Database Develop

*Good* Class 6 MicroSD cards

Hey guys,
I've been having a great deal of trouble with my cheap Transcend 8gb class 6 card . . . spontaneous unmounts, lots of finicky behavior all around. Having the apps on the SD means the phone crashes, and the app permissions get borked to hell.
I've heard these are not very good cards (you get what you pay for in this case) and are known to have problems with the G1 . . . or the G1 is known to have problems with them. Either way, perhaps some of you can help me:
-Are the Transcends indeed "problem cards?"
-Has anyone had one, gotten fed up with the crashing, replaced it, and is in good working order?
-If that's the case, what are some known good cards I can get to replace it?
Thanks!

they are not problematic, they are just not compatible enough! Every device has issues with every other sd card no matter what. I been buying sd cards and I have had problems with these since the day they were born.
In my opinion, transcend are one of the more compatible sd cards. Funny thing is I use a sandisk on my phone and I always had issues with sandisks before on other devices.

First things first, Transcend are by no means a 'cheap brand'. They actually make some of the more expensive memory cards you can buy, and they are very good. My memory card is a Transcend, an 8GB Class 6 like yours.
The difference is that my one has never failed me. It's actually very fast. Furthermore, Transcend are known for making good memory cards. Maybe you just got unlucky with your one.

I ordered the A-Data class 6 to replace my class 4 sandisk based off raving reviews. I havent read much for negative reviews on the A-Data lineup, even though they are a smaller company

I had a transcend 8gb class 6 card that failed completely (can't even access from a PC). When it failed, and due to my apps to sc and other changes, my phone wouldn't boot without a card. I had to install the 128 mb card once I got home and re-update from scratch. When the transcend card worked, it was fast. I've used other cards of theirs in my cameras for a while now, and they've been very good. But this failure caused a bit of a headache for me. I'm at the point where if I see any problems with my sd card, I'll simply replace it to avoid worse problems. Wouldn't have helped in this case as I saw no signs before hand. If it means much, I'd try another transcend card again.

Sorry, didn't mean to bash Transcend undeservedly. So maybe it's just an issue particular to their cards and the G1?

Thread moved to Dream Q&A, please post in the correct place; not dev related.

i went through 2 4gb class 6 adata cards that wouldn't work at all after i partitioned them. phone would bootloop regardless of rom. it worked great if i left all fat32....very strange.

orange that should be a good card. if you have any way to put it into your computer and try to format it, via a usb conector ect. then give that a go. other wise it could be the rom your on, what type of rom are you using or is it stock?

Don't base your purchase decision on the Class classification. Sandisk's Class 2 cards have known to have stellar performances under ATTO.
See this thread... http://forum.xda-developers.com/showthread.php?p=5170215

pr0cl1v1ty said:
orange that should be a good card. if you have any way to put it into your computer and try to format it, via a usb conector ect. then give that a go. other wise it could be the rom your on, what type of rom are you using or is it stock?
Click to expand...
Click to collapse
Cyanogen Mod. Latest (4.2.12.2) but I've had this problem in previous versions. A friend's G1 has experienced similar problems with the same Transcend 8gb card, and I vaguely recall hearing warnings against using that brand w/ the G1, but perhaps I'm mistaken.
For now, I've deleted the EXT and swap partitions from the card and did a wipe so that all apps are running from internal memory. I haven't noticed any unmounts today, but last night the phone was unusable and this same sort of thing has happened before with the same card in both my original G1, and the warranty replacement (the warranty replacement was for an unrelated issue).

[Q] 32gb micro sd freezes phone once inserted

Its been a week since Ive been desperately searching with no luck!!!!!!!
I just baought a kingston 32gb class 6 micro sdhc but when ever i put it in my hd2 it just freezes up and as soon as I remove the card it works fine again.At first i though that it was a fake so I:
1)performed multiple tests,
2)reformated a 1000 times,
3)even putting 20gb of data just to make sure.
Turns out that it is authentic and it works perfectly on my girlfriend's htc BalckStone it also worked when I installed NAND (which i later removed due to insufficient memory).Ive been searching for weeks, I think its a windows mobile issue, any tips??

HD2 freezing with microsd
I have the exact same problem.
HD2 + 32Gb Kingston micro SD card (bought from ebay)
Freezes on card insertion. Unfreezes when card is removed.
Found any solution?

Do a google search for SD Formatter.
Try reformatting using that program.
Also, when you're reformatting, don't use the phone, use an external card reader or adapter.

andyffoo said:
I have the exact same problem.
HD2 + 32Gb Kingston micro SD card (bought from ebay)
Freezes on card insertion. Unfreezes when card is removed.
Found any solution?
Click to expand...
Click to collapse
If you ahve bought a 32GB SD card from ebay there is a very high probability that you have bought a FAKE 32 gb card.
If it was cheap its 100% a fake card.
These fake card are actually 1/2/4/8/16GB card but have been modded to report 32GB, some of them you can use but data will get corrupted as soon as you get near the real capacity. Some will just not work from the offset.
Stick your card into your pc via reader/adapter and run it through a drive scanning software and see if its got any bad sectors you will soon know if its fake or not.

The same issue with my 16gb microsdhc. On my friends Samsung Galaxy S it works, on microsd carder it works. But not on my HD2.

I had scanned my microsd with few scanners all of them shown that my SD is in perfect condition.
What about formating? What program should I use? And what formating options should be(file system and etc.)

Wolf741 said:
I had scanned my microsd with few scanners all of them shown that my SD is in perfect condition.
What about formating? What program should I use? And what formating options should be(file system and etc.)
Click to expand...
Click to collapse
Fat32, 32KB Cluster, Quick is fine usually but do a normal format to test your card

I red somewhere says that HD2 are compatible with 32GB SDHC class 2 only..

Same problem here…..
Is there any hot fix for the HTC HD2 to solve this problem?
The card is Kingston 32g class 4.

fransba said:
Same problem here…..
Is there any hot fix for the HTC HD2 to solve this problem?
The card is Kingston 32g class 4.
Click to expand...
Click to collapse
My Kingston 32gb class 4 has been working great for the past 5 months....

Jamaloogy said:
I red somewhere says that HD2 are compatible with 32GB SDHC class 2 only..
Click to expand...
Click to collapse
Not true at all.

fransba said:
Same problem here…..
Is there any hot fix for the HTC HD2 to solve this problem?
The card is Kingston 32g class 4.
Click to expand...
Click to collapse
This is an issue that has yet to be solved, unfortunately I cant get any real answer even after searching for weeks. My only solution now is just to buy a 16gb and use the 32gb for some other occasion.

apallohadas said:
Not true at all.
Click to expand...
Click to collapse
Oh, yes it is. At least mostly true, if not even absolutely true.
I've been using a class 2 32 GB Sandisk micro SDHC card for a year now on my HD, and it will go into my Leo as soon as I get it. Absolutely no problem at all, of course.
It's also the one to use on the HD7 to get the maximum available storage memory.
It was quite expensive when I bought it, but it never bothered me, neither did the Sandisk Compact Flash cards I'm using with my goo old Canon EOS 350D camera.
Some Kingston memory card seem to have compatibility issues with some devices (I'm thinking about EeePCs, too, as it's a very frequently reported problem), but it may be essentially related to higher speeds, as those cards drain too much current. The symptoms are exactly the same : the device will sometimes boot when mains powered, but will crash as soon as you disconnect the mains plug, and won't boot at all from battery power.
The HD2 (and HD7, as it's exactly the same hardware) is known for not loving too much current consuming memory cards, so you'd be wise to stick to class 2 only, as it's supposed to be what HTC recommends.
If you still want to use class 4 or 6 cards... Then don't complain if it doesn't work.

And no, it is not "absolutely true". While the HD2 may not r/w any faster no matter the card, any class will work just fine.
Sent from my HTC HD2 using XDA App

What did you do to get it working then?

jeffro217 said:
What did you do to get it working then?
Click to expand...
Click to collapse
Easy. I always first format my cards using a card adapter and a windows machine.
I know for a fact that class 6 microsdhc 32GBs work. It's what I have in my phone now. I also use a 32gb class 2.

I'm using a Kingston card. I've formatted, the computer sees a mass storage device with 30.2 gb available. However it locks the phone up in the boot sequence. Any Ideas?

jeffro217 said:
I'm using a Kingston card. I've formatted, the computer sees a mass storage device with 30.2 gb available. However it locks the phone up in the boot sequence. Any Ideas?
Click to expand...
Click to collapse
What program did you use to format it?
One recommended app, outside of the built-in windows app, is SD Formatter:
http://www.sdcard.org/consumers/formatter_3/
(Link leads to the SD Association, of which I have no affiliation.)
If you have a card adapter, format it there instead of while inside the phone. Good luck

You suggestion is right.
Correctly formatting the card first generally solves most of the problems.
However, most high class micro SDHC cards will probably drain too much current from the phone. You have to find a really serious brand, and a really good one.

I've tried the posted formatting tool. Is there a setting or something I'm missing? After an hour of formatting, nothing, same problem.
I put the card in a 3 year old blackberry curve I had before the HD2, and no problem. I then put an 8gb class 6 card I had in that same blackberry into my HD2 and it worked fine.
I'm trying not to have to return this card because I don't want to wait another week and a half for back shipping etc.. Please give me some hope

[Q] Recommendations for a new SDcard for XT720

My Korean Motoroli seems to be having big problems with the SDcard recently. Originally I had the factory-issued no-name 8gig class 4 in it and now I have some other no-name brand 16gig class 8 in it, but the problems still remain.
The phone will either "loose" many photos when I use the camera (not writing them to the card) or will even sometimes go to a black screen and then just reboot. Sometimes it even just simply hard-locks the phone requiring me to pull the battery.
What recommended bands/class of sdcard would fix this? Or is the problem something else?

marukii said:
My Korean Motoroli seems to be having big problems with the SDcard recently. Originally I had the factory-issued no-name 8gig class 4 in it and now I have some other no-name brand 16gig class 8 in it, but the problems still remain.
The phone will either "loose" many photos when I use the camera (not writing them to the card) or will even sometimes go to a black screen and then just reboot. Sometimes it even just simply hard-locks the phone requiring me to pull the battery.
What recommended bands/class of sdcard would fix this? Or is the problem something else?
Click to expand...
Click to collapse
Have you tried reformatting? Or scanning the disk for bad sectors?

sohrab.naushad said:
Have you tried reformatting? Or scanning the disk for bad sectors?
Click to expand...
Click to collapse
Yes, both. I even used the official SDcard formatting program.

marukii said:
Yes, both. I even used the official SDcard formatting program.
Click to expand...
Click to collapse
Can I ask which ROM you are using? What sort of modifications youve done to the phone? I myself use the stock class 2 8GB and have never had many problems. Since you have the problem on multiple SDcards, it seems like a hardware problem. Bit if you are using a customROM, maybe somethings messing up there. More information would be helpful.

sohrab.naushad said:
Can I ask which ROM you are using? What sort of modifications youve done to the phone? I myself use the stock class 2 8GB and have never had many problems. Since you have the problem on multiple SDcards, it seems like a hardware problem. Bit if you are using a customROM, maybe somethings messing up there. More information would be helpful.
Click to expand...
Click to collapse
I have the official, stock 2.2.1 rom (SKT_N_79.33.50R). I've rooted the phone and I've used Motomizer One-Click Optimizier on it.

good card on sale
http://www.play.com/Mobiles/Mobile/...rce=0&searchstring=samsung+sd&urlrefer=search
if you can wait till the 22nd

Hi!
I had the same issues. Also with the stock card and with a no name 16GB card.
Have bought a Samsung 8GB class6 PLUS card from here
Since I´m using this card. I haven´t had any problems. Phone is slidly faster and very stable now. No reboots. Apps2sd is working fine.

try-and-error said:
Hi!
I had the same issues. Also with the stock card and with a no name 16GB card.
Have bought a Samsung 8GB class6 PLUS card from here
Since I´m using this card. I haven´t had any problems. Phone is slidly faster and very stable now. No reboots. Apps2sd is working fine.
Click to expand...
Click to collapse
i have this card. It is great.
Might be even more useful now that we have ext4 enabled

IronMit said:
i have this card. It is great.
Might be even more useful now that we have ext4 enabled
Click to expand...
Click to collapse
That´s absolutely true.
Will try ext4 in the next days.

Okay, looks like that's the card I should buy. I found a Korean source for it here: http://item.gmarket.co.kr/detailview/Item.asp?goodscode=216437760
Hopefully It might fix some of my problems...

Well, I got the new SDcard (see above) and it seems to be a little better (slightly more responsive)... but the phone still locks up and and/or reboots when I take a photo sometimes. The chance of it happening seems to be less now, but it's still likely to happen.
Any other ideas? Have any other users had a similar problem to this?

Hey check out this thread (see my post #19). A good conversation about cards and classes. Maybe read before you buy and commit.
http://forum.xda-developers.com/showthread.php?t=1174045&page=2
Card type and class has much to do with camera quality and also video too.

Surprised there isn't more talk about this issue with all the sdcard issues we have. With HD recording and an 8mpxl camera it seems we need a better class card, I need to get a couple for my phones and I am trying to find the best buy on a samsung. My question for anyone who has experience is if I spend the money on a class 10 samsung, is it going to make a big noticeable difference? Will it stop a lot of the issues or is the issue more related to Android and even more so with XT720? Is there anyone who has upgraded who can answer? Seems it will but I would hate to spend the money and not get much improvement.

LibertyMonger said:
Surprised there isn't more talk about this issue with all the sdcard issues we have. With HD recording and an 8mpxl camera it seems we need a better class card, I need to get a couple for my phones and I am trying to find the best buy on a samsung. My question for anyone who has experience is if I spend the money on a class 10 samsung, is it going to make a big noticeable difference? Will it stop a lot of the issues or is the issue more related to Android and even more so with XT720? Is there anyone who has upgraded who can answer? Seems it will but I would hate to spend the money and not get much improvement.
Click to expand...
Click to collapse
I am currently using a Samsung Class 10 16GB card that I ordered somewhere online. My main Issue always was with transferring media and this card tackles the problem with ease, I do not get black screen problems anymore. The camera seemed ok with no major differences that I noticed, but usual camera freezes have reduced. Overall I would suggest an upgrade.

krishn said:
I am currently using a Samsung Class 10 16GB card that I ordered somewhere online. My main Issue always was with transferring media and this card tackles the problem with ease, I do not get black screen problems anymore. The camera seemed ok with no major differences that I noticed, but usual camera freezes have reduced. Overall I would suggest an upgrade.
Click to expand...
Click to collapse
It's the same for me. Since 1 day I replaced my stock 8gb sdcard by a lexar 8gb class 10 and no more problem to transfer (hope it will continue) and video record under cm7.2 is smooth.

Zachary57 said:
It's the same for me. Since 1 day I replaced my stock 8gb sdcard by a lexar 8gb class 10 and no more problem to transfer (hope it will continue) and video record under cm7.2 is smooth.
Click to expand...
Click to collapse
you don't get the blackscreen with CM7?
Sent from my Nexus S using XDA

LibertyMonger said:
you don't get the blackscreen with CM7?
Sent from my Nexus S using XDA
Click to expand...
Click to collapse
No,black screen issues are very rare. But have to admit they tend to happen at times,though negligible.

marukii said:
My Korean Motoroli seems to be having big problems with the SDcard recently. Originally I had the factory-issued no-name 8gig class 4 in it and now I have some other no-name brand 16gig class 8 in it, but the problems still remain.
The phone will either "loose" many photos when I use the camera (not writing them to the card) or will even sometimes go to a black screen and then just reboot. Sometimes it even just simply hard-locks the phone requiring me to pull the battery.
What recommended bands/class of sdcard would fix this? Or is the problem something else?
Click to expand...
Click to collapse
Hi maruki, does it fix your sd card problem. I am also experiencing sd card problem when taking photographs or any activity that will require writing to sd card. (Downloading, etc) I am also suspecting it is a sd card issue and hoping the problem is not on our device. I also plan to buy new one since I am using the stock mem card that comes with the unit. I want to know if it worked for you.
by the way, setting the camera to lower resolution seems to fix the sd card writing failure in my case.

there is new type of sd card, UHS-1 which seem to to deliver a very high speed and write, topping any current sd card in market now as decribed here: http://www.engadget.com/2012/04/05/samsung-ultra-high-speed-microsd/
maybe when it's available I'll purchased one, also the best thing is that it can be used for swap ram to fix xt720 low ram problem. do you think so?
but I'm also not sure if these uhs-1 cards are compatible with xt 720 or not. If anyone plans to buy one when it's available please review after that i'll also do a review when I get one.

class 10
buy a class 10 memory card

woke up to a defective external sd card

While note really note 4 related. I woke up and turned on my phone this morning to find a flashing memory card icon.
Sure enough checking the phone properties it was not showing the external SD (samsung pro 64gb)
Is there a program to try and recover whats on there. I had so many pictures of my kid it would kill me to lose them.
HELP !!!!!!

Ten words

Do you have custom recoverey installed?? I would get that card out of the phone asap and put it in an sd card adapter. And see if your pc reads it..
If your home pc does not see the card unfortunatly the card may be toast..
I lost a 64 about 2 weeks back..
In my N4. No warning phone froze up and the card just died

yes have twrp with CM 12. I tried the adapter and no go. Going to try and give wondershare a shot just for the heck of it

https://www.google.com/search?site=...1c.1.62.mobile-gws-hp..0.7.1384.3.c6zY844N5VU

The freezer is your last hope
https://www.google.com/search?site=...c.1.62.mobile-gws-hp..0.16.4122.3.rLuCQldF4VY

note 4 same pRobles message and sd card Feb 25, 26
Suzook1 said:
While note really note 4 related. I woke up and turned on my phone this morning to find a flashing memory card icon.
Sure enough checking the phone properties it was not showing the external SD (samsung pro 64gb)
Is there a program to try and recover whats on there. I had so many pictures of my kid it would kill me to lose them.
HELP !!!!!!
Click to expand...
Click to collapse
Sookui. . Same issue here same time frame
No texts from other tmobile peeps for 24 hours. Then I restarted my phone they all came in , still delayed almost 2 days later.. pictures cannot be downloaded with my wifi..sent over by text..I know this because someone sent me a screen shot via text..I was in the house. My mobile data was ogf. When I left I turned mobile on and then I was able to open that text.
now I try to open spotify and it says no sd card? What? I have had spotify for a couple years..with prob 1000 songs..
what is going on???
Dawn

it wont help now, but this is why you must back up your stuff on a regularly scheduled basis; once a month, at the very minimum..
hope one of these methods works for you; never heard of the freezer method..

I've been using 32s, personally. I think the 64s are more temperamental on these phones. But I would like to go bigger.
---------- Post added at 04:43 PM ---------- Previous post was at 04:39 PM ----------
The freezer buys you enough time to get your files.
I once almost literally had a gun to my head to get contracts back. We threw the hard drive in the freezer and put it back into the cpu long enough to get the contracts.
Same idea with the SD cards.

I have had the same problem with 2 64gb microsdxc cards. Strontium 64gb 533x and lexar 64gb 300x. Woke up to error sd card has been removed unexpectedly. I got two replacements from lexar but same problem. Then decided to go for Samsung 64gb pro. It's working fine for the past one month. I think it's more of a quality issue. I have used Samsung 32gb sdhc card for over 5 years before I decided to switch to 64gb.

I've had my Samsung 64gb for maybe 6 months with 0 issues. Prior had a sandisk 64gb that never worked right. Always had weird problems.
It didn't just stop, it first had unbearably slow write and read speeds. Music would stutter and doing backups to the SD card to ages. Then I copied all my stuff ASAP and 2 days later it failed completely.
This Samsung card is a beast.
Sent from my SM-N910T using XDA Free mobile app

Avoid Lexar/PNY 128GB micro SD

http://www.bhphotovideo.com/c/produ..._128gb_hi_performance_sdxc_uhs_1_card_60.html
I read the feedback after I purchased it that it's incompatible with LG devices.
It works fine with Samsung Tab Pro and Xperia Z Ultra, but G4 cannot use this memory. It's either not show up or suddenly unmounted.

Let us know if you find a 128GB that your VS986 is happy with.
I use the 64GB version of that exact PNY card in another phone without any issues for several weeks months now., then bought a Samsung 128GB because I needed a larger card.

I am actually using a Lexar 128gb in my h815 no problems at all. Also have a second one in my v500 which works fine too. No unmounting problems at all.

mingkee said:
http://www.bhphotovideo.com/c/produ..._128gb_hi_performance_sdxc_uhs_1_card_60.html
I read the feedback after I purchased it that it's incompatible with LG devices.
It works fine with Samsung Tab Pro and Xperia Z Ultra, but G4 cannot use this memory. It's either not show up or suddenly unmounted.
Click to expand...
Click to collapse
Sony's firmware has a own sd card knowing system. I have used my Xperia Z1 for 2 years, whenever I plug a new sd card it was offering me format it or it was scanning almost 5 minutes.
I suggest you format it first ExFat then format it FAT32 in windows. After you plug in the phone format it in settings- storage-format sdcard.
If your sdcard is not broken or it had not harware problem, above instructions will fix all problems...

Lexar 128GB SD card
Been using one I bought from B&H Photo for months now on my h811 with no problems

seetru said:
Been using one I bought from B&H Photo for months now on my h811 with no problems
Click to expand...
Click to collapse
Have a question on my SD card in my LG G4. Not having any problems but thought someone here may know. Using a sandisk 64 gig and when looking at in ES file explorer or the stock explorer instead of it showing up as ext sdcard like all my other phones it shows up named 4C5e-5C17.
Any reason for this? Attached a screenshot. It's working fine just not what I am used to seeing.

lowender62 said:
Have a question on my SD card in my LG G4. Not having any problems but thought someone here may know. Using a sandisk 64 gig and when looking at in ES file explorer or the stock explorer instead of it showing up as ext sdcard like all my other phones it shows up named 4C5e-5C17.
Any reason for this? Attached a screenshot. It's working fine just not what I am used to seeing.
Click to expand...
Click to collapse
when i formatted to exfat with my phone it assigned a new id number but before i formatted it showed as all zero as id number

mingkee said:
http://www.bhphotovideo.com/c/produ..._128gb_hi_performance_sdxc_uhs_1_card_60.html
I read the feedback after I purchased it that it's incompatible with LG devices.
It works fine with Samsung Tab Pro and Xperia Z Ultra, but G4 cannot use this memory. It's either not show up or suddenly unmounted.
Click to expand...
Click to collapse
I know a few people who use 64GB and 128GB microSDs from PNY for some time now. No issues so far. Chances are that some of them were fake. Happens everywhere. I bought a dozen of 32GB and 64GB of Samsung microSDs respectively. Two of the 32GB ones and four of the 64GB ones turned out to be obvious fake and surely enough, didn't work after a few write cycles. Also the colors didn't match, some didn't even had the S/N printed on the back. Wasn't even bough on some weird internet marketplace. I bought the from a legitimate local store in bulk.

nitrous² said:
I know a few people who use 64GB and 128GB microSDs from PNY for some time now. No issues so far. Chances are that some of them were fake. Happens everywhere. I bought a dozen of 32GB and 64GB of Samsung microSDs respectively. Two of the 32GB ones and four of the 64GB ones turned out to be obvious fake and surely enough, didn't work after a few write cycles. Also the colors didn't match, some didn't even had the S/N printed on the back. Wasn't even bough on some weird internet marketplace. I bought the from a legitimate local store in bulk.
Click to expand...
Click to collapse
For that very same reason https://www.raymond.cc/blog/test-an...b-flash-drives-bought-from-ebay-with-h2testw/
I now run h2testw on all storage devices I buy, no matter the source.

Now this card works 100% with C5 ultra.

I had issues with the first one that I had, but Amazon sent me a replacement and it has been fine.

my card too got corrupted the other day, the data is still on there but everytime i put it in the phone it says its corrupted. when i try to access it on the pc i can't format the card because it says it write protected

DaMagicTicket said:
my card too got corrupted the other day, the data is still on there but everytime i put it in the phone it says its corrupted. when i try to access it on the pc i can't format the card because it says it write protected
Click to expand...
Click to collapse
Were you able to read the files from the SD card using your PC to save them? Is the phone unable to format the SD card?
You might want to give this a try for formatting in PC: https://www.sdcard.org/downloads/formatter_4/index.html

I'm using pny 128 card on my Verizon phone no problems so far

I'm using a SanDisk 128gb card and its working beautifully
Sent from my VS986 using Tapatalk

divineBliss said:
Were you able to read the files from the SD card using your PC to save them? Is the phone unable to format the SD card?
You might want to give this a try for formatting in PC: https://www.sdcard.org/downloads/formatter_4/index.html
Click to expand...
Click to collapse
yeah i can copy the file over but it cant be formatted because it says its write protected even with the link you gave me

DaMagicTicket said:
yeah i can copy the file over but it cant be formatted because it says its write protected even with the link you gave me
Click to expand...
Click to collapse
1. Try formatting in the phone or another device without microSD adapter.
2. Try a different microSD adapter with PC for formatting and confirm write protect switch is off.
3. If one and two fail, return to seller or RMA to PNY.
Backup up data firstly, of course .

divineBliss said:
1. Try formatting in the phone or another device without microSD adapter.
2. Try a different microSD adapter with PC for formatting and confirm write protect switch is off.
3. If one and two fail, return to seller or RMA to PNY.
Backup up data firstly, of course .
Click to expand...
Click to collapse
...or use a stand alone dedicated micro SD reader.

I also tried the PNY 128gbyte sd card (it was on sale). My G4 just spit it out no matter what I tried. Also an older 32 gbyte Kingston one.
What ony seems to be working is a high tier version, like the Sandisk extreme (90 MB/s)
The 128gb PNY works fine in my Note 10.1 2014 though
Nexus 4 & 7 (root), Note 10.1 2014 (root), LG G4 H815 (stock)

I'm using a Sandisk 128 GB card with no problems. FYI.