Due to some flashing errors, Tecno Camon CM CA6S phones even stop USB charging. In such a situation, the DA file is the only one that bypasses secure boot and makes USB communication possible again. If your Tecno Camon CM CA6S mobile is being detected only from the test point before flashing, then understand that the secure boot is completely locked, and nothing will be possible without the DA file. If the software of the Tecno Camon CM CA6S phone becomes corrupt and recovery is not accessible, then the DA file is the only solution that makes the phone usable by pushing the system files again.
Without DA file, it is not possible to format partition in phone like Tecno Camon CM CA6S. In some cases, only format all + download solves the problem, and this work is done through DA file. When your mobile just gives a brief vibration and turns off, it is not completely dead but in secure boot. DA file is what unlocks it and makes it flashable, especially in Tecno Camon CM CA6S model. Sometimes Tecno Camon CM CA6S mobile starts heating up during flashing and charging also stops, in such a situation secure boot gets corrupt. DA file can restore it.