该主题 https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/953192#M228723 uab线连接电脑，看看能不能安装驱动，如果可以安装驱动，就可以升级固件。<BR />可以重新启动机器，拔掉网线数据线开机试试 Thu, 19 Dec 2019 13:17:15 GMT Tsingddi 2019-12-19T13:17:15Z hp cp4025升级固件后报49.4C02 https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/952378#M228619 <P>hp cp4025升级固件后，开机自检到第6步完成时，就绪画面刚出现就立即报错49.4C02 ERROR，升级固件以前机器运行正常，升级后不正常了，请问现在该如何解决？是固件本身有问题嘛？谢谢</P> Sat, 14 Dec 2019 13:18:59 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/952378#M228619 luckyszd 2019-12-14T13:18:59Z 回复： hp cp4025升级固件后报49.4C02 https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/952572#M228638 <P>建议下载下面的固件程序，重新升级固件测试</P><P><A href="https://support.hp.com/cn-zh/drivers/selfservice/swdetails/hp-color-laserjet-enterprise-cp4025-printer-series/3965792/swItemId/lj-100773-12" target="_blank">https://support.hp.com/cn-zh/drivers/selfservice/swdetails/hp-color-laserjet-enterprise-cp4025-printer-series/3965792/swItemId/lj-100773-12</A></P> Mon, 16 Dec 2019 07:18:41 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/952572#M228638 Tsingddi 2019-12-16T07:18:41Z 回复： hp cp4025升级固件后报49.4C02 https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/952828#M228683 <P>机器报错，不在就绪状态，无法再次刷新固件。还有其它解决方法吗？谢谢！</P> Tue, 17 Dec 2019 16:27:00 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/952828#M228683 luckyszd 2019-12-17T16:27:00Z 回复： hp cp4025升级固件后报49.4C02 https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/953192#M228723 uab线连接电脑，看看能不能安装驱动，如果可以安装驱动，就可以升级固件。<BR />可以重新启动机器，拔掉网线数据线开机试试 Thu, 19 Dec 2019 13:17:15 GMT https://h30471.www3.hp.com/t5/da-yin-ji-shi-yong-xiang-guan-wen-ti/hp-cp4025sheng-ji-gu-jian-hou-bao49-4C02/m-p/953192#M228723 Tsingddi 2019-12-19T13:17:15Z