Try disconnecting the main battery and the coin cell battery in the laptop and then press and hold the laptop's Power On button for a ''full 30 seconds'' and then release it.
Here's the [link|https://download.lenovo.com/pccbbs/mobiles_pdf/x1_carbon_6thgen_hmm_en.pdf|hardware maintenance manual] for the laptop. Go to p.70 and p.78 to view the ''necessary pre-requisite steps'' and then the procedure to remove the battery and the coin cell battery respectively..
Whilst you have the coin cell battery out, measure its voltage. If it is <2.5V DC replace it. The part number for the coin cell battery is ''01HY008.'' Search online using the ''part number only'' in the search box of your browser, to find suppliers that suit you best.
Reconnect the coin cell battery and the main battery, re-assemble the laptop, connect the charger and try turning it on.
If it turns on there ''may'' be a message about the date and time being incorrect. This is normal as the BIOS has been reset to its factory default settings. Once the date and time have been corrected the message won't appear the next time the laptop is started. Also if you altered any user definable settings in BIOS to suit your particular operating requirements they will have to be set again.
=== Update (05/05/2022) ===
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@mrbuuuffed2
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You just measure across the red and black wires. If the plug is narrow sometimes inserting thin wires into the plug and then connecting to them works.
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You just measure across the coin cell battery plug's red and black wires. If the plug is narrow sometimes inserting thin wires into the plug and then connecting to them works.
Although this battery is not the problem now, as performing the refresh should have reset the BIOS if it were a corrupted BIOS problem that you're having with the laptop and it should have started.
I'm now wondering if you have a faulty power on button.
***''IF the motherboard is model number''*** NM-B481 REV: 1.0 (printed on motherboard) then here's an image of the lid switch connection.
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Use an Ohmmeter to check that when pressed there is an earth on pin 3 and that it is not there when the button is not pressed i.e. sticking contacts perhaps.
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Use an Ohmmeter to check that when pressed there is an earth on pin 3 and that it is not there when the button is not pressed i.e. sticking contacts perhaps. Disconnect the battery when trying this
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If it is OK then here's a link to the [https://www.alisaler.com/lenovo-x1-carbon-lcfc-yoda-2-nm-b48-schematic/|schematics] that may help. Again this is only applicable if the motherboard's model number is the same as for your motherboard
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If it is OK then here's a link to the [link|https://www.alisaler.com/lenovo-x1-carbon-lcfc-yoda-2-nm-b48-schematic/|schematics] that may help. ''Again this is only applicable if the motherboard's model number is the same as for your motherboard. If not what is the model number of your motherboard?''
Try disconnecting the main battery and the coin cell battery in the laptop and then press and hold the laptop's Power On button for a ''full 30 seconds'' and then release it.
Here's the [link|https://download.lenovo.com/pccbbs/mobiles_pdf/x1_carbon_6thgen_hmm_en.pdf|hardware maintenance manual] for the laptop. Go to p.70 and p.78 to view the ''necessary pre-requisite steps'' and then the procedure to remove the battery and the coin cell battery respectively..
Whilst you have the coin cell battery out, measure its voltage. If it is <2.5V DC replace it. The part number for the coin cell battery is ''01HY008.'' Search online using the ''part number only'' in the search box of your browser, to find suppliers that suit you best.
Reconnect the coin cell battery and the main battery, re-assemble the laptop, connect the charger and try turning it on.
If it turns on there ''may'' be a message about the date and time being incorrect. This is normal as the BIOS has been reset to its factory default settings. Once the date and time have been corrected the message won't appear the next time the laptop is started. Also if you altered any user definable settings in BIOS to suit your particular operating requirements they will have to be set again.
+
+
=== Update (05/05/2022) ===
+
+
@mrbuuuffed2
+
+
You just measure across the red and black wires. If the plug is narrow sometimes inserting thin wires into the plug and then connecting to them works.
+
+
Although this battery is not the problem now, as performing the refresh should have reset the BIOS if it were a corrupted BIOS problem that you're having with the laptop and it should have started.
+
+
I'm now wondering if you have a faulty power on button.
+
+
***''IF the motherboard is model number''*** NM-B481 REV: 1.0 (printed on motherboard) then here's an image of the lid switch connection.
+
+
Use an Ohmmeter to check that when pressed there is an earth on pin 3 and that it is not there when the button is not pressed i.e. sticking contacts perhaps.
+
+
If it is OK then here's a link to the [https://www.alisaler.com/lenovo-x1-carbon-lcfc-yoda-2-nm-b48-schematic/|schematics] that may help. Again this is only applicable if the motherboard's model number is the same as for your motherboard
Try disconnecting the main battery and the coin cell battery in the laptop and then press and hold the laptop's Power On button for a ''full 30 seconds'' and then release it.
-
Here's the [https://download.lenovo.com/pccbbs/mobiles_pdf/x1_carbon_6thgen_hmm_en.pdf|hardware maintenance manual] for the laptop. Go to p.70 and p.78 to view the ''necessary pre-requisite steps'' and then the procedure to remove the battery and the coin cell battery respectively..
+
Here's the [link|https://download.lenovo.com/pccbbs/mobiles_pdf/x1_carbon_6thgen_hmm_en.pdf|hardware maintenance manual] for the laptop. Go to p.70 and p.78 to view the ''necessary pre-requisite steps'' and then the procedure to remove the battery and the coin cell battery respectively..
Whilst you have the coin cell battery out, measure its voltage. If it is <2.5V DC replace it. The part number for the coin cell battery is ''01HY008.'' Search online using the ''part number only'' in the search box of your browser, to find suppliers that suit you best.
Reconnect the coin cell battery and the main battery, re-assemble the laptop, connect the charger and try turning it on.
-
If it turns on there ''may'' be a message about the date and time being incorrect. This is normal as the BIOS has been reset to its factory default settings. Once the date and time have been corrected the message won't appear the next time the laptop is started. Also if you altered any user defined settings in BIOS to suit your particular operating requirements they will have to be set again.
+
If it turns on there ''may'' be a message about the date and time being incorrect. This is normal as the BIOS has been reset to its factory default settings. Once the date and time have been corrected the message won't appear the next time the laptop is started. Also if you altered any user definable settings in BIOS to suit your particular operating requirements they will have to be set again.
Hi @mrbuuuffed ,
Try disconnecting the main battery and the coin cell battery in the laptop and then press and hold the laptop's Power On button for a ''full 30 seconds'' and then release it.
Here's the [https://download.lenovo.com/pccbbs/mobiles_pdf/x1_carbon_6thgen_hmm_en.pdf|hardware maintenance manual] for the laptop. Go to p.70 and p.78 to view the ''necessary pre-requisite steps'' and then the procedure to remove the battery and the coin cell battery respectively..
Whilst you have the coin cell battery out, measure its voltage. If it is <2.5V DC replace it. The part number for the coin cell battery is ''01HY008.'' Search online using the ''part number only'' in the search box of your browser, to find suppliers that suit you best.
Reconnect the coin cell battery and the main battery, re-assemble the laptop, connect the charger and try turning it on.
If it turns on there ''may'' be a message about the date and time being incorrect. This is normal as the BIOS has been reset to its factory default settings. Once the date and time have been corrected the message won't appear the next time the laptop is started. Also if you altered any user defined settings in BIOS to suit your particular operating requirements they will have to be set again.