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 I need some more info about CPFP in practice... Does any wallet support it? Any experience in it.  

Wallet A send to B... What do I have to do on Wallet B to do CPFP? 

#asknostr

https://bitcoinops.org/en/topics/cpfp/ 
 Wallet B needs coin selection and being able to spend unconfirmed transactions. Use Wallet B to spend the transaction coming from Wallet A. 
 What is Coin Selection? I think my wallet don't have, I don't know what it is. 
 Coin control lets you choose the inputs of your transaction. Electrum and Bluewallet have it. For wallets without it, the wallet could also CPFP sweeping all funds.
Is RBF not an option for your case?
 
 No, my wallet don't have it I guess. I can't find it on Tangem nor on Safepal. Electrum I heard about it but never looked into it. Blue Wallet I had it installed before for 1 day.   
 I have never heard of Tangem or Safepal. If you can get the seed of those wallets you can import in into Electrum or Sparrow to do the CPFP. Im not sure if Blue Wallet does CPFP. 
 I didn't know them either. https://walletscrutiny.com/ is the best source to quickly check what they are up to. 
 Those are Cold Wallets  
 U dont have to know anything over cointrol in first just playin around with an walket like sparrow which is supporting both. 


https://buybitcoinworldwide.com/rbf/