S21 FE Stuck in boot loop

My girlfriend's S21 FE is stuck in a boot loop and I need some guidance on repairing it.

It shows the Samsung logo, then the Galaxy logo, and gets stuck for a few seconds, then it restarts. If it helps, here's a video https://imgur.com/a/8zsueyT

She said that this happened during some update, there was a notification that something was updating when she woke up, but the Wi-Fi was turned off and she could not turn it on, it wasn't working. So she tried to restart the phone and this problem ocurred.

I already tried:

• Enter in recovery mode: It doesn't enter this mode, maybe it needs to fully initialize to enter it. I really can't get the phone into this mode.
• Flash a new firmware with Odin: I can get it into download mode, I've found the right firmware and installed it using Odin. It didn't change anything, the phone is still stuck on the same boot loop.
• Let the battery drain out
• Put it in the freezer: Yeah, I saw on a Reddit thread that some users could get it to work after a few minutes in the freezer. I've tried that and, again, nothing changed.