This is normal Dell procedure, just be patient. Tested for BIOS passwords and errors.
Dell Latitude 3520 Motherboard with i5-1135G7 Processor 3VVMC 03VVMC
Dell Latitude 3520 Motherboard with i5-1135G7 Processor 0D9VNX INTUNE LOCK
Dell Latitude 3520 Laptop Motherboard With i3-1115G4 3.00 GHz CPU 00DN01 0DN01
00DN01 Dell Latitude 3520 Laptop Motherboard With i3-1115G4 3.00 GHz CPU
Dell Latitude 3520 Laptop Motherboard With i5-1135G7 2.4GHz DDR4 0D9VNX D9VNX
Jxjslp Replacement LCD Back Cover Rear Top Lid for Dell Latitude 15 3520 E3520 Series Laptop,New Dell Latitude 3520 Back Cover P/N:017XCF 17XCF Black
