Hello there,
I've tried on my 5.8.8 pw2 (B0D4 model) but the downgrade process did not work. I downloaded the factory image, copied it to the root folder, and removed from my PC. However, the option for "update my device" was unavailable. I plugged my PW2 back to my PC, and the image file disappeared. Any ideas about what happened? I appreciate!
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