Just a quick and simple way to check if your SD card is potentially a fake
-
Utilises Lua Player Plus Vita (lpp-vita). Learn more.
The basics of the app are that it will look to see the capacity of the SD and compare it with a table of SD values to see if it falls within the peramiters of a genuine SD. For example a genuine 256gb SD card should register as no more than 238gb after formatting.. however, many fake cards will show as 249gb, so the app will flag this as fake.
Most fake SD cards on the market are easy to spot as the reported capacity is nowhere near a genuine cards value so this method is usually quite acceptable. HOWEVER.! if a fake card manufacturer starts using more accurate values then this method would be pointless but i highly doubt that will likely happen and time soon.