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Ask A1708 820-00840 -A Not powering on

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phamvanbaoloc

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20v 0.5a without battery. 20v 2a with battery.
fan spin for 2-3 sec and stop

PP20V_USBC_XB_VBUS = 5V (OK)
PP3V3_UPC_XB_LDO = 3.3V (OK)
PP1V8_UPC_XB_LDOA = 1.8V (OK)
PP1V8_UPC_XB_LDOD =1.8V (OK)
PP1V1_UPC_XB_LDO_BMC = 0V (I THINK NOT OK?)

I replaced the U3200
I get 20v, but the CPU is not working ( 19.3V, 0.13A, 2.62W)
I unplugged the charger and reconnected it, I got 5V
I replaced 3 CD3215 and got the results as above.

My original BIOS-file (corrupt) https://drive.google.com/file/d/1l3Yujx-6dCr-sJvEcxWuRyWk5TcD7Xvf/view?usp=sharing
Can someone please help me create a new working BIOS-file? I would REALLY appreciate it!! =)
 

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z6304384870906_7c8fbd1c0630eb99a01e442dfa94ce49.jpg
20v 0.5a without battery. 20v 2a with battery.
fan spin for 2-3 sec and stop

PP20V_USBC_XB_VBUS = 5V (OK)
PP3V3_UPC_XB_LDO = 3.3V (OK)
PP1V8_UPC_XB_LDOA = 1.8V (OK)
PP1V8_UPC_XB_LDOD =1.8V (OK)
PP1V1_UPC_XB_LDO_BMC = 0V (I THINK NOT OK?)

I replaced the U3200
I get 20v, but the CPU is not working ( 19.3V, 0.13A, 2.62W)
I unplugged the charger and reconnected it, I got 5V
I replaced 3 CD3215 and got the results as above.

My original BIOS-file (corrupt) https://drive.google.com/file/d/1l3Yujx-6dCr-sJvEcxWuRyWk5TcD7Xvf/view?usp=sharing
Can someone please help me create a new working BIOS-file? I would REALLY appreciate it!! =)
 

Download list

builds872222.zip
5.1 MB · Views: 1

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