# CoreBook 13 i5 1235u, not "X" model! **URL:** \ **Category:** Laptops\ **Created:** [June 8, 2024, 7:56am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146 "2024-06-08T07:56:48Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![leadstar](https://avatars.discourse-cdn.com/v4/letter/l/bcef8e/32.png) [@leadstar](https://forum.chuwi.com/u/leadstar)\ **Post date:** [June 8, 2024, 7:56am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/1 "2024-06-08T07:56:48Z")
Hi there! Just buy it. Not “X” model. Model number CWI621-521E5N1HDNXX. Core i5 1235u 16Gb RAM + 1 free slot Is there any info about it? Drivers/advanced BIOS? ---
**Author:** ![leadstar](https://avatars.discourse-cdn.com/v4/letter/l/bcef8e/32.png) [@leadstar](https://forum.chuwi.com/u/leadstar)\ **Post date:** [June 8, 2024, 7:58am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/2 "2024-06-08T07:58:33Z")
![30878097](https://us1.discourse-cdn.com/flex020/uploads/chuwi/original/2X/9/9c4af02d56b9e321dcaf60c462572b9c818d0a24.jpeg) ![30878107](https://us1.discourse-cdn.com/flex020/uploads/chuwi/original/2X/6/6b1711e542d38ede9872cc074aad1b2117c4ab77.jpeg) ![30878109](https://us1.discourse-cdn.com/flex020/uploads/chuwi/original/2X/b/bb79b9533de632b0e7f5621b8ede8109dabd546e.jpeg) ![30878124](https://us1.discourse-cdn.com/flex020/uploads/chuwi/original/2X/5/507a226451ac7ece4a799c50108765e37155fbf5.jpeg) ![30882372](https://us1.discourse-cdn.com/flex020/uploads/chuwi/original/2X/f/fbf35fd6ecf4698cf7527b4c38f31ec1c5e35d57.jpeg) ---
**Author:** ![leadstar](https://avatars.discourse-cdn.com/v4/letter/l/bcef8e/32.png) [@leadstar](https://forum.chuwi.com/u/leadstar)\ **Post date:** [June 8, 2024, 10:59am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/3 "2024-06-08T10:59:03Z")
Official drivers from support page: [CoreBook13 i5-1235U Drivers](https://www.mediafire.com/file_premium/afqotqc0u9attgh/CoreBook13_i5-1235U_Drivers.zip/file) and OS [DN1E\_YK\_64Home22H2\_11\_俄德法葡西意英中\_AX101\_ALC269\_UP2134\_2023-09-01](https://www.mediafire.com/file_premium/yk05snejj7w69il/DN1E_YK_64Home22H2_11_%25E4%25BF%2584%25E5%25BE%25B7%25E6%25B3%2595%25E8%2591%25A1%25E8%25A5%25BF%25E6%2584%258F%25E8%258B%25B1%25E4%25B8%25AD_AX101_ALC269_UP2134_2023-09-01.zip/file) And still can’t find it on any chuwi pages. ---
**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 9, 2024, 6:06pm UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/4 "2024-06-09T18:06:20Z")
If you tell me your serial number, because with the numbers you gave i do not find any related info.I will be able to send you all the files. We do not have advance BIOS,or updates for it. ---
**Author:** ![leadstar](https://avatars.discourse-cdn.com/v4/letter/l/bcef8e/32.png) [@leadstar](https://forum.chuwi.com/u/leadstar)\ **Post date:** [June 9, 2024, 6:20pm UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/5 "2024-06-09T18:20:55Z")
YCOB131IZH230900331 > [@ChuwiESnotactive](#): > > We do not have advance BIOS,or updates for it This is sad. I’ve already found all drivers. ---
**Author:** ![leadstar](https://avatars.discourse-cdn.com/v4/letter/l/bcef8e/32.png) [@leadstar](https://forum.chuwi.com/u/leadstar)\ **Post date:** [December 26, 2024, 7:48am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/6 "2024-12-26T07:48:29Z")
Is there a number of battery replacement? After a few month it’s drains very fast. Can’t find anything by numbers/QR on battery (4967250P and AL1351|A0331). Google search doesn’t find anything on model name. Another Chuwi laptops have another battery mounts and 11W instead of 8.7 at this model. ---
**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:** [December 27, 2024, 6:40am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/7 "2024-12-27T06:40:45Z")
> [@leadstar](#): > > YCOB131IZH230900331 I send you all the files > **[CoreBook13 i5-1235U Drivers](https://www.mediafire.com/file_premium/afqotqc0u9attgh/CoreBook13_i5-1235U_Drivers.zip/file)** > > MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere. > **[DN1E\_BIOS\_CHUWI\_V107\_Release\_20230921A](https://www.mediafire.com/file_premium/yfblfid7gtphbys/DN1E_BIOS_CHUWI_V107_Release_20230921A.7z/file)** > > MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere. > **[DN1E\_YK\_64Home22H2\_11\_俄德法葡西意英中\_AX101\_ALC269\_UP2134\_2023-09-01](https://www.mediafire.com/file_premium/yk05snejj7w69il/DN1E_YK_64Home22H2_11_%25E4%25BF%2584%25E5%25BE%25B7%25E6%25B3%2595%25E8%2591%25A1%25E8%25A5%25BF%25E6%2584%258F%25E8%258B%25B1%25E4%25B8%25AD_AX101_ALC269_UP2134_2023-09-01.zip/file)** > > MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere. I will ask if we have battery replacemnte so you can buy ---
**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:** [December 31, 2024, 8:22am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/8 "2024-12-31T08:22:25Z")
We have battery in stock, if you want to buy please write to [es.socialmedia@chuwi.com](mailto:es.socialmedia@chuwi.com) ---
**Author:** ![SergiyT](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@SergiyT](https://forum.chuwi.com/u/SergiyT)\ **Post date:** [December 19, 2025, 9:02am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/9 "2025-12-19T09:02:58Z")
Hello. How I can make order of battery model: 4967250P? Couple days ago I’v wrote email to [es.socialmedia@chuwi.com](mailto:es.socialmedia@chuwi.com), but nobody answered. ---
**Author:** ![bruzan2025](https://avatars.discourse-cdn.com/v4/letter/b/b5e925/32.png) [@bruzan2025](https://forum.chuwi.com/u/bruzan2025)\ **Post date:** [December 19, 2025, 9:30am UTC](https://forum.chuwi.com/t/corebook-13-i5-1235u-not-x-model/45146/10 "2025-12-19T09:30:21Z")
> [@SergiyT](#): > > Couple days ago I’v wrote email to [es.socialmedia@chuwi.com](mailto:es.socialmedia@chuwi.com), but nobody answered. That email is in Spanish. > [@SergiyT](#): > > Hello. How I can make order of battery model: 4967250P? You need to go to the Chuwi website and support page.