Develop Bugs

Is my microsd card dead?

A couple of months ago I purchased a 16gb microsd card from ebay.
I bought it for only $15 but I think I now understand why it was so cheap...
The card itself was new and all, but unbranded. So I think it's safe to say that it was a counterfeit sd card I still have the card right now and I can store music, movies, files, etc in the card; HOWEVER, when I try to boot android from the card I keep getting the "unable to mount to sdcard" error.
Is my card broken/dead? And if so, is there any way to fix it besides buying a new one??
I'm planning on buying a new one if there is no absolute way in fixing the card. What would you guys recommend for a new sdcard??
Thanks!

urkrnboy90 said:
A couple of months ago I purchased a 16gb microsd card from ebay.
I bought it for only $15 but I think I now understand why it was so cheap...
The card itself was new and all, but unbranded. So I think it's safe to say that it was a counterfeit sd card I still have the card right now and I can store music, movies, files, etc in the card; HOWEVER, when I try to boot android from the card I keep getting the "unable to mount to sdcard" error.
Is my card broken/dead? And if so, is there any way to fix it besides buying a new one??
I'm planning on buying a new one if there is no absolute way in fixing the card. What would you guys recommend for a new sdcard??
Thanks!
Click to expand...
Click to collapse
I wouldn't even work with that SD card knowing it's counterfeit. Did you try to use another Android type? Did it work before?
Me, I wouldn't even trust the damn thing. Go get yourself a nice Sandisk microSD card (like you shoulda done in the first place )

rr5678 said:
I wouldn't even work with that SD card knowing it's counterfeit. Did you try to use another Android type? Did it work before?
Me, I wouldn't even trust the damn thing. Go get yourself a nice Sandisk microSD card (like you shoulda done in the first place )
Click to expand...
Click to collapse
Yes, I should've but being a poor college student every penny counts
And yes, android DID work before...this error started popping up recently. I also heard from other sites/forums that msdcards CAN go dead.
I'll pick one up tonight. Any suggestions?
I'm thinking of a Transcend 4gb class 6.

I dont know what to say about the SD card, other than doing a format with the Windows Command prompt and also formatting the boot sector, but I would recommend a SanDisk. I have never had a problem, and the transfer rates are amazing. I have an 8 Gig now, and im either getting a 16 Gb or waiting to find a 32 GB

thesyntax said:
I dont know what to say about the SD card, other than doing a format with the Windows Command prompt and also formatting the boot sector, but I would recommend a SanDisk. I have never had a problem, and the transfer rates are amazing. I have an 8 Gig now, and im either getting a 16 Gb or waiting to find a 32 GB
Click to expand...
Click to collapse
Just got home from Fry's.
I ended up purchasing a sony microSD 4gb class 4
I know Sony is a reputable brand so I trust them. But if any of you know any cons with Sony microSD let me know! I can already see a difference in speed with this new microSD.
Yipeeee!

[Q] SD card unexpectedly removed

Using the pre-installed stock Samsung Class 2 micro SDHC 8gb
Constantly getting this error from the DHD:
"SD card unexpectedly removed"
Symptoms:
1) Usually happens after installing / removing apps.
2) Tends to re-boot by itself after "hang" after about 10 seconds
Note the following items:
1) USB Debugging = ON
2) SIM card is fully inserted
3) SDHC card is fully inserted
4) Using stock ROM
5) PC Error Checking (bad sector) = No error
6) Have tried to format the SDHC. Result = same error
Any ideas on how to troubleshoot tis ?
Is the pre-installed SDHC card at fault ?
Thanks

Another thing you can try is to check with another card (New or Old)
If it still does it....then there shud be some problem with the card holder unit or something...get it replaced mate

Had the same issue. Think your SD card is broken. Mine was. Couldn't even get it to work on a pc. Tried a new SD card and the problem was gone. Just got out of the Vodafone store. They replaced the SD card under warranty.
Sent from my Desire HD using XDA App

I've got EXACTLY the same problem. It's bloody crazy!
I read that the phone may not be able to cope, as it's only a class 2 card - but I don't think that is correct, is it?
I've contacted HTC, and they just told me to take it back to the store and ask them to check it out. I'll probably do that in a week or so.

it just happened to me!! randomly. everything was fine and then suddenly it just failed on me. any clue why?

my4000 said:
it just happened to me!! randomly. everything was fine and then suddenly it just failed on me. any clue why?
Click to expand...
Click to collapse
Bundled Samsung SD cards with the latest OTA update are known to fail, search for more info in other threads here to see if you'd qualify for a warranty replacement.
Sent from my Desire HD using XDA App

sengork said:
Bundled Samsung SD cards with the latest OTA update are known to fail, search for more info in other threads here to see if you'd qualify for a warranty replacement.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
damn, same thing just happend to me, SD card error and thats it, its dead..nothing can read it. just lost pics i took when i went out this weekend :| absolute rubbish
time to search and find the threads you're on about

Been happening to me on the stock Samsung class 2 8gb... anyone encountered any problems changing to a class 4 card?
Sent from my Desire HD using XDA App

when I woke up this morning I couldn't access any of the programs on my sd card (SanDisk 16GB Class 2 SDHC), when I rebooted my desire HD the same thing happened. I tried manually mounting it, rebooting like ten times, inserting, ejecting the card etc, nothing would work.
Can't be the phone just smashed a 16GB card over night :/

YES....!! Gggrrrrr! it just happened to me last night. I rebooted my phone after installing some different Apps throughout the day (as is usual in my Android daily life). then after the phone rebooted about 30-45 seconds later i saw the "SD Card unexpectedly removed", thats strange i thought. Couldn't get past that after about another 4 reboots i removed the SD Card and tried it in a card reader on my PC. similar thing, I could ready the file structure on the WIN PC but then about 30 seconds later the drive disappeared and was no longer available. I then re formatted the card (started the process withing the first 30 seconds) and thought that would fix it. Now neither my WIN PC or Desire can read the card. also tried in Lynx Puppy environment but no go.
I think my 16GB Class 2 card is TOASTED. Was it because it used an Ext4 Partition on the card for the past 7 weeks? I heard some people in the site saying that Ext4 can damage your SD Card...?

Had the same problem - lost all my unbacked-up data. Quite disappointing. Bought a new micro SDHC and hasn't had a problem since.

So it's the SD-Card then?
It's happening to me most of the time and it's really anoying!

Yep time to buy a new one.if your luck and still able to access your old card then get it backed up quick.......before it goes tits up.
Sent with Desire.

Just visited the HTC customer center last week to check on this issue. Seems like its got to do with a bad batch of cards.
They replaced an identical Samsung microsd class 2 8gb card to let me use for a couple of days. Told me that If I was to still encounter the same problem, it could be problems with the card reader chasis, and I'd have to leave the phone with them for a couple of days.
I'm happy to report that I have not had 1 single "SD card removed unexpectedly" since I got the new replacement card.
I highly suggest for people facing the same problem to get their cards replaced by the seller or HTC.
Sent from my Desire HD using XDA App with 5 seconds of battery left

I just have the same problem like yours.
I tried many way and methods, It just can't working fine!!
so I buying another sdhc as sandisk 8G class 4
now I have no problem for two months so far.
I am reasonably to Suspected...
that the problem happends cuz this garbage samsung SDHC!!
Change it now! you'll feel like:[what a wonderful world~]

The "telus" version comes with an 8gig class 4 card but upgraded to a 16gig class 10. No problems either way.
Guess Canada nipped it in the bud

I was going fine with the stock 8Gb card and then I replaced it with a class 10 16Gb card and after about a week it started randomly ejecting. The card worked fine in other devices and can always be read in Windows but I guess it's only time - I have had another card go in the past and it's a real downer.
I'm not convinced it's the card. I've tried uninstalling any suspect apps but it hasn't made much difference.
Formatting the card and replacing all the files kind of works but I have still had one random 'eject' in the last 48hrs since I last formatted.
Actually the problem seems to have started when I re-flashed my current rom - Android_Revolution_HD-4G_4.0_beta4
Wish we could find out what is going on here.

Having the exact sample problem, but with a 16g card that I bought several month ago. I have another 16g card, will swap and see if the problem go.

I had this problem as well
So I formatted the SD Card and had the problem since...
however sometimes, it cant seem to recognise some pictures in the card, so i use SD rescanning app...

Heard someone saying this was caused by an OTA, well I had a warning around 2 days before the SD-Card Un-Mounted saying that the Card was in Read-Me format... anyway 2 days later my SD-Card became un-mounted and then became comepletely useless. I was unable to mount it or anything, going to get my dad to ring up HTC, as we rung my carrier and they said the problem 'had never been reported' which is bull**** as theres enough people here with the problem...

SD card?

So I checked my phone this morning, and it says the micro SD card was unmounted. So I reboot, and a little while after, it says it was unmounted again. I rebooted another time, but this time the microSD card wasn't even recognized. I put it into my computer through a Sandisk microSD to SD card adapter, and it's not showing up anymore. Did my phone fry it, or is there any other way to check if it's alive? It's a Sandisk 32gb class 10, and my phone was on Darthstalker, and Deviant kernel. I'm really afraid that $30 just went down the toilet :/

Unlikely that the phone fried it. People will argue the contrary, but SD cards aren't that reliable. Probably time to buy a new one.
I just looked, and it appears that Amazon is no longer selling their brand (AmazonBasics) micro SDs.... I bought a 16GB class 10 for $18 last year. Not sure if they are a rebrand, but worth looking into. They've been pretty reliable so far.

Its like the 50th post about this... Everyone with a true sandisk has been very happy and error free for the most part. Its the people that buy sandisks "on sale" or really cheap from untrusted sites... Sandisks are cloned big time... And they're out there. You probably got a clone...
Sent from my SGH-T999 using Tapatalk 2

steven-026 said:
So I checked my phone this morning, and it says the micro SD card was unmounted. So I reboot, and a little while after, it says it was unmounted again. I rebooted another time, but this time the microSD card wasn't even recognized. I put it into my computer through a Sandisk microSD to SD card adapter, and it's not showing up anymore. Did my phone fry it, or is there any other way to check if it's alive? It's a Sandisk 32gb class 10, and my phone was on Darthstalker, and Deviant kernel. I'm really afraid that $30 just went down the toilet :/
Click to expand...
Click to collapse
Yeah my sandisk 32gb die last month, lucky Amazon let me return it. I order samsung 32gb class 6 to how this goes.
Sent from my SGH-T999 using Tapatalk 2

steven-026 said:
So I checked my phone this morning, and it says the micro SD card was unmounted. So I reboot, and a little while after, it says it was unmounted again. I rebooted another time, but this time the microSD card wasn't even recognized. I put it into my computer through a Sandisk microSD to SD card adapter, and it's not showing up anymore. Did my phone fry it, or is there any other way to check if it's alive? It's a Sandisk 32gb class 10, and my phone was on Darthstalker, and Deviant kernel. I'm really afraid that $30 just went down the toilet :/
Click to expand...
Click to collapse
Personally I have had really good luck with the Sandisk brand. I still have an old 512 MB one that I bought back in 2006 and it still works. I would recommend pulling it out of the phone and making sure all of the contacts are clean and try again. Costs nothing and may solve your problem.
Just the other day, I pulled my 32 GB from my Galaxy S3 and put in my friends phone to swap a file. Although the screen was black on mine, I forgot to completely shut it off. As soon as I reinserted it, it made the sound, and the screen lit up, and mounted immediately. Any manufacturer can have a few duds, but in my experience these Sandisk are pretty reliable. YMMV.

GalaxyS3Guy said:
Its like the 50th post about this... Everyone with a true sandisk has been very happy and error free for the most part. Its the people that buy sandisks "on sale" or really cheap from untrusted sites... Sandisks are cloned big time... And they're out there. You probably got a clone...
Sent from my SGH-T999 using Tapatalk 2
Click to expand...
Click to collapse
I ordered it off of Amazon on September 13. The seller profile looks good too. Idk, is there a way to check if it's a clone?

[Q] Problem with SD card

Hello to you all
First, I own this nice tablet s and bought a class 4 Kingston so card and didn't have much trouble until 4 days ago. Nearly every day since, the SD card stop working, and it needs to be formated in order to get it working again. I have copied several music a day videos and played them without any loss or error in them, but then from nowhere, it stops working.
Any ideas of how it can be fixed? I'm desperate cause I need to format it like once or twice everyday.
Thanks for reading.

I had a similar problem with my 32 Gig Sandisk Class 10 card, mine would just not read the card and would need a reboot to fix then it would be good for a few days and happen again. I have since replaced the 32 Gig card with a 64 Gig Samsung class 10 card, so far that card has not had any problems but I have only had it a week. I think the Tab S seems to be picky with certain cards. The 32 Gig card I have in a ASUS MeMo Pad 7 and it is working with no issues.

valkurchento said:
Hello to you all
First, I own this nice tablet s and bought a class 4 Kingston so card and didn't have much trouble until 4 days ago. Nearly every day since, the SD card stop working, and it needs to be formated in order to get it working again. I have copied several music a day videos and played them without any loss or error in them, but then from nowhere, it stops working.
Any ideas of how it can be fixed? I'm desperate cause I need to format it like once or twice everyday.
Thanks for reading.
Click to expand...
Click to collapse
depends on who/where you bought the sd card from. I have gotten knock off sd cards from ebay before that work like crap causing the issues you have described, so always buy from an official retailer. it may be that the sd card has gotten corrupted in a way that is not repairable as well

When it comes to sd cards (uSD) I have found using this to be the best tool for prepping/formatting and otherwise "fixing" cards. Now keep in mind, if a card is physically corrupted you're SOL but this utility has worked like a champ for me over the years.

HTC 10 damaged micro SD card

HTC 10 damaged my micro SD card. Did happen to anyone else?
I listened music form my phone on my way to work in the morning and then, on way back home firstly music didn't play, so I found that card is not recognized by the system even after restart. I have checked it later on two computers with 2 different adapters and no appliance can recognize the card. Branded 64 GB Lexar fast card. HTC wasn't restarted or so, wasn't even hot I kept in whole day in the pocket. I'm not sure what to do, I mean don't want to lose another memory card which I probably buy.
And maybe, by any chance, someone have any idea how to check memory card whether is completely dead?

badzi0r said:
HTC 10 damaged my micro SD card. Did happen to anyone else?
I listened music form my phone on my way to work in the morning and then, on way back home firstly music didn't play, so I found that card is not recognized by the system even after restart. I have checked it later on two computers with 2 different adapters and no appliance can recognize the card. Branded 64 GB Lexar fast card. HTC wasn't restarted or so, wasn't even hot I kept in whole day in the pocket. I'm not sure what to do, I mean don't want to lose another memory card which I probably buy.
And maybe, by any chance, someone have any idea how to check memory card whether is completely dead?
Click to expand...
Click to collapse
Did it ever occur to you the card could have had a hardware failure?
Sent from my HTC6545LVW using Tapatalk

It's more likely a short life span micro sd card, and this kind of suck always happen once a while.
Don't blame your phone unless other one or two micro sd cards also die in the first two weeks.

Hi, The reason I'm asking is to avoid the risk in the future. If it happens to anybody else I will rather buy some cheaper card.
That memory card was bought for GoPro so I use it for many other apliances without any problem and suddenly it broke with HTC 10. At least I noted it here for statistics.
Sent from my HTC 10 using Tapatalk

badzi0r said:
Hi, The reason I'm asking is to avoid the risk in the future. If it happens to anybody else I will rather buy some cheaper card.
That memory card was bought for GoPro so I use it for many other apliances without any problem and suddenly it broke with HTC 10. At least I noted it here for statistics.
Sent from my HTC 10 using Tapatalk
Click to expand...
Click to collapse
...and if it had broken in one of your "many other appliances" it wouldn't have been broken by your HTC 10.
Cards fail. Cheap cards fail often.
Lesson, buy more than one card and don't recycle them from device to deice.
Another lesson, don't ever buy cheap cards.

nobnut said:
...and if it had broken in one of your "many other appliances" it wouldn't have been broken by your HTC 10.
Cards fail. Cheap cards fail often.
Lesson, buy more than one card and don't recycle them from device to deice.
Another lesson, don't ever buy cheap cards.
Click to expand...
Click to collapse
lexar isn't usually horrible, but yeah sd cards fail. On the notes of sd cards dying my t3i must have killed my sandisk ultra 2, it couldn't have been the card that died.

dottat said:
Did it ever occur to you the card could have had a hardware failure?
Sent from my HTC6545LVW using Tapatalk
Click to expand...
Click to collapse
The HTC 10 does appear to be finicky with microSD cards. My 128GB Sandisk that worked totally fine on a Galaxy S5 kept giving me problems on the HTC 10. I wonder if the phone is stressing the cards too much somehow (for instance if it is scanning the card too often for media files and you happen to have tons of media content on the card like in my case).

Thank guys for the reply,
I never broke before any memory card and that one was not cheap. Happily I can buy now double capacity and double speed for half of the price which I spend for the last one. I'm planning to buy Lexar 128GB. That card did work perfectly but only few days.

I'm having issues with my card as well. I purchased the SanDisk Ultra 200GB Micro SD from amazon. I put it straight into the phone and ran diagnostics on it to confirm it was a true SanDisk card and its read/write speeds which were in line with manufacturer's specs (88 read/ 14 write). Within the day it was having issues pulling images off the card. All the images saved directly to the card had a grey area or "box" over some portion of the photo that would correct after a few seconds leaving the full picture to view. The images could be sent with no problem but eventually they seemed to become corrupted. I figured it was the slow write speed causing the issue so I replaced it with a new Samsung ProPlus 128GB card (95 read/ 90 write) and the issue still persists. Not sure if anyone else is seeing anything similar.

if your looking for a new one, this one is great. very fast speeds 90mb write 95mb read. bit on the spendy side so hopefuly it was just the card failing and not the HTC 10 eating them
I haven't had any issues with 1000s of files on mine so far, crossing fingers

Same here, Kingston 128 GB micro SD worked fine on my s7 edge. Inserted the same card in my HTC 10 and it was readable for the first hour, after that the card was not recognised by the device. The card wasn't even recognised by my Mac and PC. I'm glad I had my photos backed up on google photos.

My 64gb kingston kicked the bucket in my HTC 10. Last weekend I woke my phone up and it said sd card unexpectedly removed. Card was not readable in any other device.
Got a Sandisk as a replacement as never had an issue with their cards in the past. The kingston only lasted 4 weeks, but I'm putting it down to just a faulty card.
If the sandisk dies too, then I'll be a bit concerned it could be the phone...

Im Using Lexar Pro SDCARD 128gb and havent had issues using it. The card was also formatted as adaptive.
Sent from my iPhone using Tapatalk

alexp999 said:
My 64gb kingston kicked the bucket in my HTC 10. Last weekend I woke my phone up and it said sd card unexpectedly removed. Card was not readable in any other device.
Got a Sandisk as a replacement as never had an issue with their cards in the past. The kingston only lasted 4 weeks, but I'm putting it down to just a faulty card.
If the sandisk dies too, then I'll be a bit concerned it could be the phone...
Click to expand...
Click to collapse
So, there is two of us. There is one only connection - 64gb.
Where is Sherlock?
by [email protected]

You're made me worry. I use SanDisk 200 Gb, it's kinda expensive one.

Worry for what?
I don't have any issues with my HTC10, but I broke a 64gb Sandsik in my Sony X10i, phone just got hot. Shut down, Card didn't work anymore. And another one SanDisk 128gb was in my Sony Z2 when I replaced the back plate somehow the MicroSD got broken.
The 64gb Card had a Lifetime Warranty and the 128gb a 10 year. Not sure how long my 200gb card is now. Think they reduced it to 3years or 5.
But yeah, went to their Homepage, registered the cards. Requested replacement, they sent someone here to pick them up, 5-9days later I got the new Cards via Mail
So yeah, always back Up your important stuff somewhere else and who cares if they fail. It's annoying Yes, but **** happens.

SD cards can fail in ANY device. I wouldn't go as far as saying it failed because of the device. Quality of the cards is what really dictates how soon failing can occur. A knockoff SanDisk failed in a few months while the real one has lasted years for me. I highly recommend SanDisk and Samsung SD cards because I have had no issues with their original products.
EBay and some Amazon sellers have tendencies to sell fake cards so beware.
Sent from my HTC6545LVW using Tapatalk

I woke up this morning and my HTC 10 says that the micro card couldn't be recognized. Crap. Did a search and found this thread. The card is a Lexar 64gb card. I went to Walmart this afternoon and got a Samsung 128gb card. Hoping this card will last my long tern stress test. Ha!

afuller42 said:
if your looking for a new one, this one is great. very fast speeds 90mb write 95mb read. bit on the spendy side so hopefuly it was just the card failing and not the HTC 10 eating them
I haven't had any issues with 1000s of files on mine so far, crossing fingers
Click to expand...
Click to collapse
+1
been using this without any problem 128gb and prior to this i tried samsung evo + 128 and that worked fine....
but as the OP stated it is true that many users using diferent sd cards has been facing issues with htc 10.....
some has issues on some firmware, some on custom kernels, some on different formats so its wise to say that there is something beyond a faulty sd card itself.
in all the custom rom threads you could see sd card issues highlighted at one point or other by mutliple users including devs

I have the same issue, and now i remember this is the second one in my htc 10, first one a pny 128gb worked well for more than one year in my previos s5 and after a month in my htc it failed, i blame the sd card that day and decide to buy an 128gb lexar and today after 5 months it failed, or i have a very bad luck now or my htc is damaging my sd cards.