Help Vivo s1 mtk chip deadboot

[enocleus]

Customer told me he try to update via sd card after reboot phone dosen't on Any have a file or what tool should i use
tnx

 

[Franky38]

Customer told me he try to update via sd card after reboot phone dosen't on Any have a file or what tool should i use
tnx

Good, model and variable of vivo s1 for example (PD1913F)

 

[enocleus]

Yes PD1913F
Vivo 1907