Nokia Energy Profiler is a stand-alone test and measurement application for Nokia S60 3rd Edition, Feature Pack 1 devices (and onwards). The application allows developers to test and monitor their application’s energy usage in real time in the target device.

The application is available as a SIS package for for Nokia S60 3rd Edition devices, but measurement works only in 3rd Edition, Feature Pack 1 (or newer). Older devices can still view files.

Installation

The installation package (SIS) can be transferred to a device in multiple different ways, for example, using USB, Bluetooth, MMC, or direct download from the Internet. In this example, the application is installed using an USB cable and Nokia PC Suite. If you don’t have PC suite installed, you can use alternative methods or you can download and install PC suite from Nokia product support pages.

1. Connect the device to a PC using a USB cable.
2. Select the PC Suite mode for USB connection.
3. Double-click the SIS package in PC Suite.
4. Answer Yes to the installation confirmation in PC.

Nokia PC suite now transfers the SIS package automatically to the device and starts the installation procedure.

5. Answer Yes to the installation confirmation on the device screen.
6. Select Continue in the Details screen.
7. Wait for the application to be installed. A progress bar is shown on the screen.

Figure 1: Connect USB cable and select PC Suite mode.

Figure 2: Confirm Yes to install.

Figure 3: Installation Details for the application.

After installation, the device returns to the state where it was before the installation started. You can also see an “Installation complete” confirmation note on your PC and can detach the USB cable. You are now ready to run your first measurements with Nokia Energy Profiler.

Usage

The Nokia Energy Profiler application is placed to the installed applications folder of your device. This folder is typically ‘Applications’ or ‘My Own’.

1. Start the application by selecting the icon and pressing the selection key.
2. Choose Options > Start to start tracing and recording the power consumption of the device. You can also use ‘2’ key.

Figure 4: Start banner with version information.

Figure 5: Start measurements from Options menu.

Figure 6: Measurement running in Nokia Energy Profiler.

A blinking red dot and a power consumption graph is drawn on the screen. Press ‘up’ and ‘down’ keys to change vertical scale. Leave Nokia Energy Profiler running and perform your testin by pressing ‘End’ key which sends it to background. Hold ‘applications’ key to select and switch back to the profiler.

TIPS

• Automatic screenshots are enabled by default. Disable them and use 1 (or 5 s) measurement period if you want accurate results in standby.
• Don’t keep unnecessary applications running during the test. Applications that are left on the background may affect the results because Nokia Energy Profiler measures the total power usage.
• You can also record screenshots during the test as part of the trace. See Options > Settings and Screenshots tab for the settings. Insert markers to the trace by holding ‘5’ key.
• Do not keep the charger connected during measurements because it produces errorneous results. The graph background is gray when the charger is connected.
• Place Nokia Energy Profiler as the first in Active Standby Applications. This way you can very rapidly switch to it from the active standby screen.
• Note that you get more vertical zoom if you hold the down/up key in the normal zoom extremes.
• Although the battery capacity is normally read correctly check it because it may a wrong mAh value.

After the test is executed, go back to the Nokia Energy Profiler application and select Options > Stop to stop the measurements. Save the results by selecting Options > File > Save.

Now you can either view the results on the screen immediately or export the results in various formats for later analysis by selecting Options > File > Export.

Shortcut keys

Screen icons

Below are three screenshots from a recording from N81 where a photo was taken with the camera.

Figure 9: Nokia Energy Profiler in view mode.

Figure 10: Instant power consumption was over 1.03W when the photo is taken.

Figure 11: Switch to Current consumption view shows 0.26A.

Please read Options > Help because it actually has some very useful information.