HP Calvin UMA 6050A2466401-MB-A01 PV 20121101

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Calvin UMA 6050A2466401-MB-A01 PV 20121101
HP 6470b 6050A2466401-MB-A03_HSTNN-I07C-UMA photo
8470P_68ICF Unlocks 16MB
ProBook_6570B_OK 8MB.BIN
 

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Hello.

We have Elitebook 8470P 6050A2466401-MB-A04 . After several BIOS flash, it do this: Light on charging OK , but laptop wont turn on (AT ALL , power led is not emitting). All components around BIOS ok (soldered by IR.) checked for short, all looks OK.

We got 8 different BIOS flash for the same motherboard : 6050A2466401-MB-A04.

laptop wont turn on. By shcematic A04 there are missing some parts (Q2993). Motherboard 6050A2466401-MB-A04 need schematic 6050A2466401-MB-A02 (Calvin UMA MV BUILD 2012.03.08) to solve propertly. (guess some manufacturer mistake in label of the motherboards)

UPDATE:
None of motherboard works, all circuits looks OK, changed BQ 736 and TPS , no result, voltage inputs and outputs in both circuits OK , error on transistors around BQ 736, (Q6012) input OK output not working, transistor OK

can anyone help ? looks like lot of those laptops doing the same error. e got now 3 motherboards with same error .
 
Last edited:

logowepng38bb8a053a7ac67733aa413af450bb83.png

HP-Compaq - Hp probook 6570b CASPER-UMA_CR_HPB MV_MB_V1

Bios Hp probook 6570b HP EliteBook 8570P (Casper- uma_cr_hpb mv_mb_v1) 16MB.bin
vinafix.com
this file size invalid 8193 kb
 
Ratheesh said:

logowepng38bb8a053a7ac67733aa413af450bb83.png

HP-Compaq - Hp probook 6570b CASPER-UMA_CR_HPB MV_MB_V1

Bios Hp probook 6570b HP EliteBook 8570P (Casper- uma_cr_hpb mv_mb_v1) 16MB.bin
vinafix.com
this file size invalid 8193 kb
Click to expand...
send file bios old 8MB and photo motherboard code i check.
 
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