topic new 256gb micro sd card problems in Z Series

new 256gb micro sd card problems

exsanguinator — Tue, 12 Sep 2017 16:55:16 GMT

I have just got a new 256gb card.

Inserted the new card and it formatted ok,

it shows me 250gb free.

With some standard formatted files and folders.

Fine... that's normal.

I previously had a 16gb card and copied the complete card to a new folder on my laptop.

I then drag and drop all the 16gb card files in this folder to the new installed card while its usb connected to my laptop.

When completed, i can open the files from the 256gb card in phone while is still connected to my laptop, and all the folders and files are there.

When i disconnect the phone, i open file manager on the phone and all the folders are there but no files are in them.

When i reconnect the phone to the laptop and open the 256gb sd card, i can now only see the folders but nothing is in them.

Whats happening?

Anyone had this problem before ?

Any solutions?

Thank you

exsanguinator — Sun, 17 Sep 2017 09:16:07 GMT

I've read a good article on those cheap high capacity micro sd cards sold on ebay on google,

and maybe why my one isn't working as it should.

Once i test it with H2testw,I'll report back to say if I've been conned or not.

exsanguinator — Mon, 18 Sep 2017 08:58:54 GMT

Finished the test on my new 256gb card,it's a fake

.so......moral of the story.... don't buy cheap cards off ebay, they are all scammers.

Here's the test result.....

Warning: Only 255935 of 255936 MByte tested.

The media is likely to be defective.

177.0 MByte OK (362679 sectors)

249.7 GByte DATA LOST (523792201 sectors)

Details:36.5 KByte overwritten (73 sectors)

0 KByte slightly changed (< 8 bit/sector, 0 sectors)

249.7 GByte corrupted (523792128 sectors)

36.5 KByte aliased memory (73 sectors)

First error at offset: 0x000000000b116e00

Expected: 0x000000000b116e00

Found: 0x00efbe68c0f74e57

H2testw version 1.3

Writing speed: 7.45 MByte/s

Reading speed: 6.44 MByte/s

H2testw v1.4