diff --git a/The-Ultimate-Rooting-Guide.md b/The-Ultimate-Rooting-Guide.md
index b75b46b..3debe7c 100644
--- a/The-Ultimate-Rooting-Guide.md
+++ b/The-Ultimate-Rooting-Guide.md
@@ -85,9 +85,11 @@ Your DPT will say `preparing for the update...` and then the DPT will restart an
 
 After update, it will say `update failure`, but it is actually flashed.
 
-And you can run `adb devices` on your computer to see if your DPT appears (it may take a while to boot ADBD after DPT boots up, if you have waited for >2min, try to unplug and plug back in the cable, and do `adb kill-server && adb devices` several times, it eventually will come up!).
+And you can run `adb devices` on your computer to see if your DPT appears (it may take a while to boot ADBD after DPT boots up, if you have waited for >2min, try to unplug and plug back in the cable, and do `adb kill-server && adb devices` several times, it eventually will come up!). 
 
-Note: we are still unclear about [the issue DPA cannot be connected](https://github.com/HappyZ/dpt-tools/issues/58).
+Note: If you want to use prior ADBD (not the insecured ADBD from chainfire, you can find more details [here](https://github.com/HappyZ/dpt-tools/issues/87#issuecomment-489276963))
+
+~Note: we are still unclear about [the issue DPA cannot be connected](https://github.com/HappyZ/dpt-tools/issues/58).~
 
 ### 0x4 Obtain Android Root Access (Optional, Subject to Change)