Test your Micro SDHC card

[balders]

More and more people seem to be having issues with dodgy SD cards, me included.

The link below sends you to a site where you can download a small programme (windows only) to test your flash device. You can also upload your results to the site to warn people of dodgy sellers.

Granted it only tells you after you have purchased the card if its dodgy, but it provides you with valuable ammo with dealing with a dodgy seller.

H2testw 1.4 ? Gold Standard In Detecting USB

 

[LED]

A lot of cards sold on ebay especially shipping out of hong kong are defective in some way. Manufacturers are known to sell defective cards to bazaar operators for super cheap. These cards look authentic as they have come from the same line as the good cards.

Sent from my Eris using Tapatalk

 

[balders]

These cards look authentic as they have come from the same line as the good cards.k

Completely agree, there are no superficial differences. Even when the drive is mounted to a computer it will show the right amount but the majority of it will be unusable.

These are my results.

32GB Micro HCSD Card from Ebay
The media is likely to be defective.
1.9 GByte OK (4082495 sectors)
29.2 GByte DATA LOST (61435073 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
29.2 GByte corrupted (61435073 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x000000007c967e00
Expected: 0x000000007c967e00
Found: 0x0000000000000000
H2testw version 1.3
Writing speed: 1.46 MByte/s
Reading speed: 3.50 MByte/s
H2testw v1.4


4GB Sandisk Micro HCSD Card from Desire
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 2.11 MByte/s
Reading speed: 3.25 MByte/s
H2testw v1.4

 

[Ebaumann]

It figures I see this after I bought a card from HongKong on Ebay, this guy has literally 13 thousand positive feedback though so who knows.

 

[figo2100]

hello i bought some cards from china and i try to test it by H2testw this is the result
The media is likely to be defective.
121.9 MByte OK (249808 sectors)
859.0 MByte DATA LOST (1759280 sectors)
Details:859.0 MByte overwritten (1759280 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
0 KByte corrupted (0 sectors)
2 MByte aliased memory (4096 sectors)
First error at offset: 0x00000000077fa000
Expected: 0x00000000077fa000
Found: 0x000000003d3fa000
H2testw version 1.3
Reading speed: 9.00 MByte/s
H2testw v1.4
so is it fake or a problem with media or what?
Best Regards
Ahmed