Root OnePlus 3T "No Sim card"

[Adam Ahern]

So I've just rooted my phone, followed all the steps perfectly, root was fine. When the phone went back on its saying "No SIM Card - 3". This means it isn't registering my Sim card but it knows what network I'm on. I can receive phone calls and texts but cannot call, send texts or use mobile data. When I go into about phone it shows my IMEI number. Does anybody know what is wrong?

 

[dviraj00]

So I've just rooted my phone, followed all the steps perfectly, root was fine. When the phone went back on its saying "No SIM Card - 3". This means it isn't registering my Sim card but it knows what network I'm on. I can receive phone calls and texts but cannot call, send texts or use mobile data. When I go into about phone it shows my IMEI number. Does anybody know what is wrong?

you might want to update your firmware to solve this. Try this open beta 4 and then reroot again. https://www.obeygeek.com/download-oxygen-os-open-beta-4-for-oneplus-3t-7-1-1-nougat/
it helped me in this similar case.
it'll work