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 V1.0.10If none of them works your final move is to contact Bitmain if it still under warranty.