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Sorry but your Device 8520 doesn't support OS 6 ,it can't handle OS 6 because it lacks on device memory it has only 256 MB internal memory but OS 6 require more and also it is not compatible with OS 6.So remain at OS 5 it suits better and also works well for 8520.
Prince
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Click " Like " if you want to Thank someone.
If Problem Resolves mark the post(s) as " Solution ", so that other can make use of it.
