In this video, I clarified the 30 MHz bandwidth issue observed in my review video of the Zotek ZT-703S. I also updated the firmware on both my ZT-703S and ZT-702S.
https://youtu.be/h4n2KtGNRKY
00:00 Bandwidth issue clarified
04:17 Current consumption in high performance mode
05:38 Rel mode, charging indicator
06:40 703S firmware update
08:26 702S firmware update
09:23 Did the firmware update fixed the issues?