The Ultimate Multi Tool (UMT) is widely regarded as one of the most robust and reliable software boxes in the mobile repair industry. Specifically, its SPD Module is a go-to solution for technicians dealing with devices powered by Spreadtrum (now Unisoc) chipsets. When it comes to IMEI repair, UMT offers a balance of automation and safety that few other tools match, though it requires hardware procurement to function.

If IMEI write fails: