Did i just kill my 5 day old MK808???

[Abducted]

Hey folks!

Long story short: Placed a heatsink on my (5 day old ) MK808. Everything went smooth. Device booted, after a while during the Finless MK808 (moving) boot screen it just crashed, no more signal to monitor and that was it.

The first thing i thought that maybe the heatsink wasn't seated correctly and maybe wasnt touching the SOC at all and it just died from overheating. But when i took it apart again the heatsink made perfect contact.

I know these thing are pretty much unbrickable, but now the blue led doesn't even turn on... That's bad right?

So somebody tell me this is fixable and how to do it!

Already tested different PSU, different USB cable. And tried booting it into flashmode or recovery mode. But like i said, the blue led doesn't even turn on...

[Finless]

The blue LED does not light in flash mode so does the PC see it? If not I am afraid it's done.

One thing to do... I assume you used thermal paste? Some thermal pastes are conductive like Artic Silver.
Make sure none of it oozed out and contacted any of the processor pins or on the board.
If you used thermal epoxy that might be hard to get off the pins but maybe some chipping at it with an Xacto blade if you did.

Just an idea.

Bob

[ididmytime]

Hey folks!

Long story short: Placed a heatsink on my (5 day old ) MK808. Everything went smooth. Device booted, after a while during the Finless MK808 (moving) boot screen it just crashed, no more signal to monitor and that was it.

The first thing i thought that maybe the heatsink wasn't seated correctly and maybe wasnt touching the SOC at all and it just died from overheating. But when i took it apart again the heatsink made perfect contact.

I know these thing are pretty much unbrickable, but now the blue led doesn't even turn on... That's bad right?

So somebody tell me this is fixable and how to do it!

Already tested different PSU, different USB cable. And tried booting it into flashmode or recovery mode. But like i said, the blue led doesn't even turn on...

Sounds dead to me.

GPU has possibly gone 'pop', regardless of what has caused it, it probably really isn't worth the time when the devices are somewhat inexpensive.

Sorry, has happened to us all at some stage.

[Abducted]

PC (and by that i mean your flash tool) didn't find it before. I'll try connecting it to the PC again.

I used simple Cooler Master thermal paste and a thin layer. Easy to apply, easy to remove and it isn't conductive (as far as i know). I think Arctic Silver is a little overkill to transfer max 10-12w over a something like a 25mmx25mm surface.

[Abducted]

Sounds dead to me.

GPU has possibly gone 'pop', regardless of what has caused it, it probably really isn't worth the time when the devices are somewhat inexpensive.

Sorry, has happened to us all at some stage.

Could be, but why would it go pop if the heatsink was seated properly? The original heatsink only made contact to about 60-70% of the chip.

[Finless]

Well another thing that could have made it go pop is
1) You flexed the board a little to much working with it and lifted some pins off the board?
2) ESD (Electro Static Discharge). e.g. you zapped it handling it with a static discharge. It does not have to be much and you may not have even felt and discharge at all.

As a last resort, try some heat (hair dryer) or cool it way down (put it in a towel and put it in the freezer for an hour) and see if it comes on.

Best I can come up with....

Bob

[ididmytime]

Could be, but why would it go pop if the heatsink was seated properly? The original heatsink only made contact to about 6-70% of the chip.

It's feasable it might of died without you touching it regardless, as it could of naturally been a 'duff' unit, the unit is so small, a sliver of something could of touched two contacts it shouldn't of.

However, when something boots, then crashes after modding, it's never good, you always hope its just overheating.

Clearly that's not the case here. Sounds like you took precautions, like I said, happens to us all, I have killed my fair share of things.

[Abducted]

Well another thing that could have made it go pop is
1) You flexed the board a little to much working with it and lifted some pins off the board?
2) ESD (Electro Static Discharge). e.g. you zapped it handling it with a static discharge. It does not have to be much and you may not have even felt and discharge at all.

As a last resort, try some heat (hair dryer) or cool it way down (put it in a towel and put it in the freezer for an hour) and see if it comes on.

Best I can come up with....

Bob

Thought about the 1st one too since i had to use quite a bit of force to get the stock cooler off. But i figured since it started to boot it wasn't that.
Same with your 2nd point really. While it was booting i wasn't touching it. Of course i might have brought something close to dead during the mod and it couldn't even survive the boot.

Going to try the cold and heat thing... Not a lot of reason not to give it a try now.

[Abducted]

However, when something boots, then crashes after modding, it's never good,...

Well that's for sure!

p.s. i ment 60-70% earlier, not 6-70%...

[leolas]

Re: Did i just kill my 5 day old MK808???

I hope you get it alive again, I bet for the freezer option.

[Abducted]

IT'S ALIVE!!!



Well not completely, but for some reason it has a heartbeat again and i can get into CWM recovery!

More to come...

[snakekiller]

IT'S ALIVE!!!



Well not completely, but for some reason it has a heartbeat again and i can get into CWM recovery!

More to come...

ok i have a cwm flashable zip with my snakegenmod too.
i can upload it for you .then you can flash the rom with cwm.

[Abducted]

Thanks a lot for the offer, but i used Leolas's CWM Finless 1.7 pre-made zip file and it worked! It's back up and running again! With very nice heatsink!!!

At first i though maybe my OTG port was broken since my PC would never find the stick and also after a while the blue led would never light up. So i figured i'd try the normal power usb port but it never did anything then either. (meaning the led never came on)
But then i read these sticks dont boot when they're not connected to a TV/monitor. So i connected the HDMI and used the power usb port to power it and it booted!!! It did however crash again at the same point it did when i thought it died.

Anyway, by pressing the reset button during boot i was able to get into CWM and flash the ROM. Just tested the OTG port and it's booting just fine too. Need to check if the PC find the stick now. But if it does i have no idea why it would find it before. Also after the first crash i still had the stick attached to the monitor of course, so why didn't it just boot up again then? Ah... the fun you can have with the devices.

My baby boy with his heatsink:

http://henslfuk.eu/heatsink/IMG_20130503_162431.jpg

http://henslfuk.eu/heatsink/IMG_20130503_162607.jpg

http://henslfuk.eu/heatsink/IMG_20130504_201332.jpg

http://henslfuk.eu/heatsink/IMG_20130504_201347.jpg

http://henslfuk.eu/heatsink/IMG_20130504_201426.jpg

[blackra1n]

My baby boy with his heatsink:

looks great man!

i tried also to remove the stock heatsink but its stuck hard on the CPU.

how did you managed to take it off ?

does it require alot of force to remove it?

what method did you use to remove it ?

im afraid i will ruin the chip underneath.

meanwhile, i just put bigger heatsink on top of the stock heatsink, of course with thermal paste.

[Abducted]

Yeah i think the different revisions of the MK808 use different methods to attach the heatsink to the SOC. I read the thread by Finless about clearing the NAND by shorting pins 8 and 9 and from what i read there it should be quite easy to take it off and there he says it's attached by thermal tape. However mine was stuck to the SOC quite good and it seems like some sort of silicon kit (like what you use in the bathroom to seal corners and edged which i think wouldn't even be that bad of an idea.) to "glue" it to the SOC. It was also rather hard to remove the residue from the SOC.

So yeah i can imagine you had a hard time trying. Anyway here is what i did.

First i peeked under the heatsink to see where i could see the white paste/glue. For me on the side of the SD-card i couldn't see any so i just assumed it wasn't as stuck on that side compared to the other side.
I then used a plastic card (like a creditcard) and put it between the PCB (the green or blue plate where everything is solderd to) and the heatsink. So not between the SOC and the heatsink, there is definitely not enough room for that. Then i used a small flat head screwdriver and put that between the plastic card and the heatsink. Then just slowly and gently twist it. The plastic card will prevent you from damaging the PCB.

Since a picture says a thousand words...

http://henslfuk.eu/heatsink/IMG_20130506_134808.jpg

I have the screwdriver in the middle of the heatsink in that picture, but i suggest you start more to the left of the right. That way the most lifting power is towards a corner of the SOC so there is a bigger chance the "glue" will start to let go.