If a phone stalls continuously on the startup logo or restarts repeatedly, flashing fresh stock firmware with a DA file clears out corrupt system partitions.
Tecno BD2d DA File: Complete Guide, Download, and Usage The Tecno BD2d (Spark 2) tecno bd2d da file
: Usually found inside the official firmware/stock ROM for your model. General Guide to Flashing with a DA File If a phone stalls continuously on the startup
Turn off the phone, remove the battery (if possible, then reinsert), and connect it to the PC using the USB cable. remove the battery (if possible