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Title: Having trouble getting electrum to open cold coin skeleton wallet Post by: mudaggressive on December 03, 2020, 10:53:28 PM Hi All,
I'm setting up my new cold coin wallet (awesome product) and have had no problem up to the step of syncing it with off line Electrum wallet. 1) I created on cold card an Electrum wallet on the micro sd card, following instructions I think. 2) I put the sd wallet in the pc, and can see the wallet etc. 3) I install Electrum from verified install file, and open the testnet version of Electrum. 4) I attempt to open the wallet file from cold card and get an error message "Cannot load wallet invalid extended key format " etc..... as shown here: https://www.screencast.com/t/oUfyOUyvaZ Any ideas about what I am doing wrong or how to get past this stopper? Many thanks in advance. MA Title: Re: Having trouble getting electrum to open cold coin skeleton wallet Post by: NotATether on December 03, 2020, 11:55:51 PM Launch Electurm normally, not in testnet, and open the wallet file again. The cold coin wallet is using a p2wpkh mainnet master public key (i.e. version 0x04b24746), but this is not recognized on testnet.
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