then jio cannot get genuie customers
Most of genuine users have taken the jio sim already for testing using barcode from existing 4g phones.Now they want to port their existing number to jio and use it regularly means they cannot port.Because they have already generated code, cannot generate second code on same mobile.So either they have buy new phone or stay with the present operator.Having already one 4g phone no one will want to invest in new phone.In this way jio will not get custmers for regular use.
OR
Jio should give option to deactivate/cancel the already taken JIO sim and port existing regular number inplace of cancelled JIO number without need for Bar code