using a calculator that is damaged

for those of you who again confused to use a calculator, but calculators you longer battery is damaged or there is no easy way nya.ada I ever did it was successful, what was wrong if you want to try it in the following manner
1. calculators that have been damaged or its no batteries
2.keyboard and its screen is still there
3.kalkulator directly irradiate the sun
4, after the calculator has irradiate the sun you can try it
5.tanpa karkulator sun damaged will not work.
  >> his conclusion
  karkulator that have been damaged can function as helped by the sun without sun damaged calculator will not work.

what was wrong if you want to try the tips I've ever done.