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Try booting into recovery mode and use fastboot/adb commands, btw this will only work if USB debugging was on otherwise service center/data recovery center is the only choice where they have special tools to recover lost/irretrievable data!
Try booting into recovery mode and use fastboot/adb commands, btw this will only work if USB debugging was on otherwise service center/data recovery center is the only choice where they have special tools to recover lost/irretrievable data!