Takes less than 3 minutes! Here is the procedure: Download the HP50g ROM update. Copy the files: ?????.bin and update.scp that should be located in the zip folder into a SD card formatted in FAT File System (not FAT32). On the calculator, Press and hold the + and - Button and press on the RESET button using a paper clip or other blunt object. Release the RESET button, wait 2 second and release the + and - keys.

Authorised HP Calculator Resellers in Singapore: Singapore’s Central Business District (CBD): Sea Sound The Arcade, 11 Collyer Quay, Singapore Nearby (Shenton Way) Raffles Place MRT Station (EW14) Unit 01-25 (Ground Floor, Raffles Place Entrance) Tel: 6222 8449 Prestige Time Bras Basah Complex, 231 Bain Street. Singapore Nearby City Hall MRT Station (EW13/NS25) Unit 01-25 (Ground Floor opposite Raffles Hotel) Tel: 6339 3837 Perfect Watch Sim Lim Square, 1 Rochor Canal Road, Singapore

Calculator is ok till I changed its batteries Now my calculator cannot startup! Remember, always before changing batteries, back up any programs or solver equations! One common problem is after installing new batteries, the calculator appears dead and will not power up. This can be sometimes be fixed by completely resetting the calculator and completely clearing memory. Remove the battery cover and shake the batteries out. Now, using a small coin (or paper clip), slip the sides of the coin between the battery spring clips so that you touch both sides of the battery clips at the same time with the coin.

HP10BII New User’s Primer for Ex-TI User Suppose that you have $1000 to invest for a period of 5 years at an interest rate of 10% per year. How much will you have accumulated at the end of this time period? Here is the HP TI BAII Plus Solution to the Lump Sums problem: In this problem, the $1000 is the present value (PV), N is 5, and I / Y is 10%.

The HP SmartCalc 300s have a Textbook Format Display. You see your expressions as you would on paper.

1. Fractions, mixed numerals, and fraction-decimal conversion. 2. Dedicated square and square root keys. 3. Probability and statistics functions. 4. Intuitive navigation pad. 5. Advanced math functions, including log to any base. 6. Polar-rectangular conversions.

HP 300 SmartCalc Plus HP 300 SmartCalc Plus have Text Book Display (TBD) which allows to see the question as you see them on the paper. It has 249 built-in functions and energy-wise solar power. This calculator is ideal for students to do there difficult math problems in general math, pre-algebra/algebra, trigonometry, statistics,geometry, biology, chemistry, physics, earth science subjects. HP 300s Plus Specifications: HP Part number: F2240AA. Display: Textbook Format Display (TFD), 31 x 96 pixel LCD display.

HP Easy Calc 100 This is for doing basic math calculations. Great for crunching large financial numbers with is thousand comma seperator as you enter numbers. HP EasyCalc 100 has solar power feature with backup battery and has auto power-off. HP EasyCalc 100 Quick Specifications HP Calculator Part Number: F2239AA. Display: 12-digit LCD, Big Digit Size: 12 mm x 3.1 mm, Display Area: 56.6 mm x 16.3 mm. Entry-System Logic: Algebraic