29-01-2021 09:16 AM - last edited 29-01-2021 04:21 PM
As we've received a lot of questions about the SIM cards on the S21, S21+ and S21 Ultra, we thought it would be helpful to publish some information on how to install them, as there have been some changes to our design in comparison to other devices.
Information about the SIM specification
How do I install the SIM card in the S21 series?
With an all new design, follow the below steps to install your physical SIM cards.
SIM slot 1
If installing a second physical nano-SIM card, flip over the SIM tray repeating the installation steps, installing it with the gold contacts facing out of the sim card tray.
SIM slot 2
Please note, you can use up to 2 SIMs on the S21, S21+ and S21 Ultra including an eSIM. This means you can either use 2x physical nano-SIMs or 1 physical SIM and an eSIM.
Hope this helps!
21-10-2021 05:07 PM in
hello out there, does anyone know if the samsung s21 ultra will work with a cuban sim card from nauta?
i know it may or may not work through an american cell provider, just wondering if anyone has used a 'cubacel' card in this handset...
02-09-2023 02:26 PM in
I just tried this on my new (refurbished) Samsung Galaxy S21 Ultra 5g, settings indicate the phone takes 2 sims + e-sim, sim card tray is 2 sided, marked sim 1 and sim 2.
Placed 2 sims in the tray, and inserted, settings do not show sim 2.
When I check sim tray, sim 2 has disappeared inside my new (refurbished) phone, which now rattles. Sim is not visible inside slot, and I now have to do a sim swap to retain my sim 2 account, and return phone under warranty for replacement.
Can anyone confirm that this phone is designed to actually USE 2 physical sims??