- Sep 3, 2015
- 7
- 0
- 4,510
My partner has a Laptop (Toshiba L50-B PTSKNA 02RO16). MB numbers are dablidmb8e0 rev e, no markings about who makes it that I can see.
It came with Win8.1, which at some point she got tired of the nag screen and allowed it to update to Win 10. It ran fine for ages (long long time) until recently the machine was running a little slow and had dropped its AMD graphics driver. I decided to do to a factory reset for her. However in all avenues of repair/restore etc when it offered an OS option, the only option was Win 10, there was no option to factory reset the machine to how it came from the factory (8.1). And when i went to use the inbuilt recovery partitions it said there was an error with the partition. So I could do nothing.
I had Win 10 ISO from MS already burnt to disc, and went about a fresh install of Win 10. It seemed to start doing a fresh install fine, I walked off to let it do its thing and came back maybe 1/2 an hour later to a black screen and no lights. I tapped the space bar, a couple of keys, waited to see if it was just doping something else but nothing changed. I assumed it finished and shut down. But no.
When I hit the power button I get its usual white light around it, and a few green lights on the kb, they all flash 5 times then all is dead. And even when the lights are flashing there are no sounds at all (no hdd, fan, disc drive etc). Every now and then I have to pull the battery to get it to even do that, as the power button does nothing. Refit battery and its back to 5 flashes of lights then dead.
AM I right in assuming the bios is not starting? If it is the BIOS failing to start, how do I go about flashing BIOS data? I read some MoBos no longer use CMOS batteries, instead storing the data somewhere, Im not sure how that works I thought BIOS was the basics before more complex stuff was loaded. Ive had the back off, and lifted the MB but I cant locate a CMOS battery, or a BIOS chip for that matter.
I think it has Insyde BIOS, at least the DL from Toshiba when I run it in some software designed to ID BIOS, one result says Insyde, and the other test progs for AMI Pheonix etc say its not theirs.
It came with Win8.1, which at some point she got tired of the nag screen and allowed it to update to Win 10. It ran fine for ages (long long time) until recently the machine was running a little slow and had dropped its AMD graphics driver. I decided to do to a factory reset for her. However in all avenues of repair/restore etc when it offered an OS option, the only option was Win 10, there was no option to factory reset the machine to how it came from the factory (8.1). And when i went to use the inbuilt recovery partitions it said there was an error with the partition. So I could do nothing.
I had Win 10 ISO from MS already burnt to disc, and went about a fresh install of Win 10. It seemed to start doing a fresh install fine, I walked off to let it do its thing and came back maybe 1/2 an hour later to a black screen and no lights. I tapped the space bar, a couple of keys, waited to see if it was just doping something else but nothing changed. I assumed it finished and shut down. But no.
When I hit the power button I get its usual white light around it, and a few green lights on the kb, they all flash 5 times then all is dead. And even when the lights are flashing there are no sounds at all (no hdd, fan, disc drive etc). Every now and then I have to pull the battery to get it to even do that, as the power button does nothing. Refit battery and its back to 5 flashes of lights then dead.
AM I right in assuming the bios is not starting? If it is the BIOS failing to start, how do I go about flashing BIOS data? I read some MoBos no longer use CMOS batteries, instead storing the data somewhere, Im not sure how that works I thought BIOS was the basics before more complex stuff was loaded. Ive had the back off, and lifted the MB but I cant locate a CMOS battery, or a BIOS chip for that matter.
I think it has Insyde BIOS, at least the DL from Toshiba when I run it in some software designed to ID BIOS, one result says Insyde, and the other test progs for AMI Pheonix etc say its not theirs.
Facebook
Twitter
Instagram