（以解决）求助，mt7620n usb 挂载不上

yecunbo

居然犯了一个低级的错误，晚上吃饭时会不会是D+-数据线接饭，找到相册的引脚图纸一看好像真的接反了（我草）
吃完饭跑回家接着捣鼓，线换过来就好了，最开始改一次性成功了，中途为了加电阻搞挂了，在这里提醒广大爱好者一点要仔细，也要谢谢各位给我帮助提醒的朋友》

fwr310 v4 硬改加 usb,挂载不上USB
日志如下：
Sun May 28 16:01:58 2017 kern.info kernel: [  203.910000] usb 2-1: new full-speed USB device number 6 using ohci-platform
Sun May 28 16:01:58 2017 kern.err kernel: [  204.100000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:01:58 2017 kern.err kernel: [  204.390000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:01:59 2017 kern.info kernel: [  204.680000] usb 2-1: new full-speed USB device number 7 using ohci-platform
Sun May 28 16:01:59 2017 kern.err kernel: [  204.870000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:01:59 2017 kern.err kernel: [  205.160000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:01:59 2017 kern.info kernel: [  205.450000] usb 2-1: new full-speed USB device number 8 using ohci-platform
Sun May 28 16:02:00 2017 kern.err kernel: [  205.870000] usb 2-1: device not accepting address 8, error -62
Sun May 28 16:02:00 2017 kern.info kernel: [  206.050000] usb 2-1: new full-speed USB device number 9 using ohci-platform
Sun May 28 16:02:00 2017 kern.err kernel: [  206.470000] usb 2-1: device not accepting address 9, error -62
Sun May 28 16:02:00 2017 kern.err kernel: [  206.470000] hub 2-0:1.0: unable to enumerate USB device on port 1
Sun May 28 16:02:31 2017 kern.info kernel: [  236.820000] usb 2-1: new low-speed USB device number 10 using ohci-platform
Sun May 28 16:02:31 2017 kern.err kernel: [  237.010000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:02:31 2017 kern.err kernel: [  237.300000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:02:32 2017 kern.info kernel: [  237.590000] usb 2-1: new low-speed USB device number 11 using ohci-platform
Sun May 28 16:02:32 2017 kern.err kernel: [  237.780000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:02:32 2017 kern.err kernel: [  238.070000] usb 2-1: device descriptor read/64, error -62
Sun May 28 16:02:32 2017 kern.info kernel: [  238.360000] usb 2-1: new low-speed USB device number 12 using ohci-platform
Sun May 28 16:02:33 2017 kern.err kernel: [  238.780000] usb 2-1: device not accepting address 12, error -62

  显示识别为慢速USB，导致无法挂载，d+d-数据线都换了，电阻10K 22欧姆也加了 ，C69 电容也拆了还是不行。求高人指点什么问题

peng954846755

表示d+-直接接到usb上没用电阻 拆c69 只能识别手里的一个U盘 读卡器都不能识别 速度3M左右 感觉是U盘的问题 但手里还有两个多的U盘读不出来 同文件系统格式下测的 没办法了 凑合用

peng954846755

peng954846755 发表于 2017-5-28 16:28
表示d+-直接接到usb上没用电阻 拆c69 只能识别手里的一个U盘 读卡器都不能识别 速度3M左右 感觉是U盘的问题 ...

这么讲究  还去理线  我看到焊上了 测试U盘正常识别后 马上就用那个白胶递上去 散热片轻按上去 再通电看是正常识别的 就i不管 等胶干了也不理铜线 直接再用白胶把线到usb的地方都盖上；之前为了拆那个电阻 小心的把那白胶挂掉 结果不小心轻碰了一下铜线。。。。。。这尼玛就掉了 白胶太软没太大固定性 就起个保护作用  又费劲的重新焊  之后就不管了  不敢折腾  焊d+-太费劲了  锡太次 铜线不容易沾

yhky

看样子是固件问题，没有自动挂载U盘

yecunbo

yhky 发表于 2017-5-28 21:38
看样子是固件问题，没有自动挂载U盘

应该不是固件的问题，我之前可以的，读取速度也挺快

qq222g

焊d+-点位拍上来看看

yecunbo

qq222g 发表于 2017-5-29 10:55
焊d+-点位拍上来看看

图片传了看不清，手机拍照就那样，有什么好办法可以检测有没有焊接上？

yecunbo

qq222g 发表于 2017-5-29 10:55
焊d+-点位拍上来看看

有一个奇怪的现象，我把鼠标插上去识别为new full-speed USB device，插U盘识别为new lowl-speed USB device,之前我可以把iPhone6手机插上去充电，现在插上去一点反应都没有.这是插鼠标上去的日志，帮我看看


May 30 14:28:49 kernel: usb 2-1: new full-speed USB device number 59 using ohci-platform
May 30 14:28:49 kernel: usb 2-1: device descriptor read/64, error -62
May 30 14:28:50 kernel: usb 2-1: device descriptor read/64, error -62
May 30 14:28:50 kernel: usb 2-1: new full-speed USB device number 60 using ohci-platform
May 30 14:28:50 kernel: usb 2-1: device not accepting address 60, error -62
May 30 14:28:50 kernel: usb 2-1: new full-speed USB device number 61 using ohci-platform
May 30 14:28:51 kernel: usb 2-1: device not accepting address 61, error -62
May 30 14:28:51 kernel: hub 2-0:1.0: unable to enumerate USB device on port 1
May 30 14:28:55 kernel: usb 2-1: new full-speed USB device number 62 using ohci-platform
May 30 14:28:55 kernel: usb 2-1: device descriptor read/64, error -62
May 30 14:28:55 kernel: usb 2-1: new full-speed USB device number 63 using ohci-platform
May 30 14:28:56 kernel: usb 2-1: device descriptor read/64, error -62
May 30 14:28:56 kernel: usb 2-1: new full-speed USB device number 64 using ohci-platform
May 30 14:28:56 kernel: usb 2-1: device not accepting address 64, error -62
May 30 14:28:57 kernel: usb 2-1: new full-speed USB device number 65 using ohci-platform
May 30 14:28:57 kernel: usb 2-1: device not accepting address 65, error -62
May 30 14:28:57 kernel: hub 2-0:1.0: unable to enumerate USB device on port 1
May 30 14:29:01 kernel: usb 2-1: new full-speed USB device number 66 using ohci-platform
May 30 14:29:01 kernel: usb 2-1: device descriptor read/64, error -62
May 30 14:29:02 kernel: usb 2-1: new full-speed USB device number 67 using ohci-platform
May 30 14:29:02 kernel: usb 2-1: device descriptor read/64, error -62
May 30 14:29:02 kernel: usb 2-1: new full-speed USB device number 68 using ohci-platform
May 30 14:29:03 kernel: usb 2-1: device not accepting address 68, error -62
May 30 14:29:03 kernel: usb 2-1: new full-speed USB device number 69 using ohci-platform
May 30 14:29:03 kernel: usb 2-1: device not accepting address 69, error -62
May 30 14:29:03 kernel: hub 2-0:1.0: unable to enumerate USB device on port 1
May 30 14:29:07 kernel: usb 2-1: new full-speed USB device number 70 using ohci-platform
May 30 14:29:07 kernel: usb 2-1: device descriptor read/64, error -62

zace514933362

顶一下。。。。。

qq222g

线弄短点，双绞一下，另外电阻统统拿掉！确保d+-没短路！！肯定行！！不行就重新来过！！我不刮u焊了20次，终于非常完美了！！

yecunbo

qq222g 发表于 2017-5-31 12:28
线弄短点，双绞一下，另外电阻统统拿掉！确保d+-没短路！！肯定行！！不行就重新来过！！我不刮u焊了20次， ...

你是说把引线弄短一点？还有下拉15k的电阻也拿掉吗，这样D+-还需要跟GND连上吗？

yecunbo

高手都来帮我看看

yecunbo

已经搞好了

scdzylq

yecunbo 发表于 2017-5-31 23:04
已经搞好了

如何处理的  麻烦大佬说下

yecunbo

scdzylq 发表于 2018-2-3 10:56
如何处理的  麻烦大佬说下

D+D-线接反了