I got it by signing it.
This makes no sense to me. I have no idea what you mean. I still do not understand where this "1" address came from. Only Ledger "legacy" wallets (or Ledger BitcoinCash wallets) produce "1" addresses. What exactly did you sign? 
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I was transferring my BTC to the signed address to claim my GBytes but never got it in my wallet. I can see it in blockchain that it has received to the signed address. I didn't use bitcoin cash as I marked remember this on my ledger wallet so it always takes me to SegWit....
Aha... now I think I'm beginning to understand... So, if I understand this correctly... you were attempting to participate in the Byteball airdrop but had discovered that the Transition Bot did not play nicely with PS2H addresses (ie. "3" addresses) as you needed to be able to "sign" a message with the address you wanted to link to Byteball, thus proving ownership of the Bitcoin address.So, you got a "1" address (from your Ledger?
), then sent your BTC to it... then signed a message from this "1" address... and now you can't find your BTC?If this is indeed the case, your BTC is in your Ledger Nano S "legacy" Bitcoin wallet... You can access this one of two ways:
Using "Ledger Wallet Bitcoin" Chrome App:
Check which "blockchain" value it displays, I'm guessing yours says "Bitcoin SegWit":
Click settings:
Then select "Blockchains":
Then select "Bitcoin":
Then select "Legacy":
It should now display that it is using "Bitcoin"... and your missing Bitcoin should be shown:
Using Electrum:
Create a new wallet using: "File -> New\Restore -> (call it "LedgerLegacy" or something like that) -> Standard Wallet -> Use a hardware device", connect your Ledger Nano S, unlock it with PIN and select the "Bitcoin" apps when prompted.
LEAVE THE DERIVATION PATH AS THE DEFAULT: m/44'/0'/0'
It should display your "Legacy" wallet with "1" addresses and your missing Bitcoin should be shown.