A: The ZTE MF190S has different frequency bands for different regions. An Etisalat unit favors Band 3 (1800MHz) and Band 20 (800MHz). If your new carrier uses Band 7 (2600MHz), the modem may drop to 2G.
In (where Etisalat became 9mobile), NCC (Nigerian Communications Commission) ruled that locking modems is anti-consumer. You have a legal right to unlock. zte mf190s etisalat unlock
Some newer Etisalat versions have a "hard lock" that requires specific patch files. A: The ZTE MF190S has different frequency bands
Unlocking your ZTE MF190S Etisalat is a relatively straightforward process. Here are the steps: zte mf190s etisalat unlock