| error 4013/4014 appear to be generic, expected device recovery mode but appeared again in hdfu. Typically I have seen this with oem parts/ battery failure or low power / incorrectly programmed nand as temp ramdisk o/s cant talk to it / nand bridging when fitted / shorted cap... so there is a lot to look at, even a failed nand can cause it!
first thing i do after battery is remove nand and boot in 3utools make sure it switches from hdfu to recovery mode, if its a phone unplug as many ancilliary devices as you can. |