If you have been in VR for around 30 minutes or longer it is possible that your mobile device is overheating. Sadly there is not much you can do once this has occurred. Your best solution is to exit VR and allow your mobile device time to cool down.
You can try a few things to increase your lifespan in VR on your mobile device. Try turning down the brightness as much as you find tolerable, also run in Airplane Mode with WiFi enabled and Do Not Disturb Mode. Additionally, make sure you have closed down other background applications you're not using to free up your device's resources as much as possible.
AltspaceVR community members have reported that environmental conditions greatly affect the duration of the phone prior to overheat. People in colder climates tend to be able to stay in-VR longer than those in temperate and tropical climates. We've seen many of our community members extend the life of their phone by applying gel-based cold packs. Please do so with caution, and never use water-based cooling methods, as condensation may damage your phone's electronics.
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