Can't sign transaction from watch-only wallet

[Jikoun]

Hello,
Could you please help me with small problem?

I imported coldcard (native segwit) to sparrow, then I imported xpub (legacy by mistake) to bluewallet watch-only and there I generated receive address and send some sats there, but then I realized I should have imported zpub (bc addresses). And now I cannot sign the transaction in bluewallet so I can't send it to bc address. Where am I going wrong, please?

Thanks.

[captJiri]

I have the same problem with Jade HW. Watch only stopped working with PSBT (air tx). Also blue wallet can't connect via tor to my node (umbrel) electrum server anymore, so using default ES. But f.ex. green wallet still connects to the same ES link. Problems started probably with some update some months ago.

[Overtorment]

@Jikoun BW cant sign anything if it imported a watch-only (via xpub).

you should create transaction in BW, sign it with coldcard, and then broadcast.

let me know which steps are failing for you, and post some screenshots pls

[Jikoun]

@Overtorment Transaction created, coldcard wasn’t able to sign it. Passphrase correct and tested, wallet correct.

[Overtorment]

not a correct uploaded screenshot

[Overtorment]

what was the error on coldcard?

[Overtorment]

my guess, is that fingerprint was not imported with the xpub (coldcard checks it when signing the transaction).
check if youve got the correct one in wallet->details

[Jikoun]

Xpub in sparrow is the same as in bw. Coldcard shows as attached.

[Jikoun]

I do not know if it is attached. It writes Path m 44’0’0’0 led to wrong pubkey for input #0

[Overtorment]

1. what fingetprint your watch-only wallet displays?
2. go to https://jlopp.github.io/xpub-converter/ and convert your xpub to zpub. is it the same what coldcard gives you? (if thats the case, you used wrong path, you will just need to reimport watch-only but with m/84/... path for coldcard to "see" it)

[Jikoun]

1. Both have the same in sparrow. In bw I cannot view fingerprint.
2. Yes, it is the same. I sent money to xpub, that I cannot sign. Zpub from sparrow is normally working. I do not know how to make it work.

Now it showed me the balance in coldcard, when I tried different setup and made a transaction, but coldcard told me "Failure My XFP not involved"

[Overtorment]

you can view FP in bluewallet if you go to wallet details screen. make sure its not 00000000

so looks like to spend your coins you need to import your zpub (as segwit native wallet), but specify the custom path for legacy wallet (m/44 etc).

you can use any wallet for this, not necessarily bluewallet.

[mikeyb233]

I have tried exporting the xpub with both coldcard (doesn't provide fingerprint) and jade (does provide fingerprint) and both give the error "Should not be used in watch-only HD wallets" even after enabling the "Use with Hardware Wallet" toggle. This occurs in the latest Android version 6.6.5 as well as the previous.