刷机方法也找到。 就是没有找到相应的软件！
NVflash_Nabi_FW Update SOP
Step job content
A upgrade to prepare:
1 Unplug all cables (Power cable, ADB USB cable)
2 Connect the power cord as shown in Figure 2.
3 Shut down at the same time, then the "Power" key and "+" key for 4s ~ 6s after the release, it will enter NV flash mode ready to burn (Figure 1)
4 Connect the ADB USB cable (located on the left side of the machine, Figure 2)
5 will be burning Image copy to any disk (such as D drive), and extract the USB driver: Figure 3
6 Install the USB driver (Figure 4.5.6.7.)
A. Hardware driver information appears.
B. Select Driver Package.
C. Driver Installation ... Figure 6.
D. Install Driver OK Display Figure 7.
7 run "nvflash_update-signed.cmd" (Figure 8), the upgrade process takes about 3 minutes.
Figure 9 shows the programming, Figure 10 shows the programming OK.
8 After burning OK, wait for about 1 ~ 2 minutes to wait for boot initialization OK and then shut down, and unplug the power.
Note:
1. OTA old version to upgrade to the new version is not limited, but the new version can not be reversed back to the old version, burning DIAG version can be reversed
2 new version back to the old version, can not use OTA, U disk can not be upgraded
3. The new version back to the old version of the burn does not enter, while receiving the "Power" key and "+" key for 4s ~ 6s only release the "Power" key,
But do not release the "+" key, directly run "nvflash_update-signed.cmd", until the normal recording continue to release the "+" key
4. At the same time then "Power" key and "-" key for 4s ~ 6s, is to enter fast boot mode
5. At the same time then "Power" key and "+" key for 4s ~ 6s, is entering NV flash mode
6. Usually MP machine has blown fuse, run "nvflash_update-signed.cmd",
If it is not blown fuse machine, burn to use "nvflash_update.cmd"
7. old PVT machine burn, use "PVT Only"
另外，我家还有个10吋的 Nabi XD ，这款我几年前就找到刷机包和方法。并在机锋上发过帖。
