Secret codes on the are powerful shortcuts that transform your dialer into a diagnostic control panel. While you may never need most of them, understanding Engineer Mode and the basic sensor tests can save you a trip to the repair shop.
If adaptive brightness is too aggressive: How to Use Secret Codes on TECNO Spark 20
Displays your device's unique International Mobile Equipment Identity number. *#*#4636#*#* Secret codes on the are powerful shortcuts that
Using secret codes on your TECNO Spark 20 is a relatively straightforward process. Here's a step-by-step guide: *#*#4636#*#* Using secret codes on your TECNO Spark
View Specific Absorption Rate (radiation) and safety labels.
. These commands allow you to check hardware health, verify your warranty status, and view advanced network information that isn't typically available in the standard settings menu. How to Enter Codes To use any of the codes below, simply open the Phone/Dialer