Have you tried: Just Hold The Power/Lock Button And The Home Button At The Same Time For About 10 Seconds Until The Apple Logo Pops Up On Your iPhone's Screen Just works as a reboot, not 100% sure it will work. If not its might be something internal that has changed.
Hi nick, Unfortunately calibration can't be turned off from what I know, but you can change a setting so it only does a calibration every so often, depending on the model of your printer depending settings that you can change it to. Have a look through your printer settings for *Calibration Timing* and see if you can change it to a different time, for example once a week. Hope this helps. Thanks Jordan.
Hi Robin, It sounds like your battery is not functioning anymore, maybe try a replacement battery. With your second issue about the power button at the top always being on, can you explain in more detail what you mean ? Thanks Jordan.
Millsp2000, It seems your home button is unresponsive, that may be due to when you replaced the battery you touched the two pins of the home button,which might of short circuited it. use a multimeter on the two pins and check that you didn't. If you did then that's a bigger problem. Also if the pins look flattened try gently lift them up a bit that can also cause them to be unresponsive. Hope this helps your problem. Jordan.