1. Reset the phone you want to use for cold storage. Settings > General > Reset > Reset All Settings
2. Install COINiD Vault. #Apple store URL#
3. Remove SIM card if you have not already. Then forget all Wi-Fi networks. Settings > General > Reset > Reset Network
4. Turn on Flight Mode, activate Bluetooth and make sure Wi-Fi is disabled.
6. Now you are ready to use your COINiD Vault and continue with the Cold Wallet setup