Hi All! I have 2 ipads with the above model numbers. I notice there are differences in the settings: 1. CH model says WLAN, LL model says WI-FI 2. CH default search engine is Baidu, LL model has Google 3. CH model has Sina Weibo, LL don't Also, when I did an update and restore on these 2 (from 8.1.3 to 8.2), the above differences in the settings stay on each ipad. Does Apple check the model number when doing the update/restore to see which defaults, firmware/ios version to use? I'm guessing the one with the CH in the model number is from China and the one with the LL is from the US. Is there a way to install the LL version of the software/ios/firmware onto the CH model? Thanks in advance!