diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d51852d
--- /dev/null
+++ b/README.md
@@ -0,0 +1,13 @@
+# Macrosilicon/UltraSemi MS2130 firmware patcher
+## Disables sharpening, scaling, etc.
+
+This tool patches the [firmware with 4K support](https://github.com/damnnfo/ms2130-firmware/blob/main/4k%20not%20tested/MS2130%204K2.bin) and applies the register changes also found in [hsdaoh](https://github.com/steve-m/hsdaoh).
+
+You can use [ms-tools](https://github.com/BertoldVdb/ms-tools) to flash the firmware.
+Make sure to backup your firmware:
+
+    ./cli --log-level=7 read FLASH 0 --filename=backup.bin
+
+and then flash the new firmware with:
+
+    ./cli --log-level=7 --no-patch write-file FLASH 0 ms2130_patched_v1.bin