diff --git a/AGENTS.md b/AGENTS.md
index 5ebbbb7..0a96765 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -641,6 +641,22 @@ the multiboot menu reads firmware slots rather than apps. **The answer was writt
 the flasher's own translation file**, not in the firmware source I had been reading -- so
 when a feature's entry point is missing, the host tool that installs it is the document.
 
+**"Init ... DO NOT POWER OFF" that never ends is a pending multiboot state marker.** Measured
+on a real image: `0x100000` held `FMP3` next to a committed slot 0, so the factory bootloader
+reflashed the internal flash from that slot on every power-on and reset again -- a restore loop.
+The firmware's own banner reappeared once a cycle in the serial log (7 -> 8 in 25 s) while the
+screen never changed. Clearing the two marker sectors (`0x100000..0x101FFF`, which stops just
+before the app region at `0x102000`, so installed apps are untouched) ended it: the banner count
+stopped rising and the radio booted once and stayed.
+
+That loop explained a second surprise: edits made through the page vanished. The emulator writes
+its in-memory image back when it exits, and the looping guest's copy was older than the file, so
+powering it off overwrote what had just been installed. With the loop gone the same installs
+survive a power cycle -- verified by installing, powering off, seeing them still listed, powering
+on, seeing them still listed, and having the radio answer `0x0730` with all three. **A stale
+write-back is worth suspecting whenever an edit "does not stick"**, and a guest that is quietly
+rebooting is exactly how one happens.
+
 ## The keypad: two real bugs, both fixed
 
 The old note here said "keys reach the firmware but the UI does not react" and
diff --git a/AGENTS.zh-CN.md b/AGENTS.zh-CN.md
index e2d38fd..80cce8b 100644
--- a/AGENTS.zh-CN.md
+++ b/AGENTS.zh-CN.md
@@ -520,6 +520,17 @@ UVStudio 的 `locales/en.js` 原文是 "launch them from the F + 7 menu" ——
 app 区被读过 —— 而多系统菜单读的是**固件槽**，不是应用。**答案写在刷机工具自己的翻译文件里**，
 不在我一直在读的固件源码里 —— 所以当一个功能的入口找不到时，**安装它的那个主机工具就是文档**。
 
+**永远停不下来的 "Init ... DO NOT POWER OFF" 是一个待执行的多系统状态标记。** 在真实镜像上量到：
+`0x100000` 里是 `FMP3`，而槽 0 已提交 —— 于是出厂引导**每次开机都从槽 0 重刷内部 flash 再重启**，
+成了恢复循环。串口日志里固件横幅**每个周期出现一次**（25 秒里 7 → 8），而屏幕一直不动。清掉那两个
+标记扇区（`0x100000..0x101FFF`，正好停在应用区 `0x102000` 之前，所以**已安装的应用不受影响**）
+之后循环结束：横幅数不再增长，电台启动一次就稳定了。
+
+这个循环还解释了第二件怪事：**通过页面装的东西会消失**。模拟器退出时会把内存里的镜像写回文件，
+而循环中的客人手里那份比文件更旧，于是"断电"这一下就把刚装进去的覆盖掉了。循环消失后，同一批安装
+**扛得住断电重上电** —— 实测：装上、断电仍在、上电仍在，并且电台用 `0x0730` 确认了三个都在。
+**每当"改了不生效"，都值得怀疑一次过期的写回**，而一个在悄悄重启的客人正是它发生的典型方式。
+
 ## 键盘：两个真 bug，都已修复
 
 这里原来的笔记写的是"按键到达了固件但界面不反应"，并且归咎于机器模型。结果发现有**两个