[BPI-R3] (SOLVED) booted in emmc but settings not saved

Hello need some help here. I just got my r3 today, followed guide here to boot EMMC. 1st runing was ok, but all settings didn’t saved after reboot. I re-do the process to burn EMMC again, this time I got into loop and can’t enter any command. re-try again and got same errors. Any idea to solve this folks?

noticeable error messages were: booting Loading Environment from MMC… unable to read ssr unable to read ssr *** Warning - bad CRC, using default environment

after system is up, non-stop loop jffs2: jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found…

EDIT: MMC bad CRC solved by follow this procedure. the jiffs2 eraseblock() loop would still occure if I follow official copy NAND to eMMC procedure.