Cellular telephone with a changeable key arrangement

A cellular telephone comprising:

• a housing having a plurality of keys arranged in a second manner on an upper side of the housing;
• a first circuit board installed inside the housing, the first circuit board having a first connector;
• a second circuit board installed inside the housing, the second circuit board having a plurality of second key switches arranged in the second manner for interacting with the plurality of keys to generate corresponding key-pressing signals, and a second connector detachably connected with the first connector for transmitting the key-pressing signals;
• and
• a processor installed inside the housing and electrically connected to the first connector;
• wherein when the second connector connects with the first connector, the key-pressing signals from the second circuit board will be received by the processor to control the cellular telephone.

A cellular telephone comprising:

• a housing having a plurality of keys arranged in a second manner on an upper side of the housing;
• a rigid printed circuit board installed inside the housing, the rigid printed circuit board having a first connector;
• a flexible printed circuit board installed inside the housing, the flexible printed circuit board having a plurality of second key switches arranged in the second manner for interacting with the plurality of keys to generate corresponding key-pressing signals, and a second connector detachably connected with the first connector for transmitting the key-pressing signals;
• and
• a processor installed inside the housing and electrically connected to the first connector;
• wherein when the second connector connects with the first connector, the key-pressing signals from the flexible printed circuit board will be received by the processor to control the cellular telephone.