NOC does not work perfectly all the time
NOC or the Networking Operations Centre is the heart of the Blackberry Operating System. It helps in sending or receiving messages to and from all Blackberry devices. In case the server is down, you won’t be able to enjoy its features. The push technology is also supported by NOC and in case you are in a business conference, you will suffer huge problems.
One of the main reasons of RIM’s failure is its time of launch in the market. While Apple came up with a new device every year and Samsung kept churning the S series, Blackberry devices were delayed and could not keep up with the market.
Lack of IMAP support affects how your e-mails are stored. You emails will be viewed differently on Blackberry devices as compared to your desktop. Furthermore, you can’t even search your emails with keywords.
No offline GPS
Navigation software is very common these days, and almost all smart-phones have it. However, the Blackberry OS requires you to be online at all times if you want to use GPS navigation - a requirement other operating systems don't have.
Problems in Graphical User Interface
Graphical User Interface of Blackberry OS became complex with the passage of time. Users feel that each new version gets more complicated rather than simplifying things.
Fewer blackberry applications
There are few blackberry apps available and even the developers are not making more. This might be because of a smaller screen size and the restrictions on the apps. This is a huge disadvantage when compared with other operating systems.
Size of the screen
iPhones and Android devices have larger screens compared to Blackberry devices. According to recent trends, customers have been more inclined towards larger screens, and this has adversely affected Blackberry devices.
Blackberry phones come with physical keyboards. Most people nowadays prefer virtual keyboards as compared to physical ones. Furthermore, the presence of the keyboard means the screen size has to suffer.