Blockstream Jade works with Bitcoin mainnet as well as testnet (and regtest). Please note that once a wallet is saved to Jade via PIN, the initialized wallet will only with the network that was chosen during setup. However if users have a mainnet initialized Jade and want to temporarily use a wallet on testnet, they can do so by using Recovery Phrase Login - which will prompt for a mainnet vs. testnet selection every time it is used and bypass the PIN-saved wallet. Quickly Swap Between Mainnet and Testnet The following instructions are geared toward users with a mainnet initialized wallet protected via PIN, but would like to temporarily access testnet. 1. Turn on your Blockstream Jade and select Advanced, then choose Recovery Phrase Login. 2. Select Scan QR and point Jade's camera at a supported backup recovery QR (such as a SeedQR). Jade will automatically proceed to the next screen once your QR is recognized. Alternatively, select Advanced to manually type your recovery phrase. 3. When prompted for your desired connection method, choose USB or Bluetooth (mobile only) and connect Jade to your Green app. Then, choose testnet as your network selection. Note: You may need to enable Testnet in App Settings in order to have the option appear in your desktop or mobile version of Green. Change Initialized Wallet to Testnet If you are already using a mainnet initialized (PIN protected) wallet but would like to switch it to testnet, you will need to perform a factory reset. Then, continue through the normal setup process and select Testnet when prompted for your network selection. You may need to enable testnet in App Settings in order to see this option.