diff --git a/RKBOOT/RK3506BMINIALL.ini b/RKBOOT/RK3506BMINIALL.ini
index 32ce3a79..5fcd0dcf 100644
--- a/RKBOOT/RK3506BMINIALL.ini
+++ b/RKBOOT/RK3506BMINIALL.ini
@@ -5,7 +5,7 @@ MAJOR=1
 MINOR=1
 [CODE471_OPTION]
 NUM=1
-Path1=bin/rk35/rk3506b_ddr_589MHz_v1.01.bin
+Path1=bin/rk35/rk3506b_ddr_750MHz_v1.02.bin
 [CODE472_OPTION]
 NUM=1
 Path1=bin/rk35/rk3506_usbplug_v1.00.bin
@@ -13,14 +13,14 @@ Path1=bin/rk35/rk3506_usbplug_v1.00.bin
 NUM=2
 LOADER1=FlashData
 LOADER2=FlashBoot
-FlashData=bin/rk35/rk3506b_ddr_589MHz_v1.01.bin
+FlashData=bin/rk35/rk3506b_ddr_750MHz_v1.02.bin
 FlashBoot=bin/rk35/rk3506_spl_v1.10.bin
 [LOADER2_PARAM]
 LOAD_ADDR=0x3f00000
 FLAG=0x0
 [OUTPUT]
-PATH=rk3506_spl_loader_v1.01.110.bin
-IDB_PATH=rk3506_idblock_v1.01.110.img
+PATH=rk3506_spl_loader_v1.02.110.bin
+IDB_PATH=rk3506_idblock_v1.02.110.img
 [SYSTEM]
 NEWIDB=true
 [FLAG]
diff --git a/RKBOOT/RK3506MINIALL.ini b/RKBOOT/RK3506MINIALL.ini
index 85268f14..4cf22193 100644
--- a/RKBOOT/RK3506MINIALL.ini
+++ b/RKBOOT/RK3506MINIALL.ini
@@ -5,7 +5,7 @@ MAJOR=1
 MINOR=1
 [CODE471_OPTION]
 NUM=1
-Path1=bin/rk35/rk3506_ddr_800MHz_v1.01.bin
+Path1=bin/rk35/rk3506_ddr_750MHz_v1.02.bin
 [CODE472_OPTION]
 NUM=1
 Path1=bin/rk35/rk3506_usbplug_v1.00.bin
@@ -13,14 +13,14 @@ Path1=bin/rk35/rk3506_usbplug_v1.00.bin
 NUM=2
 LOADER1=FlashData
 LOADER2=FlashBoot
-FlashData=bin/rk35/rk3506_ddr_800MHz_v1.01.bin
+FlashData=bin/rk35/rk3506_ddr_750MHz_v1.02.bin
 FlashBoot=bin/rk35/rk3506_spl_v1.10.bin
 [LOADER2_PARAM]
 LOAD_ADDR=0x3f00000
 FLAG=0x0
 [OUTPUT]
-PATH=rk3506_spl_loader_v1.01.110.bin
-IDB_PATH=rk3506_idblock_v1.01.110.img
+PATH=rk3506_spl_loader_v1.02.110.bin
+IDB_PATH=rk3506_idblock_v1.02.110.img
 [SYSTEM]
 NEWIDB=true
 [FLAG]
diff --git a/bin/rk35/rk3506_ddr_750MHz_v1.02.bin b/bin/rk35/rk3506_ddr_750MHz_v1.02.bin
new file mode 100644
index 00000000..6928be3e
Binary files /dev/null and b/bin/rk35/rk3506_ddr_750MHz_v1.02.bin differ
diff --git a/bin/rk35/rk3506_ddr_800MHz_v1.01.bin b/bin/rk35/rk3506_ddr_800MHz_v1.01.bin
deleted file mode 100644
index a161811c..00000000
Binary files a/bin/rk35/rk3506_ddr_800MHz_v1.01.bin and /dev/null differ
diff --git a/bin/rk35/rk3506b_ddr_589MHz_v1.01.bin b/bin/rk35/rk3506b_ddr_589MHz_v1.01.bin
deleted file mode 100644
index e6d6bb4b..00000000
Binary files a/bin/rk35/rk3506b_ddr_589MHz_v1.01.bin and /dev/null differ
diff --git a/bin/rk35/rk3506b_ddr_750MHz_v1.02.bin b/bin/rk35/rk3506b_ddr_750MHz_v1.02.bin
new file mode 100644
index 00000000..a0142a01
Binary files /dev/null and b/bin/rk35/rk3506b_ddr_750MHz_v1.02.bin differ
diff --git a/doc/release/RK3506_CN.md b/doc/release/RK3506_CN.md
index 81f828b6..391bb096 100644
--- a/doc/release/RK3506_CN.md
+++ b/doc/release/RK3506_CN.md
@@ -1,5 +1,23 @@
 # RK3506 Release Note
 
+## rk350{6,6b}_ddr_750MHz_v1.02.bin
+
+| 时间       | 文件                         | 编译 commit | 重要程度 |
+| ---------- | :--------------------------- | ----------- | -------- |
+| 2024-10-09 | rk350{6,6b}_ddr_750MHz_v1.02.bin | c7d3dcd3f0 | 重要     |
+
+### New
+
+1. 新增RK3502支持。
+
+### Fixed
+
+| Index | 重要程度 | 更新说明            | 问题现象                                       | 问题来源 |
+| ----- | -------- | ------------------- | ---------------------------------------------- | -------- |
+| 1     | 重要     | ddr频率更新到750MHz | 避免干扰wifi信号，最高频率从800MHz修改为750MHz | -        |
+
+------
+
 ## rk3506_tee_v1.22.bin
 
 | 时间       | 文件                 | 编译 commit | 重要程度 |
diff --git a/doc/release/RK3506_EN.md b/doc/release/RK3506_EN.md
index 89f64cb9..287a0d50 100644
--- a/doc/release/RK3506_EN.md
+++ b/doc/release/RK3506_EN.md
@@ -1,5 +1,23 @@
 # RK3506 Release Note
 
+## rk350{6,6b}_ddr_750MHz_v1.02.bin
+
+| Date       | File                         | Build commit | Severity  |
+| ---------- | :--------------------------- | ------------ | --------- |
+| 2024-10-09 | rk350{6,6b}_ddr_750MHz_v1.02.bin | c7d3dcd3f0 | important |
+
+### New
+
+1. Add rk3502 support.
+
+### Fixed
+
+| Index | Severity  | Update                                      | Issue description                    | Issue source |
+| ----- | --------- | ------------------------------------------- | ------------------------------------ | ------------ |
+| 1     | important | The maximum DDR frequency changed to 750Mhz | Avoid interference with wifi signals | -            |
+
+------
+
 ## rk3506_tee_v1.22.bin
 
 | Date       | File                 | Build commit | Severity  |