求助:短接触点也无法进入maskrom模式

饿客登门

下午照常用，然后刷机2次做测试，正常。
但是刚刚在尝试进入maskrom模式（镊子短接触点）完全就是“没有发现设备”
线和各接口也没有松动的现象，这种情况能返厂检测下或返修吗？

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终于进入一次maskrom，然后刷了自己做的应急固件，再之后系统启动后无限循环~ 这是不是EMMC坏了？

1. [  245.153882] mmcblk1: retrying using single block read
   
2. [  245.159359] mmcblk1: error -84 transferring data, sector 64, nr 8, cmd response 0x900, card status 0x0
   
3. [  245.165064] mmcblk1: error -84 transferring data, sector 66, nr 6, cmd response 0x900, card status 0x0
   
4. [  245.170568] mmcblk1: error -84 transferring data, sector 67, nr 5, cmd response 0x900, card status 0x0
   
5. [  245.175960] mmcblk1: error -84 transferring data, sector 68, nr 4, cmd response 0x900, card status 0x0
   
6. [  245.181340] mmcblk1: error -84 transferring data, sector 70, nr 2, cmd response 0x900, card status 0x0
   
7. [  245.186537] mmcblk1: error -84 transferring data, sector 71, nr 1, cmd response 0x900, card status 0x0
   
8. [  245.191653] mmc1: Got data interrupt 0x00000002 even though no data operation was in progress.
   
9. [  245.196750] mmcblk1: error -110 sending stop command, original cmd response 0x900, card status 0x400900
   
10. [  245.199865] mmcblk1: error -84 transferring data, sector 64, nr 8, cmd response 0x900, card status 0x0
    

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这才使用多久，就出现这样的问题，EMMC搭配的NAND是TLC的吧？

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求能管事的帮忙解决？5天前的帖子光有人看却没有人管。