S7 Stuck on boot screen after updating a bootloader - Samsung Galaxy S7 Questions and Answers

Hi, mates!
Was updating a bootloader and modem to flash a new firmware. After updating modem all was ok, after updating bootloader phone stuck on samsung logo. Trying to get to recovery via home+power+vol+, it doesn't react. Trying to hard reset it via home+power+vol+ it just restarts and again get stuck on samsung logo. Any advice?
Thanx!

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