IPV Mini30w SX130 Specs from Pioneer4you site:
Specs for SX130 Chip from YiHi product listing:
YiHiEcigar SX130 30W
Please note:
Neither site list USB as Passthrough for the SX130 chip- Only for charging
This is not a Manufacturing flaw. It is a selling flaw brought on mostly by Seller misinformation, Chinese misinterpretation and user misunderstanding. USB cannot support High Drain so Passthrough would depend greatly on the charge condition of the battery and the coil resistance on the mod.
Failure to understand may cause USB or Mod failure.