Update from 21.10.20: Pieps has now announced an exchange program for the DSP Sport/Pro devices with the affected switch on Instagram. Whether devices are replaced free of charge or at a reduced price compared to a new purchase probably depends on the age of the affected device.
A storm is currently raging on Instagram about Pieps/Black Diamond avalanche transceivers. TGR athlete Christina Lustenberger published several posts describing an accident in spring in which Nick McNutt was buried and injured. His avalanche beacon, a Pieps DSP Pro (same as photo at right, but gray housing), was still on when checked that morning, but stopped transmitting when it mattered. The group located McNutt with probes and subsequently found that the device was switched to off. Lustenberger demonstrated on Instagram that the switch of a DSP Pro device of the corresponding generation can be moved from send to off with a little effort without pressing the lock button. According to Lustenberger and McNutt, this could also happen in an avalanche.
An initial reaction from Pieps on Instagram after Lustenberger's post met with little approval. Pieps pointed out to users that avalanche transceivers are everyday objects that must be regularly checked for correct function and used correctly. There was no design fault with the switches on the DSP Sport and Pro devices. In hundreds of comments on this post, users expressed their irritation: Surely you can't blame the users for the switch breaking.
Pieps asserted that they had already requested used DSP Sport and Guide devices from their mountain guide and opinion leader teams in the spring after McNutt's accident and had thoroughly checked the function of the switches, including in comparison with devices from other manufacturers. No fundamental problem was found. As with any mechanical part, signs of wear can occur with heavy use, which is why you should regularly check that everything is working. If cracks are visible in the plastic of the switch, the device must be sent in. A press release states: "An appliance fault can therefore be ruled out by inspecting the appliance and handling it properly."