How to E-file 1040-X if e-filed Non-Filers Return Electronically

[Experttax8]

How can I e-filed an amended return? If I have someone who e-filed their return through IRS website as a non-filers accidentally? They thought that they were entering their bank information to receive the stimulus check and e-filed a non-filers return. 

[Just-Lisa-Now-]

You can't in this situation.    

[BobKamman]

Here is the IRS FAQ on filing a return after using the nonfiler tool:

https://www.irs.gov/newsroom/amended-eip-return