Notifications
Clear all

Lenovo 01AV481 chip 045A20 LGC wrong reading

Page 1 / 2
FJ
 FJ
(@brs)
Noble Member Customer
image
ReplyQuote
Topic starter Posted : 08/01/2025 1:48 pm
FJ
 FJ
(@brs)
Noble Member Customer

reading was ok with locked state. chip was detecting correctly.

in reset, tried many times. unseal was successful but on reading eeprom error appeared everytime(did not remember error code. may be 2 or 21).

on clearing errors, again "error". and then reading corrupted.

ReplyQuote
Topic starter Posted : 08/01/2025 1:53 pm
FJ
 FJ
(@brs)
Noble Member Customer

serial no gone. chip no more detected, no option in reset.

ReplyQuote
Topic starter Posted : 08/01/2025 1:56 pm
FJ
 FJ
(@brs)
Noble Member Customer

checked in other software. same wrong reading.

ReplyQuote
Topic starter Posted : 08/01/2025 1:58 pm
FJ
 FJ
(@brs)
Noble Member Customer
image
ReplyQuote
Topic starter Posted : 08/01/2025 2:02 pm
FJ
 FJ
(@brs)
Noble Member Customer

checked with each channel

ReplyQuote
Topic starter Posted : 08/01/2025 2:04 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator

 Do you have the very first BatInfo page picture when readout was Ok ?.. 

 

ReplyQuote
Posted : 09/01/2025 1:01 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @djibattworkshop

Do you have the very first BatInfo page picture when readout was Ok ?..

no, did not save.

ReplyQuote
Topic starter Posted : 09/01/2025 1:59 pm
DjiBattWorkshop
(@djibattworkshop)
Member Moderator
Posted by: @brs

but on reading eeprom error appeared everytime(did not remember error code. may be 2 or 21).

  It looks this chip has custom LGC firmware. Its need to find such battery to check in the lab. 

ReplyQuote
Posted : 09/01/2025 2:06 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @djibattworkshop

Its need to find such battery to check in the lab.

hopefully, will hear good news soon.

ReplyQuote
Topic starter Posted : 09/01/2025 2:10 pm
Nicusor
(@azzido)
Member Admin

@brs 

Have you confirmed what chip is inside the battery ? It could be other than 045A20.

NLBA Laptop Battery Analyzer with Chip Reset & Repair Option

ReplyQuote
Posted : 09/01/2025 8:41 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @azzido

Have you confirmed what chip is inside the battery ? 

yes, visually confirmed

ReplyQuote
Topic starter Posted : 11/01/2025 10:46 am
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @azzido

It could be other than 045A20.

as i mentioned, software was detecting the chip correctly before clearing chip errors.

Posted by: @brs

reading was ok with locked state. chip was detecting correctly.

 

ReplyQuote
Topic starter Posted : 11/01/2025 10:48 am
Nicusor
(@azzido)
Member Admin

@brs 

Unsealing and reading eeprom should not affect the functionality of the chip.

NLBA Laptop Battery Analyzer with Chip Reset & Repair Option

ReplyQuote
Posted : 12/01/2025 7:38 pm
FJ
 FJ
(@brs)
Noble Member Customer
Posted by: @azzido

Unsealing and reading eeprom should not affect the functionality of the chip.

unseal was successful, reading returned error.

then tried to clear chip errors. during that process "error" appeared and then reading was abnormal.

ReplyQuote
Topic starter Posted : 13/01/2025 10:15 am
Page 1 / 2
Share: