Link Mobile Device
Link Mobile Device
Link Mobile Device lets you verify your wallet once on desktop and continue trading on mobile with less friction.
After you complete wallet signing on PC, you can link your mobile device by scanning a QR code and entering the matching password. This avoids repeated wallet signature prompts when switching between desktop and mobile.
How to link your mobile device
On desktop, click
Link Mobile Devicein the top-right corner.
Complete a signature to grant mobile API wallet access.
Press and hold the reveal button for 2 seconds to display the QR code.

On mobile, scan the QR code shown on your desktop.

Enter the matching password on mobile to complete login.

Once linked, you can continue trading on mobile without repeating the wallet login flow each time.
What you can do after linking
After linking your mobile device, you can use your mobile session for day-to-day trading more smoothly, especially when moving from desktop to mobile during active market hours.
This flow is designed to reduce repeated login friction while keeping wallet authorization anchored to your desktop wallet session.
Important limitations
For security reasons, wallet-signature-required actions must still be completed on PC.
This includes:
Withdrawals
EVM funding transfers
Vault deposits and withdrawals
Staking and unstaking
Cross-chain deposits
If you try to complete one of these actions from a linked mobile session, SoDEX will prompt you to return to desktop to finish the required wallet signature.
Session validity
After you link a desktop session, the QR-based mobile login remains valid for 7 days unless the session is disconnected or refreshed.
Troubleshooting
The QR code does not appear
Make sure you are already connected with your wallet on desktop and press the button long enough to trigger the QR code.
I can scan the QR code but cannot finish login
Check that you entered the matching password correctly on mobile and that the desktop session is still active.
I am asked to go back to desktop
This is expected for sensitive actions that require wallet signature. Use desktop to complete the action, then continue trading on mobile.
Summary
Link Mobile Device is best understood as:
Verify once on PC
Continue trading on mobile
Return to PC for sensitive wallet-signature actions
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