Your computer needs to recognize the phone even when it is dead. You must install the .
Use a high-quality data cable to prevent connection drops during the process. Step-by-Step Guide: Flashing Stock Firmware Step 1: Install Drivers and Extract Files How to Unbrick INFINIX Hot 40 Pro
If the SP Flash tool stays stuck on 0% or shows "S_BROM_DOWNLOAD_DA_FAIL": Your computer needs to recognize the phone even
Before starting, ensure you have the following ready on a Windows PC: Step-by-Step Guide: Flashing Stock Firmware Step 1: Install
Is your stuck on the logo screen? Is it booting into a loop that never ends? Or worse, is it completely dead with a black screen, refusing to power on?
If you have followed this guide exactly and still see no reaction from the PC (no "Ding" sound when plugging in the USB), the issue is likely hardware: a dead battery or a damaged motherboard charging IC. In that case, visit an INFINIX service center for a professional diagnosis.