Can't use sd card as internal storage

Is it a new card or one that you had around?

 

I agree about the compatibility. SD cards from reputable manufacturers, and with both fast data transmission speeds and large storage capability can be had for very little money these days. Here are three really great offers from Amazon for large cards with supercharged data speeds.



Samsung EVO 32GB Class 10 Micro SDHC Card with Adapter (MB-MP32DA/AM) Amazon.com: Samsung EVO 32GB Class 10 Micro SDHC Card with Adapter (MB-MP32DA/AM): Computers & Accessories

SanDisk Ultra 64GB microSDXC UHS-I Card with Adapter, Grey/Red, Standard Packaging (SDSQUNC-064G-GN6MA) Amazon.com: SanDisk Ultra 64GB microSDXC UHS-I Card with Adapter, Grey/Red, Standard Packaging (SDSQUNC-064G-GN6MA): Computers & Accessories

Samsung 64GB EVO Class 10 Micro SDXC Card with Adapter up to 48/MB/s (MB-MP64DA/AM) Amazon.com: Samsung 64GB EVO Class 10 Micro SDXC Card with Adapter up to 48/MB/s (MB-MP64DA/AM): Computers & Accessories

And for the really budget conscious there's a 16GB card from Kingston;

Kingston Digital 16 GB Class 4 microSDHC Flash Card with SD Adapter (SDC4/16GBET) https://www.amazon.com/dp/B00DYQYLQQ/ref=cm_sw_r_other_apa_PZDvxb5DHCPHJ

...although for the price I would go for larger and faster if it's within your budget. The Samsung EVO 32GB is less than twice the price but is far more than twice the value at twice the storage and better than ten times the data speeds (up to 48 Mb/S versus only 4 Mb/S for the Kingston), IMHO.

Sent from my XT1585 using Tapatalk

 

it was compatibility problem or it was damaged . choose another SD to test for the compatibility problem . or insert to a new phone to test . if get the same error. maybe it was damaged . you need to try to repair.