I recently tried to install WP8.1 GDR1 update, and it downloaded the files perfectly, only took 5-10 minutes. It then asked if I wanted to install, and I pressed install. It restarted, and went on to the cogs. I left it on all night, in charge. I had 2.5GB of internal storage left on my phone, also. When I woke up 8-9 hours later, nothing had happened. The loading slider hadn't even moved, it was still all grey. I left it all day, and now it has been stuck at 0% on the cogs for around 24 hours. If I bring my phone into a shop, will they mend it? Is there anyway I can mend it without a hard reset? Should I try a soft reset? Thank you.:smile: