I waited 6 months for bio after receipt number

It takes forever now. I waited for 4 months, before USCIS sent a notice, which allows to use the old green card along with this paper and extends the validity of the expired green card for 1 year.

took me 5 months ... definitely longer with covid ....

not too long, they sent me a letter saying they will put my last biometrics and I don’t need to appear for more. it took them 2 weeks after receiving my application to send me that letter

old biometrics are only available if they have yours on file 15 months or less