I have a 16 GB Sandisk Ultra microSDHC UHS-I Card and there should be no compatibility problems with non UHS-I devices.
When I insert the card in my smartphone Huawei Y300, the card is recognized and works.
But when I turn the phone off and on (or remove battery) so there is nu current for some time, the card is not recognized anymore and the smartphone returns to internal storage.
The only way to re-recognize the card is open the back of the phone, remove the card and insert it again,
I turn off the phone frequently, so this card behaviour is very unpractic.
Summary: the card is only recognized in the first session.
What can be done?