I have a battery from a Lenovo X13 Yoga Gen 2:
The battery seems to be quite new, only 93 cycles, and it is charged, the cells have 3.7V, but it is locked:
Unfortunately a reset is not possible, because the chip is not detected:
Is there anything I can do to revive the battery?
The very first step to unlock any battery is to detect the chip.
It could be done in three ways
1. Using NLBA1 software
2. Visual PCB inspection
3. Remote detection
Method 1 did not work. It could be for two reasons
- battery is of new model, it has new chip and not available in database
- battery is aftermarket copy, so it has fake not supported chip
You still could try method 2 or 3.
Because I don't know, how to do a remote detection, I went with method 2.
I think this explains, why the chip is not detected and why and will never be detected ...
Because I don't know, how to do a remote detection,
It could be done if you have ev2300, ev2400 or ez-usb adapter.
this explains, why the chip is not detected
Do you think it is damaged ?..
Defective chips typically have communication issues and could not be read. But its not the case as long as you managed to read it on BatInfo page.
Go to Reset tab, start New Reset, press Next. Select 045A20 from drop-down chip list, LGC from firmware list, press Next.
Then press Unseal button. Press ReadChipInfo button. Paste picture.
interesting. I was interpreting the whole as a burn whole. Here is the requested picture:
It looks like this chip has custom firmware. Paste full picture of the pcb to check if it is genuine.
Do you have ev2300, ev2400 or ezusb ?..
yes, I have a cheap EV2400 clone. Using the NLBA SW I can connect to this EV2400, but reading gives no results because there is no "Power On" option.
Connect temporary jumper from VH pad to Pack+ pin on the connector like shown on the picture. Then try to read battery with ev2400 clone. This trick is used to wake up the chip.
I connected the battery with the EV2400. I then shortly made the connection as shown in the picture above. The NLBA SW was immediately disconnected from the EV2400 and a Windows message popped up, telling me something about a surge at an USB Port.
??
Try this sequence
1. Jumper connection
2. Smbus connection
3. Usb cable connection
this is my setup
ok, using the specified order there was no error message about surges but pressing "Read All Once" gives no result.
I had to switch SDA and SCL, now I do get the same readings as above with the NLBA.
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