mmi code error

[mahfooz1]

i want to know what is this error. Its because of software problem or a sim network problem??

[Phoenix7]

sim network problem. please check the code whether it applicable for your desired sim card.

[Mihai]

The small "R" from cellphone signal is "Roaming"...

[Zambeee]

the SMALL R FROM CELLPHONE SIGNAL

[Madinakhan]

5050