Rev5 bricked - need SD-H pad location to boot from SD

[alejandroalcaldelopez-oss]

Hi, I have a ZynqSDR Rev5 clone from AliExpress (Zynq 7020 + AD9363). I accidentally flashed wrong firmware

. The board powers on (blue LED solid), FT4232H debug port works, Ethernet connects at 1Gbps but no USB enumeration. I have the correct firmware on SD card (libresdr baseclock v0.38) but the board won't boot from it without the SD-H jumper. Looking at the zynqsdr_rev5.pdf schematic (U17 TXS02612RTWR pin 24 SEL), where exactly are the SD-H pads located on the physical PCB? Photo attached.

[alejandroalcaldelopez-oss]

Rev5 bricked after wrong firmware flash - need SD-H pad location

Hi,

I have a ZynqSDR Rev5 clone purchased from AliExpress
(Zynq 7020 + AD9363). I accidentally flashed firmware
compiled for AD9361 instead of AD9363 and now the board
won't enumerate over USB.

Current symptoms:

• Blue LED solid on (board powers up)
• FT4232H debug port detected correctly (ttyUSB0-3)
• Gigabit Ethernet connects at 1Gbps
• USB OTG port does not enumerate at all
• No response on serial console (ttyUSB2 at 115200)

What I have tried:

• SD card prepared with libresdr baseclock_cpu750_ddr525
  firmware (all files in FAT32 root, uramdisk.image.gz
  correctly named)
• Pressing DFU button while connecting USB
• SSH and telnet to 192.168.1.x - connection refused

The board does NOT boot from SD card. According to the
schematic (zynqsdr_rev5.pdf), pin 24 SEL of U17
(TXS02612RTWR) needs to be pulled high to enable SD boot.

My question: where exactly are the SD-H pads located on
the physical Rev5 PCB? I cannot identify them from the
board photos.

Photos of the board attached. Any help appreciated.

Thank you.