a2 innosilicon broken blade. how to repair?

emdje

hero member

Activity: 686

Merit: 500

Quote from: eraser on October 17, 2014, 04:42:24 AM

Quote from: emdje on October 17, 2014, 04:34:16 AM

Man that sucks!!
If the other blade still works, take the heatsinc off as well and look it enough thermal grease is applied.
On my blade one of the chips was overheating as well due to a lack of thermal grease.
I don't know if you are good with electronics, but I might know someone who can get you individual A2 chips.

could it works without a chip ?
it's a little bit hard to resolder it

No I think that will not work. The chips are daisy chained, which means it could be series or parallel (if I am correct). But non the less the software expects a hardware reset conformation before the chips are allowed to hash.

eraser

full member

Activity: 132

Merit: 100

Quote from: emdje on October 17, 2014, 04:34:16 AM

Man that sucks!!
If the other blade still works, take the heatsinc off as well and look it enough thermal grease is applied.
On my blade one of the chips was overheating as well due to a lack of thermal grease.
I don't know if you are good with electronics, but I might know someone who can get you individual A2 chips.

could it works without a chip ?
it's a little bit hard to resolder it

emdje

hero member

Activity: 686

Merit: 500

Man that sucks!!
If the other blade still works, take the heatsinc off as well and look it enough thermal grease is applied.
On my blade one of the chips was overheating as well due to a lack of thermal grease.
I don't know if you are good with electronics, but I might know someone who can get you individual A2 chips.

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: eraser on October 16, 2014, 05:06:58 AM

Removed the sink and this is what I see.
https://www.dropbox.com/s/stvct3iak4cn76i/IMG_20141016_115638.jpg?dl=0

One chip appears to be melted, maybe i can try to remove it ?
someone had the same problem ?

tnx

You might be able to sell it on forums to someone to fix. That is not going to be easy or cheap to get someone to do. A new blade sadly might be best solution.

eraser

full member

Activity: 132

Merit: 100

Removed the sink and this is what I see.
https://www.dropbox.com/s/stvct3iak4cn76i/IMG_20141016_115638.jpg?dl=0

One chip appears to be melted, maybe i can try to remove it ?
someone had the same problem ?

tnx

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: eraser on October 15, 2014, 06:03:40 AM

tried original firmware and emjde firmware.. same results Sad

It's not sounding good on the blade sadly. With that we can rule out software problem.

Only thing left is hardware. You could make sure it is not unplugged even switch cords from one blade to other to make sure it is the blade.

If it turns out none of that works you can try to get a replacement blade but sadly i don't think they will go to cheap on the a2's. You might wait after L1's that is what i predect will cause a2's to go down a little more. There could be some others that will help it go down in price but i myself dont trust most of the preorder stuff. L1's are pretty much all im trusting at the moment.

morphtrust

sr. member

Activity: 259

Merit: 250

man I am so sorry, I had a fury I thought was busted and was pretty sad, luckily it turned out to be something really simple, (USB hub is cheap and the port it was plugged into was not making contact right, switched to unused port and change start batch to use it, and all was well, for now at least)

I hope you can get that sorted, Maybe they need to endorse or someone needs to research what they need to source parts and how to repair these. especially if it is not something like one of the ASIC chips, but just maybe a blow cap or something.

*****EDIT******
also with those massive heat sinks covering most of the unit's components it is impossible to see if something is blown under there, just incase it is something that is visible to see. Repaired quite a few things by just looking and finding a blown out part, and replacing it with a new part (caps, power transistors, relays) and got a good long bit more life out of said something.

eraser

full member

Activity: 132

Merit: 100

tried original firmware and emjde firmware.. same results Sad

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: eraser on October 14, 2014, 05:30:46 PM

i don't know how to reflash firmware, could you link me an how to please?
ty so much

Again use a 2nd card. We want to make sure you don't lose what you have.

Get a second card i believe 8 GB for this. You will want to download original firmware from https://bitcointalksearch.org/topic/m.6957861 . You can then use win32diskimager to load the image onto the card. Basically select firmware download and make sure to select SD card dont select C drive and write the image to new sd card.

eraser

full member

Activity: 132

Merit: 100

i don't know how to reflash firmware, could you link me an how to please?
ty so much

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: eraser on October 14, 2014, 08:25:03 AM

Quote from: emdje on October 04, 2014, 03:19:45 AM

Can you post the log file from cgminer?

blue leds is off and the second blade doesn't appear this is the log

Computer: cgminer 3.9.0   When: 21:23:54 14-Oct-2014 UTC+08:00   Status: Success   Message: 1 ASC(s)
ASC   Name   ID   Enabled   Status   Temperature   MHS av   MHS 5s   Accepted   Rejected   Hardware Errors   Utility   Last Share Pool   Last Share Time   Total MH   Diff1 Work   Difficulty Accepted   Difficulty Rejected   Last Share Difficulty   Last Valid Work   Device Hardware%   Device Rejected%   Device Elapsed
0   BA1   0   Y   Alive       13.68   14.48   37   0   0   30.91/m   1   21:23:53   982.3556   18,944   18,944.00   0.00   512.00   -1s   0.00%   0.00%   72

You might try reloading firmware just to make sure. Use a 2nd card as we dont want to destroy your first that does at least work on one blade.

As far as fixing i think it would be replacement if it is truly dead.

eraser

full member

Activity: 132

Merit: 100

Quote from: emdje on October 04, 2014, 03:19:45 AM

Can you post the log file from cgminer?

blue leds is off and the second blade doesn't appear this is the log

Computer: cgminer 3.9.0   When: 21:23:54 14-Oct-2014 UTC+08:00   Status: Success   Message: 1 ASC(s)
ASC   Name   ID   Enabled   Status   Temperature   MHS av   MHS 5s   Accepted   Rejected   Hardware Errors   Utility   Last Share Pool   Last Share Time   Total MH   Diff1 Work   Difficulty Accepted   Difficulty Rejected   Last Share Difficulty   Last Valid Work   Device Hardware%   Device Rejected%   Device Elapsed
0   BA1   0   Y   Alive       13.68   14.48   37   0   0   30.91/m   1   21:23:53   982.3556   18,944   18,944.00   0.00   512.00   -1s   0.00%   0.00%   72

boostbus

newbie

Activity: 13

Merit: 0

Did yo ever manage to fix the broken blade?

emdje

hero member

Activity: 686

Merit: 500

Can you post the log file from cgminer?

eraser

full member

Activity: 132

Merit: 100

Dear guys,
we have a innosilicon a2 mini with one broke blade.
It appears to have some power problems.
Anyone know how to repair it ?
tnx

https://www.dropbox.com/s/6oubrxfvp7fdcyx/IMG_20140915_123626.jpg?dl=0
https://www.dropbox.com/s/e0v8j0l9349ft00/IMG_20140915_123639.jpg?dl=0

Topic: a2 innosilicon broken blade. how to repair? (Read 1593 times)