When you can’t take the battery out, of course
Mostly in an effort to make their products as thin as possible, hardware manufacturers have been producing smartphones and tablets where it is impossible to remove the battery. One of the downsides, of course, is that if the battery won’t hold power for as low as it should, then you can’t replace it. A major drawback, however, is that it means the simplest way of resetting a device that has crashed (frozen) is no longer an option. Taken out the battery with a laptop/notebook PC is the easiest way to reset a crashed device. What do you do when the battery is integral? Solution: – search for the ‘soft’ key combination which will reset the device.
The engineers who design the smartphones and tablets with integral batteries are well aware of the potential for the device’s firmware or operating system software to crash.
So they always build in some kind of ‘back door’ means of resetting the device. You’ve just got to discover what it is.
This kind of information is virtually a must for anyone who is going to ‘root’ (Android) or ‘jailbreak’ (iOS) a smartphone to alter its operating software.
Hence it is a jolly good idea to find out what the key push combination is before attempting such a task.
For example, when we explained how to migrate (root) an Android handset to Froyo, we were using a Motorola Dext/Cliq.
In this case, the correct combination was holding down the power and the camera buttons. But you can’t assume this will work with all Motorola models – such as the various RAZRs, for example.
Hence, you need to scour the internet to see if anyone has actually published the relevant advice.
We were lucky because we were trying to reset an H-P TouchPad tablet – which we had modified to work with Android via CyanogenMod 9 (see here).
If you are completely in the dark and have to resort to guessing, the answer is nearly always to hold down the Power/On button for say ten seconds whilst simultaneously holding down another button.
GoMo News was lucky because we found the exact soft key sequence here on the official HP webOS support forums.
The answer? Simultaneously hold the power button; volume down button; and the big HP button for 30 seconds.
Trust us, it works. Incidentally, the volume down button is at the top of the device – something which is hard to work out if the tablet has completely crashed.
We hope this advice helps somebody out of a hole but sadly, we cannot offer a reset advice service to all of our readers! There are literally thousands of combinations!