i can't switch to testnet

[procolost]

hello i use 4.0.3 i want to switch to testnet
i open setting and enter dev menu
but i not found “Switch to Testnet”
how to switch to testnet?

[polstianka]

Hi, testnet support is in wallet_custom branch.
Clone repository, run app, open "Add wallet" menu.

This is an experimental Tonkeeper version and it does not have full functionality as major version

[hientx-seta]

i still have the problem when click on Continue after put all the words of key. I didn't saw the code who handle this button click.