![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 : Clothing, Shoes & Jewelry Amazon.com: CASIO PRIZM FX-CG50 Color Graphing Calculator,Black & White,7.21"Wx10.32"Lx2.05"H : Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/71Jvd1EWeeL._AC_UF894,1000_QL80_.jpg)
Amazon.com: CASIO PRIZM FX-CG50 Color Graphing Calculator,Black & White,7.21"Wx10.32"Lx2.05"H : Clothing, Shoes & Jewelry
![Casio - fx-CG20 PRIZM - - Graphic calculator - Casio fxCG20 PRIZM - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA Casio - fx-CG20 PRIZM - - Graphic calculator - Casio fxCG20 PRIZM - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA](https://casio.ledudu.com/images/pockets/casio/boites/fxcg20.jpg)