Can hekate 4.2 make and restore a NAND backup on 6.2 OFW? I have a new switch with OFW 4.1, not sure what exactly 6.2 breaks and if it is worth updating it.
Also, is there any data I should dump from RCM mode, before upgrading to 6.2 OFW, which won't be accessible any more? What else may I...