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Also the part where you talk about “recovery mode” I think we referred to this as DFU mode back in the day. “Device firmware update” I’m not entirely sure it wa
by ixtli 3y ago
Also the part where you talk about “recovery mode” I think we referred to this as DFU mode back in the day. “Device firmware update” I’m not entirely sure it was called “recovery” at the time though I could be wrong as it’s been more than 15 years
- sneak 3y agoI think DFU mode and recovery mode are different. In recovery mode the screen is initialized and displays the “connect to iTunes” image. In DFU mode the screen is blank; I think this is implemented by the bootrom and can be used to restore even iBoot. https://www.theiphonewiki.com/wiki/DFU_Mode https://www.theiphonewiki.com/wiki/DFU_Mode
- ixtli 3y agoooo good point it’s been so long I might be misremembering. the reason I commented was because I thought you had to put the device in DFU to upload the image to the Media dir that was mounted rw. But again it’s been 15 years lol
- 95014_refugee 3y agoDFU is implemented in the ROM; it is morally if not technically a subset of the open standard by the same name. Recovery mode is implemented in iBoot; it provides mediated access to the command interpreter and some file-ish transfer capabilities. Both are still in use; whilst the implementations have obviously evolved the fundamental interactions have not changed since the original Apple (not Samsung) ROMs.