My Galaxy S4 mini suddenly stopped working for no apparent reason. It won't turn on via any recommended action or new battery, recovery software from the laptop can't seem to connect as a result. I had bitcoin wallet installed on it with bitcoins inside. How do I access/recover the wallet - or at least coins? Thank you!
It's not possible to answer this question without knowing what's wrong with the phone. Your best bet might visiting a repair shop. Tell them you need the data on that phone.
Answer: If it is truly bricked, then you need to utilize your backup of that wallet.
If you have lost your only copy of your wallet, then my condolences. The loss of your BTC can be considered a cost of doing business, though - the price of learning from this mistake and instituting better data security practices in the future.
On having a backup: Two copies of your wallet introduces more opportunity for unauthorized access, but more data security in terms of protection.
It would be best if your backup wallet is stored in a physical safe.
Also, to reduce your risk, it might be wise to have a master wallet (I use Coinbase) and a second traveling wallet.
Just like you store money in the bank but only carry a small fraction of the total around in your pocket.
Myself, I stick with just Coinbase and their app. These devices are throw-aways. But the data must be protected.