I have been using Nokia E7 since a long time and i am loving it which having Symbian 3 OS is upgradable to Nokia Belle OS but it having some issue over it on updating it cannot update all widget properly guys if you having some more updates reference or link please mail or message new widget belle update so that I can download and update my Nokia E7 OS?
It is very much possible to upgrade the Nokia E7 OS from Symbian 3 to Anna belle. Since you've already mentioned that its already upgraded on your nokia E7 phone. Well it takes some time to work on new OS properly and smoothly there is no lag or any other serious occurred with anyone .However it does take some time to work properly on all the features of new OS. So you can wait and if problem stay's there then you can reinstall the OS. I have a couple method to upgrade your phone
1-You can try downloading the OS from OVI suit first you need to install the OS on your computer system. Computer need to connect with your Nokia E7.
2-You can try-out Nokia software updater, Again you'll need to connect to the computer via cable and go to NSU application .It will guide you the steps.
3-Another way you can download the Anna OS, by dialing *#0000#, On the page you'll see the installed button.
The Nokia E7 is a discontinued 3G Smartphone operating on 2G and 3G network bands using GSM and HSPA technologies. It was announced to the public on September 2010 and released on February 2011 measuring 123.7 x 62.4 x 13.6 millimeters and weighing 176 grams. It uses mini-SIM card and includes a QWERTY keyboard.
It has AMOLED capacitive touchscreen display with 16M colors at 360 x 640 pixels screen resolution. It is protected with Corning Gorilla Glass with Nokia ClearBlack display. It ships with Symbian^3 upgradable to Nokia Belle OS powered by 680 MHz ARM 11 processor and Broadcom BCM2727 GPU. It doesn’t support microSD. It runs on 256 MB RAM with 16 GB internal storage.
The primary camera supports 8 megapixels featuring Dual-LED flash. It supports 720p video recording at 25 fps and 720p at 30 fps (via SW update). The secondary camera is a VGA camera. It has 3.5-millimeter jack, Wi-Fi 802.11 b/g/n, Bluetooth 3.0 with A2DP support, GPS with A-GPS support and Ovi Maps 3.0, stereo FM radio with RDS support, and microUSB 2.0 with USB On-The-Go support.
It has built-in accelerometer, proximity, and compass sensors. The pre-installed web browser supports WAP 2.0/XHTML and HTML with Adobe Flash Lite support. It runs on non-removable BL-4D Li-Ion 1200 mAh battery with standby time up to 432 hours on 2G and 480 hours on 3G. Talk time is up to 9 hours on 2G and 5 hours on 3G.
It is available in Dark Grey, Silver White, Green, Blue, and Orange colors.