This is a simeple tutorial how to enet into dfu mod of old ipad ipod and iphone these devices need a combination to enter in dfu mod. dfu if is the forced software mod of apple device to install frimware into theres devices, DFU stands for Device Firmware Upgrade.
this methode run on all those devices which have menu button like iphone sereis this iphon 8, ipod touch and ipads 3 level.
Follw this