LONGER LK1/LK4/U20/U20 Plus/U30 主板
最新款 LONGER LK1/LK4 或 Alfawise U20/U30 主板，原装 3D 打印机主板，兼容 LONGER LK1、LK4、Alfawise U20、U20 Plus、U30。（请注意，电源接触器已升级为更优质的型号，我们将同时提供电源线。）
这款主板是 LK1/LK4/U20/U30/U20 Plus 的升级版，但仍完全兼容旧款 LONGER LK1/LK4 和 ALFAWISE U20/U30/U20 Plus（Longer 代工）。它已经过 Longer 3D 研发部门的测试。我们在发货前已升级了固件。您可以通过我们的 Google 云端硬盘下载最新固件：
LK1/U20: https://drive.google.com/file/d/12DCQq-DBpGd2ScBK-RBBRjaP2_i48asK/view?usp=sharing
LK4/U30: https://drive.google.com/file/d/1FDppcRA01wQiUIhP6LDPXbvS4X_Ty1BW/view?usp=sharing
U20 Plus： https://drive.google.com/file/d/1tsxiwbM0-OlyHtoZVQX08F2nd5-OZeFH/view?usp=sharing
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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