File: Armbian_20.10_Arm-64_buster_current_5.9.0.img
Instructions: https://blog.toanquan.net/cai-home-assistant-len-tx3-mini/ (in Vietnamese but could be translated to English)
I bought the device from a Chinese store, advertised as 4GB RAM and 32GB storage. There are options for 1GB and 2GB of RAM too. When I boot into the box and check the storage. It also said 4GB. I've just opened the box and took a photo of the inside:
https://photos.app.goo.gl/Dmdkorbkr91yaniq6
https://photos.app.goo.gl/Lbcdmpuim3bLrDnC9
https://photos.app.goo.gl/8JFcy66KVCiigYATA
Should I install another ROM? Thanks