# Missing RTC Wake Time Settings in BIOS on Chuwi LarkBox S (BIOS EM\_IDL15\_S7\_V0.41.6)

**URL:** https://forum.chuwi.com/t/missing-rtc-wake-time-settings-in-bios-on-chuwi-larkbox-s-bios-em-idl15-s7-v0-41-6/51838
**Category:** Larkbox S
**Created:** [June 9, 2025, 7:46am UTC](https://forum.chuwi.com/t/missing-rtc-wake-time-settings-in-bios-on-chuwi-larkbox-s-bios-em-idl15-s7-v0-41-6/51838 "2025-06-09T07:46:13Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![mmoonly](https://avatars.discourse-cdn.com/v4/letter/m/b5ac83/32.png) [@mmoonly](https://forum.chuwi.com/u/mmoonly)
#### Post date: [June 9, 2025, 7:46am UTC](https://forum.chuwi.com/t/missing-rtc-wake-time-settings-in-bios-on-chuwi-larkbox-s-bios-em-idl15-s7-v0-41-6/51838/1 "2025-06-09T07:46:13Z")

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Hello Chuwi Support Team and Community,

I recently purchased a Chuwi LarkBox S for work and encountered an issue with the RTC Wake function in the BIOS. My BIOS version is **EM\_IDL15\_S7\_V0.41.6**.

In the **Advanced → S5 RTC Wake Settings** section, I enabled the **Wake System from S5 via RTC** option. However, after enabling it, no additional settings for configuring the wake-up time (e.g., specific time or schedule) appear. I’ve checked other BIOS sections, but I couldn’t find any related options.

Here are the details:

- **Model:** Chuwi LarkBox S
- **BIOS Version:** EM\_IDL15\_S7\_V0.41.6
- **Issue:** No wake time settings appear after enabling RTC Wake.
- **What I’ve tried:** Enabled the option, saved settings, rebooted, and checked all BIOS tabs for hidden settings.

Is this a known limitation of this BIOS version, or am I missing something? Is there a newer BIOS version that supports full RTC Wake functionality? I can provide screenshots of the BIOS if needed.

Any help or guidance would be greatly appreciated!

Serial number HLarBSl1C240801035

 ![изображение](https://us1.discourse-cdn.com/flex020/uploads/chuwi/original/2X/5/54dd8d88595acdfc95eb9fd3072bc8111a237e84.jpeg)

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<div class="post-metadata">

### Author: ![ChuwiESnotactive](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.chuwi.com/chuwiesnotactive/32/8190_2.png) [@ChuwiESnotactive](https://forum.chuwi.com/u/ChuwiESnotactive)
#### Post date: [June 10, 2025, 10:31am UTC](https://forum.chuwi.com/t/missing-rtc-wake-time-settings-in-bios-on-chuwi-larkbox-s-bios-em-idl15-s7-v0-41-6/51838/2 "2025-06-10T10:31:20Z")

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