readme: add info about index and data port

sarvasana · Jan 9, 2021 · 7572faa · 7572faa
1 parent 7106f29
commit 7572faa
Showing 1 changed file with 24 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -8,6 +8,30 @@ provided by glibc.
 
 This tool will unlock the advanced menu in your Lenovo Yoga Slim 7 14ARE05.
 
+To unlock the advanced menu it's necessary to change the data field on port `0x73` at index `0xf7`.
+Port `0x72` is the index port that defines which value at `0x73` will be accessed.
+
+                                \/
+         | 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
+      ---+------------------------------------------------
+      00 | 21 bc 21 63 00 00 5a a5 18 70 f6 7c 00 f5 19 00
+      10 | 80 00 a6 20 00 44 00 02 00 00 94 80 89 00 e0 49
+      20 | 00 0d 04 30 21 00 24 00 00 10 00 04 00 00 04 ec
+      30 | 55 55 55 55 ff 07 00 20 29 00 8c 00 0a a8 00 08
+      40 | f4 00 00 00 01 20 01 01 08 00 00 00 10 11 00 00
+      50 | 00 00 80 00 00 00 41 00 00 00 00 00 ff 07 00 00
+      60 | 00 00 00 00 00 10 00 20 02 00 00 00 00 00 00 00
+      70 | 00 00 00 00 08 01 08 00 00 00 00 00 86 22 00 00
+      80 | c0 0c 00 80 09 52 00 00 00 00 00 00 00 00 00 00
+      90 | 00 00 00 00 08 00 00 80 00 00 04 40 00 80 00 00
+      a0 | 00 00 00 00 00 00 00 00 20 40 00 00 20 00 01 00
+      b0 | 00 00 08 20 00 00 40 00 00 00 00 00 00 42 00 00
+      c0 | 02 02 00 00 00 40 00 00 00 00 80 80 00 00 00 40
+      d0 | 00 40 14 00 02 00 82 00 00 00 00 80 81 08 00 80
+      e0 | 00 02 00 01 00 00 00 00 00 00 00 00 00 00 01 00
+    > f0 | 29 a4 a7 a7 00 00 00 77 e0 00 24 04 00 10 10 00
+                                ^^
+
 ## Disclaimer
 
 This tool may eat your cat, burn your house or do anything else beside the expected task.