Help me Please!!

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1

2020-03-10 08:38

So, i have tried many firmware for my m3s and i have tried any type of tools that what internet told me, but i still can not installed any firmware, it always announce that the firmware corrupt. and i just can't open it or repair it..

my m3s stuck in the flyme 5.1.5.3G

and i dont know how to repair it///
can you help me guys?