When physical ROM is broken, the phone is not abble to load the bootloader, so it can’t boot to system mode nor recovery mode.
Only download mode is available !
If it is the case, a solution is to replace motherboard by one coming from a functional phone (same model) with a broken screen.
And build for it since it is not supported, [ROM][7.1.2] LineageOS 14.1 for GT-I8190/GT-I9070 [2017-06-09] | XDA Forums
Easier is to buy a cheap s4mini (e-0.18-r available) or s5mini (e-0.9-p available) or a motorola or the new little 4" Unihertz Atom XL - atom-xl