Try a full power refresh in case the BIOS has become corrupted and is preventing a normal start i.e the laptop is not passing POST (Power On Self Test)
Here’s the procedure:
***a).*** Disconnect the charger if connected.
***b).*** Disassemble the laptop, disconnect/remove the main battery and disconnect the cmos battery. Here’s the [link|https://download.lenovo.com/consumer/mobiles_pub/ideapad120s-11iap_120s-14iap_hmm_201707.pdf p51|hardware maintenance manual] for the laptop. Go to p.71 to see the procedure to get to the cmos battery so it can be disconnected. When the cmos battery is removed from the laptop, use a DMM (voltmeter function) to measure the battery’s voltage. If it is <2.6V DC or >4-5 years old replace it. Search online for ''5B10P18554'' to find suppliers that suit you best.
***c).*** ''Press and hold the laptop’s Power on button for 30 seconds and then release''.
***d).*** Reinsert/reconnect the cmos battery (or replacement battery) and reconnect the battery
***e)***. Reassemble the laptop and connect the charger.
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***f).*** Switch on the laptop and check if it starts OK. There may be a message on the screen about the date and time being incorrect. This is normal as the BIOS has been reset. Once the date and time have been corrected, the message won’t appear the next time that the laptop is started. Any user definable BIOS settings that were changed by you to suit whatever operating requirements you wanted, will have to be changed back again as well
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***f).*** Switch on the laptop and check if it starts OK. There may be a message on the screen about the date and time being incorrect. This is normal as the BIOS has been reset. Once the date and time have been corrected, the message won’t appear the next time that the laptop is started.
Hi @vernielbronola
Try a full power refresh in case the BIOS has become corrupted and is preventing a normal start i.e the laptop is not passing POST (Power On Self Test)
Here’s the procedure:
***a).*** Disconnect the charger if connected.
***b).*** Disassemble the laptop, disconnect/remove the main battery and disconnect the cmos battery. Here’s the [link|https://download.lenovo.com/consumer/mobiles_pub/ideapad120s-11iap_120s-14iap_hmm_201707.pdf p51|hardware maintenance manual] for the laptop. Go to p.71 to see the procedure to get to the cmos battery so it can be disconnected. When the cmos battery is removed from the laptop, use a DMM (voltmeter function) to measure the battery’s voltage. If it is <2.6V DC or >4-5 years old replace it. Search online for ''5B10P18554'' to find suppliers that suit you best.
***c).*** ''Press and hold the laptop’s Power on button for 30 seconds and then release''.
***d).*** Reinsert/reconnect the cmos battery (or replacement battery) and reconnect the battery
***e)***. Reassemble the laptop and connect the charger.
***f).*** Switch on the laptop and check if it starts OK. There may be a message on the screen about the date and time being incorrect. This is normal as the BIOS has been reset. Once the date and time have been corrected, the message won’t appear the next time that the laptop is started. Any user definable BIOS settings that were changed by you to suit whatever operating requirements you wanted, will have to be changed back again as well