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Aktuelle Version von: jayeff ,

Text:

Hi @jafinch78 ,
 
Try disconnecting both the internal and external batteries and see if it starts just on the AC power.
 
Here’s a link to the [https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/x240_hmm_en_sp40a26001.pdf|service manual] for the laptop.
 
Scroll to the bottom of p.60 to view the necessary pre-requisite steps and then the procedure to remove the internal battery. You should only have to disconnect it, not actually remove it.
 
The manual also mentions an Emergency reset button hole in the Power system checkout on p.26 which you may have to operate as well to get things started.
 
Also try removing the coin cell battery p.73 for a while (15-20 minutes - can’t find RTC reset pins) to allow it to get back to default BIOS settings in case they’re corrupted. (Check its’ voltage as well as it may also be flat and if it is as it non rechargeable it will have to be replaced).
 
If you remove the RAM and the SSD does it behave differently when trying to start?
If you remove the RAM and the SSD does it behave differently when trying to start?
 
If you can’t get it going at all, what was its’ working condition described as, when you bought it? Working but missing parts etc or “As is”, because if it’s a faulty systemboard you may have problems...

Status:

open

Bearbeitet von: jayeff ,

Text:

Hi @jafinch78 ,
 
Try disconnecting both the internal and external batteries and see if it starts just on the AC power.
 
Here’s a link to the [https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/x240_hmm_en_sp40a26001.pdf|service manual] for the laptop.
 
Scroll to the bottom of p.60 to view the necessary pre-requisite steps and then the procedure to remove the internal battery. You should only have to disconnect it, not actually remove it.
Scroll to the bottom of p.60 to view the necessary pre-requisite steps and then the procedure to remove the internal battery. You should only have to disconnect it, not actually remove it.
 
The manual also mentions an Emergency reset button hole in the Power system checkout on p.26 which you may have to operate as well to get things started.
 
Also try removing the coin cell battery p.73 for a while (15-20 minutes - can’t find RTC reset pins) to allow it to get back to default BIOS settings in case they’re corrupted. (Check its’ voltage as well as it may also be flat and if it is as it non rechargeable it will have to be replaced).
 
If you remove the RAM does it behave differently when trying to start?
 
If you can’t get it going at all, what was its’ working condition described as, when you bought it? Working but missing parts etc or “As is”, because if it’s a faulty systemboard you may have problems...

Status:

open

Bearbeitet von: jayeff ,

Text:

Hi @jafinch78 ,
 
Try disconnecting both the internal and external batteries and see if it starts just on the AC power.
 
Here’s a link to the [https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/x240_hmm_en_sp40a26001.pdf|service manual] for the laptop.
 
Scroll to the bottom of p.60 to view the necessary pre-requisite steps and then the procedure to remove the internal battery.
 
The manual also mentions an Emergency reset button hole in the Power system checkout on p.26 which you may have to operate as well to get things started.
 
Also try removing the coin cell battery p.73 for a while (15-20 minutes - can’t find RTC reset pins) to allow it to get back to default BIOS settings in case they’re corrupted. (Check its’ voltage as well as it may also be flat and if it is as it non rechargeable it will have to be replaced).
 
If you can’t get it going at all, what was its’ working condition described asas, when you bought it? Working but missing parts etc or “As is”, because if its’it’s a faulty systemboard you may have problems...
If you can’t get it going at all, what was its’ working condition described asas, when you bought it? Working but missing parts etc or “As is”, because if its’it’s a faulty systemboard you may have problems...

Status:

open

Ursprünglicher Beitrag von: jayeff ,

Text:

Hi @jafinch78 ,

Try disconnecting both the internal and external batteries and see if it starts just on the AC power.

Here’s a link to the [https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/x240_hmm_en_sp40a26001.pdf|service manual] for the laptop.

Scroll to the bottom of p.60 to view the necessary pre-requisite steps and then the procedure to remove the internal battery.

The manual also mentions an Emergency reset button hole in the Power system checkout on p.26 which you may have to operate as well to get things started.

Also try removing the coin cell battery  p.73 for a while (15-20 minutes - can’t find RTC reset pins) to allow it to get back to default BIOS settings in case they’re corrupted. (Check its’ voltage as well as it may also be flat and if it is as it non rechargeable it will have to be replaced).

If you can’t get it going at all, what was its’ working condition described as when you bought it? Working but missing parts etc or “As is”, because if its’ a faulty systemboard you may have problems...

Status:

open