S11 downgrade

[kalafe2006]

Hello friends

How can I downgrade my S11.

It can't get IP

[BitMaxz]

You can flash the s11 miner with SD card program recovery from bitmain.

You need to download the SD card firmware under this page below:
- https://service.bitmain.com/support/download?product=Flashing%20SD%20card%20with%20image

And make sure to download the exact model ID of your s11 you can find it under the control board.

After that follow the guide from this link "Guide on how to make a program recovery"

[kalafe2006]

Thank you

but this control board doesn't have any jumper 

[BitMaxz]

Did you read the guide that I link above?

You don't need to move the jumper just insert the SD card after you copy all files and then turn on the miner just like the video guide included on the guide above.
It's not the same as antminer s9 that you need to move the jumper to flash the nand IC.

[kalafe2006]

I did do them one by one

But nothing happened.

Do I need to reprogram NAND ?

If yes who has NAND program of this IC? 29F2G08ABAEA

[BitMaxz]

There are two program from bitmain "S11-7007 搬运程序.rar" and "S11-7010 搬运程序.rar" so make sure that you download the correct firmware. You need to check your antminer s11 miner control board if it is "7010 control board" or "7007 control board" If you know the correct control board ID the flashing will work through SD card.

Try to flash it again with the another SD card firmware(Either "S11-7007 搬运程序.rar" or "S11-7010 搬运程序.rar") to test which one is correct for your s11 miner and make sure the SD card is clean and well-formatted.

If still not work try to hard reset the miner follow this guide below.

- Hold the IP reporter button for 15 to 20 seconds then release(increase the timeframe holding the button if not work around 20 to 30 seconds) .
- After that release and let the miner reboot
- Then try to scan the IP again with APMinerTool V1.0.10

If none of them works your final move is to contact Bitmain if it still under warranty.

[kalafe2006]

Sorry !!!

Who has NAND file of this device model ??