升级bios的方法是什么？升级失败是否可以百分百从备份中恢复？或其他简单方法～
推荐回答（4个）
相信各位“老鸟”都有升级BIOS的经历，升级BIOS可以使计算机获得许多新的功能，比如主板对更高级CPU的支持，对大容量硬盘的支持，对新的操作系统的支持及修正主板本身的一些BUG。 升级BIOS是一件简单的事情，但如果疏忽大意或遇到外界不可抗力，BIOS的升级就会失败，造成黑屏。BIOS升级失败主要有以下2种情况：1.使用了错误的BIOS版本；2.在BIOS擦写过程中突然断电。这些都有可能造成电脑无法正常启动。 下面我来介绍几种BIOS的恢复方法： 1.最简单可靠的方法就是找主板供应商更换一块新的BIOS芯片，但要注意您的主板一定要是从正当的渠道购买来的，这样才享有售后服务。如您购买了假货或水货，主板供应商将以假货或水货为由拒绝向您提供售后服务，这时您可连哭都来不及了！ 2.在BIOS中，有一个引导块叫（Boot Block），当BIOS升级时，这部分一般是不覆盖的，这样在写入失败后，电脑仍能启动。不过，BIOS Boot只支持ISA显卡和软驱，当主板上插的是PCI或AGP显卡时，启动电脑会黑屏。这时候，可以找一块ISA显卡换上，不过要先说明的是您在升级BIOS时一定要做一张启动盘。然后用那张启动盘进行恢复。如果您找不到ISA显卡只好另找一台计算机，在那张启动盘上编辑一个Autoexec.bat文件，在里面加上执行语句，如W6163IMJ.260 /py/sn（W6163IMJ.260是备份下来的旧BIOS的文件名）。 3.拔掉已损坏的主板BIOS，方法是先断电。然后用一字螺丝刀从两边将BIOS芯片撬松，拔下BIOS芯片。再找一块相同型号的主板BIOS芯片对准插座轻轻插入。开机进入CMOS，在BIOS Features Setup 一项中，开启所有ROM映射功能。但最关键的是要将Chipset Features Setup中的System BIOS Cacheable一项置为Enable。重新用软盘启动计算机，运行与主板相应的BIOS刻录程序，并在程序中要求备份当前的BIOS程序，这时不要关闭计算机，将正常的BIOS芯片拔下，换上已损坏的BIOS芯片，拔下BIOS芯片时不要接触其他电路，因为带电插拔是非常危险的。此时继续运行刻录程序，用储存下来的BIOS程序更新BIOS。完成后重新启动计算机即可。 最后要说明的是，现在升级BIOS大多从互联网上下载，您一定要去正规的大网站或主板供应商的网站上去下载，并用网络蚂蚁监测看是否下载时有错误存在。这样也可减少BIOS升级的失败几率。
新主板从主板官网下载对应主板型号的bios版本和bios升级工具升级基本不会失败。
其它地方下载可能不兼容的就可能失败。
失败可能变砖报废主板，只能用专业工具刷
升级危险，失败可在升级前备份。在相同型号电脑的官方下载Bios和升级工具。
你这问题问的简单粗暴，可是回答起来可是不简单啊，要写教程可是很长的，而且还要自己刷一边提供图
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