Can you help us to change the imei of this router because i have a specific simcard that works only with the specific imei?

@Satheskumar Satheskumar wrote @Kevin_Z Official firmware is abailable for MR600 V1 with band selction ? Band selection settings made in beta firmware should remain set if you then update to release.

Cant aggregate same bands The router supports same band aggregation or no 3+3 7+7 20+20 Greece ISP= Cosmote or in my area doesn't support aggregate same bands?

Incidentally, encountered a bug in the beta firmware: After I've chosen bands 3 and 28 it connected to them. I switched to 7 and 28, but it stayed connected to bands 3 and 28. I set band a and band b