I know a lot of people that use 1 amp to make it work with out problem. It’s not a power issue.
But Current is dipendent from voltage. P=i x v so if i have 30w at 24v the amp will be 1.25 that is an huge amount for 5v that module use. Someone say that issue is becouse voltage is low but is low also for the old module. I don’t know wich problem has em160 but I’m still waiting someone of quectel that say they are working to solve but nothing from them