Learned about this back with the Acer Liquid. A-GPS tweak - Android @ MoDaCo I've attached 2 update.zip you can flash from recovery, one containing Canadian settings, and the other containing US settings. Not sure if these are test-signed. Been a long time since I made these. If it fails to verify, you may need to reboot recovery, toggle signature verification off, and then flash. Instead of downloading my weird zips, you might want to just use the ones here instead: [Mar.1.2011] Instantaneous GPS Fixation CWR v1.1 RELEASED! - xda-developers This is especially useful if you flash an out-of-region ROM like the Singapore ROM, and as a result end up with A-GPS servers that have horrible ping.