JDY-08 Bluetooth LE Module - Datasheet, Fritzing part

Using Arduino Networking, Protocols, and Devices
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They use different chipsets.

My JDY-08 says +ERR to every command I send. The JDY-10 mostly worked command wise (could save name etc) but I could not get it into "data" mode. Some say it's automatic once connected but mine wasn't.