Hello all 
Firstly - my apologies, I'm a first-timer here and similarly this is the first time I've attempted anything complicated with Android. However, between us my Dad and I have spent an entire weekend and tried every fix we can find yet we still seem unable to install this update.
To cut a long story short, I've had my Desire since December 2010 and am mostly very happy with it, however the memory issues are becoming a massive problem so I need to lose the Orange/HTC apps. I asked my Dad to assist with this, and he came up with the solution of running the HTC update to take me from 2.2 to 2.3, which clearly states you will lose anything preinstalled, hopefully acting as a dummies' alternative to rooting.
We've downloaded and unzipped the files from the HTC website, set up HTC sync, and then run the installation programme. The problem is that we get error #171, unable to detect USB connection, time and time again. We've tried four different computers (one Win XP, one Win Vista and two Win 7), as well as three different USB cables. The phone is set to allow installation of non-market apps, USB debugging enabled, and not to sleep. I've disabled my antivirus, antispyware, and set my laptop to not go into standby. The program is set to run in compatibility mode for windows vista service pack 2, which was a fix someone had, and run as an administrator. We tried using a different connection utility too, and I've even factory reset the phone in case there was a setting on there which was causing a problem. Someone had suggested that running it through twice, ie letting it error but then doing it again without resetting the phone, but that gives error #170, which again is that the phone is not connected. We've used HTC sync, connected as a disk drive, charge only... all to no avail. My Dad did something involving ADB and drivers but I'm not sure exactly what, and other than that we're at a loss as to what else to do.
I'd really appreciate some help with this, I'm hoping we've just missed something obvious. I'm a little scared to root manually but will do this if there is no way of getting this method to work.
Thank you!
Jen

Firstly - my apologies, I'm a first-timer here and similarly this is the first time I've attempted anything complicated with Android. However, between us my Dad and I have spent an entire weekend and tried every fix we can find yet we still seem unable to install this update.
To cut a long story short, I've had my Desire since December 2010 and am mostly very happy with it, however the memory issues are becoming a massive problem so I need to lose the Orange/HTC apps. I asked my Dad to assist with this, and he came up with the solution of running the HTC update to take me from 2.2 to 2.3, which clearly states you will lose anything preinstalled, hopefully acting as a dummies' alternative to rooting.
We've downloaded and unzipped the files from the HTC website, set up HTC sync, and then run the installation programme. The problem is that we get error #171, unable to detect USB connection, time and time again. We've tried four different computers (one Win XP, one Win Vista and two Win 7), as well as three different USB cables. The phone is set to allow installation of non-market apps, USB debugging enabled, and not to sleep. I've disabled my antivirus, antispyware, and set my laptop to not go into standby. The program is set to run in compatibility mode for windows vista service pack 2, which was a fix someone had, and run as an administrator. We tried using a different connection utility too, and I've even factory reset the phone in case there was a setting on there which was causing a problem. Someone had suggested that running it through twice, ie letting it error but then doing it again without resetting the phone, but that gives error #170, which again is that the phone is not connected. We've used HTC sync, connected as a disk drive, charge only... all to no avail. My Dad did something involving ADB and drivers but I'm not sure exactly what, and other than that we're at a loss as to what else to do.
I'd really appreciate some help with this, I'm hoping we've just missed something obvious. I'm a little scared to root manually but will do this if there is no way of getting this method to work.
Thank you!
Jen
