# Corebook X battery charge asynchronous **URL:** \ **Category:** Laptops\ **Created:** [May 1, 2021, 8:46pm UTC](https://forum.chuwi.com/t/corebook-x-battery-charge-asynchronous/23251 "2021-05-01T20:46:45Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Erto44B](https://avatars.discourse-cdn.com/v4/letter/e/b487fb/32.png) [@Erto44B](https://forum.chuwi.com/u/Erto44B)\ **Post date:** [May 1, 2021, 8:46pm UTC](https://forum.chuwi.com/t/corebook-x-battery-charge-asynchronous/23251/1 "2021-05-01T20:46:45Z")
Hi, I’m the owner of a Corebook X, i5 7th gen 16 GB Ram . I noticed that the 100% system notification doesn’t coincide with the the led, beside the type c port, status (fully charged blue led). Exactly the led take 10/15 minutes more to become blue after the battery status reach the 100% in system. This happen with both type c 65W charger or OEM charger from manufactures. Looking on the forum I’ve found out that other device by Chuwi has that problem and that a BIOS update with relative EC Controller update will fix the problem. How can I request for a BIOS update? Thanks in advance. 😁 ---
**Author:** ![Biosham](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.chuwi.com/biosham/32/351_2.png) [@Biosham](https://forum.chuwi.com/u/Biosham)\ **Post date:** [May 2, 2021, 6:41am UTC](https://forum.chuwi.com/t/corebook-x-battery-charge-asynchronous/23251/2 "2021-05-02T06:41:53Z")
You can request files from [service@chuwi.com](mailto:service@chuwi.com) ---
**Author:** ![Erto44B](https://avatars.discourse-cdn.com/v4/letter/e/b487fb/32.png) [@Erto44B](https://forum.chuwi.com/u/Erto44B)\ **Post date:** [July 13, 2021, 8:30am UTC](https://forum.chuwi.com/t/corebook-x-battery-charge-asynchronous/23251/3 "2021-07-13T08:30:49Z")
Never got an answer back from Chuwi service. I tried also to do an EC reset leaving the batter unplugged for several minutes but nothing changed.