diff --git a/1u/diy mode/README.md b/1u/diy mode/README.md
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+use ota to flash this firmware, after it finish, the ota password will change to "all-things-in-their-being-are-good-for-something", which match the yaml source.  
+so you can make you own firmware base on our yaml.  
+
+good luck with that.
+
+we should make more doc soon. 
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