关于CS21 ThinkPad BIOS对USB type-c接口充电功能的重要更新-联想知识库

关于CS21 ThinkPad BIOS对USB type-c接口充电功能的重要更新

ThinkPad T2022-07-14知识编号：200870

催更新

故障现象:

本次针对ThinkPad USB type-c接口和电源设备的充电功能发布了一版BIOS重要更新。

影响机型如下：

X1 Yoga 6th Gen (Type 20XY, 20Y0) Laptop (ThinkPad)

X1 Carbon 9th Gen - (Type 20XW, 20XX) Laptop (ThinkPad)

X1 Nano Gen 1 (Type 20UN 20UQ) Laptop (ThinkPad)

X13 Yoga Gen 2 (Type 20W8, 20W9) Laptop (ThinkPad)

X1 Extreme 4th Gen (Type 20Y5,20Y6) Laptop (ThinkPad)

P1 Gen 4 (type 20Y3, 20Y4 ) Laptop (ThinkPad)

X12 Detachable Gen 1 (Type 20UW, 20UV) Laptop (ThinkPad)

L13 Gen 2 (type 20VH, 20VJ) Laptops (ThinkPad)

L13 Yoga Gen 2 (type 20VL, 20VK) Laptops (ThinkPad)

X1 Titanium (Type 20QA, 20QB) Laptop (ThinkPad)

T14s Gen 2 (Type 20WM, 20WN) Laptop (ThinkPad)

X13 Gen 2 (Type 20WK, 20WL) Laptop (ThinkPad)

T14 Gen 2 (Type 20W0, 20W1) Laptop (ThinkPad)

P14s Gen 2 (Type 20VX, 20VY) Laptop (ThinkPad)

T15 Gen 2 (Type 20W4, 20W5) Laptop (ThinkPad)

P15s Gen 2 (Type 20W6, 20W7) Laptop (ThinkPad)

L14 Gen 2 Type 20X1 20X2 Laptops (ThinkPad)

L15 Gen 2 Type 20X3 20X4 Laptop (ThinkPad)

解决方案:

此版本BIOS 主要是针对受影响机型的USB-C接口经常切换用于适配两种及以上USB-C型电源设备时（例如：USB-C AC电源适配器，USB-C 扩展坞/雷电3扩展坞，USB-C显示器/雷电3显示器，USB-C移动电源等），需尽快将BIOS更新到以下示例或更新的版本，以用于解决或预防电源设备不充电的问题。

产品名称	BIOS / ECP	联想官网链接	版本	发布时间
X1 Yoga 6th Gen (Type 20XY, 20Y0) Laptop (ThinkPad) X1 Carbon 9th Gen - (Type 20XW, 20XX) Laptop (ThinkPad)	1.51 / 1.32	BIOS/UEFI	1.51-1.32	03 Feb 2022
X1 Nano Gen 1 (Type 20UN 20UQ) Laptop (ThinkPad)	1.49 / 1.44	BIOS/UEFI	1.49-1.44	15 Feb 2022
X13 Yoga Gen 2 (Type 20W8, 20W9) Laptop (ThinkPad)	1.32 / 1.24	BIOS/UEFI	1.32-1.24	21 Feb 2022
X1 Extreme 4th Gen (Type 20Y5,20Y6) Laptop (ThinkPad) P1 Gen 4 (type 20Y3, 20Y4 ) Laptop (ThinkPad)	1.14 / 1.15	BIOS/UEFI	1.14-1.15	18 Feb 2022
X12 Detachable Gen 1 (Type 20UW, 20UV) Laptop (ThinkPad)	1.20 / 1.16	BIOS/UEFI	1.20	22 Feb 2022
L13 Gen 2 (type 20VH, 20VJ) Laptops (ThinkPad) L13 Yoga Gen 2 (type 20VL, 20VK) Laptops (ThinkPad)	1.16 / 1.14 Nvpro 1.14 / 1.10 Vpro	BIOS/UEFI	1.16-1.14	09 Mar 2022
X1 Titanium (Type 20QA, 20QB) Laptop (ThinkPad)	1.19 / 1.13	BIOS/UEFI	1.19-1.13	07 Mar 2022
T14s Gen 2 (Type 20WM, 20WN) Laptop (ThinkPad) X13 Gen 2 (Type 20WK, 20WL) Laptop (ThinkPad)	1.44 / 1.38	BIOS/UEFI	1.44	03 Mar 2022
T14 Gen 2 (Type 20W0, 20W1) Laptop (ThinkPad) P14s Gen 2 (Type 20VX, 20VY) Laptop (ThinkPad) T15 Gen 2 (Type 20W4, 20W5) Laptop (ThinkPad) P15s Gen 2 (Type 20W6, 20W7) Laptop (ThinkPad)	1.49 / 1.40	BIOS/UEFI	1.49	23 Mar 2022
L14 Gen 2 Type 20X1 20X2 Laptops (ThinkPad) L15 Gen 2 Type 20X3 20X4 Laptop (ThinkPad)	1.55 / 1.47	BIOS/UEFI	1.55-1.47	29 Mar 2022

注意：

更新时请注意，需要移除所有系统外接设备，只连接更新BIOS必须的电源适配器。

备注:

WW Tips请参考网页

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