MIUI restart by itself and won't boot again!!


Jan 16, 2016
Im using latest EU Stable rooted. The phones rebooting itself several times in the last days and now it rebooted again but it wont boot up, it keeps rebooting after MIUI logo appears. I've tried to wipe dalvik cache, unroot, flash stock boot.img, I even flash the whole ROM again (without data format) but it wont boot, keeps restarting at MIUI logo.
Is there any way to solve this? I just want to backup my data, thats all it matters... if I clean flash with data format I will lose everything..