NOTE: With version 1.0.18 of Core mobile, there is a bug with the Keystone wallet that will causes transactions to fail when attempting to sign transactions for AVAX on the X/P-chain. The developers at Keystone are currently working on a fix. Below is the current work around.
Connect Core mobile to Core web.
From Portfolio menu, press Send.
Select Avalanche (P-Chain) or Avalanche (X-chain) in the dropdown menu of your tokens.
Click your account and press the UTXO Selector button.
Choose the desired UTXO(s) and click Select.
Proceed with the transaction steps as necessary.
For any additional questions, please view our other knowledge base articles or contact a Product Support team member via the chat button. Examples are for illustrative purposes only.