How to log in to IBKR Mobile when the IB Key is enabled on another phone

Background: 
This article is intended for clients who have activated the IBKR Mobile authentication on their smartphone and possess as well an additional mobile device, on which they desire to trade.
Clients with this setup will be able to log in to the IBKR Mobile trading platform on their secondary device, using their smartphone to complete the Two-Factor Authentication step.

 

For the purposes of this article, we will use the following naming convention:

Authentication device: this is the smartphone on which you activated the IBKR Mobile Authentication (IB Key)

Trading device: this is where you want to use IBKR Mobile app for trading.

 

Procedure

Please click on one of the link below according to your phone operating system:

 

Apple iOS

1. On your Trading device, launch the IBKR Mobile app. Enter your your credentials in the login screen and tap Log In
 Figure 1
 
2. Tap Two-Factor Authentication (Figure 2).  A Challenge code will be displayed (Figure 3)
  Figure 2                                                            Figure 3
    
 
3. On the Authentication device, launch the IBKR Mobile app
 Figure 4
 
4a. If you are not automatically logged in, tap Services (Figure 5) on the top left, then tap Authenticate (Figure 6).
 Figure 5                                                          Figure 6
 
 
4b. If you are already logged in, tap on the More button on the bottom right. Then, scroll down and tap on Authenticate
  Figure 7

5. Enter the Challenge code you obtained at point 2. Then tap Generate Response (Figure 8). Once you have provided your security element (Figure 9), you will receive a Response String (Figure 10).
  Figure 8                                                     Figure 9                                                  Figure 10
   

6. On your Trading device, enter the Response String into the "Enter response code" field and tap Send to finalize the authentication process.
 Figure 11

 

 

Android

1. On your Trading device, launch the IBKR Mobile app. Enter your your credentials in the login screen and tap Log In
  Figure 1
 
2. Tap on the option Two-Factor Authentication (Figure 2).  You will see a Challenge code (Figure 3)
 Figure 2                                                          Figure 3
  
 
3. On the Authentication device, launch the IBKR Mobile app
 Figure 4
 
4a. If you are not automatically logged in, tap Services (Figure 5) and then tap Authenticate (Figure 6).
 Figure 5                                                            Figure 6
   
 
4b. If you are already logged in, tap the Menu button (Figure 7), scroll down and tap Authenticate (Figure 8).
  Figure 7                                                          Figure 8
  
 
5. Enter your IBKR Mobile PIN and the Challenge code you obtained at point 2. Then tap Generate Response (Figure 9). A Response String will be displayed (Figure 10)
  Figure 9                                                         Figure 10
  
 
6. On your Trading device, enter the Response String in to the "Enter response code" field and then tap Log In to finalize the authentication process.
 Figure 11
 


References
  • See KB2260 for general instructions on how to use IBKR Mobile Authentication
  • See KB3073 for instructions on how to migrate the IB Key / IBKR Mobile authentication to a new smartphone
  • See KB2748 for instructions on how to perform the IB Key / IBKR Mobile authentication recovery