0

Circumventing Kindle DX Graphite’s Dead Battery Protocol

Brilliant ‘scope detective work‘ by Neil Ramsay over at Blood, Sweat and Solder, revitalizing an otherwise dead Kindle DX Graphite.

IMG_20160423_211849

I have an old Kindle DX Graphite lying around. The Lithium Polymer battery on it was well below charge and the safety on it was refusing to allow a recharge via the Kindle’s USB port.

I opened up the Kindle, set my bench-top power supply up to 3.7 V and connected it to the battery headers, that I had soldered some jumper wire to. The Kindle refused to boot!

I decided to jump start the battery with my PSU, but I also wanted to break Amazon’s restrictions and get the Kindle to boot without the battery.

I did some Googling but found very little. So here is what I learned along the way:

Read more.

IMG_20160313_140134

readbytesmbus

Read more.


Please vote for Limor Fried (Ladyada) for Red Hat’s Women in Open Source Award
Our Ladyada (Limor Fried) was nominated for Red Hat’s Women in Open Source Award! Please vote for her! Visit: https://www.redhat.com/en/about/women-in-open-source

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 10,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — The strange world of low-margin online returns

Wearables — Hot glue undo

Electronics — Diamonds may be forever… but components? Not so much.

Biohacking — Raspberry Pi Health Dashboard

Python for Microcontrollers — Python is for the birds, deep dive, Raspberry Pi store, and more! #Python #Adafruit #CircuitPython @circuitpython @micropython @ThePSF @Adafruit

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.