You can download the desktop wallet at wallet.bitcoin.com or at github.com/bitcoin-portal/bitcoin-wallet-releases/releases/tag/5.13-RC4

Instructions for importing multisig wallets:

1. Start at 'Wallets' screen
2. Tap on the plus "+" icon to the right of Bitcoin Cash (BCH) or Bitcoin Core (BTC)
3. Import Wallet
4. Enter 12 word recovery phrase (or use the File/Text tab if you have an export file)
5. Tap on Show advanced options and scroll down to Wallet Service URL
6. For BCH multisig wallets the required URL is https://bwscash.bitcoin.com/bws/api
 If it's set to https://bch.api.wallet.bitcoin.com/bws/api or anything else please paste in the required URL
7. For BTC wallets the required URL is https://bws.bitcoin.com/bws/api
8. Tap Import

Your multisig wallet should import.

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