|follow the below guide st your own risk, Linxtablet is not liable for any damage|
Cheaper, easier tablet firmware/BIOS reflash.
EDIT: Just to be clear.. I mean firmware reflashing after bricking the tablet. You know how...
Budget Ebay SPI Programmers:
I've been looking at making the whole process of firmware flashing these tablets both easier to do and cheaper.
This initial post will cover the hardware. I'll add software details and instructions for everything in a later post.
My guide to performing this job with a Raspberry Pi was necessarily long as most forum members will not have seen a Pi before, let alone Linux.
I do understand that this might have "put off" some from performing an otherwise easy task.
I've bought a few cheap programmers to have a play with.. and to give further options to forum members.
It's become a bit of a personal challenge to find the cheapest Ebay device that can be made to work successfully.. Sad, yes?
This one cost £4.55 from China. The Ebay link is: http://www.ebay.co.uk/itm/251932290901? ... EBIDX%3AIT . It took 2 weeks for delivery and was the first of 5 different programmers to arrive.
This is a generic chip programmer. It has a few operating modes, including the one we are interested in here: SPI flash chip programming.
There are a few other similar programmers that meet the requirements or can be made to work easily.
I'm only looking at USB programmers here, as serial and parallel (printer) ports are becoming quite rare on computers now.
Price: As low a possible.
Operating system: Can be used from a windows or Linux computer.
USB connection. Any type of USB connection is fine. Worse case scenario is that a USB cable would have to be used.
SPI connections: Easily accessible connections. Standard header pins are the easiest to use. Nothing required for this one, but some basic soldering skills may be required for others..
If you are really stuck, PM me and I'll do this part for you.. The "iron is always hot".
SPI voltage: The tablet firmware chip requires 3.3V SPI programming, so the programmer should support this. There is normally a moveable link somewhere on the programmer for user selection between 3.3V and 5V.
It is possible to use a 5V programmer for this purpose. You would then only require a few resistors (pennies from Ebay). PM me if you want details.
As per the Raspberry Pi. A chip test clip. A few breadboard style jumper wires. See the Raspberry Pi flashing guide for details.
The most expensive required part is the Pomona 5250 test clip (highly recommended. It works! Some cheaper clips don't).
This is about £13 on Ebay.
I'll cover the required windows software and instructions for use in a later post.
Written on my Linx 10, running 64bit Linux, sat in the hospital car park...