The T10 Torx screwdriver mentioned in this article and sold by IFixit (product number IF 145-080-4) is too big and does not fit the much smaller screws on the Garmin 2460. I wasted around £10 on a screwdriver that does not do the job!

I have just replaced the battery on my Apple 4S using the IFixit kit. All seemed to go well until I switched it back on. The charge on the new replacement battery was about 56% and I was getting a good wi-fi signal. However, I could not open the phone as a warning screen appeared stating Temperature - "IPhone needs to cool down before you can use it" I have tried a hard reset and also taken the sim card in and out but to no avail. I charged the battery up to 100% and tried again but still with the same temperature warning. I don't know what else to do. Does anyone have any ideas?