刷機後 otg線無法使用?

有人跟我一樣的情形嗎?請有經驗的大大幫忙一下 感謝!!

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XDA 討論區有提到問題出在 SiyahKernel v2.4.1

SiyahKernel v2.4.2
Posted on December 9, 2011
Changelog:

fixed USB OTG
Added intellidemand governor. this is a modified ondemand governor and very battery friendly.
default lowest freq is set to 200MHz. default governor is still (tweaked)conservative.
some other tweaks & fixes
tweaked ondemand, conservative and ondemandx governors. I think stuck-to-800MHz problem is fixed.
Enabled some tweaks in tweaks.sh. video playback on external sd should be better now.
disabled hidden ssid in wireless driver to fix wifi tethering problems (thanks to Entropy512)
back to SLAB
fixed usb keyboard&mouse problems

不過俺裝過 SiyahKernel v2.4.2
OTG 一樣沒動作 ...........