From a0d67e6f9980ae1ebacc18a2ea8bd661f753621d Mon Sep 17 00:00:00 2001
From: 1okko <15377594951@189.cn>
Date: Thu, 22 Oct 2026 20:46:21 +0800
Subject: [PATCH] panda: release BOOT0 after reset before SPI flashing

---
 flash_bootstub.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/flash_bootstub.sh b/flash_bootstub.sh
index 5d557a801..c5829d6c8 100755
--- a/flash_bootstub.sh
+++ b/flash_bootstub.sh
@@ -22,6 +22,8 @@ echo 1 > /sys/class/gpio/gpio124/value
 echo 1 > /sys/class/gpio/gpio134/value
 sleep 0.2
 echo 0 > /sys/class/gpio/gpio124/value
+sleep 0.1
+echo 0 > /sys/class/gpio/gpio134/value
 sleep 1
 
 # 2) 单 handle 分块刷写 bootstub (带重试 + 读回校验)
@@ -43,7 +45,8 @@ def w(pin, val):
 
 for attempt in range(30):
     # reset with BOOT0 held high (each retry)
-    w(124, 1); w(134, 1); time.sleep(0.2); w(124, 0); time.sleep(1)
+    w(124, 1); w(134, 1); time.sleep(0.2)
+    w(124, 0); time.sleep(0.1); w(134, 0); time.sleep(1)
     try:
         h = STBootloaderSPIHandle()
     except Exception: