How to Identify a Fake Memory/SD Card

With the high demand of smartphones, tablets and other high level gadgets in Nigeria, the purchase of getting a memory/SD card to add as an additional storage to the memory of the device is imminent.


The high demand for these memory cards has seen imitations arise which makes it difficult for a buyer of such memory cards to distinguish between a fake memory card and an original SD card.

If you have been searching on how to differentiate between a fake memory card from the original micro SD card, then you are in the right place at the right time because we shall give you a full detailed analysis on how to identify a fake memory card from the original SD card.

How to Identify a Fake Memory Card

Step 1: To know whether your SD card is fake, check for its serial number and the manufacturing country’s identity. Don’t just look at the picture only as all memory cards (both fake and original look alike)

Step 2: Perform a full format on the memory card. A full format does a deeper scan and writing to the card. If the full format fails or you get errors like “Format SD card”, you may have purchased a fake memory card or a defective micro SD card.

Step 3: Do a H2testw to detect fake SD cards. H2testw is a simple free tool used to detect counterfeit memory cards. It works mainly on computers. Download this tool in your computer. After which you connect your SD card using a card reader to your computer, follow the instructions.


If you get a feedback like this (see below), then its probably you have purchased a fake micro SD card

The media is likely to be defective.
3.8 GByte OK (8084847 sectors)
58.6 GByte DATA LOST (122921617 sectors)
Details:710.5 KByte overwritten (1421 sectors)
7.6 MByte slightly changed (< 8 bit/sector, 15630 sectors)
58.6 byte corrupted (122904566 sectors)
710.5 KByte aliased memory (1421 sectors)
First error at offset: 0x000000003cef8470
Expected: 0xeb7ac43a237c5170
Found: 0xeb7a843a237c5170
H2testw version 1.3
Writing speed: 9.24 MByte/s
Reading speed: 10.8 MByte/s


Invest in a good SD card. Do not go for the cheaper ones sold on the streets by hawkers. Visit trusted stores like SLOT or online stores like Amazon, Ebay, Konga, Jumia and purchase an original SD card. Remember you stand the risk of loosing important files if you use a counterfeit memory card on your phone.

Hope this helps. If you know any other method to detect a fake memory card, you can drop it in the comment section, we will want to hear and don’t forget to share this post with your friends.


Below is a video proof of detecting a fake SD/memory card

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