Downgrade firmware for Sony WF-1000XM4 and Factory reset Nokia Android phone

  1. Downgrade firmware for Sony WF-1000XM4 (true-wireless earbuds)

MDR Proxy – FW sidegrade tool for Sony bluetooth headphones/earbuds.

Widely-accepted good firmware version is 1.2.6 (bad version is 1.4.2)

2. Factory reset Nokia Android phone:

How to factory reset Nokia 6.1

3. Bypass FRP (Firmware Reset Protection)

Nokia 6.1 (TA 1043) Frp Bypass

Volume-Up + Power button to enter restore menu.

4. In case Google Setting keep crashing after the Step 3 (Bypass FRP):

  • Go into the following apps and cleared the cache and cleared storage.
  • Download Manager
  • Google Play Services
  • Google Play Store

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