accidentally update OFW to 7.0.1, what should i do?

switcholic

Noob Account
Mar 7, 2019
1
1
Indonesia
Hi guys, i know this is sound stupid but i accidentally update my OFW to 7.0.1 ver. I try to load sx os with the dongle and tools but it just show the front screen of sx os and cant turn on after that. i try to update my sx os to 2.5.3 ver but it doesnt help at all. switch still cant turn on

any solution or suggestion with this problem?