Problems with Samsung Galaxy Ace

These are the problems I encountered with the original samsung galaxy ace and their solutions if any

Installation error : couldn't install on USB storage or SD card

• If you are still using android 2.2 on galaxy ace I strongly recommend an upgrade. Or checkout the above link for a temporary solution for the problem

WiFi error

• You try to switch the WiFi on but it is stuck in error. WiFi can be switched on only after restarting the phone. This problem is a result of a bug in the part of OS that switches between different types of network. 
• when you try to switch on WiFi in your phone, it first disables the mobile network. That is 2G/3G. In case of error this switching mechanism WiFi won't be turned on. Chance of error is more if you are having an active transfer in the mobile network. A possible prevention method is to disable mobile data network before you switch Wifi on.
• A solution was promised with the the 2.3.4 update but the problem recurs now and then. See the video
• 
  

Heating problem

• Using WiFi hotspot generates a lot of heat in this phone. I have seen upto 55degrees/131 F. Below are the screen shots showing battery temperature at 50 and 55 degrees at two different occasions.

 These screen shots were taken using ZDBox, a great system management tool
Low total memory and RAM

• User available memory is only about 130MB in effect. This is completely insufficient to install even a moderate number of apps. 
• Low RAM results in undue closure of programs during multitasking. But what good it could do when apps like Facebook are using 102MB RAM