Cassiel

Ok i will later.

No one knows how my laptop got fixed In service they said its unfixable (is it even a word?) but when i recived it back and tried to turn it on it worked. I heard that they replaced CPU with working one for a while, maybe it helped.

Hey, can someone with experience look at my CPU temps??

Gyazo - 33f28908cab653a1660a6c2354ef72b8.png

Its really weird because i wasn't even stressing my CPU and temperature went to 100

Is it safe? I mean constant speeding up and down?

They refused to honor my warrenty when i told them I tried to flash their bios from their website and they said it is a user error instead. Still fighting them on that, but in the mean time i might as well try to see if i can get it to work for now. It seems that people just have theirs start working again randomly so im trying to see if i can somehow get it to work with some key presses or just trying different power states and combinations, etc. Dont want to take it apart in case I can get them to honor my warrenty and then they return it due to seals broken or something.

I still think its waste of time (i tried everything i could, even changing bios chip)

But, when i called to Lenovo there were 3 different people serving me, each other did know my case so if you would call again to Lenovo, probably new guy will talk to you, and you would tell him that your y510p is just not turning on. Of course if they did not remember you or sth

undervolting in bios.

Oh well, in that case do you have warranty? if yes, send your y510p to lenovo

If you do not have warranty (that's really odd, but it happens) or u had broken your warranty seals , then... hmm... in my case (i don't have warranty, soo) computer service told that CPU is damaged and they cannot fix it, imagine my suprise when my y510p turned ON after it came back from them I don't know what fixed it, maybe replacing CPU to another laptop restored sth, i also heard that they restored original "power" on motherboard but it did not help...

Anyway, if you have warranty, send it immediately to Lenovo, else you will be wasting your time like i did

just tried it and nothing happened. i did figure out that a usb hard drive will spin up and i noticed that my ssd enclosure works where as a regular usb stick doesnt power on at all. i might try the method in post 5 too rewrite the bios through usb.

What exactly did you do? Undervolting in Bios? Error while flashing?

@Cassiel: That's great news. Do you still have the old bios? That's the best way to know.

Hmm, yes i have 2.04 again. But other computer service already changed bios (even bios chip) and it did not help, sooo.

Maybe replacing CPU helped when they tested it on another laptop.

WHAAAAAA!!!

My lenovo is working !!!

No one knows why :DDD

In service they said that its impossible to repair it cause CPU is damaged

Today y510p arrived, i turned it on and BUM ITS FKING WORKING !!

Praise the lord

My case is even funnier Today i found out that Lenovo knows nothing about my y510p (only country of origin= Holand).. and they can't register my warranty yet:D so now i need to wait for shop, where i bought y510p (some import seller) to give me their invoice as a proof or sth.. what a mess

and final: i was using this laptop for 1 (one) week

im gonna cry now

cheers guys

If someone would like to know, my CPU is "dead" (they tested it on another laptop). So, do not undervolt via BIOS

So, private service didnt fix my lenovo y510p:D

Do any of u know, if lenovo varranty service will fix it, since it doesnt have any lenovo varranty seals? It was like that since i bought it i think..

@xlimelight, that doesn't always work (at least it didn't in my case) but thanks for the link.

So, do u know exactly what was the cause? Im still waiting for laptop service

Hello all, i couldn't be sure if this was the right thread to ask about this issue, but I failed to find any other populated one. I have regularly installed the v3.05 bios (that was published in Lenovo's own site) to my Y510p, it seemed that the installation progress was successfull; but right after that, it tried to reboot the system, and then it started rebooting without even showing anything on screen. Power button light and keyboard led flashes, and then it reboots. (here is a similar issue reported on forum; Bricked Y510P Bios Failure after update to 3.05 - Lenovo Community) I can not access the bios. I would appreciate any help or advice, thank you.

Hahaha another one

Anyway, i will know exact cause soon, week maybe. Stay tuned :>

haha that's hilarious

now everybody has bricked y510p

and i do not have registered warranty yet

Ditto, I finally got to see my laptop and the service paper say they "replaced the bios" so I am not sure if that means the chip or the firmware. Either way I would HIGHLY recommend not trying to change the CPU voltage offset with the unlocked bios and stick to XTU instead.

I also can't believe they actually did the work under warranty (no charge) after I ripped the motherboard out and de-soldered the battery.

Great to hear that, since i was afraid that my CPU is damaged

Well, i do not recommend changing Vcore voltage offset, because since i did it, i have blank screen all the time . Dunno why, but changing bios chip did not help, still looking for cause.

Cheers

It should be packed bios CMOS battery. Is it movable at all? No damage by moving it except if it somehow non-movable. It must be packed in plastic as a lot of those batteries are. Note if you remove the battery, you must remove it for 20-30 minutes at least to reset BIOS.

this battery is "hanging" on "metal connection aka solid wire". I dont know how to remove only battery from this mysterous thing :|.

Btw. I shorted these 2 cmos pins, and now even keyboard is not lighting and i cant shut it down without removing laptop battery.

Hi again guys.

I found this on my motherboard:

imgur: the simple image sharer

imgur: the simple image sharer

what now? im afraid that i may cause some damage to this "violet battery" by moving it, (is it even battery ? )

Its 750M or 755M issue?

755m, tommorow i will try to remove cmos battery to reset bios. Any idea where is it ? I mean, is it easy to reach or i have to dig deep into lenovo's hardware?

Hello.

So here's the thing. I flashed your modded bios 3.5 for y510p, and it was working. But only for one gpu, and i was reading that SLI users have to flash ultrabay gpu too. So i did it. Without any error. Then i went to bios to check these new options and i undervolted cpu (-65). Then i saved changes, and i exit bios. After reboot, screen was black (like no light at all), my mouse and pendrive didnt light, only keyboard and power button was lighting. And i felt warm air from fans, after some time it was more warm.

I hope i explained it well, and i am truly asking you for some help. I would really appreciate it.

Regards,

Cassiel.