Hi Andrey
probably you used wrong uboot for other board, please use NXP/FSL Demo images
Board Support Packages (29)
L3.14.28_1.0.0_iMX6QDLS_BUNDLE (REV L3.14.28_1.0.0)
i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo Linux Binary Demo Files and Linux BSP Documentation
http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-process...
for writing to SD follow sect.4.3.4 Copying a boot loader image
attached Linux Guide
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------