Xiaomi Redmi Note 13 Pro / Note 13 Pro+Enable Diag Mode, ADB, or access the hidden Engineer Menu on a Redmi/Xiaomi device running a Spreadtrum / Unisoc (SPD) CPU, you can use dialer codes, ADB shell commands, or service tools.Method 1: The Dialer CodesOpen the stock phone dialer app and type the following codes sequentially. The menu should pop up automatically after typing the last character:*#*#83781#*#* (Most common engineer mode code for Unisoc/SPD devices)*#*#4554#*#* or *#*#11634#*#* (Alternative diagnostic/VoLTE activation codes)*#*#6484#*#* or *#*#64663#*#*...Debes estar registrado para ver los enlaces