HIT THE THANKS BUTTON
Newer MTK (mediatek) devices usually request for an AUTHENTICATION CERTIFICATE TO FLASH.. here am sharing the file i have.. i have used it on two different phones.. makes me think it can work even on most devices out there.. ...
By flashing a custom rom, your warranty is void 0ooh wait its void the moment you unlock bootloader.
FOLLOW INSTRUCTIONS!!! to avoid bricked devices. ask where need be!.
Not the best tab (i mean performance wise is almost pathetic:p), but hey!! ...
Lenovo s5 (K520) TWRPs
These TWRPs should work on both the 3/32gb and 4/64gb variants
1. Download the crn twrp to your device or pc
2. Unlock bootloader
2. Flash recovery via another twrp or via fastboot...
This works on any android Version. (Used it on the latest 8.0) .
No need for DOWNGRADES and combination firmwares. (works even on binary 5)
WHAT YOU NEED.
-z3x 29.5 box or higher. (you can find the cracked version which doesnt need...
Auth files are specific to the preloader they're signed with afaik.
You might be right.. Those who willing to try this should go ahead.. You just might be as lucky as i was..
Worked for me on two different mtk chipsets...