Category Archives: Android

Mobile phone connection modes

The different modes are:
G – GPRS (32-40kbps)
E – EDGE (~96kbps)
3G – 3rd Generation (128-320kbps)
H – HSDPA (1.2Mbps-7.2Mbps)


Android ADB Wireless


With the “adbWireless” app, you can connected to the android phone, over WIFI, as though you were connected via a USB cable.


(image care of AndroidCentral)


The “adb” command is usually part of the “Android SDK” (software development kit) which can be downloaded here.


A great article on the SDK can be found on AndroidCentral also, click here to be re-directed.

HTC Battery Life – possible trick

I’ll need to confirm this but I’ve just found on the web (via an anonymous post) that you can almost “double”….. battery life…..


I highly doubt this, but it’s worth a punt.

  1. Turn your device ON and Charge the device for 8 hours or more
  2. Unplug the device and Turn the phone OFF and charge for 1 hour
  3. Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour

Seems like allot of “faffing” so I’ll need to confirm this.

Android – Lots of Tips and Tricks

I came across a page that holds many tips, tricks, and tutorials.

The link to the page is:


Worth a read !

Android – HTC Desire HD SAFEMODE

Lifted from

Android’s SAFEMODE is similar to Windows SAFEMODE.

Booting a device into safemode means that only the essential apps are running.

This may be needed if the device is caught within a FORCE CLOSE LOOP.

A ‘force close loop’ is when an unstable application is involuntary closed by the system, and then it’s automatically launched again, then closed, and this goes on and on, and prevents you from accessing any of Android’s menus to kill the loop.



On my desire HD – to enter the SAFEMODE, I performed the following steps:

  1. Remove the battery to reset the phone (you’ll loose temporary data stored in the RAM)
  2. Re-insert the battery and press the POWER button
  3. As soon as the first HTC icon appears, PRESS AND HOLD the VOLUMN DOWN button till the device fully loads

Once the phone has completely switched on, you’ll see a transparent SAFEMODE watermark in the lower left hand corner of the screen.

Android – HTC Desire HD BootLoader, HBOOT

I’m not entirely sure on the fully purpose of this, but it’s possible to perform a FACTORY RESET when accessing the BootLoader / HBOOT screen.


A quick note:

FOLLOWING THESE INSTRUCTIONS IS ENTIRELY AT YOUR OWN RISK – these notes are purely for my own reference.


BootLoader / HBOOT

On my desire HD – to enter the BootLoader / HBOOT screen, perform the following steps.

  1. Remove the battery to reset the phone (you’ll loose temporary data stored in the RAM)
  2. Re-insert the battery and PRESS AND HOLD the VOLUMN DOWN button and then also press the POWER button
  3. After a few seconds, a white screen with three ANDROID figures on the bottom of the screen will appear

In this BootLoader / HBOOT screen, you have several options – most of which I currently do not understand, but will update accordingly.

One of the options is FACTORY RESET.

To select this, use the UP and DOWN VOLUMN buttons to change the option, and press the POWER button to select the option.


During RECOVERY, and FACTORY RESET, pressing the VOLUMN UP + POWER button combination shows some debugging text / options – again, which I’m not entirely sure of.

HTC Desire HD Battery Life information

This is a post to make a note of the website.


The links of particular interest that relates to battery life is:



To recondition the battery so that the battery gauge is more accurate, and that you get the most from the battery is:


The command to remove the battery file is step 6 in the above page:

  1. **Root users only** Using a Terminal Emulator, type “su” enter, followed by “rm /data/system/batterystats.bin”