Can you help me reset this chip. I still can not read the EEPROM with EV2300. I have revelled it with identical cells, but is locked.
I still can not read the EEPROM with EV2300
How are you planning to read the eeprom?
What is the chip here?
but is locked
Post screenshot.
One chip is 24c02, the other 82544A. I am trying to read it with EV2300 on I2C protocol with a demo software but without success. In case it is possible I could also try to read it with an Arduino. I said it is locked because there is no voltage between battery ground and VCC pins, also after shorting VCC and B+.
I am trying to read it with EV2300 on I2C protocol
Why I2C? 24C02 is a standart SMBus compatible eeprom.
The best way to read it is to desolder it from the board and use usb eeprom reader.
Post screenshot from NLBA battery info tab.
@torture I could not read it with NLBA. May be I am not connecting it the right way, but I tried all possible combinations.
One chip is 24c02, the other 82544A
If these are the only 2 chips on the PCB it's normal that you don't get any readings because S-825A4 is just a protection IC.
This configuration is similar to some Toshiba pcb's where there is only eeprom chip on the pcb and the actual microcontroller is on the laptop motherboard.
I have checked the dump and the layout is not standart so i have no idea where are the values stored.
The only way to make sure that the battery is working or not is to try it in laptop.
Maybe it has SP pin, maybe it also needs 5v on some pin to power on the 24C02 eeprom.
Have you checked the fuse?
I have never worked with this battery model before.
@torture yes, I have checked the fuse and it was blown, I have replaced it but still there is not contact between b+ and vcc
So you have the laptop to check or not?
@torture I have got the laptop from the customer, and it works! Thanks
You can read some data from the battery with AIDA64 or BATTERYINFOVIEW.
@torture As I see FCC is changing as I use it so I thing it is useless to change it in EEProm?
Latest Post: Asus A32F52 battery has 0V cell 3 voltage after replacing old cells Our newest member: Nazir Ahmed Khwaja Recent Posts Unread Posts
