I completely succeded porting my stock recovery with spreadtrum auto recovery porter for my Advan S50K 6.0 android with Spreadtrum SC7731 chipset
when i try to flash it via Research Download Tool, i got error with failed status
i try it via ADB, but device didnt detected my ADB but its detected in Device Manager
i try it via Fastboot mode too, "fastboot flash recovery recovery-sign.img" but it stuck in "sending". in other way i try to boot with it too, " fastboot boot recovery-sign.img" but stuck in downloading
i really appreciate your help