Like many others I installed the OTA update on my G300 to get Android 4.0 (B936) but shortly found out that some things got worse on my phone.
If you also have issues with the update you can:
- Downgrade from ICS to GB:
www.huaweidevice.com/worldwide/downloadCenter
- UPDATE 4th Dec 2012:
- Or wait a few days (around the 28th of Nov) when a new update will be released (B952). This should fix issues like the dictionary and performance:
www.facebook.com/huaweideviceuk
Vodafone Ireland haven't released the update afterall but if you still want to update go to these sites:
http://www.modaco.com/topic/358371-romics-stock-rom-b952-r1-updated-2911/
http://huaweig300.com/