Introduction
After many years of use, the solar panels in your Texas Instruments TI-30X IIS will slowly decay, and their capacity to charge will diminish. Thankfully, this can be easily fixed with a bit of time, patience, and some basic tools.
This guide demonstrates how to remove and replace the solar panels.
Caution: Desoldering and soldering presents the potential for device damage and burns. Always solder in well-ventilated environments.
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Wedge an opening tool in the gap between the front and back panel, then gently pry until the tabs release.
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Gently lift up the front of the motherboard, at the top of the calculator.
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Desolder the positive and negative terminals on the solar panel
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Use the tip of a spudger to "walk" the solar panel out of its housing, by pushing it down through the two cutouts until it slides out of the bottom.
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Remove the solar panel.
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To reassemble your device, follow these instructions in reverse order.
