diff --git a/RKBOOT/RK3566MINIALL.ini b/RKBOOT/RK3566MINIALL.ini
index 8f3244d2..d9acb560 100644
--- a/RKBOOT/RK3566MINIALL.ini
+++ b/RKBOOT/RK3566MINIALL.ini
@@ -5,7 +5,7 @@ MAJOR=1
 MINOR=1
 [CODE471_OPTION]
 NUM=1
-Path1=bin/rk35/rk3566_ddr_1056MHz_v1.18.bin
+Path1=bin/rk35/rk3566_ddr_1056MHz_v1.20.bin
 Sleep=1
 [CODE472_OPTION]
 NUM=1
@@ -14,10 +14,10 @@ Path1=bin/rk35/rk356x_usbplug_v1.17.bin
 NUM=2
 LOADER1=FlashData
 LOADER2=FlashBoot
-FlashData=bin/rk35/rk3566_ddr_1056MHz_v1.18.bin
+FlashData=bin/rk35/rk3566_ddr_1056MHz_v1.20.bin
 FlashBoot=bin/rk35/rk356x_spl_v1.13.bin
 [OUTPUT]
-PATH=rk356x_spl_loader_v1.18.113.bin
+PATH=rk356x_spl_loader_v1.20.113.bin
 [SYSTEM]
 NEWIDB=true
 [FLAG]
diff --git a/RKBOOT/RK3566MINIALL_NAND.ini b/RKBOOT/RK3566MINIALL_NAND.ini
index 54758b43..c583e67d 100644
--- a/RKBOOT/RK3566MINIALL_NAND.ini
+++ b/RKBOOT/RK3566MINIALL_NAND.ini
@@ -5,7 +5,7 @@ MAJOR=1
 MINOR=8
 [CODE471_OPTION]
 NUM=1
-Path1=bin/rk35/rk3566_ddr_1056MHz_v1.18.bin
+Path1=bin/rk35/rk3566_ddr_1056MHz_v1.20.bin
 Sleep=1
 [CODE472_OPTION]
 NUM=1
@@ -14,10 +14,10 @@ Path1=bin/rk35/rk356x_usbplug_nand_v1.04.bin
 NUM=2
 LOADER1=FlashData
 LOADER2=FlashBoot
-FlashData=bin/rk35/rk3566_ddr_1056MHz_v1.18.bin
+FlashData=bin/rk35/rk3566_ddr_1056MHz_v1.20.bin
 FlashBoot=bin/rk35/rk356x_spl_nand_v1.14.bin
 [OUTPUT]
-PATH=rk3566_spl_loader_nand_v1.18.107.bin
+PATH=rk3566_spl_loader_nand_v1.20.107.bin
 [SYSTEM]
 NEWIDB=true
 [FLAG]
diff --git a/bin/rk35/rk3566_ddr_1056MHz_v1.17.bin b/bin/rk35/rk3566_ddr_1056MHz_v1.17.bin
deleted file mode 100644
index ac5a7a6d..00000000
Binary files a/bin/rk35/rk3566_ddr_1056MHz_v1.17.bin and /dev/null differ
diff --git a/bin/rk35/rk3566_ddr_1056MHz_v1.18.bin b/bin/rk35/rk3566_ddr_1056MHz_v1.18.bin
deleted file mode 100644
index d4a154bb..00000000
Binary files a/bin/rk35/rk3566_ddr_1056MHz_v1.18.bin and /dev/null differ
diff --git a/bin/rk35/rk3566_ddr_1056MHz_v1.20.bin b/bin/rk35/rk3566_ddr_1056MHz_v1.20.bin
new file mode 100644
index 00000000..c3237e38
Binary files /dev/null and b/bin/rk35/rk3566_ddr_1056MHz_v1.20.bin differ
diff --git a/bin/rk35/rk3566_ddr_920MHz_v1.17.bin b/bin/rk35/rk3566_ddr_920MHz_v1.17.bin
deleted file mode 100644
index a24fe293..00000000
Binary files a/bin/rk35/rk3566_ddr_920MHz_v1.17.bin and /dev/null differ
diff --git a/bin/rk35/rk3566_ddr_920MHz_v1.18.bin b/bin/rk35/rk3566_ddr_920MHz_v1.18.bin
deleted file mode 100644
index cfa27967..00000000
Binary files a/bin/rk35/rk3566_ddr_920MHz_v1.18.bin and /dev/null differ
diff --git a/bin/rk35/rk3566_ddr_920MHz_v1.20.bin b/bin/rk35/rk3566_ddr_920MHz_v1.20.bin
new file mode 100644
index 00000000..decda61d
Binary files /dev/null and b/bin/rk35/rk3566_ddr_920MHz_v1.20.bin differ
diff --git a/doc/release/RK3566_CN.md b/doc/release/RK3566_CN.md
index 1faf8653..01d24ea9 100644
--- a/doc/release/RK3566_CN.md
+++ b/doc/release/RK3566_CN.md
@@ -1,5 +1,26 @@
 # RK3566 Release Note
 
+## rk3566_ddr_{1056...920}MHz_v1.20.bin
+
+| 时间       | 文件                               | 编译 commit | 重要程度 |
+| ---------- | :--------------------------------- | ----------- | -------- |
+| 2024-01-12 | rk3566_ddr_{1056...920}MHz_v1.20.bin | 77170a5e90 | 重要     |
+
+### New
+
+1. 可通过工具配置tRFC值。
+2. 增加read/write vref training，提高读写稳定性。
+
+### Fixed
+
+| Index | 重要程度 | 更新说明                                                 | 问题现象                              | 问题来源 |
+| ----- | -------- | -------------------------------------------------------- | ------------------------------------- | -------- |
+| 1     | 重要     | 更新DDR3/LPDDR3 rd/wr training码型提高读写信号余量       | 优化DDR3/LPDDR3读写信号余量           | -        |
+| 2     | 重要     | 修正6GB LPDDR3/4初始化失败问题                           | 6GB LPDDR3/4 初始化时卡住             | -        |
+| 3     | 重要     | LPDDR4/4X 780Mhz开启read odt，改善部分颗粒780MHz下稳定性 | 部分LPDDR4/4X颗粒780M下read稳定性较差 | -        |
+
+------
+
 ## rk3568_bl31_ultra_v2.16.elf
 
 | 时间       | 文件                        | 编译 commit | 重要程度 |
diff --git a/doc/release/RK3566_EN.md b/doc/release/RK3566_EN.md
index f4d33143..762375f4 100644
--- a/doc/release/RK3566_EN.md
+++ b/doc/release/RK3566_EN.md
@@ -1,5 +1,26 @@
 # RK3566 Release Note
 
+## rk3566_ddr_{1056...920}MHz_v1.20.bin
+
+| Date       | File                                 | Build commit | Severity  |
+| ---------- | ------------------------------------ | ------------ | --------- |
+| 2024-01-12 | rk3566_ddr_{1056...920}MHz_v1.20.bin | 77170a5e90   | important |
+
+### New
+
+1. The tRFC value can be configured through ddrbin_tools.
+1. Add read write vref trining to improve compatibility.
+
+### Fixed
+
+| Index | Severity  | Update                                                       | Issue description                                    | Issue source |
+| ----- | --------- | ------------------------------------------------------------ | ---------------------------------------------------- | ------------ |
+| 1     | important | Update DDR3/LPDDR3 rd/wr training pattern to improve read and write signal margin | Optimize DDR3/LPDDR3 read and write signal margin    | -            |
+| 2     | important | Fixed 6GB LPDDR3/4 initialization failure problem            | 6GB LPDDR3/4 panic during DDR initialization         | -            |
+| 3     | important | Enable LPDDR4/4X read odt under780M to implove stability.    | Some LPDDR4/4X particles have poor stability at 780M | -            |
+
+------
+
 ## rk3568_bl31_ultra_v2.16.elf
 
 | Date       | File                        | Build commit | Severity  |