Bootloader failed to update on March update

Please run:

sudo fw_setenv revmodel '4kplus'
sudo fw_setenv initargs 'initargs=rootfstype=ramfs init=/init console=ttyS0,115200 no_console_suspend earlyprintk=aml-uart,0xc81004c0 ramoops.pstore_en=1 ramoops.record_size=0x8000 ramoops.console_size=0x4000 revision=4kplus'

Then reboot, and try update again.

Sam