Please ensure following steps :
1. Connect with a genuine or certified USB data cable.
2. Set to 'File Transfer' (MTP Media Transfer Protocol) mode.
3. Click on 'Switch Phone Into Accessory' button. Select your device from the dialog list.
4. "Allow accessory to connect? Do you want to connect your device to this Mac?" will popup for first time, tap Allow button to continue
5. When your phone is in accessory mode. "Open WARMKEY when this USB accessory is connected?" will popup for first time, tick `use by default for this USB accessory` and tap OK
6. On WARMKEY app, please verify PIN and click 'Connect For Account Authorization' button.
7. Select your 'Account' at WARMKEY app. If your WARMKEY didn't prompt for account selection.
8. Still no luck? Contact us at discord

Please ensure following steps :
1. Make sure your device turn on USB debugging option.
2. Connect with a genuine or certified USB data cable.
3. Set to 'File Transfer' (MTP Media Transfer Protocol) mode.
4. Click on 'Switch Phone Into Accessory' button. Select your device from the dialog list.
5. When your phone is in accessory mode. "Open WARMKEY when this USB accessory is connected?" will popup for first time, tick `use by default for this USB accessory` and tap OK
6. On WARMKEY app, please verify PIN and click 'Connect For Account Authorization' button.
7. Select your 'Account' at WARMKEY app. If your WARMKEY didn't prompt for account selection. WinUSB driver might not be installed. You can install WinUSB using the Samsung Android USB Driver tool from here.
8. Still no luck? Contact us at discord