Fix SD Memory Card Disappearing, Missing Folder or Corrupt in Windows Mobile Device修复SD记忆卡消失，失踪或损坏的文件夹在Windows移动设备

Windows Mobile Pocket PC (PPC) Phone smartphone device accepts an external SD memory card to expand the storage memory so that user can install large amount of applications and data especially program taken up big size of memory space such as GPS navigation device.掌上电脑付费（ PPC ）智能电话设备接受外部SD存储卡扩展储存记忆体，使用户可以安装大量的应用程序和数据尤其是计划采取大尺寸的存储空间，如GPS导航设备。 However, sometimes, user may found that the SD memory card that been inserted into the mobile device card slot been disappeared and no longer been detected suddenly, especially after device wakes up from suspend or sleep state, even though seconds ago the SD card is still working properly.然而，有时，用户可能会发现， SD记忆卡插入到移动设备卡插槽已经消失，不再突然被发现，特别是在设备起床从暂停或休眠状态，即使秒前的SD卡仍然是工作正常。

Other related symptoms that often accompany missing or disappearing SD memory card where the device treats the card as is doesn’t been inserted or existed are including the memory card does show up in File Explorer folder tree but reported as having no free space, or the data on the memory card appears to be corrupted and causing the whole device system to hang and not responding when programs, such as camera, tries to access, write or read from the card.其他相关的症状，往往伴随遗失或消失， SD记忆卡的装置把卡是不会被插入或存在的包括记忆卡也出现在档案总管文件夹树，但报道没有自由空间，或数据存储卡似乎被损坏，造成整个设备系统挂起并没有回应时，程序，如照相机，试图访问，写入或读取的信用卡。 Other peculiar symptom is no data and files are contained within directories.其他特殊症状是没有任何数据和文件包含在目录中。

The problems can be fixed and resolved by simply by just ejecting the card and inserting the card into the SD slot again.该问题可以得到固定和解决的仅仅只是弹出插入卡和信用卡的SD插槽一次。 By reinserting, Windows Mobile smartphone device will able to detect and make the card visible again.通过重新插入， Windows Mobile智能手机设备将能够探测到，使卡再次可见。 However, doing this every time the card disappeared is annoying and troublesome.然而，这样每次卡是恼人的消失和麻烦。 On the other hand, the Windows Mobile system may assume that it’s another memory card that been inserted, in addition to the original “Storage Card”, and thus creating another folder name “Storage Card2″ to represent the what supposed to be the same “Storage Card” or “SDMMC” memory card, causing all links and shortcuts to be broken.另一方面， Windows移动系统可能会承担，它的另一个记忆卡插入，除了原来的“存储卡” ，从而创造另一个文件夹名称为“存储Card2 ”代表什么应该是同样的“存储卡”或“ SDMMC ”记忆卡，造成各个环节和快捷方式被打破。

The problem is possibly caused by different chipset configuration for the SD memory card is incompatible with either the card reader in the device, or the ROM of the device.这个问题可能是造成不同的芯片组配置的SD记忆卡是不符合或者读卡器的装置，或光盘的设备。 It’s这是 reported报告 that the Japan-made SD card, including MicroSD or MiniSD which use Toshiba chipset (such as some models of Kingston brand) is more compatible with most Windows Mobile device, comparing with chipset used in Taiwan made memory card (eg some models of Crucial brand). ，日本制造的SD卡，其中包括迷你型的MicroSD或使用东芝芯片组（如某些型号的金士顿品牌）是更符合大多数Windows Mobile设备，与芯片组使用了在台湾记忆卡（如某些型号的关键品牌） 。

If upgrading the firmware OS or ROM, replacing the handset, or changing to a better quality SD memory card is not an option, here’sa workaround that may help to fix the erroneous detection issue on inserted memory card.如果固件升级操作系统或光盘，取代了手机，或改变，以更好的质量SD记忆卡是不是一种选择，下面的替代，可以帮助修复错误的检测问题上插入记忆卡。

Run Registry Editor (eg运行注册表编辑器（如 PHM Registry Editor PHM注册表编辑器 and和 CeRegEditor ), navigate to the following registry key, and then change the value data for the listed registry entries accordingly. ） ，浏览到下面的注册表项，然后更改值数据所列出的相应注册表项。

[ HKLM\System\StorageManager ] [ HKLM \系统\ StorageManager ]
“ PNPUnloadDelay “=dword: 8196 “ PNPUnloadDelay ” = DWORD值： 8196

[ HKLM\System\StorageManager ] [ HKLM \系统\ StorageManager ]
“ PNPWaitIODelay “=dword: 8196 “ PNPWaitIODelay ” = DWORD值： 8196

Note that the 8196 should be entered as a DECIMAL value.请注意， 8196应输入为十进制值。 The HEXADECIMAL ( HEX ) equivalent is 0×00002004 .十六进制（十六进制）相当于是0 × 00002004 。

According to据 MSDN的MSDN , PHPUnloadDelay specifies time delay, in milliseconds, between unmounting and detaching a device which is unavailable. ， PHPUnloadDelay指定时间延迟，以毫秒为单位之间， unmounting和分离装置而无法使用。 PHPUnloadDelay is the basis for PnPWaitIoDelay, which specifies the amount of time waited before retrying an I/O operation on an unavailable device (such as SD card), with default value of three times the value of PNPUnloadDelay. PHPUnloadDelay的基础是PnPWaitIoDelay ，其中规定了大量的时间等待，然后重试I / O操作就无法使用设备（如SD卡） ，与预设值价值的三倍PNPUnloadDelay 。 By default, as you should see, both registry keys have lower values of 4096 or 1500, which means shorter waiting time, which possible causing Windows Mobile to think that the memory card is gone and taken out when resuming from suspend.默认情况下，你应该看到，这两个注册表项有较低的价值4096或1500 ，这意味着缩短轮候时间，这可能导致Windows移动认为，记忆卡消失，并采取了从恢复时暂停。

If the registry hack above doesn’t yet solving the memory card disappearance error, try to disable the sleep mode on the SD card.如果上述注册表黑客还没有解决记忆卡失踪的错误，尝试禁用睡眠模式的SD卡。 To do so, disable and turn off the power management for the SD memory card by change the following registry key:为了做到这一点，禁用和关闭电源管理的SD记忆卡的变化以下注册表项：

[ HKEY_LOCAL_MACHINE\Drivers\SDCARD\ClientDrivers\Class\SDMemory_Class ] [ HKEY_LOCAL_MACHINE \驱动程序\ SD卡\ ClientDrivers \类\ SDMemory_Class ]
“ DisablePowerManagement “=dword: 00000001 “ DisablePowerManagement ” = DWORD值： 00000001

Soft reset the PPC mobile device after changing the registry keys to check if the memory card issue gone disappear issue has been fixed.软复位的PPC移动设备后，改变了注册表项检查，如果记忆卡的问题已经消失的问题已得到修复。

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This entry was posted on Wednesday, June 25th, 2008 at 2:36 am and is filed under 本条目被张贴在周三， 2008年6月二十五日在上午02点36分，并提交下 Application for Mobile Device 申请移动设备 . 。 You can follow any responses to this entry through the 您可以按照任何反应，这个项目通过 RSS 2.0 2.0 feed. You can 饲料。您可以 leave a response 留下一个反应 , or 或 trackback 引用 from your own site. 从您自己的网站。