T17/S17 malfunction: cases, solutions, remedies, RMA history

[The_binary_Observer]

mikeywith, from my personal point of view as you said about S9, those are the best miners from Bitmain and that tool was released after the S9 was first released. However, taking into consideration the connections this provider may have and more specifically inside Bitmain, the only fact that they are developing a software update to cover something that hasn't even hit the markets yet, thus nobody should know how those series will perform, it tells me they know something about it or may have a beforehand information and want to be ready when that happens, specially the Chinese.

[1714921626]

1714921626

[1714921626]

1714921626

[1714921626]

1714921626

[1714921626]

1714921626

[mikeywith]

FYI S19s have been in the market for quite sometime, enough time to start building a fixture tool or any other related projects , i don't confirm or deny the theory you just stated, in fact, i tend to agree to it, i know the Chinese get special treatment from bitmain, i just don't know how special that can be, with that being said i am by no means trying to defend the quality of these 19 series.

[danieleither]

Could somebody advise the correct fan type for 17 series power supplies or post a link? I have some faulty fans on my T17+ which I need to replace. They're out of warranty so I'll do it myself.

[philipma1957]

Could somebody advise the correct fan type for 17 series power supplies or post a link? I have some faulty fans on my T17+ which I need to replace. They're out of warranty so I'll do it myself.

this is good

https://shop.bitmain.com/product/detail?pid=000201910151107519921qKMCqzJ06A8


buy extra

and buy these

https://shop.bitmain.com/product/detail?pid=00020200612174640197fvX6QXWM06AB

[mikeywith]

Phill those are 12cm fans for the miner itself, he is looking for Apw9' fans those small once 4cm square, can be found here https://m.tr.aliexpress.com/item/4000204047398.html

Where are you located? I will try to find a supplier in your area.

[philipma1957]

Missed that thanks.

[danieleither]

Thank you - that's all the info I need, I can source it here or an equivalent

[Guinsanity]

What you guys think about this

https://www.aliexpress.com/item/4000112386858.html

For a complete noob into electronics and so, this is a good course? theres a placa that i can found free material teaching how to reapair asics and psus?

[philipma1957]

You need more than courses.
You will need tools 🧰.
You will need meters.
You will need a work station 🚉
In a clean room.

A lot of repair is desoldering of asics then soldering them back correctly.

Do you have good eyesight?
It helps to be able to do good close up work.

[Guinsanity]

I can have all of this, i have a good environment and a separated clean space in my farm, its just to know where to start and what to buy and so on.

[mikeywith]

I can have all of this, i have a good environment and a separated clean space in my farm, its just to know where to start and what to buy and so on.

Obviosully I don't know what is inside the paid that course, my guess is that there is nothing worth buying in there, you can find free tutorials both videos and written format in https://www.zeusbtc.com/ the list of tools can be easily known by watching one of their videos fixing a miner, it's mainly

1- The fixture tool
2- A multimeter ( some specific models)
3- Heatgun
4- Solder paste

Those are off the top of my head, watch the videos and write down all the tools they use.

[BitMaxz]

It doesn't need this course if he knows the basic things about Electronics and I think the other guide inside the course I think is how to flash the miner with SD card and how to upgrade the miner through web GUI.

He will need some repair kit for repairing like this image below.



For hardware related issues and SD card for software and fixture tool for diagnosing or finding the hashboard issue.

[Guinsanity]

The tool to check chip problems is the same for s9/s17 and so on?

[mikeywith]

[...]

This kit contains a few unneccessery stuff like Antistatic mat, gloves and even the DC power supply isn't needed here, he could use the miner's PSU, if he would open a repair shop he could probably invest in all those tools, but to simply fix your own miners and perhabs some of your friends', then my suggestion is to watch the repair videos and write down a list of the things they use.

Also if you are planning on buying the test fixture tool, I suggest you wait for a while, the latest one they have now is for the 17 series and S9/T9, and I am sure pretty soon they will make one for the 19 series, you might need that later on when you buy S19/S19pro/T19 gears, it would be cheaper to buy it once than having to buy it again when the time comes.

[amirheavy666]

Try using Asic.to firmware and undervolt or overvolt it a bit. That seemed to be a fix in most instances. Also, if that does not work, try lower frequency with higher voltage.

Dear favebook, please advise how try lower frequncey with higher voltage .. i have two t17+, it works with 3 chains without problem for only 3 days and after that one chip for each T17+ have 0 instead of 44. so with try lower frequency with higher voltage it have been solved ? how do this thing? please guide ....thanks.

[favebook]

First you have to install asic.to firmware (join Telegram group if you need help or read original thread - it has good tutorial): https://bitcointalk.org/index.php?topic=5208500.0.

Then you can choose one of presets (OC/DC) or you can manually type what frequency and voltage you want.

Keep in mind that this firmware is free but it has fee of 3% afaik.

[Scorpyy]

Bitmain is sending me DOA units from repair all the time. And now one unit is 2nd DOA. Really not fair from their side, i am paying all shipping and everything so we can bounce back and forward scrap units. And their coupons mean nothing at this point as not only that they dont have anything else for sale but it is questionable that i will even consider ordering anything from them again.

Does anyone know any e-mail / website for local authorities in China who can assist in here? Cause if they can't fix it, i want a refund.

[The_binary_Observer]

What makes you think that there is a slight chance you can even be taken into consideration by chinese authorities? You are dealing with a comunist regime who participates in every aspect of local and national economy and business. The comunist party owns every company in China even bitmain which is highly profitable in every aspect of the chinese economy and energy industry. Not even in your wildest dreams any action against bitmain will go thru using the Chinese authorities. However, in the USA there is a legal figure called "Class Suit Action" and in this particular case it perfectly fits what it was created for.

All what is needed is several of us all together to file a legal suit against bitmain in the USA for wrongful and deceiving selling practices by selling and distributing defective merchandise and offering no warranty in the USA.
Bitmain is registered in the USA as a company so if there is a substantial number of people filling for a class suit action we may, at least, receive a full refund even if some time have passed.

[Scorpyy]

Well nothing much really, but at this point i have nothing to lose. Returned them 2 units, 2 units came back. Both died within few hours. Again sent them 1 of them, i decided to keep one that works somehow with 2 boards, and the last one came in also malfunctioning ( works with 1 board ). I still can send it back for repair once again but whats the point? They will always send scrap back and that is obvious. I can also include some international authorities, i mean they can't just get away with this that easily by producing and selling scrap. 

I just need some agencies, local or international. But the thing is i know that they can always say that they sent out a working replacement and that it died during transport and we can't do anything about it. If they wanted to find a solution they would, but they don't want. Its much cheaper for them to pretend that they are fixing units until the end of the warranty period.

[mikeywith]

Bitmain is sending me DOA units from repair all the time. And now one unit is 2nd DOA. Really not fair from their side, i am paying all shipping and everything so we can bounce back and forward scrap units. And their coupons mean nothing at this point as not only that they dont have anything else for sale but it is questionable that i will even consider ordering anything from them again.

It shouldn't be just "questionable" at this point, it should be "certain".

I have totally lost faith in Bitmain since last year, since the day they started using terrible thermal paste/solder and low-quality PSUs, I encountered a huge loss and 90% of the miners I bought from Bitmain except for S9/S9i/S9j have either lost a board or two, got a toasted PSU, arrived with fallen heatsinks, they are complete trash and everyone who doesn't plan on losing money on purpose should AVOID Bitmain for now and probably months/years to come.

Does anyone know any e-mail / website for local authorities in China who can assist in here? Cause if they can't fix it, i want a refund.

I wouldn't take this route, I suggest you stay consistent in your communications with them, send them as many Emails as needed, be patient and polite and request a FULL refund at first, and then slowly settle down for less, negotiating with Bitmain is like negotiating with a hawker, it's nothing like the other professional multi-billion enterprises, so you need to use a different way of communicating and if you are persistent and consistent you will at least manage to get some refund in the end.