Hello guys,
I have a old Ninki Wallet bitcoin wallet which I used back in septeber 2015 on my iPhone and left it there with the phone. I have a little bit over 4 Bitcoins on that account but sadly yesterday when I checked the old accounts it seems that the service shut down.
I tried to use the ninki-wallet tool from their github with all the proper data (offline key, online key, private key) but without success, it just seems to forever get stuck at Step 4 with the message "Checking for xxxxx address". Also I tried to analyze the background data the recovery application uses and it seems that when it runs these messages appear:
Failed to load https://api.chain.com/v1/bitcoin/addresses/3GXJPPyKrtd7EZFjj6PsZfD13Rq4VCRrzo: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access. The response had HTTP status code 405.
For each and every single address it says it's checking this is happening. Therefore, anyone who thinks I can solve this or can recover it for me (trusted members, of course), I am willing to give 10% of the bitcoin amount on the wallet for this.