to change the device information in /Config/auth.json to YOUR personal device, you will need android-sdk with adb (and drivers for your phone). Here are the correlating values with the command to run to grab the value off your phone:
"DeviceId": "", // adb.exe shell settings get secure android_id
"AndroidBoardName": "", // adb.exe shell getprop ro.product.board
"AndroidBootloader": "", // adb.exe shell getprop ro.boot.bootloader
"DeviceBrand": "", // adb.exe shell getprop ro.product.brand
"DeviceModel": "", // adb.exe shell getprop ro.product.model
"DeviceModelIdentifier": "", // adb.exe shell getprop ro.product.name
"DeviceModelBoot": "qcom",
"HardwareManufacturer": "", // adb.exe shell getprop ro.product.manufacturer
"HardwareModel": "", // adb.exe shell getprop ro.product.model
"FirmwareBrand": "", // adb.exe shell getprop ro.product.name
"FirmwareTags": "", // adb.exe shell getprop ro.build.tags
"FirmwareType": "", // adb.exe shell getprop ro.build.type
"FirmwareFingerprint": "" // adb.exe shell getprop ro.build.fingerprint