If software bypass fails, the phone is in (not preloader). You can force BROM mode using a testpoint on the motherboard:

A "Dead Boot" doesn't always mean a hardware fault. For the VIVO Y11 PD1930AM, it means the . Here are the classic symptoms:

The Vivo Y11, with the specific hardware code PD1930AM, is an entry-level Android smartphone. While not a flagship device, it is ubiquitous in many markets due to its affordability. Its ubiquity means that a large number of technicians encounter its specific failure modes. The “AM” suffix typically denotes a regional hardware variant, crucial because using the incorrect firmware can permanently damage the device. Thus, the search term immediately signals a targeted, model-specific repair.