Hi nc50lc,
All letters are uppercase.
I manually copy the invoice using the "Copy" button on Electrum for Android.

On Electrum for Android I don't see any way to untick "Add on-chain fallback to lightning requests", only have the invoice (either in QR format, or in plain text), and the buttons "Copy" and "Share". You are referring to Electrum on Android?

Tryed to send BTC over Lightning from Binance to Electrum.
- Lightning channel have income capacity on my electrum wallet
- Created the invoice with 1 day expiration
- Binance Android App reports invalid invoice number.
- Tryed again several times creating different invoices, same result.
- Contacted Binance support, after reviewing the case they tell me the invoice has some error

Some one can help me?
Thanks in advance...

P.S.: Apologies for any error regarding my english