I have a bit of bitcoin lingering in an old bitcoin wallet (circa 2011). I just restored it from a backup but I can't seem to load it into bitcoin-qt.

If I launch the app, shut it down, the copy in my old wallet.dat file and re-open, it shows a zero balance.

If, instead, I shut it down, copy over the entirety of my old .bitcoin folder, and then re-open, I get an immediate segfault. How screwed am I?

  • 2
    I would copy only the wallet.dat; everything else should be unnecessary. Has your new installation finished syncing with the network? Have you tried -rescan? Also, was your old wallet.dat encrypted? Jan 12, 2016 at 4:05

2 Answers 2


You may find the following post relevant:

Wallet.dat (<0.4.0) format: retrieving Bitcoin, possible security concerns

This post details some of the steps you may need to perform to import the wallet into a current client, the biggest time consumer will be waiting for the full blockchain to sync with the current network.


This guy used some tricks way above my basic pay grade but, maybe something will help you

Good Luck ,


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