How to fix/flash the A6 firmware Battery Drain Problem on the HP TouchPad method 1
117HP TouchPad Heavy Battery Drain issues during deep sleep (Important):
The Problem:
Developer James Sullins, Aka Jcsullins, has informed HP TouchPads users that there is a problem with our tablets A6 Firmware. This issue can cause an usually high battery drain during sleep. This problem occurs overtime while running both CyanogeMod and WebOS, on the HP TouchPad. As a results the Touchpads battery drains more quickly with daily use and the overall life span is reduced.
The Solution:
Reflashing the A6 Firmware effectively fixes the problem but may need to be repeated as a part of regular HP TouchPad maintenance. Watch this video and follow the step by step instructions to reflash your own Touchpads A6 Firmware.
How to Reflash the A6 Firmware
1) Boot to WebOs and in the "Just Type" box enter the following: webos20090606
-Tap the developer mode icon and slide the toggle to on, then press submit.
WARNING: Do not enter a password. Just tap submit.
-Plug the USB cable into the HP TouchPad and your PC.
2)Install Java and the Novacom software*
- Note* If you have already previously installed Android with, Java and Novacom drivers, then proceed to step 3.
a)Download Java:
http://java.com/en/download/
b)The Novacom Universal installer is now broken, use the manual Novacom links for your OS below:
Win32:
http://www.mediafire.com/download/w1jwel9sd3c4wd2/novacom-win-32.tgz
Win64:
http://www.mediafire.com/download/2p2k3ik89a474ky/novacom-win-64.tgz
Linux32:
http://www.mediafire.com/download/q2jdgec5asahmds/novacom-linux-32.tgz
Linux64:
http://www.mediafire.com/download/8tu5f66fl48sv83/novacom-linux-64.tgz
Mac OSX:
http://www.mediafire.com/download/fiv9xqy3b683aay/novacom-mac.tgz
3)Open windows explorer and go to C:/Program Files/Palm, Inc/Terminal
-Now run the Terminal.bat*
-Note* if you are using a 64 bit OS and get the Error "Windows cannot find Javaw..." you will need to copy the Javaw.eve from C:/Windows/SysWOW64 Or C:/program files/java/bin/javaw.exe and paste it into C:/Windows/System32.
4)In the open Novaterm window, select file\connect\Ok
-Now copy and paste the following line into Novaterm and press enter*
PmA6Updater -f -d 0 /lib/firmware/a6_firmware.txt.00
-Note* Do Not! disconnect the TouchPad After starting this procedure.
-Novaterm will tell you "firmware update complete"
- In the open Novaterm window, select file\disconnect\Ok
-Congratulations you have now relfashed the A6 Firmware and can safely disconnect your HP TouchPad from the USB cable.
Note: If you input the command and get a message saying it said can't open the A6 device, then try toggling developer mode off and on.
A6 Firmware Threads & Info:
[Fix Guide] How to Reflash the A6 Firmware XDA Developers
http://forum.xda-developers.com/showthread.php?t=2283168
Battery Drain issues on HP TouchPad
http://rootzwiki.com/topic/39743-battery-drain-issues-on-hp-touchpad/
How to install jcsullins CM10 Unofficial Preview Builds:
http://rootzwiki.com/topic/31548-rom-0418-how-to-install-jcsullins-cm10-unofficial-preview-builds-edited-42613/
CM10.1 Test Builds with Sound on the HP TouchPad Android 4.2.2:
http://rootzwiki.com/topic/40107-rom-cm101-test-builds-with-sound-on-the-hp-touchpad-android-422-edited-42613/
How to test your battery drain during sleep:
-To monitor your battery drain history during sleep install the free app Battery Monitor Widget:
https://play.google.com/store/apps/details?id=ccc71.bmw&hl=en
-Once installed open the app and go to history to see a log of your devices sleep history.
-To setup the Battery Calibration correctly for the HP TouchPad,
-go to BMW settings/calibration/Battery capacity/ and set it to 6300 (*f29c), 6000 (*i29c) or 5800 (*s29c) and tap OK
-Note* See the Battery p/n # on the original packaging.
Or
-You can also use Cool-Tools to monitor your battery drain in real time.
https://play.google.com/store/apps/details?id=ds.cpuoverlay&hl=en
-Watch the instructional video Here.
http://youtu.be/TZIVZ-zMfeo