![My casio fx-CG 20 is very dim even when there is plenty of battery and the brightness is full too. Pls help i have a test tmr : r/calculators My casio fx-CG 20 is very dim even when there is plenty of battery and the brightness is full too. Pls help i have a test tmr : r/calculators](https://i.redd.it/87w0gbamzew31.jpg)
My casio fx-CG 20 is very dim even when there is plenty of battery and the brightness is full too. Pls help i have a test tmr : r/calculators
![Amazon.com: CASIO PRIZM FX-CG50 Color Graphing Calculator,Black & White,7.21"Wx10.32"Lx2.05"H : Everything Else Amazon.com: CASIO PRIZM FX-CG50 Color Graphing Calculator,Black & White,7.21"Wx10.32"Lx2.05"H : Everything Else](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/813EKzrfJ6L.jpg)
Amazon.com: CASIO PRIZM FX-CG50 Color Graphing Calculator,Black & White,7.21"Wx10.32"Lx2.05"H : Everything Else
![Amazon.com: CASIO PRIZM FX-CG50 Color Graphing Calculator,Black & White,7.21"Wx10.32"Lx2.05"H : Everything Else Amazon.com: CASIO PRIZM FX-CG50 Color Graphing Calculator,Black & White,7.21"Wx10.32"Lx2.05"H : Everything Else](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/81b79Klxk6L.jpg)