Go to ''Config > Power'' to view the sub menu disable/enable built in battery
I realize that you have performed a power reset but maybe try a full power refresh in case it is a corrupted BIOS and check if that resolves the problem.
Here’s the procedure:
a). Disconnect the charger from the laptop if connected.
b). Open the laptop and disconnect the main battery from the motherboard.
c). Remove the RTC coin cell battery (aka cmos battery) from the motherboard.
Here’s the [link|https://download.lenovo.com/pccbbs/mobiles_pdf/t460_hmm_en_sp40k04896_03.pdf|hardware maintenance manual] for the laptop. Go to p.74 and p.75 to view the the procedure to remove main battery and the RTC coin cell battery.
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When the RTC battery is removed measure its voltage. If it is <2.6V DC replace it. The part number for the battery is 02K7078 or 04W1642 (there are a lot more but these two should find suppliers). Search online using the ''part number only'' to find suppliers that suit you best
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When the RTC battery is removed measure its voltage. If it is <2.6V DC replace it. The part number for the battery is 02K7078 or 04W1642 (there are a lot more but one of these two should find suppliers). Search online using the ''part number only'' to find suppliers that suit you best
d). ''Press and hold the laptop's Power button for a full 30 seconds and then release it.''
e.) Reconnect the RTC battery (or its replacement).
f). Reconnect the main battery and reassemble the laptop.
When the laptop is completely re-assembled, connect the charger and try to turn on the laptop.
If it starts OK there may be a message about the date and time being incorrect. This is normal as the BIOS has been completely reset back to its default settings. Once the date and time have been adjusted the message won’t appear the next time that the laptop is started.
If you had previously changed any user defined settings in BIOS to suit whatever specific hardware configuration that you had for the laptop, then these will have to be set again.
Hi @neddanmaion
Check if the battery has been disabled in BIOS.
Go to ''Config > Power'' to view the sub menu disable/enable built in battery
I realize that you have performed a power reset but maybe try a full power refresh in case it is a corrupted BIOS and check if that resolves the problem.
Here’s the procedure:
a). Disconnect the charger from the laptop if connected.
b). Open the laptop and disconnect the main battery from the motherboard.
c). Remove the RTC coin cell battery (aka cmos battery) from the motherboard.
Here’s the [link|https://download.lenovo.com/pccbbs/mobiles_pdf/t460_hmm_en_sp40k04896_03.pdf|hardware maintenance manual] for the laptop. Go to p.74 and p.75 to view the the procedure to remove main battery and the RTC coin cell battery.
When the RTC battery is removed measure its voltage. If it is <2.6V DC replace it. The part number for the battery is 02K7078 or 04W1642 (there are a lot more but these two should find suppliers). Search online using the ''part number only'' to find suppliers that suit you best
d). ''Press and hold the laptop's Power button for a full 30 seconds and then release it.''
e.) Reconnect the RTC battery (or its replacement).
f). Reconnect the main battery and reassemble the laptop.
When the laptop is completely re-assembled, connect the charger and try to turn on the laptop.
If it starts OK there may be a message about the date and time being incorrect. This is normal as the BIOS has been completely reset back to its default settings. Once the date and time have been adjusted the message won’t appear the next time that the laptop is started.
If you had previously changed any user defined settings in BIOS to suit whatever specific hardware configuration that you had for the laptop, then these will have to be set again.