I've got Kindle Voyage with downgradeable firmware (below 5.8.7) but I cannot find 5.5.0 firmware to downgrade and make the jailbreak described in this post:
https://wiki.mobileread.com/wiki/5_x_Jailbreak
I found a site with HUGE collection of old firmwares:
https://www.touslesdrivers.com/index...26&v_code=1563
but there isn't the 5.5.0 there
perhaps another FV will work for jailbreak
Could anyone help me, please?