MR6110 Doesn't work on 5G N78

[ASM92]

Hi experts, 

I have an issue with my router, where it can't connect to the 5G network in my country. 

my model is MR6110-1A1NAS, and i have changed the firmware to another model firmware which is "MR6110-1S4MES". but still it can't connect to the 5G network. 

Can I add the N78 to the BAND list of the router? 

I have used "AT!BAND=?" command to list the bands available but there is no support for N78: 

at!band=?
Index, Name,         GW_Mask          LTE_1-64         LTE_65-128       NSA_1-64         NSA_65-128       NSA_257-320      SA_1-64          SA_65-128        SA_257-320       Mode
00, All,             0002000000400000 0000000000000045 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0
02, LTE All,         0000000000000000 0000000000000045 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 1
03, LTE and NR5G,    0000000000000000 0000000000000045 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0

                                      0000800000000000 - LTE B48
                                      0000200000000000 - LTE B46
                                      0000000020000000 - LTE B30
                                      0000000010000000 - LTE B29
                                      0000000000002000 - LTE B14
                                      0000000000000800 - LTE B12
                                      0000000000000040 - LTE B7
                                      0000000000000010 - LTE B5
                                      0000000000000008 - LTE B4
                                      0000000000000004 - LTE B3
                                      0000000000000002 - LTE B2
                                      0000000000000001 - LTE B1
                                                       0000000000000002 - LTE B66
                                                                        0000000020000000 - NR5G N30
                                                                        0000000010000000 - NR5G N29
                                                                        0000000000002000 - NR5G N14
                                                                        0000000000000800 - NR5G N12
                                                                        0000000000000010 - NR5G N5
                                                                        0000000000000002 - NR5G N2
                                                                                         0000000000001000 - NR5G N77
                                                                                         0000000000000002 - NR5G N66

[smithjohns00200]

thanks iys very helpful

[W1lliam]

MR6110-1A1NAS is built for ATT service which has no n78. When you are doing hack on its FW, it might damage the device from its function perspective, not even to enable bands that is not built for the device.