Remote Reset Request - LENOVO L20L3PF0 - Laptop Battery Chip Reset, Reprogram and Repair

RE: Remote Reset Request - LENOVO L20L3PF0

Raul Osorio — Mon, 03 Nov 2025 21:10:36 +0000

Thanks! I happy, all works fine! Now have a 10 battery 100% health and cell full capacity. Thanks!

RE: Remote Reset Request - LENOVO L20L3PF0

loliconic — Mon, 03 Nov 2025 13:50:57 +0000

@rau-osorio

Yes, you can try to search for the value you want to change in the EEPROM.

I suggest you change one value at a time, then upload the EEPROM, then see if the value changed.

RE: Remote Reset Request - LENOVO L20L3PF0

Raul Osorio — Sat, 01 Nov 2025 18:01:25 +0000

I finally managed to unlock the battery, but I used firmware from another battery that had the same health and charge cycles. Is it possible to edit the firmware I used with the data from the locked battery, for example, the serial number? The unlocking process was actually very quick and easy using the other firmware. Thanks for your answers and help.

RE: Remote Reset Request - LENOVO L20L3PF0

Raul Osorio — Fri, 31 Oct 2025 22:39:31 +0000

@tracker135n9 Thanks, i think i do it, but i will do again, but first test the chip A045A20 and pit the results!

RE: Remote Reset Request - LENOVO L20L3PF0

tracker135n9 — Fri, 31 Oct 2025 20:12:40 +0000

Having in view chip was not detected by the software, feel free to submit chip name to the server using appropriate orange button on BatInfo page.

RE: Remote Reset Request - LENOVO L20L3PF0

loliconic — Fri, 31 Oct 2025 12:15:19 +0000

@rau-osorio

Try to unseal it by using the 045A20 from the chip menu on the reset tab.

RE: Remote Reset Request - LENOVO L20L3PF0

Raul Osorio — Fri, 31 Oct 2025 11:29:30 +0000

@loliconic 10 Battery restored. 8 Operational and working ok and 2 Locked yet, but i hope today unlock, i have a reset licence, but seems the chips is not supported (047A20).

¿I can use eproom file from another battery? If i cant unlock?

I do every steps, but still locked, maybe i do something wrong. Today i will try. If you can give me a tips, thanks in advance!

RE: Remote Reset Request - LENOVO L20L3PF0

loliconic — Fri, 31 Oct 2025 06:32:33 +0000

@rau-osorio

Welcome!

Have you restored them or replaced them?

RE: Remote Reset Request - LENOVO L20L3PF0

Raul Osorio — Thu, 30 Oct 2025 23:24:51 +0000

😒

23513

@loliconic Friend, I was very lucky; not all the batteries were clearly visible, but I managed to photograph one. I hope this helps. Without this forum and the help of its members, it would have been much harder to solve this.

Just a buy 10 fuse in Ali jojojo 😒

RE: Remote Reset Request - LENOVO L20L3PF0

Raul Osorio — Thu, 30 Oct 2025 23:09:38 +0000

😎 @loliconic My dear friend, I must say your help was invaluable. It worked perfectly! I'm very grateful for the help and the forum. The fuse is like a connection with a little cap! I just needed to add a bit of flux and solder at 150 degrees, and that's it, problem solved. It's strange that the 10 batteries I received had 5 cycles, were in perfect working order, and all had the same problem. Poor quality from the manufacturer, Leno***? The batteries are brand new! 2024. Again, thank you so much, my friend, and I hope this experience helps others! Thanks! 😎 😎