Because the screen of my latest cellphone didn't get a picture, I brought it to au shop*1.
A stuff there said that the battery of the cellphone seemed to be decayed by water.
And she said that it would cost me the highest fee in repairing the cellphone, 5200Yen.
So, I have no choice but to use an alternative cellphone.
This is why I use the older cellphone.
*1:One of major cellphone dealers
