Hi All:
Below is the S15 and T15 overclock firmware.
It need to be flashed by SD card.
SD card flashing method refer to bitmain official link:
https://support.bitmain.com/hc/en-us/articles/360033757513-S17-S17Pro-S9-SE-S9k-Z11-control-board-program-recovery-SD-card-flashing-with-customized-PW- 1,S15 firmware link is :https://antfirmware.oss-cn-beijing.aliyuncs.com/blacksheepwall_s15_0820_sd_udf_v11.tar.zip
2,T15 firmware link is :https://antfirmware.oss-cn-beijing.aliyuncs.com/blacksheepwall_t15_0820_sd_udf_v11.tar.zip
3, Unzip the firmware to the SD card. Keep the contents at SD card root path
3, Because the S15 and T15 power unit is 1800W. You'd better not overclock the miner too much.
4, This firmware using fixed mode. S15 default freq and voltage is 18.2V(400M).ideal hashrate is 29.5T
5, T15 is 19.5V(550M).ideal hashrate is 25T
6, I share my exploit experience to everyone：
step1: Get a S15 control board .Find the 4 signal port on board. like RX.TX.GND,3.3V.
step2: Connect the 4 signal to uart, then uart to serial port , serial port to USB , USB to PC.
step3: Run Serial port tool on PC. Baud rate is 115200-8-1.
step4: Then you can get the system kernel log .and login the system by Serial port tool.
step5: Get the miner process like cgminer or bmminer at /usr/bin/ path.
step6: Use the decompile tool to analyse the miner process file.
step7: The decompile code is assembly. Try to locate the related configure on code by track the printf in miner process log。
step8: Edit the assembly code directly. It's a little hard by not Impossible.
Everyone can try this method.
If you find it useful. Throw some satoshi to the me : 3B8G4bmAQdhViTaZd2inKDfK8BwzcTG7tW .Thanks
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