[quote user="Aslak N."]
Should have been fixed in the 1.3.1 release which is out now.
Aslak
[/quote]
I am still seeing this issue with 1.3.1. I upgraded firmware on the USB dongle to 1.3.1 and used the Btool that came with 1.3.1
But I'm still seeing the problem that after a simple write, I get Response Timeout. Sensor on other side is also a CC2541 based device.
However, if I write using BLE explorer on iOS, I am able to write and read the value without a timeout.