diff --git a/README.md b/README.md
index 00d55fb..beb0124 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,13 @@
 # NixOS on Pinecube (Early work in progress)
 
 Build an SD card image with `./build.sh`.
-Prebuilt image [here](https://drive.google.com/file/d/1-nd6KbrBqaHCP2QHJ1iuGF-WUadhKajY/view?usp=sharing). (updated 2020-10-20)
+Prebuilt image [here](https://drive.google.com/file/d/1n8JHk7dfFQIfJX9KqxsTB1Dp_X8N-nVc/view?usp=sharing). (updated 2020-10-27)
 Decompress and flash with:
 ```shell
-$ cat ./result/sd-image/nixos-sd-image-21.03pre-git-armv7l-linux.img.zst | zstd -d | dd of=/dev/<sdcard> bs=1024
+$ cat ./result/sd-image/nixos-sd-image-21.03pre-git-armv7l-linux.img.zst | zstd -d | dd of=/dev/sdX bs=1024
 ```
 
-Should be accessible over UART2 pins (see pinout on wiki) or SSH.
+It should be accessible over UART2 pins (see pinout on wiki) or SSH.
 - Username: `nixos`
 - Password: `nixos`