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I bought my Mars in February and I'm very happy with it so far.
Until I upgraded my device to 8.1 today. I used the instructions, I flashed ver. 2020081915, which should be from last Wednesday as far as I can see. The only problem which I'm experiencing is that my device became very unstable, it boots for several minutes, it randomly displays that System UI is not responding, and something doesn't look right at all. Besides, something is eating the battery very fast.
Any advice how to proceed? Probably I must flash the device once again, but I don't see how the result can be different if I do one and same thing. Anyone experiencing the same problem?
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