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Reset on BQ4050

2907loic
(@2907loic)
New Member Customer

Hi,

Battery was locked cause of cells under voltage.

I want to unlock it now

Voltage is good now but no chip info and error on unsealing

 

Batterie is ASUS C42N1846

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This topic was modified 3 years ago by 2907loic
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Topic starter Posted : 12/10/2023 2:24 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

Paste picture of the chip. 

 

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Posted : 12/10/2023 5:23 pm
2907loic
(@2907loic)
New Member Customer
image
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Topic starter Posted : 13/10/2023 6:52 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

It is not bq4050 like was mentioned in the topic title. It is different chip. 

 

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Posted : 13/10/2023 11:17 am
2907loic
(@2907loic)
New Member Customer

@djibattworkshop NBLA reconise it as BQ4050, what type of chip is ? And how can I reset it?

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Topic starter Posted : 13/10/2023 11:45 am
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @2907loic

NBLA reconise it as BQ4050,

No. Chip was not detected at all. Check BatInfo picture. 

IMG 20231013 145440

Chip Name (Smbus) is empty which means chip should be verified visually on the pcb. 

Chip Name (Database) has nothing to do with actually used chip in the battery. It is just a guess based on other batteries which was used by another customers. So other same battery had bq4050 chip on the pcb. 

 

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Posted : 13/10/2023 12:03 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @2907loic

what type of chip is ?

It is Renesas RAJ240_045A20 chip. 

 

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Posted : 13/10/2023 12:04 pm
2907loic
(@2907loic)
New Member Customer

Thanks for all informations i'll know it next time Smile

Is this chip resetable by NBLA ?

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Topic starter Posted : 13/10/2023 12:18 pm
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