So here are the results :
pin 24 => 0v so not enabled
resistance to ground very high => 7M
resistance to ground of L7650 => he says it starts from 0 but rises quickly to few Kohm (he's on Kohm range)
I ask him to measure U4901 on R4901 pads to see.
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Ok thank you for your answer.
So PP5V_G3S must be present when we plug the power cable ?
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Sorry forgot to give ohm values on missing voltages :
PP1V_PRIM => 44 ohm (quite low but I don't know if it's ok)
PP1V2_PRIM => 5.6k
PP5V_G3S => > 20k
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Mac mini 2018
Hi,
I am trying to help someone to repair a mac mini A1993 820-00939.
The mac mini won't power on.
Voltages on U7800 are all good except
PP1V2_PRIM 0v
PP1V_PRIM 0v
PP5V_G3S is missing too
Someone has the power on sequence of this ?
Thank you on advance.
Eric...
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Intel NUC7i7BNB
Hi,
I am looking for the schematic for this Intel NUC7i7BNBNUC.
Best regards,
Eric1 Photo
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Re: Terra Mobile 1542K
EUREKA !!! IT WORKS !
I take this BIOS.ROM of 16MB, do a clean ME with Flash Image Tool.
So I got my two files outimage1 and outimage2, flash them and now the laptop is fine.
Thank you for help
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Re: Terra Mobile 1542K
I get this from the support of the laptop.
I see in the ALL folder a file BIOS.ROM of 16MB can we do something with that ?
How do you do to have to 2 outputs files ?...
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Re: Terra Mobile 1542K
I flash with your outputimage1 and 2 the laptop turns on, the fan is spinning but still nothing on screen and the laptop turn off and turns on after few minutes.
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Re: Terra Mobile 1542K
So if I understand the ME.ROM is the entire file that goes into U46 and U47 by splitting it to 2x8MB ?
Lost, I am lost
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Re: Terra Mobile 1542K
Sorry but where you see that BIOS.rom is 512Kb ?
For me the filesize is 5120KB so 5MB !...
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Re: Terra Mobile 1542K
Let me resume :
- I desoldered the chip U46 and backup it with my programmer with the name U46_backup (...).bin
- I desoldered the chip U47 and backup it with my programmer with the name U47_backup (...).bin (the old name is the famous me_ter.bin)
So now I have 2 8MB files.
I put my files again because it seems my first backup (bios+ec) of U46 was not good....
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Re: Terra Mobile 1542K
Sorry but i don't understand the relation between the 2 IC CHIPS (16Mbit / 8MB each) and files BIOS.ROM and ME.ROM of the clevo zip file !
I thought :
- BIOS.ROM goes into U46 as it is written "BIOS+EC" on the board
- ME.ROM goes into U47 as it is written "ME" on the board
But it's not like that ?
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Re: Terra Mobile 1542K
The 2 chips are identical on the board : 25B64CS1G
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Re: Terra Mobile 1542K
ok thank but explain me how to flash
BIOS.ROM is 5MB so I flash it directly on my U46 so the last 3MB will be blank ??
And which outimage I take the first one ??
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Re: Terra Mobile 1542K
me_ter.bin => it's my U47 IC CHIP third backup
But cannot be loaded by Flash Image Tool don't understand why (MEanalyzer can read it)
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Re: Terra Mobile 1542K
I have another marking on the motherboard :
6-77-N350DW00-D02-2
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Re: Terra Mobile 1542K
My motherboard is :
6-71-n3500-d02
And yes it is a N350DW...
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Re: Terra Mobile 1542K
Yes I am looking but ME.ROM has a size of 16MB !
My IC CHIP for ME ROM is only 8MB so I don't understand.
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Re: Terra Mobile 1542K
So I am a little bit confused could someone help me to understand ?
So my laptop is a CLEVO N350DW.
After a bios upgrade and an error, the laptop boot but I have a black screen and the fan is spinning.
So I think I need to flash the two IC chips.
Both chips are GD25B64CSIGR so 64Mbit => 8MB, aren't they ?
I can find thanks to a link on this forum BIOS.ROM and ME.ROM but there are two problems :
- BIOS.ROM is only 5MB so how to flash it on the 8MB IC chip ?
- ME.ROM...
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