diff --git a/boards/wr3.json b/boards/wr3.json
index ec9bdbb..d2dcfe3 100644
--- a/boards/wr3.json
+++ b/boards/wr3.json
@@ -19,7 +19,7 @@
 		],
 		"openocd_config": "amebaz.cfg",
 		"gdb_init": [
-			"mem 0x8000000 0x8010000 ro"
+			"mem 0x8000000 0x8200000 ro"
 		]
 	},
 	"flash": {
diff --git a/docs/platform/realtek/debugging.md b/docs/platform/realtek/debugging.md
index db43ff7..4ff531a 100644
--- a/docs/platform/realtek/debugging.md
+++ b/docs/platform/realtek/debugging.md
@@ -71,7 +71,6 @@ To disable auto reset before and after debugging:
 ```ini
 [env:my_board]
 debug_init_cmds =
-  mem 0x8000000 0x8010000 ro
   target extended-remote $DEBUG_PORT ; remove this line if you're debugging locally
   $INIT_BREAK
 ;   monitor reset halt
@@ -82,7 +81,7 @@ debug_init_cmds =
 
 ## Technical details
 
-GDB is first configured with `mem 0x8000000 0x8010000 ro` in order to mark flash section as read-only. This makes GDB use hardware breakpoints, as software BPs don't work on these boards.
+GDB is first configured with `mem 0x8000000 0x8200000 ro` in order to mark flash memory as read-only. This makes GDB use hardware breakpoints, as software BPs don't work on these boards.
 
 ## More powerful playground
 
diff --git a/platform.py b/platform.py
index 1c4289b..ba80554 100644
--- a/platform.py
+++ b/platform.py
@@ -112,6 +112,7 @@ class LibretuyaPlatform(PlatformBase):
         if "custom" not in debug["tools"]:
             debug["tools"]["custom"] = {}
         init = debug.get("gdb_init", [])
+        init += ["set mem inaccessible-by-default off"]
 
         for link in protocols:
             if link == "openocd":