Thank you pooya87 and kolloh.

I'll stop worrying about having the cold wallet show my balance and just use it for signing. Thanks for the QR codes tip, I'll look into that.

Cheers

Greetings all!

This is definitely a beginner question so thanks for your patience and help. I have browsed the forums and used google extensively but can't seen to find an answer to the above question.

I have a cold and a watching wallet setup using Electrum. I know how to send BTC via watching wallet and by signing using the cold wallet (thanks to excellent documentation on Electrum site) but I don't know how to sync cold wallet with watching wallet so both show the same balance.

A little more detail about my scenario:
I set up cold/watching wallets using Electrum. They both show 0 BTC to begin with. I then sent some coins, say 0.2 BTC, from an online wallet, say LBC, to Electrum watching wallet. Now the watching wallet shows 0.2 BTC but the cold wallet still shows 0. What do I need to do so that the cold wallet also shows 0.2 BTC? My cold wallet by the way is not connected to the network.

(Just as an aside, I understand that I can always spend the 0.2 BTC even if the cold wallet doesn't show it (by following the process in the Electrum guide and signing it via cold wallet) but I prefer to have my cold wallet show the full balance of BTC I have transferred to the receive addresses owned by this set up. The watching wallet will always get the right balance owned by its receive addresses as its online/connected to the servers. So its really the cold wallet that I want to sync so it shows the same balance.)

Thanks!