<div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g31/M0A/BA/D4/userphotos/2025/02/21/17/500_ChtlyGe4RgWAeDLMAA0FkY6MaQc694.jpg" style="height:1080px;width:1920px"  /></div><div layer1="img-e"></div><br /><div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g31/M05/BA/B0/userphotos/2025/02/21/17/500_ChxoHme4RgWAbau5AAyyyUapeIU344.jpg" style="height:720px;width:1280px"  /></div><div layer1="img-e"></div><br /><div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g31/M07/BA/B0/userphotos/2025/02/21/17/500_ChxoHme4RgaAJLjTAAweC2pXA5Q801.jpg" style="height:1080px;width:1920px"  /></div><div layer1="img-e"></div><br /><div layer1="img-s"></div><div class="tz-picture"><img src="http://club2.autoimg.cn/album/g31/M00/BA/B0/userphotos/2025/02/21/17/500_ChxoHme4RgaARjguAApzdBQPUhs437.jpg" style="height:1080px;width:1920px"  /></div><div layer1="img-e"></div><br /><div layer1="text-s"></div><div class="tz-paragraph">&nbsp;车友们，升级4420失败了，左侧菜单消失，无法登陆。降级刷不行，平级刷start点不了，有什么修复办法吗，去4s他们说店里没有这么高版本。。。</div><div layer1="text-e"></div><br />

升级4420失败，左侧菜单消失，怎么修复？