Develop Bugs

[Q] 32GB SD Card Slow

Hi guys,
Bought a SD card from the bay and it arrived all good and well but after a few days started crashing my phone as i didn't know what it was i sent my phone to HTC got it re-flashed by them and sent back put the SC card back in then i got the message of copy written card , Which was odd , got past that now so now its accepting files but very slowly Currently transferring 4.04GB @ 81KB/s According to windows but its going to take an estimated 15 hrs , Its been transferring for 1 Hr now and no where near finished , Any ideas Its a FAT32 card , I try format it to NTSC but wont format there just hangs then the phone reformats it to Fat32
Any ideas to speed it up ?

It can only be FAT32. Run a hard drive benchmark like CrystalDisk Mark and see what speeds you get. Make sure you at least run the sequential test. Sounds like you really got a dodgey card though.

Silver_172 said:
Hi guys,
Bought a SD card from the bay and it arrived all good and well but after a few days started crashing my phone as i didn't know what it was i sent my phone to HTC got it re-flashed by them and sent back put the SC card back in then i got the message of copy written card , Which was odd , got past that now so now its accepting files but very slowly Currently transferring 4.04GB @ 81KB/s According to windows but its going to take an estimated 15 hrs , Its been transferring for 1 Hr now and no where near finished , Any ideas Its a FAT32 card , I try format it to NTSC but wont format there just hangs then the phone reformats it to Fat32
Any ideas to speed it up ?
Click to expand...
Click to collapse
You should really run h2testw. Flash memory cards from eBay are often fakes, so make sure you test it out so you don't miss out on a refund.
EDIT: "...the bay..." -- I'm guessing you meant eBay? Either way, you ought to test it.

martino2k6 said:
You should really run h2testw. Flash memory cards from eBay are often fakes, so make sure you test it out so you don't miss out on a refund.
EDIT: "...the bay..." -- I'm guessing you meant eBay? Either way, you ought to test it.
Click to expand...
Click to collapse
yeah you got it right mate , Yeah ill run some benches i think it is a fake as i got an email sent to me via ebay saying i had been involved in fraudulent activity's , so i passed it off as the card was working then ,
But yeah just passed 4GB over to it , From last night at about 10 PM To Now 8.50AM its still got 7 Hrs remaining ,

How do you transfer? Cardreader? usb cable?
I read that some older cardreaders having problems with SDhc cards bigger than 16 gb. It's for those readers that connect via usb.
Greetz sweet
Sent from my HTC Desire using XDA App

Hi yeah I've been transferring through my phone via USB although I just baought a card reader off eBay, going to try that
Update on bench, I was useing Otto bench what I used for my ssd and it just wouldn't work, seems the ssd is just far too slow
Sent from my HTC Desire using Tapatalk

Silver_172 said:
yeah you got it right mate , Yeah ill run some benches i think it is a fake as i got an email sent to me via ebay saying i had been involved in fraudulent activity's , so i passed it off as the card was working then ,
But yeah just passed 4GB over to it , From last night at about 10 PM To Now 8.50AM its still got 7 Hrs remaining ,
Click to expand...
Click to collapse
Yeah, try running the test. It might takes ages, but it is the only proper way to find out if you've been sold a fake card. Most of the times you won't have to run the whole test as it might start picking up fake memory locations after the 2GB or 4GB mark, so anything after that will be fake too.

Also noticed when i plug it into the pc , through the phone i get the scan and fix , from windows so just done that and tried to recover any bad sectors might help then ill go through and bench it again but like i said earlier it just didn't start and then the program wouldn't respond

Silver_172 said:
Also noticed when i plug it into the pc , through the phone i get the scan and fix , from windows so just done that and tried to recover any bad sectors might help then ill go through and bench it again but like i said earlier it just didn't start and then the program wouldn't respond
Click to expand...
Click to collapse
Recovering any lost sectors wouldn't help if the card is fake.
A fake card is one where they make the card in such a way so that it appears as some X size, however in fact it is physically it will be only 2/4/Y GB big and the rest is just faked through some kind of trickery. No method will give you those lost GB, as they physically are not even there (can't make something out of nothing, right).
Anyway, good luck with the test.

What happened to popping to the shops? /sigh at the digital age. I don't get why people buy such garbage on eBay because quite a few times this week I have seen people buy stuff from eBay and it's been fake.

Quick update thanks for all the advice guys , but i think i have resolved my problem the phone was slowing my transfers down ,
so i went to ebay and got a SD to USB for 11P and its transferring much faster now brought the time down from 12 Hrs to transfer 4 GB to 1 Hr to transfer 5 GB Which is Brilliant !

[Q]HTC Desire HD SD Card Un-mounted Itself?[Q]

Hi XDA, seriously problem here that I really, really need to fix.
My father left his phone at home for the FIRST time ever today, his HTC Desire HD was one of the first in the UK, he go it the first day it came out. Today he forgot to take his phone to work, so I put it on charge for him and left for school. He came home halfway through the day to find a warning in the notification bar alerting him that the SD Card had been un-mounted. On seeing this he immidiatley blamed me, as any father would do to a son that enjoys messing around with electronics, however after taking a closer look I noticed that the phone will accept any card except the one that was in it when it unmounted itself at some point within the day.
The card that broke, is the origional Samsung 8GB that came with it (on Orange anyway ~ unbranded as first in UK FTW) when the Samsung Card is inserted all the stats about the card show as Unavailable, and the phone doesn't even recognise a card as being inserted, the same happens when the SD Card is plugged into my computer running Ubuntu & Windows. The card is not recognised at all, infact Ubuntu thought I inserted an empty SD Reader, and thats from Ubuntu! My dad has so much saved to that SD Card, like literally 5 months of holidays and things, I know he should have made back-up's, but is there anyway we could get this back. Thanks.

Hey i had a simmaler problem but i fixed it with my 16gb micro sdcard by takeing it out of my phone and pluging it into my lapyop and move all the files off the sdcard and onto the desktop and then move then back and then put it back into the phone and turn it on and see if it worked
If it didnt please responed and tell me the exact message it says
Sent from my T-Mobile G2 using XDA App

andslide said:
Hey i had a simmaler problem but i fixed it with my 16gb micro sdcard by takeing it out of my phone and pluging it into my lapyop and move all the files off the sdcard and onto the desktop and then move then back and then put it back into the phone and turn it on and see if it worked
If it didnt please responed and tell me the exact message it says
Sent from my T-Mobile G2 using XDA App
Click to expand...
Click to collapse
Hey Man,
I would do this, but my computer doesn't detect the MicroSD even if its in a SD Reader and plugged into my PC?

I had a similar problem... after i got my DHD, I bought a 16gb card for storage. I used this for about 4 months then I started to get the dismount messages every now and then, particularly when the card was being used a lot (playing music from it especially). Then a few days later it would do it after every boot.
My PC can see the files on the card, but trying to copy them off throws an error. I can't format the card either. I have since bought a new one and that is working fine, so it may have just been a faulty card.

It is HTC's fault, bug in the rom causes that. Your father should get an OTA update any time soon that will prevent it from happening again. You can format the SD using a PC and a card reader, it might just revive the card.
Sent from my Desire HD using Tapatalk

If you want to retreive data on the SD do not format or delete the partition.
Try to use a "data rcovery" tool first.
But if it's not recognise at all (like a piece of plastic and not as a non formated sd) all data maybe lost.
Usually OS corrupt the SD, it doesn't destroy it. If it's dead it not your fault or the OS fault. It's just no luck (try to explain this to dad ).

And beside I think its an San disc not an samsung, like I have, and try read it with partition manager. If not you can get a new one. And never buy Kingston cards, I had 5 of them and all died in few weeks.
Sent from my Desire HD using XDA Premium App

Kingston makes the best and fastest cards, you have just abused them or something like that..
Sent from my Desire HD using Tapatalk

I do not think so, all Kingston was a waste of money for me, but my sandisc m2 micro sd are working fine for 6 years with no problem at all.
Sent from my Desire HD using XDA Premium App

Well, both Kingston and SanDisk have worked well for me, and the price is usually almost the same. The difference is that Kingston gives absolutely awesome warranty, and the cards are fast has h*ll. My Class4 Kingston reads 21 megs per second, and writes 12 megs per second.

strauts said:
I do not think so, all Kingston was a waste of money for me
Click to expand...
Click to collapse
IMO the Kingston of England is not the same one in Finland, call me stupid but I lived in both countries and bought many Kingston memory sticks/SD cards from both

androf said:
IMO the Kingston of England is not the same one in Finland, call me stupid but I lived in both countries and bought many Kingston memory sticks/SD cards from both
Click to expand...
Click to collapse
This could be the reason, may be in Latvia are selling only the cheapest Kingston cards.
Sent from my Desire HD using XDA Premium App

strauts said:
This could be the reason, may be in Latvia are selling only the cheapest Kingston cards.
Sent from my Desire HD using XDA Premium App
Click to expand...
Click to collapse
Probably
Loads of bootleg Kingston cards in England and I never noticed any kind of warranty on them while it was the most tempting thing on the ones I used to buy from Finland

jkoljo said:
It is HTC's fault, bug in the rom causes that. Your father should get an OTA update any time soon that will prevent it from happening again. You can format the SD using a PC and a card reader, it might just revive the card.
Sent from my Desire HD using Tapatalk
Click to expand...
Click to collapse
Thanks for the information, i've sent an E-Mail to HTC complaining about it. Hopefully they will see the light, and send a new SD-Card as it was shipped with the phone from HTC.

SD Card Removed Unexpectedly when Connected to PC?

I've looked around a bit, and correct me if I'm wrong, but it doesn't seem like anyone else has my problem.
Long story short, I've got a 8GB Class 4 Sandisk SD card, and it worked well for the first few weeks. However, as of recently, anytime I connect to my PC in any way and try to transfer files over using USB or Bluetooth, it fails due to the unexpected removal of my SD Card. This is without me physically removing it of course.
I've tried formatting using default settings, and I don't know what else to try... can anyone shed some light here?

Have you tried another SD?
If you have and problem is still there, I would try a factory reset.
If after all this effort your problem is still not resolved, then i would say a call to HTC is your best solution as it could be hardware related.
Oh couple more things:
Try a different USB cable.
Try a different port or pc.

Okay, I tried it with the stock microSD 2gb, and I didn't get this problem ... basically it just means I've got a bad 8gb?

shiverxiii said:
Okay, I tried it with the stock microSD 2gb, and I didn't get this problem ... basically it just means I've got a bad 8gb?
Click to expand...
Click to collapse
Yup, it happens sometimes.
Sent from my HTC_A510c using Tapatalk

Be aware there has been countless reports of fake sandisk SD cards being sold everywhere including eBay and Amazon's market place.
So before purchasing a new card Google how to spot a fake sandisk and it should give you an idea of what to look for or not.

I had also faced this situation ...i changed with class 2...nw it working like charm...
Sent from my HTC Wildfire S using XDA App

I purchased mine from London Drugs, not sure if you know it, but it is a trustworthy place so I doubt my card is fake.
One more thing for clarification, do you think that setting the phone so that it auto installs to SD could have some effect? I set mine up like that due to the lack of internal storage. Thanks for the responses!

i didnt have this issues before hope u can fix it

shiverxiii said:
I purchased mine from London Drugs, not sure if you know it, but it is a trustworthy place so I doubt my card is fake.
One more thing for clarification, do you think that setting the phone so that it auto installs to SD could have some effect? I set mine up like that due to the lack of internal storage. Thanks for the responses!
Click to expand...
Click to collapse
Auto install to SD should have no effect mate.
Also the fake card situation - well they have been sold by legitimate sellers believing them to be genuine, not trying to deceive customers.
Apparently the market has been flooded with them.
I read about it a couple of months back.
Not saying yours is fake, was just saying your average user wouldn't notice at all.

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.

Sd Card pop up message

Constantly getting sd card pop up saying click here to transfer files,
despite swiping it away,closing it down, it keeps reappearing every 20 minutes or so!
It seems a problem on some Samsung phones inc Note 10 Plus 5g, but despite trying
most things people have suggested on the net, i cant stop this buggy pop up !
Have even factory reset phone again, and sd card, both in phone, and on laptop
Any one got any solution for it, or have i got a faulty phone?
Card i'm using is a brand new, Integral 256GB Micro SD Card 4K Video Premium High Speed Memory Card SDXC Up to 100MB s Read Speed and 50MB s Write speed V30 UHS-I U3 Class 10
Thanks in advance for any help
Jools

jools2001 said:
Constantly getting sd card pop up saying click here to transfer files,
despite swiping it away,closing it down, it keeps reappearing every 20 minutes or so!
Card i'm using is a brand new, Integral 256GB Micro SD Card 4K Video Premium High Speed Memory Card SDXC Up to 100MB s Read Speed and 50MB s Write speed V30 UHS-I U3 Class 10
Click to expand...
Click to collapse
Never heard of the brand of SD Card you're using.
My guess, since it's brand new, it's defective at best.
I'd return it for a refund & get a better known brand such as SanDisk or Samsung.

My guess is that you have a faulty SD card. I would return it if I were you or get a new one. Cheap SD cards malfunction often. I've been a victim myself. That's why I only buy reputable names from sources that will accept returns if damaged. I've lost precious memories due to this issue.
Sent from my Pixel 3 XL

Thanks for replies, i actually reset phone and card again this morning
thought i fixed the fault, but after 2 hours it came back!
So back to Amazon ,and back to Samsung sd card! lol
Just put the card back into my old Note 8, just to see if it happens on that phone,
as Note 10 is a refurbished like new, and need to see if it the phone or card thats actually faulty,
otherwise retailer is gunna blame the card, and not their phone,and Amazon are going to blame the phone more than likely ! lol

jools2001 said:
Thanks for replies, i actually reset phone and card again this morning
thought i fixed the fault, but after 2 hours it came back!
So back to Amazon ,and back to Samsung sd card! lol
Just put the card back into my old Note 8, just to see if it happens on that phone,
as Note 10 is a refurbished like new, and need to see if it the phone or card thats actually faulty,
otherwise retailer is gunna blame the card, and not their phone,and Amazon are going to blame the phone more than likely ! lol
Click to expand...
Click to collapse
Amazon has a no questions asked return policy. Send it back before your return window closes.
Sent from my Pixel 3 XL

jools2001 said:
Thanks for replies, i actually reset phone and card again this morning
thought i fixed the fault, but after 2 hours it came back!
So back to Amazon ,and back to Samsung sd card! lol
Just put the card back into my old Note 8, just to see if it happens on that phone,
as Note 10 is a refurbished like new, and need to see if it the phone or card thats actually faulty,
otherwise retailer is gunna blame the card, and not their phone,and Amazon are going to blame the phone more than likely ! lol
Click to expand...
Click to collapse
A hard reset (OS reload) of the phone effectively addresses viruses, trojans and old OS loads but little else.
Many times the same settings issue remains to be toggled or triggered again.
Find and address the core issue directly.
•Clean card contacts with a tissue and 97% isopropyl alcohol.
•Do a low level format on card if this doesn't resolve the issue, replace the card.
This card works perfectly out of the box:
https://forum.xda-developers.com/galaxy-note-10+/accessories/memory-upgrade-time-t4155549

KOLIOSIS said:
Never heard of the brand of SD Card you're using.
My guess, since it's brand new, it's defective at best.
I'd return it for a refund & get a better known brand such as SanDisk or Samsung.
Click to expand...
Click to collapse
Integral are a good quality lower cost SD card supplier in UK
Not sure how to help the OP out but I have the same card and no issues.

Well i formated old Note 8 memory card
128GB Micro SD SDXC Samsung EVO Plus UHS-I U3 Card
Been in phone now for nearly a day, and no errors or notifications have popped up on my Note 10 Plus!
Obviously the phone didnt like something with this certain Integral card, as it worked back in my old Note 8 without any problem?
One of lifes mysteries, but now gone back to Amazon for my £28 refund, and hopefully no more hassle.
Thanks to everyone who replied
Jools

Low Level Format
jools2001 said:
Thanks for replies, i actually reset phone and card again this morning
thought i fixed the fault, but after 2 hours it came back!
So back to Amazon ,and back to Samsung sd card! lol
Just put the card back into my old Note 8, just to see if it happens on that phone,
as Note 10 is a refurbished like new, and need to see if it the phone or card thats actually faulty,
otherwise retailer is gunna blame the card, and not their phone,and Amazon are going to blame the phone more than likely ! lol
Click to expand...
Click to collapse
jools2001 said:
Well i formated old Note 8 memory card
128GB Micro SD SDXC Samsung EVO Plus UHS-I U3 Card
Been in phone now for nearly a day, and no errors or notifications have popped up on my Note 10 Plus!
Obviously the phone didnt like something with this card, as it worked back in my old Note 8 without any problem?
One of lifes mysteries, but now gone back to Amazon for my £28 refund, and hopefully no more hassle.
Thanks to everyone who replied
Jools
Click to expand...
Click to collapse
Do a low level format on the computer using a apk like Lexar's designed to do a low level format. Simply wiping the card isn't enough sometimes and without a low level format it will remain corrupted.
Sharing a card between two devices can cause card corruption, try to avoid doing so. Usually you can swap between two Androids but be very wary of swapping with other devices like cams etc. Do a full format in the new device to ensure compatibility and stability. Not doing this can result in corrupted card even if it may seem to be functional at first.
You can lose all the data on the card like this and even if you can recover it, it will be in bits and pieces... more or less a useless heap of disjointed data.

blackhawk said:
Do a low level format on the computer using a apk like Lexar's designed to do a low level format. Simply wiping the card isn't enough sometimes and without a low level format it will remain corrupted.
Sharing a card between two devices can cause card corruption, try to avoid doing so. Usually you can swap between two Androids but be very wary of swapping with other devices like cams etc. Do a full format in the new device to ensure compatibility and stability. Not doing this can result in corrupted card even if it may seem to be functional at first.
You can lose all the data on the card like this and even if you can recover it, it will be in bits and pieces... more or less a useless heap of disjointed data.
Click to expand...
Click to collapse
I did all the low level format, on both cards, but it still didnt stop the card playing up in my Note 10, and actually corrupting 2 pics,
so i wasnt going to risk that, just needed to make sure it wasnt the phone at fault, as it was only a few days old, but guess it was the card!
lets hope it goes ok from now on! lol

jools2001 said:
I did all the low level format, on both cards, but it still didnt stop the card playing up in my Note 10, and actually corrupting 2 pics,
so i wasnt going to risk that, just needed to make sure it wasnt the phone at fault, as it was only a few days old, but guess it was the card!
lets hope it goes ok from now on! lol
Click to expand...
Click to collapse
Sorry to hear that.
I've never blown out a ram stick or SD card.
Remember they can be destroyed by one ESD event; their data ports have limited ESD protection. It can happen instantly or fail weeks even years latter, multiple smaller ESD insults can cause accumulative damage over time as well.
•Never touch the contacts.
•Keep static charges low by keeping RH at 50% or higher in the room.
Lol no wool sweaters.
•Touch yourself to an earth ground to discharge any static buildup or use an ESD strap/mat to keep everything near the same potential.
A little extra care can avoid a lot of cursing latter on...

blackhawk said:
Sorry to hear that.
I've never blown out a ram stick or SD card.
Remember they can be destroyed by one ESD event; their data ports have limited ESD protection. It can happen instantly or fail weeks even years latter, multiple smaller ESD insults can cause accumulative damage over time as well.
•Never touch the contacts.
•Keep static charges low by keeping RH at 50% or higher in the room.
Lol no wool sweaters.
•Touch yourself to an earth ground to discharge any static buildup or use an ESD strap/mat to keep everything near the same potential.
A little extra care can avoid a lot of cursing latter on...
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Only ever had one sd ever fail a Toshiba one!
And a pirate one sent from Amazon Warehouse as like new!!!!
Mend pc's in spare time,. so know all about static, perhaps this card was stored next to wooly jumpers in Amazon warehouse! lol
Trust me to get a faulty one!

jools2001 said:
I did all the low level format, on both cards, but it still didnt stop the card playing up in my Note 10, and actually corrupting 2 pics,
so i wasnt going to risk that, just needed to make sure it wasnt the phone at fault, as it was only a few days old, but guess it was the card!
lets hope it goes ok from now on! lol
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jools2001 said:
Only ever had one sd ever fail a Toshiba one!
And a pirate one sent from Amazon Warehouse as like new!!!!
Mend pc's in spare time,. so know all about static, perhaps this card was stored next to wooly jumpers in Amazon warehouse! lol
Trust me to get a faulty one!
Click to expand...
Click to collapse
If you play with a good ESD meter you'll be amazed how much of charge you can build up on almost any nonconductor. Once the RH drops below 20% ESD becomes very problematic and widespread.
High G impacts ie dropping a chip onto concrete from 3 feet can also kill a chip.
ESD is what kills most of these cards and ram sticks though. If you can see, feel or hear static it's already enough to damage semiconductors. Punch a microscopic hole through an insulation layer only a couple microns thick (doesn't take much voltage to do that) and it's a done deal.
Their service life is tens of thousands of cycles so it's doubtful one will wear out prematurely if used with care. High cycle usage though can wear them out.
My oldest flash cards are 16 yo and still functional.

I've had multiple SanDisk cards fail and a PNY. I've had really good reliability with the Samsung EVO Plus and Select cards.
You can pick up a 512GB Samsung EVO Select from Amazon for under $80.
Sent from my SM-N976V using Tapatalk

Same here, sandisk cards I have used failed miserably, also kingston ones, I ended using ADATA cards, not a single one has failed, ad for speed, I really find them adequate, at least for normal std uses

gernerttl said:
I've had multiple SanDisk cards fail and a PNY. I've had really good reliability with the Samsung EVO Plus and Select cards.
You can pick up a 512GB Samsung EVO Select from Amazon for under $80.
Sent from my SM-N976V using Tapatalk
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When you say "fail" what do you mean?
A low level format couldn't recover it?
Showed multiple bad sectors?
These cards can be corrupted fairly easily but can be completely salvaged with a low level format.
Without it they will be inaccessible and seem to be "dead". Even new cards can do this.

blackhawk said:
When you say "fail" what do you mean?
A low level format couldn't recover it?
Showed multiple bad sectors?
These cards can be corrupted fairly easily but can be completely salvaged with a low level format.
Without it they will be inaccessible and seem to be "dead". Even new cards can do this.
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I mean as completely dead and unusable. It would not recognize the partition. Sandisk had released a bad batch of 128GBs a while back. They were unreadable on multiple devices.

gernerttl said:
I've had multiple SanDisk cards fail and a PNY. I've had really good reliability with the Samsung EVO Plus and Select cards.
You can pick up a 512GB Samsung EVO Select from Amazon for under $80.
Sent from my SM-N976V using Tapatalk
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Click to collapse
gernerttl said:
I mean as completely dead and unusable. It would not recognize the partition. Sandisk had released a bad batch of 128GBs a while back. They were unreadable on multiple devices.
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Click to collapse
May have been dead but a corrupted card will behave like this. A 3rd party PC low level formatting app can access these corrupted cards and repair their file structure.
Normal formatting tools like Windows one will do nothing if it even can register their presence at all.

blackhawk said:
May have been dead but a corrupted card will behave like this. A 3rd party PC low level formatting app can access these corrupted cards and repair their file structure.
Normal formatting tools like Windows one will do nothing if it even can register their presence at all.
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Click to collapse
When I mean dead, I mean DEAD. I was unable to do ANYTHING. The partition was not even readable. I used different tools like Recuva and EASUS and got nothing. I've been using SD cards for YEARS. I know how to fix them.

gernerttl said:
When I mean dead, I mean DEAD. I was unable to do ANYTHING. The partition was not even readable. I used different tools like Recuva and EASUS and got nothing. I've been using SD cards for YEARS. I know how to fix them.
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If the computer software can't read what's there you won't see any partition. Androids wuv to do that.
That doesn't mean it's dead... as long as you have a low level formatting tool that it shows up when connected it probably is salvageable. Make sure any needed Window drivers are loaded...
If you've had multiple failures it's time to reexamine what you're doing.
I have close to 2 dozen flash cards with some dating back 16 years and no unrecoverable failures. Data was lost but not the bloody card!