The problem is probably with Jio 4g and not with samsung. As observed,Vodafone Airtel or Airtel and Idea 4g sims work perfectly fine with dual sim. Reliance Jio wont remain active if mobile data is taken from another sim card on the device. You must access internet services from jio 4g to keep it enabled. If you want to use both of your sim cards, then place JIO4G on sim 1 and airtel on sim2.
Srinivas V
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