Wileyfox Swift won't boot, identifies as QHSUSB_BULK
We received your device and were also not able to get it back into normal boot, so we changed the PCB (mainboard). Your device will be returned today.

Though we strongly want to advice you to accepted the FOTA update to Android 7, as CyanogenOS (we flashed the latest CyanogenOS, Android 6 version, namely ZNH2KAS7EB on your device) is no longer supported and you are running an Android version with security patches from 2016. With this software, your device is vulnerable for several security issues like the Kracken WiFi (patch is coming) and the Blueborn Bluetooth (patch already available) vulnerabilities.

But besides that, some recently updated applications (Facebook, Spotify, Instagram) from the PlayStore are conflicting with CyanogenOS and causing the phone to freeze/crash and eventually the phone will get in a bootloop where you won't be able to get out of, unless you manually flash your device to Android 7 through the recovery.

If you decide to not accept the update to Android 7, we can no longer help you in the future in case of warranty claims.

With regards,

Team Wileyfox