My device is KOA, SN is G0B0 GR09 6182 00E7, 3G + Wi-Fi
Follow to the instructions from
https://www.mobileread.com/forums/sh...d.php?t=275877 by knc1
1/ Downgrade to v5.7.4 by “update_KOA_5.7.4_initial.bin” – ok (See attached pic_1)
2/ JB by “main-htmlviewer.tar.gz” – ok (See attached pic_2)
3/ Install “hotfix by Update_jailbreak_hotfix_1.14.N_install.bin” - remove USB cable after copied the file, the device show up Update Error (See attached pic_3)
Have any idea about this problem?