@JSB RG-58 is really not suitable for 4G over 10m length, particularly on the higher frequencies. You get up to 10 dB attenuation on 1.8 GHz (90% of the signal power is lost in the cable).

I think the MR600 has reached end of life, it doesn't get firmware support anymore.

@Sunshine So MR600v1 is end of life? I see no more firmware support since half a year

@dravid Have you also tried the official firmware? Maybe you have "4G only" selected?

Sunshine wrote Comparing with V1, V2 would support the manual band selection on the initial firmware. @Sunshine So the difference between v1 and v2 is only software? When can v1 have v2 software?

@darant No, this adapter won't do anything good but cause an impedance mismatch and additional attenuation on certain frequencies. Those adaptors shouldn't be used for RF.