小弟第一次弄BGA.废了半天劲！植锡贴了好几次！EMMC是一台米4移动4G手机的！拆下来看了看，发现时钟脚好像掉点了！就用刀片刮了刮！发现没掉，但是GND铜皮漏出来了！每次植锡时钟脚都会和GND连在一起！费了九牛二虎之力终于风枪烙铁合作！贴到板子上成功了！分区正常！格式化！测了下速度，如图！然后导入了一些歌曲，电脑手机都能播放！但是不知道为什么插卡音箱说什么都无法播放！换了好几台都不行！各位大神有知道为什么的吗？？？
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