本帖最后由 DesertHuYang 于 2015-12-27 09:26 编辑

从Windows 10 Mobile直接回刷官方8.1 DOC2的ROM理论上是不能刷CSC越狱的（三星8.1的固件里阻止了自定义注册表的加载，需要在WP8 GDR3下预先修改），但是8.1可以支持SD卡越狱，教程转自spavlin@xda-developers.com （这个方法不知道可不可以导入中文输入法，有兴趣可以帮忙测试）。此教程应该也适用于其他三星的8.1设备。
如果设备运行的是已经越狱WP 8，建议使用其他方法刷CSC越狱，那个绝对完美越狱，具体方法论坛里有，可以导入中文输入法。
如果懒得一步步越狱升级的话这个方法应该可以试一下，MTP连电脑可能会有点慢，尤其是升了win10m的话。CSC越狱在8.1下MTP可以像没越狱一样秒连。
懒得翻译了，应该没什么障碍，附件也在网盘里。有闲情雅致的朋友可以帮忙翻译一下。Thanks!
Interop Unlock for firmware DOC2_RS WP8.1
链接：http://pan.baidu.com/s/1c1dBcOC 密码：tf1c

现已有越狱ROM，但我没测试过，需要刷入自定义CSC（*.mbn）
http://bbs.wfun.com/thread-887966-1-1.html
http://forum.xda-developers.com/windows-phone-8/development/custom-rom-ativ-s-t3272160

附上原文
Interop Unlock for firmware DOC2_RS WP8.1
1. GT-I8750 wp8.1 OS8.10.14157.200
2. In the Data \ Users \ Public \ Documents create a file “Non-Production Errors.txt“.
3. Change the date 100 years ahead and open the settings or “Additional Call Settings“ or “Extra Setting“. You should receive a notice, and there choose “delete“. Return date.
4. Register the phone to the developer.
5. Install SamWPSystem.xap on phone memory using your PC.
6. Go to the application “Control Memory“ and select in “Where to store new applications,“ “SD-Card.“
7. Copy InteropUnlocker_Debug_ARM.xap (-W_O_L_F-) to the root of your SD-card.
http://forum.xda-developers.com/show....php?t=2434884
8. Go to the CustomWPSystem and click “SD Card permissions“, select “sd card“. Next, click on “Unhide WPSystem (Optional)“.
9. Paragraph “select target app“, choose either “Additional Call Settings“, or “Extra Setting“, and swing it out of the store.
10. CustomWPSystem press “select the xap“ go to “sd card“, and select the file “InteropUnlocker_Debug_ARM.xap“, Click “Apply XAP“.
11. When write “Operation Complete“, go to Settings, and open
“D: \ WPSystem \ Apps \ {522875f3 ...“ or “D: \ WPSystem \ Apps \ {7df63b5e ...“
Open InteropUnlocker and click “Unlock“
12. Install wphTweaks_v10.xap or any other registry editor.
Editing:
SYSTEM \ ControlSet001 \ services \ Mtp
ObjectName => LocalSystem
Type => 16
SOFTWARE \ Microsoft \ MTP
DataStore => C:
13. Copy or create your OEMSettings.reg OEMSettings.zip in the folder Windows \ Packages \ RegistryFiles.
14. Make a Hard Reset.
15. Repeat steps 2 and 12.
Last edited by spavlin; 9th December 2015 at 12:00 PM.