to why I don't get the same on my pc? Thanks to all that may respond!

I used to get slow copy speeds with my Win 7 64bit PC, I don't remember the actual figures. I now use some copy software which seems to have improved speeds. I think it's called Ultracopy.
Sent from my HTC Sensation XE with Beats Audio Z715e using xda premium

Gotcha... well, I'm on win 7 32bit and my friends laptop has windows vista 32bit...so I'm still kind of guessing as to why transfer speeds were much higher on their laptop than they are on my pc.. and I didn't do anything differently when using their laptop as I would my pc..

I think it's a Win 7 issue by the sounds of it, google for Windows 7 slow copy speeds and see what turns up.
BTW, there are SD speed test apps in the Market, give one a try to test your cards speed when in your phone.
Sent from my HTC Sensation XE with Beats Audio Z715e using xda premium

Will do... Thanks UK
Maybe it's a driver issue?? Who knows at this point.. I just know that 1.2mb/s transfer speeds really suck

Just checked which software I use, it's actually TeraCopy (free version) .
http://www.codesector.com/teracopy.php

sometimes its something stupid when it comes to it, it could be not USB 2.0/3.0, could be USB data cable, and can be simply win 7 not caching the sdcard to make it read faster
I had random issue with my phone, if i use my toshiba to transfer i notice its slower than my 4 year old acer with crappy specs
but when i switch my data cable, then i see it fly on transfers

Quakeworld said:
I've searched the forums and all I've found so far is sdcard issues with the evo.. so I apologize ahead of time if there's a thread for this...
I recently received a brand new sdcard.. 16gb class 4 sandisk.. I have formatted the card on both pc and phone(just to be sure everything is clear).. now when I transfer files from my pc to the phone, I only get between 1-3 mb/s.. I've recently reformatted/partitioned my pc, so it's on a clean install.. I've also recently wiped the phone and flashed a new rom.. but it doesn't really matter what rom I use, I still get those slow speeds.. I was at a friends yesterday and transferred files using their laptop and I was getting between 15-17 mb/s transfer speeds.. any ideas as to why I don't get the same on my pc? Thanks to all that may respond!
Click to expand...
Click to collapse
Try use a micro sdcard reader, if the problem still exist, it is either your PC or the card.
if the problem is fixed, it is either your phone or cable

Media Process Restarting? Post your config

This thread is for people with the problem of:
a process called "media" that after the phone boots keeps crashing and restarting. If I kill this process the phone acts normally and I get my usual day usage out of the battery.
Click to expand...
Click to collapse
It only seems to occur on Sense 3.6 and means that the phone ends up remaining in a wakelock state for a 45 minutes to hours in my experience.
I initially thought I had corrupt MP3's or Photos but that doesn't seem to be the case.
These are the posts from another thread with their configuration:
k0zmic said:
I use ARHD but it seems to affect all Sense 3.6 ROM's I've tried including stock. Can you tell me what SD Card you have and do you have a lot of music, photos etc on it?
The issue doesn't occur on Sense 4.0 ROM's.
My workaround was to just disable Media starting automatically using System Tuner (needs root).
Click to expand...
Click to collapse
fourfoot said:
Sandisk 32GB (class 4 if my memory serves my right).
648 Photos (980MB)
568 Music tracks (3.4GB)
Click to expand...
Click to collapse
fourfoot said:
Amazon, about august last year.
I tried a factory reset last night and formatted the sd card, put no media on it but again that process is restarting again this morning. Its supposed to be migrating the media database... But there's no media for it to migrate...
Might try a different sd card
Click to expand...
Click to collapse
ladyhaly said:
Okay. Yeah. My phone does use more battery as well.What does that Media process do anyway and are there any negative effects to just plain killing it?
32 GB SanDisk Class 4
1391 photos
24 videos
124 mp3 files (songs)
Guess this is one of the bugs for Sense 3.6 ROMs. Btw, I factory reset my phone after the update.
Sent from my HTC ChaCha A810e using Tapatalk
Click to expand...
Click to collapse

I tried different sd cards:
Unbranded 16gb class 4 - media process started restarting a few minutes after boot.
Kingston 16gb class 4 - media process didn't start for a few hours (do we know what app starts this?) Then started restarting and keeping the phone awake.
Both occasions the cards had no photos or music on them.

It seems to get stuck in restart mode after Sense crashes. I dont know if you guys noticed but usually after it crashes mobile data geta activated as well. Can else someone confirm?
Sent from my HTC Sensation Z710e using XDA

fourfoot said:
I tried different sd cards:
Unbranded 16gb class 4 - media process started restarting a few minutes after boot.
Kingston 16gb class 4 - media process didn't start for a few hours (do we know what app starts this?) Then started restarting and keeping the phone awake.
Both occasions the cards had no photos or music on them.
Click to expand...
Click to collapse
I suppose that confirms that it's a Sense 3.6 problem rather than our SD cards.
Pikabat said:
It seems to get stuck in restart mode after Sense crashes. I dont know if you guys noticed but usually after it crashes mobile data geta activated as well. Can else someone confirm?
Sent from my HTC Sensation Z710e using XDA
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Click to collapse
For me it starts scanning at boot up as it should but continues and then the MediaDB Migration service constantly restarts.
Mobile data doesn't seem to have an effect on it in my experience.

k0zmic said:
I suppose that confirms that it's a Sense 3.6 problem rather than our SD cards.
Click to expand...
Click to collapse
Odd that it doesn't effect everyone though... (Or they haven't noticed and assume the lower battery performance is due to ICS)

Just a quick update, Still got the Kingston SD card in. The media process started again this morning and has been "restarting" since, however according to the power information on the phone it hasn't been "awake" the whole time, and my battery is still at 98% after 4 hours (1 4min call, 8 sms).

fourfoot said:
Odd that it doesn't effect everyone though... (Or they haven't noticed and assume the lower battery performance is due to ICS)
Click to expand...
Click to collapse
There likely is more people affected by it. I can't figure out what condition causes it though.
fourfoot said:
Just a quick update, Still got the Kingston SD card in. The media process started again this morning and has been "restarting" since, however according to the power information on the phone it hasn't been "awake" the whole time, and my battery is still at 98% after 4 hours (1 4min call, 8 sms).
Click to expand...
Click to collapse
It was like that for me occasionally, when did you last reboot your phone, straight after charging?

Last reboot was when I changed to the Kingston SD card. However, sense did crash and restart last night, so guessing that's why this media process started again.

Mine crashed sometime last night, phone was playing tune in radio before I fell asleep. So I think we say its a bug and has nothing to do with SD card. Anyone wanna file bug report to HTC?
Sent from my HTC Sensation Z710e using XDA

Pikabat said:
Anyone wanna file bug report to HTC?
Sent from my HTC Sensation Z710e using XDA
Click to expand...
Click to collapse
I would if I knew how!

I got a lexar 32 gig class 10. I had to reformat my card yesterday because media service was running like crazy. Battery was drained in a few hours....so far good, but annoying. I'm running ADHD 6.6.0.
Sent from my HTC Sensation 4G using Tapatalk

gustav30 said:
I got a lexar 32 gig class 10. I had to reformat my card yesterday because media service was running like crazy. Battery was drained in a few hours....so far good, but annoying. I'm running ADHD 6.6.0.
Sent from my HTC Sensation 4G using Tapatalk
Click to expand...
Click to collapse
I tried formatting my card multiple times but it always seemed to come back on a blank card even.
Let us know how you get on.
If it continues please post how many files e.g. photos, music etc. you have.

k0zmic said:
I tried formatting my card multiple times but it always seemed to come back on a blank card even.
Let us know how you get on.
If it continues please post how many files e.g. photos, music etc. you have.
Click to expand...
Click to collapse
I have about 20 gig of music and 5 gig of pics/videos. The one I thing I noticed yesterday when I was copying everything from the SD card to my PC was that it kept erroring out, but I couldn't place where because I was trying to do a bulk copy and just be done with it. But because I was getting that error, I had to do it folder by folder. Everything went find till I hit the Android folder. I thought that was odd because it wasn't that big of a folder. So I went into the subfolders and started doing those one by one. PITA. Eventually I found that the 0 kb .nomedia file that was in the android/data folder would not copy over to my PC. So I removed that file after the format. I don't know if that was the file culprit, but knock on wood, so far I've gotten 18 hours after a full charge on ARHD 6.6.0.

I also noticed this today after my battery only lasted 5 hours with light use, and it's an anker extended battery! I have like 500 pictures and 1gb of songs. I haven't tried reformatting my sd card yet but I will try it in a bit.
Sent from my HTC Sensation using Tapatalk

Thanks for the info.
So maybe we can conclude you need a fair amount of music and photos for this to occur?
I don't see what difference the .nomedia file would make. I've seen it as a solution to the 'Media Scanner Drain' in other threads.
Did you say you put the .nomedia file in /Android/data? That's one thing I did because I was getting music files from games in my music list which was annoying.

No matter what SD card you have ...
Solution for me on Desire S ICS 4.0.4 Sense 3.6 is uncheck fast boot and then restart phone ...
16 hrs without restarting Media service ...

I have the same problem. My device is fresh restored to factory settings. I am trying to disable fastboot and for some hours it was ok but again the same problem

Tasos19s said:
I have the same problem. My device is fresh restored to factory settings. I am trying to disable fastboot and for some hours it was ok but again the same problem
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Click to collapse
ddi you try to wipe dalvik + cache from recovery?

rzr86 said:
ddi you try to wipe dalvik + cache from recovery?
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Click to collapse
I have original Htc rom i dont have custom recovery

Tasos19s said:
I have original Htc rom i dont have custom recovery
Click to expand...
Click to collapse
use a ruu.exe and see how it goes
http://forum.xda-developers.com/showthread.php?t=1672425

SD-Booster

I've been playing around w/ the SD booster in ROM toolbox and wanted to see what other people were using for settings. I have a 64gb class 10 Sandisk card and bumped up the cache to 1024kb. I mainly use the card for storing pictures, movies, and games.

punkcitykid said:
I've been playing around w/ the SD booster in ROM toolbox and wanted to see what other people were using for settings. I have a 64gb class 10 Sandisk card and bumped up the cache to 1024kb. I mainly use the card for storing pictures, movies, and games.
Click to expand...
Click to collapse
2048 is thought to be the sweet spot for class 10 cards.

I tried that same setting in my SGS with a 32 get card and noticed no difference. But about 2 weeks or so later, the phone suddenly began giving me messages saying my card was ready to remove. It would come back on and work fine, then do it again. I finally pulled it out and haven't been able to recover any of the 1000s of pictures I had taken.
Sent from my Nexus 7 using xda app-developers app

[email protected] said:
I tried that same setting in my SGS with a 32 get card and noticed no difference. But about 2 weeks or so later, the phone suddenly began giving me messages saying my card was ready to remove. It would come back on and work fine, then do it again. I finally pulled it out and haven't been able to recover any of the 1000s of pictures I had taken.
Sent from my Nexus 7 using xda app-developers app
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Click to collapse
I've been running 2048 since the first 32 GB class 10 cards came out. Running 64 GB now with no issues. Some of the cards were bad. Others have to do with rom and kernel.

Music app/ External SD acting funny

So....I got a 64gb SD card for my M8. I had my music on my internal SD but decided to free up space by making use of the 64gig card.
I deleted everything off of my internal (music-wise) and used a SD adapter and dragged and dropped about 5gb of music onto my card (in a folder I named Music).
My Sense Music app doesn't play the songs. Well...it plays but no sound. Sound is fine after frantically testing via Pandora, YouTube and Google Music.
After a few reboots and an overnight settle, still no dice. I'm fine as long as Google music plays my stuff that's on my device...but geez. What a weird problem.
Anyone else get that? Care to try?
I have a new sandisk ultra 64gb micro SD card. Class 10 and all that jazz.
Sent from my HTC One M8

andrewp3481 said:
So....I got a 64gb SD card for my M8. I had my music on my internal SD but decided to free up space by making use of the 64gig card.
I deleted everything off of my internal (music-wise) and used a SD adapter and dragged and dropped about 5gb of music onto my card (in a folder I named Music).
My Sense Music app doesn't play the songs. Well...it plays but no sound. Sound is fine after frantically testing via Pandora, YouTube and Google Music.
After a few reboots and an overnight settle, still no dice. I'm fine as long as Google music plays my stuff that's on my device...but geez. What a weird problem.
Anyone else get that? Care to try?
I have a new sandisk ultra 64gb micro SD card. Class 10 and all that jazz.
Sent from my HTC One M8
Click to expand...
Click to collapse
Kit Kat, which is the operating system on the M8 does not play well with Ext. Cards.
Check out this thread and try the solution in my last post.
http://forum.xda-developers.com/showthread.php?t=2722423

andrewp3481 said:
So....I got a 64gb SD card for my M8. I had my music on my internal SD but decided to free up space by making use of the 64gig card.
I deleted everything off of my internal (music-wise) and used a SD adapter and dragged and dropped about 5gb of music onto my card (in a folder I named Music).
My Sense Music app doesn't play the songs. Well...it plays but no sound. Sound is fine after frantically testing via Pandora, YouTube and Google Music.
After a few reboots and an overnight settle, still no dice. I'm fine as long as Google music plays my stuff that's on my device...but geez. What a weird problem.
Anyone else get that? Care to try?
I have a new sandisk ultra 64gb micro SD card. Class 10 and all that jazz.
Sent from my HTC One M8
Click to expand...
Click to collapse
I had the exact same problem you're describing. I fixed it by flashing the BoneStock ROM. Now all is working and I have this awesome ROM that is a pleasant improvement over stock Sense 6.

+1 on the bone stock rom, easy way to solve a lot of these issues. Otherwise, root, insecure kernel, then run sd fix app.
Sent from my Nexus 7 using XDA Premium 4 mobile app

Pauls57 said:
+1 on the bone stock rom, easy way to solve a lot of these issues. Otherwise, root, insecure kernel, then run sd fix app.
Sent from my Nexus 7 using XDA Premium 4 mobile app
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Click to collapse
+1 on th problem 4.4.2 Revolution HD....some songs play some don't...
INTERESTING ENOUGH - all music is played correctly on BT headphones...