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toymil / MDRID291600.py
Created March 19, 2020 10:25
Sony WH-1000XM3 Downgrade Script
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# source:
# https://www.reddit.com/r/sony/comments/akynjz/psa_the_new_sony_wh1000xm3_firmware_v411_is/ekcytlg/
# https://paste.ubuntu.com/p/D5VRhs3rZj/
#
# version: 2019-04-11T21:18:17Z
"""
0) Please understand that this could brick/damage your device and that if something goes wrong there's no recovery possible.
1) Make sure your headphones are running firmware version 4.1.1
2) Perform a factory reset. Turn headphones off, then hold both "Power" and "NC" buttons until the blue led blinks 4 times (hold for about 7 seconds)