Thanks @Abdussamad
When I try to restore the old 2fa wallet, there is no warning or error message, after do that, no send/receive history and no banlace found( in fact there are several BTCs in it)
there are 12 words in the seed of this old wallet, and I am sure seed is right for I just copy and paste them
I forget which version I used to create this wallet, but it is in near Jan 2017, 9 months ago I created it.
First of all you don't need to photograph your computer screen. You can take a picture of it using the print screen button on your keyboard. That'll copy a screenshot to the clipboard and you can then paste that into an image editor, save it and upload it.
So what happens when you try to restore the old 2fa wallet? Do you get an error message? How many words are there in the seed of this old wallet? What version of electrum did you use to create this wallet?