Finding "extra quality" firmware requires diligence. The ZTE H196A has several hardware revisions and regional software variations. Installing a generic firmware version can lead to a "soft-brick," rendering the device unusable. True quality firmware is one that is:
He reasoned that "Extra Quality" probably meant some ambitious hacker had unlocked the hidden potential of the chipset, perhaps enabling telnet access or boosting the radio gain. zte h196a firmware extra quality