miguel 24/12/2019 14:37:43
Q：Hello, I am interested in learning repair of miners and buying the tools to provide service in Venezuela. Do you give any kind of tutorial or online classes?
A：You can test the voltage and resistance of the 29 # chip first, the signal of 30 # is sent by 29 #
shayan 17/12/2019 15:50:26
Q：hello, do you have datasheet for bm1387b and bm1387? what is a diffrence between those and cant be used bm1387b on hashboard when another chip was bm1387?
A：Their pin data are roughly the same, the main difference is the high and low temperature, the data sheet is in the repair guide
Mehdi 16/12/2019 2:58:03
Q：Hi i have problem in s9 14th hashboard repair. I'm use fixture and found broken chip then replace that with new bm1387b but when tested it the chip does not fix. In first hashboard i'm replace chip 51 after that i was checked chip voltage and get this result : clk:0 C0:1.8 Ri:2.2 b0:1.8 rst:1.8
In the second hashboard i was replace chip 31 and after that i get this result: clk:0.4 C0:0.4 Ri:0.4 b0:0 rst:0. I'm very confused what is my problem.
I'm use heat gun in 450° to remove broken chip and install new chip do you think my new chip was damaged by tempretur? Or may be my bm1387b chip is not correct?
A：Hello, please don't use too high temperature for continuous heating, but I don't think you can find a suitable test point, which is located at the transmitting end below the chip
mohsen 14/12/2019 21:06:36
Q：hi in youtube i found this video about hashboard repair. do you know what is the used software in this video ?? Is there gui software for hashboard repair used fixture tools ?
A：Hello, you can contact customer service staff WhatsAPP + 8618623251355
dadashi 14/12/2019 14:23:30
Q：hi again and thanks for your answred my question i have another question. how i must found chip 31, where is chip 0 and how i can counting chips in which direction ?
A：Repair instructions indicate chip order and signal direction
dadashi 13/12/2019 1:05:00
Q：hello i have two question about s9 hashboard.first, i want know what is chip numbering on hashboard v4.21 and v4.2, do you have any image of hashboard with chip number? second, i'm tested hashboard with fixture and found asic 32 is damaged then i'm check all of chips on hashboard with multimeter diode mode and not found any problem, please told me how i must check chips with multimeter because i watched your video more than 3 times but i can't get whats showing on multimeter when chip broken
A：Hello my friend, when the test fixture prompts a 32 error, it is most likely a failure of chip 31. Please check chip 31
Mohsen 12/12/2019 2:54:24
Q：hi have two s9 hashboard but when i check them with fixture tool i will get this error : "enable_extended_mode_of_temperature_sensor: Can't set extended mode. ret = 0x41980900" then fixture continue checking but fixture showing nonce 0 and temp 0 but all chip getting hot and i will stop the check. do you have any idea to solve this problem?
A：Hello, please replace the temperature profile inside the TF card, this is caused by the wrong temperature profile
Gabriel 9/12/2019 11:32:56
Q：Hi!! I'm looking for ebit e10 controll board repair... do you have some information about that?
Thanks a lot!!!!
A：Hello dear friend, we have the E10 hash plate test fixture
anthony 9/12/2019 6:24:04
Q：thanks so much for repair guides, you are the best. do you have antminer r4 repair guide also ? any way to get full schematic for S9 ?
A：Sorry, my friend, we do not provide the complete circuit diagram of the hash board for the time being. For copyright reasons, it is a project protected by the developer
Babak 5/12/2019 5:22:20
Q：First of all I really really appreciate and say thank you for this great manuals you shared. They are pretty much useful and helpful. but i don't get the process of locating faulty asic using multimeter. I don't get which test points you measure and how it should be to determine wether if the chip is faulty or not.
A：Hello, dear friend, there are test points in the video tutorial. They are located at the bottom of each chip. The five test points are CLK, CO, RI, BO, RST.
milad 5/12/2019 5:15:14
Q：Hi I need a schematic of the board s9 t9 l3 m3x if you can email me and I will pay you bitcoin. Please guide me
A：Hello dear friend, there are download links in the maintenance section of the website, they are free
thoong Tu Ly 3/12/2019 22:06:40
Q：I need learn repair software for antminer s9 .please,help me.
A：Hello my friend you can send your whatsapp to my email and we will add you：
Daniel Hodali 3/12/2019 14:09:19
Q：Dear Sir or Madam,
the document "S9 Repair guide manual[EN] " is very bad (broken English). Even native speaker don't understand it. I am an engineer and I can read schematics. Is it possible to send the whole schematics for the S9 hash board?
A：Hello my friend, your suggestions will be feedback to the company's technical department, thank you for your suggestions, please send your WhatsAPP to the email: firstname.lastname@example.org
nikzad 30/11/2019 18:10:07
Q：I want Antminer T9+ Hash Board Repair Guide.
plz help me.
A：Hello, we have added you, please pay attention to receiving documents
PEDRO HENRIQUE 26/11/2019 8:04:06
Q：Hello my friends, I need repairs and assistance in my miners, currently are on the border of Brazil with Paraguay, I would like to be attended by your representative.
A：Hello dear friend, please tell me whatsAPP, thank you, we will help you