Thinkpads Forum

Hi all,

I have flashed a WL-free BIOS (http://rgho.st/45774169) from Serg008 to my T410 2537-DA3. I had the latest factory BIOS before. Flash was successful, i disabled the TPM because the beeps at startup.
Then i realized, that i cannot read CPU speed from the OS (Ubuntu), and the battery isn't charging.
I can see on the indicator, when it is inserted or not, but no charging. I installed TLP, started a calibration, but it only discharged the battery, and charging is not working. (Or if it is working, BIOS does not see what charging circuit is doing.)
EC ROM is 1.18, in addition.

I tried to flash factory BIOS, but it cannot be done with 0% battery. I'm afraid to flash FL1 and FL2, as i have two FL2 files extracted from factory flash.

Have someone seen a bug like this before? Can someone tell me how to flash FL1 and two FL2's (and .PAT files) with Winphlash? Or force the boot CD image to update?

Thanks in advance

Since then, i flashed back the factory BIOS, but no charge appeared; CPU speed control is OK (charged battery) but if i plug out the power cord, it says it is on external power. If i put the machine in sleep mode, and pull out the power plug, the battery icon lights.

ColT wrote:Hi all,

I have flashed a WL-free BIOS (http://rgho.st/45774169) from Serg008 to my T410 2537-DA3. I had the latest factory BIOS before. Flash was successful, i disabled the TPM because the beeps at startup.
Then i realized, that i cannot read CPU speed from the OS (Ubuntu), and the battery isn't charging.
I can see on the indicator, when it is inserted or not, but no charging. I installed TLP, started a calibration, but it only discharged the battery, and charging is not working. (Or if it is working, BIOS does not see what charging circuit is doing.)
EC ROM is 1.18, in addition.

I tried to flash factory BIOS, but it cannot be done with 0% battery. I'm afraid to flash FL1 and FL2, as i have two FL2 files extracted from factory flash.

Have someone seen a bug like this before? Can someone tell me how to flash FL1 and two FL2's (and .PAT files) with Winphlash? Or force the boot CD image to update?

Thanks in advance

can someone help this fellow..?
i have little experience messing with any non-factory bios..

i thought there was a way to fool the bios into thinking the battery was 100% and was plugged into the AC..

BillMorrow wrote:can someone help this fellow..?
i have little experience messing with any non-factory bios..

i thought there was a way to fool the bios into thinking the battery was 100% and was plugged into the AC..

Hi,

Since then, i have a charged battery, and reflashed factory bios with IBM update tool. No charge, but now machine thinks it is always on external power.


Does anyone know how to reflash ECP part of bios, which is trsponsible for charging? It's suspicious that the issue is caused by this.

Thanks