Chosen Solution
Hi, Model is X0Q77ES, 250GB SSD, Model 250 G5 What I’ve tried so far; Windows Key+B and Windows key+V BIOS and CMOS resets. Didn’t work, fan whirred then stopped, then caps lock blinks. Have to remove battery to stop thisCreated BIOS recovery USB from HP Support. Inserted in USB, tried turning on normally and then turning on with WK+B held down. Same result as previousWent through HP virtual assistance confirming AC adaptor works etc. Have ended up fairly confident this is a major hardware fault and now requires investigation. On reading, I’ve picked up from various webpages that the ram or hard drive could be the problem. Found a few answers in ifixit about rotating ram, gpu reset with hairdryer etc. etc, but nothing exactly the same as my issue, so figured I’d put this out there to the experienced users and ask for help. I’ve been around computers a long time and happy to take things apart, but a novice with laptops and need some guidance for next steps please. Thanks Harvey
Hi @hkuk2020 , Is there a pattern to the Caps lock light blinking i.e count the number of blinks before it pauses and then repeats ? If there is one, use this link to find out what the pattern means. For your model scroll down to Computers released between, before 2015 (I think). Here’s the maintenance and service guide for the laptop in case you need to dis-assemble it to gain access to anything. It details the pre-requisite steps and then the procedures to remove/replace all the components. It also has the part numbers if you need to replace any. Just search online using the part number only in the search term of your browser to get results for suppliers
i had the same problem. it so happened that one of my ram chips was faulty so i just did a replacement and the laptop hasn’t given the problem since
