Hello friends. Please HELP!! - SOLVED !! I think there is a bug in samba3 android protocol please review. The issue is on password. DO NOT USE "comma" character "," on password of smb folder I have X9S and Z9S zidoo devices. I reestar Windows Server 2016, SMB loggin in correct, i can see the roor shared folders but i can not get in because "Unknown Error". Here it is part of the LOG done with zidoolog. Shared folders are on 192.168.1.133 (SVRW2016) 10-13 02:11:32.422 6770 6770 D EmojiAltPhysicalKeyDetector: onKeyUp() : KeyEvent { action=ACTION_UP, keyCode=KEYCODE_DPAD_CENTER, scanCode=352, metaState=0, flags=0x8, repeatCount=0, eventTime=2561450, downTime=2561221, deviceId=2, source=0x301 } 10-13 02:11:32.422 6770 6770 D EmojiAltPhysicalKeyDetector: onKeyUp() : Not Mapped: 23 10-13 02:11:32.424 7686 12322 D lisupan : Open smb share - SambaDevice [ url=smb://SVRW2016/, host=SVRW2016, ip=192.168.1.133, user=Admin, passWord=P4s,W0rd.001, type=4] 10-13 02:11:32.425 7686 12322 W ContextImpl: Calling a method in the system process without a qualified user: android.app.ContextImpl.sendBroadcast:763 android.content.ContextWrapper.sendBroadcast:396 android.content.ContextWrapper.sendBroadcast:396 zidoo.samba.manager.RTD1295SmbManager.mountSmb:78 com.zidoo.fileexplorer.task.OpenSmbShareTask.doInBackground:74 10-13 02:11:32.426 5085 5975 D MountService: smbPath = //192.168.1.133/DAVID, mountPath = /tmp/ramfs/mnt/192.168.1.133#DAVID, user = Admin, domain=null 10-13 02:11:32.426 5085 5975 D VoldConnector: SND -> {71 smb mount //192.168.1.133/DAVID /tmp/ramfs/mnt/192.168.1.133#DAVID Admin P4s,W0rd.001 null} 10-13 02:11:32.426 3870 3989 I Vold : option = username=Admin,password=P4s,W0rd.001,domain=null,iocharset=utf8,mapchars,soft,nounix,noserverino,sec=ntlm,uid=1023,gid=1023,file_mode=0777,dir_mode=0777 10-13 02:11:32.426 3870 3989 I Vold : Smb Path = //192.168.1.133/DAVID 10-13 02:11:32.426 3870 3989 I Vold : mount Path = /tmp/ramfs/mnt/192.168.1.133#DAVID 10-13 02:11:32.426 3870 3989 I Vold : haoge is handsome! 10-13 02:11:32.431 3870 3989 I Vold : [system/vold/VolumeManager.cpp,int VolumeManager::SmbMountShare(const char *, const char *, const char *, const char *, const char *),1981] haoge mount option ret = -1 , 22 , Invalid argument 10-13 02:11:32.436 3870 3989 I Vold : [system/vold/VolumeManager.cpp,int VolumeManager::SmbMountShare(const char *, const char *, const char *, const char *, const char *),1984] haoge mount option_v2 ret = -1 , 22 , Invalid argument 10-13 02:11:32.436 5085 5979 D VoldConnector: RCV <- {934 Invalid argument} 10-13 02:11:32.437 5085 5979 D VoldConnector: RCV <- {200 71 -1} 10-13 02:11:32.437 5085 5369 D MountService: SMB VoldResponseCode code = 934 10-13 02:11:32.437 5085 5369 W ContextImpl: Calling a method in the system process without a qualified user: android.app.ContextImpl.sendBroadcast:763 com.android.server.MountService.onEventLocked:1180 com.android.server.MountService.onEvent:991 com.android.server.NativeDaemonConnector.handleMessage:128 android.os.Handler.dispatchMessage:98 10-13 02:11:32.438 7686 12322 D lisupan : Mount SMB fail 10-13 02:11:32.427 0 0 E CIFS : Unknown mount option "W0rd.001" 10-13 02:11:32.432 0 0 E CIFS : Unknown mount option "W0rd.001" 10-13 02:11:32.524 4008 4101 E BufferQueueProducer: [Toast] connect(P): already connected (cur=1 req=1) 10-13 02:11:32.525 7686 10586 D mali_winsys: EGLint new_window_surface(egl_winsys_display*, void*, EGLSurface, EGLConfig, egl_winsys_surface**, egl_color_buffer_format*, EGLBoolean) returns 0x3000 10-13 02:11:35.077 0 0 D : [drivers/soc/realtek/rtd129x/irda/venus_ir.c] venus_ir_IrMessage2Keycode 422 report key scancode=0x42 keycode=158 10-13 02:11:35.111 5085 5944 D WindowManager: shotcut keyCode = 4 10-13 02:11:35.502 5085 5944 D WindowManager: shotcut keyCode = 4 10-13 02:11:35.502 6770 6770 D EmojiAltPhysicalKeyDetector: onKeyUp() : KeyEvent { action=ACTION_UP, keyCode=KEYCODE_BACK, scanCode=158, metaState=0, flags=0x8, repeatCount=0, eventTime=2564530, downTime=2564138, deviceId=2, source=0x301 } 10-13 02:11:35.502 6770 6770 D EmojiAltPhysicalKeyDetector: onKeyUp() : Not Mapped: 4 see complet LOG on "SMB_Unknown error.txt" file atteched thank you all best regards