Your iPad has been synced with iTunes: directly connect the iPad to iTunes to restore it; Your iPad has never been synced with iTunes: set your iPad into recovery mode and then connect to iTunes; Suppose iTunes doesn’t detect the iPad, using iCloud service or a third-party program like Joyoshare UltFix.
If your iPhone 6 doesn’t suffer from physical damage or water damage, try the following methods: (1) Force restart the iPhone 6; (2) Restore iPhone with iTunes after making a backup; (3) Put the iPhone into recovery mode or DFU mode. If no backup, this method will cause data loss; (4) Try Joyoshare UltFix iOS System Recovery when common ways cut no ice. Such a tool is a professional iOS system repair tool for various iOS problems solving without any loss.
For iPhone 6 red screen issue, try: (1) Restart iPhone 6; (2) Force restart iPhone 6; (3) Put the iPhone 6 into recovery mode and use iTunes to restore it; (4) Try iPhone system recovery like Joyoshare UltFix iOS System Recovery. It can recover your iPhone to normal without data loss; (5) Ask Apple for support if there is something wrong with the iPhone hardware.
For your problem, it is suggested that you try Joyoshare UltFix. It offers a standard mode to rectify the error code 4005 without data loss and gives an advanced mode to remove the passcode from your iPhone.
Actually, most of the time that iPhone won’t turn on or charge results from iPhone system failures. Faced with this, trying Joyoshare UltFix iPhone system recovery can get such a problem solved without data loss. In case you are not willing to use a third-party program, connect your iPhone 6 to iTunes to restore it.
Put your iPhone 6S into recovery mode and then restore it with iTunes or try Joyoshare UltFix to fix iPhone error that occurs when restoring. It can not only fix such errors without data loss but also restore any iOS device in a quick way.