How would you hack a ProScan tablet, to enable the Keyboard ? - Page 1
Forum section: electronics / beginners

author: MathWizard
author_rank: Super Contributor
timestamp: April 14, 2024, 12:43:25 pm
content: I have this old ProScan PLT7100G, it came with a mini-USB keyboard. But from day 1, the KB never worked, and I read you had to buy some code or firmware update, to allow KB usage.Here's some spec'sPROSCAN PLT7100GK_JV 7" Dual-Core Tablet Features:- Computer Type: Tablet- Screen Size (Measured Diagonally): 7"- Processor: 1GHz Dual Core Processor- Memory: 512MB DDR3- HDD: 4GB- Input/Output: 1 Mini USB 2.0 Port, 1 Headphone Jack- Speakers: Yes- Battery Type: Rechargeable Built-In- Internet Connectivity: 802.11 b/g- USB Ports: 1 Mini USB 2.0- Operating System: Android 4.4 Kit Kat- Color: Black- Includes: Tablet, Case, Keyboard, Owner's Manual- Dimensions: 6.75"L x 10.5"W x 3.5"H- Weight: 1.9 lbs.- Display Size - Tablet: 7"- Memory - Tablet: 512 MB DDR3PROSCAN PLT7100GK_JV 7" Dual-Core Tablet Specifications:Processor & ChipsetProcessor Speed: 1 GHzProcessor Core: Dual-core (2 Core)MemoryStandard Memory: 512 MBMemory Technology: DDR3 SDRAMStorageFlash Memory Capacity: 4 GBOptical Drive Type: NoDisplay & GraphicsScreen Size: 7"Aspect Ratio: 15: 9Screen Resolution: 800 x 480Multi-touch Screen: YesNetwork & CommunicationWireless LAN: YesWireless LAN Standard: IEEE 802.11b/gInterfaces/PortsTotal Number of Mini USB Ports: 1Built-in DevicesSensor Type: AccelerometerFront Camera/Webcam: YesFront Camera Resolution/Webcam Resolution: 300 KilopixelSoftwareOperating System Platform: AndroidOperating System: Android 4.4 KitKatSo IDK anything about Android or Kitkat. But what might they have done, to block the KB. ? I can try hooking up the KB to my PC, or a scope or logic analyzer, to see what it might be doing. Not that I know much of anything about USB protocol.I assume the KB works, but it's just deactivated in software on the tablet. IDK how easy it is to install new programs on this thing. Maybe it has to be hacked just to do that for all I know.I just uploaded my 1st LED blinker code to a STM32F103, using a BusPirate, and Ardunio IDE. But to get to that point, I was using WireShark, and looking at what USB is doing.I'm on Windows 10, and that's built to allow all kinds of stuff to run, like diagnostics. I know this tablet might not be like that.Any thoughts ? I'm just learning some C++, but if all I had to do to unlock the USB keyboard, was change some registry setting with some software, I'd try it.

author: coromonadalix
author_rank: Super Contributor
timestamp: April 14, 2024, 02:22:10 pm
content: for what you're writing, you seem to have an hardware problem not android related one, while connecting a mouse or kb android should enable them if all is oki have old 4.4 devices, car radio and small mini pc boards, simply connect thembefore the device boots upshould do okay ??unless broken usb ports not sure it use bluetooth connectivity hacking it is going way overboardthe keyboard was at one time an option for the tablet ...

author: MathWizard
author_rank: Super Contributor
timestamp: April 18, 2024, 03:47:13 am
content: No I'm pretty sure it was a paywall thing. But I don't care about the tablet, I just want to try "hacking" it for fun. I'd love to take it apart, but I'm afraid I'd never get it back together. And no way could I go probing or soldering inside one of these, not if they are as bad as cellphones anyways.Ok I see Android is like Linux, and people have made programs, to hack/gain root permissions, for some similar products. IDK much about all that stuff, but I find it interesting. Like putting Linux on xbox.If possible, I would like to upload some trimmed down OS to the tablet, and without all the bloatware on it.