إصلاح لابتوب Hp Elite X2 تعمل بشاشة سوداء | تعديل ملف البيوس

HP ELİTE X2 laptop repair works without displaying data on the screen The motherboard of this laptop is coded LA-G9331P REV 1.0 Before starting the repair process, it must be noted that this device does not have a general diagram or board view. Therefore, tracking the fault will depend on the experience and scientific and logical foundations that maintenance experts must have, which are acquired academically and while practicing work in this field. When connecting the motherboard to the power source, it was noted that the motherboard draws a current of approximately 500 milliamps, and this gives us an initial impression that the power circuits are somewhat intact, including the processor circuits, but this does not prevent us from measuring and examining all the circuits and ensuring their integrity. After ensuring that all circuits on the motherboard are intact, we must move on to dealing with the BIOS, because it is the first suspect in this case Here we encountered another problem (especially since there is no diagram for this board), which is that the board contains five programmable chips! Therefore, it is necessary to determine which of these chips is the BIOS chip Based on sound logic and experience in this field, the intended segment was identified and this was confirmed by dealing with it by the programmer Before raising the chip and dealing with it, all the important signals on the chip lines were measured using an oscilloscope, and the integrity of all these signals was confirmed. Thus, we have confirmed the integrity of the processor and the PCH to some extent after we made sure of the attempt to communicate between them and the BIOS chip. After that, the BIOS chip was removed, a copy of its software was taken, stored, analysed, modified, and its problems repaired using BİOS EDITING, based on several tools and programs, as you will notice while watching. After that, the device returned to working well, praise be to God. Watch also BOOST CONVERTOR II circuits    • دوائر رفع الجهد BOOST CONVERTOR II   What happens if we change the BIOS chip to another?    • ايه اللي يحصل لو غيرنا شريحة البيوس بأخري.   Steps to diagnose and fix the problem of not reading RAM in laptops    • خطوات تشخيص واصلاح مشكلة عدم قراءة الرامات...   #Laptop_repair #Labtop maintenance #HP_laptop #ELITE_X2 #BIOS_SIMES #Edit_BIOS #BIOS_problems #Mohamed_Aram #Reference