Stuck on an issue?

You can open a channel on Eclair Mobile even after the sunset notice. It still works.

In your case, the channel is failing because its capacity is too low for the peer. You are trying to open a channel with a 309k sat capacity but that peer requires at least 400k sat. The error message is indeed not very readable.

To connect to another node, you can scan any node address QR code from that website: https://1ml.com/

To migrate to Phoenix, as mentioned by @t-bast you just need to make a transaction from Eclair Mobile to Phoenix, using the “Show Bitcoin address” button in Phoenix’s Receive screen.

But on Eclaire? How can send funds from onchain part of the wallet?

You do it just as you would do with any LN payment:

1. In Phoenix, go to Receive > “Show a Bitcoin address”, and copy the address that has been generated
2. In Eclair Mobile, click on the blue arrow button, in the bottom-right corner of the app, then “Paste a payment request”
3. Enter the amount you want and click Pay. Note that the “Empty wallet” checkbox makes Eclair Mobile compute the exact amount to send so that the balance of Eclair Mobile ends up at 0 (no dust left on the wallet).

If you still have open LN channels on Eclair Mobile, you will have to close them first, otherwise those funds will remain.