![Brandon Myers 🚦 on Twitter: "I've got an old Hewlett-Packard HP-28S that needs a battery cover. I've replaced the calculator with a HP-35S but I'd like to get this old one running Brandon Myers 🚦 on Twitter: "I've got an old Hewlett-Packard HP-28S that needs a battery cover. I've replaced the calculator with a HP-35S but I'd like to get this old one running](https://pbs.twimg.com/media/DXeGMbtVMAAv2NL.jpg)
Brandon Myers 🚦 on Twitter: "I've got an old Hewlett-Packard HP-28S that needs a battery cover. I've replaced the calculator with a HP-35S but I'd like to get this old one running
![Finally got my HP 35s! time to master this puppy. Looks better in person then I imagined. Keys feel great! I am in RPN heaven here. This will be my first Hp Finally got my HP 35s! time to master this puppy. Looks better in person then I imagined. Keys feel great! I am in RPN heaven here. This will be my first Hp](https://preview.redd.it/qvby7oz2sax51.jpg?auto=webp&s=f15db13714a913cae1d17c6dae1ae7aee68e4105)
Finally got my HP 35s! time to master this puppy. Looks better in person then I imagined. Keys feel great! I am in RPN heaven here. This will be my first Hp
![Anyone encountered this screen problem with their hp 35s? Is it common problem with the HP35s? : r/calculators Anyone encountered this screen problem with their hp 35s? Is it common problem with the HP35s? : r/calculators](https://preview.redd.it/fkvqg1kohto91.jpg?auto=webp&s=815826ee643dc11df4bc18e4e642677d85935ef8)
Anyone encountered this screen problem with their hp 35s? Is it common problem with the HP35s? : r/calculators
![HP F2215AA 35s Scientific Calculator 100 Functions - 14 Digit(s) - LCD - Battery Powered - 0.7" x by HP - Shop Online for Electronics in the United Arab Emirates HP F2215AA 35s Scientific Calculator 100 Functions - 14 Digit(s) - LCD - Battery Powered - 0.7" x by HP - Shop Online for Electronics in the United Arab Emirates](https://cdn-o.fishpond.com/0001/235/216/1437341468/original.jpeg)
HP F2215AA 35s Scientific Calculator 100 Functions - 14 Digit(s) - LCD - Battery Powered - 0.7" x by HP - Shop Online for Electronics in the United Arab Emirates
![HP F2215AA 35s Scientific Calculator 100 Functions - 14 Digit(s) - LCD - Battery Powered - 0.7" x by HP - Shop Online for Electronics in the United Arab Emirates HP F2215AA 35s Scientific Calculator 100 Functions - 14 Digit(s) - LCD - Battery Powered - 0.7" x by HP - Shop Online for Electronics in the United Arab Emirates](https://cdn-o.fishpond.com/0001/235/216/317175637/original.jpeg)