Home made solar Mobile charger

I am using my homemade solar charger for my batteries and mobile. do you?
here is the simplest way of making it:
you can not use the output of the solar panel directly to charge the battery. supply is required to be smooth regulated 5 volts.
So First I tried to make the power supply regulator using the old mobile charger. you can take out the rectifier portion and use the regulator of the old charger. to give 12v unregulated output of the solar panel.
then I found one old car mobile charger that uses 12v from the battery and gives 5v output.
my purpose solved!! I gave output from solar panel to car charger's 12 v input. that's all.
solar panel costs 250 and car charger 150 total 400. and some soldering.
or if using a regular mobile charger then it will cost 300.

Update Sony Xperia Sola to Official Android 4.0.4 ICS Firmware [6.1.1.B.1.10]

Procedure to Upgrade Sony Xperia Sola MT27i to Official Android 4.0.4 ICS Firmware (6.1.1.B.1.10):

• Download Xperia Flashtool from : http://www.flashtool.net/download.php
• Download Xperia Sola MT27i Official Android 4.0.4 ICS Firmware package (6.1.1.B.1.10) from : http://d-h.st/PEX
• Install Flashtool that you’ve just downloaded in your computer to C: –> Flashtool
• move MT27i_6.1.1.B.1.54_India.ftf file into C: –> Flashtool –> Firmwares
• Open Xperia Flashtool. Select Flash option (Black Bolt icon) from the top left corner of the tool

 

• It will ask you to select either Flashmode or Fastboot mode. Select Flashmode & proceed further by hitting OK button.
• On next screen, Firmware selection window will appear. On left side, select MT27i (version 6.1.1.B.1.10).
• In right side of the tool, tick following 4 options (Caution! Dont tick any other option than 4 mentioned below).
• 1.Wipe data.
• 2.Wipe cache.
• 3.Wipe apps log.
• 4.No final verification.

• Press OK. Wait for Flashtool to prepare firmware installation.
• Now, it will ask you to connect your phone. Before you connect your phone to computer, enter into Flashmode on it. To do so, switch off the phone completely. By holding Volume down key, connect it to PC. If done correctly, you should see a green light on the power.
• After establishing proper connection with the computer, flashing process will start. Firmware installation process may get stuck around 93%, which is normal. It stays there for 20-30 seconds and not more than that.
• Once you get Flashing finished message in Flashtool, remove your phone from PC & wait for it to reboot (It may take more time than usual for booting the device, which is normal. So don’t get panic & be patient).
• There you go! Android 4.0.4 ICS firmware is successfully installed on your Sony Xperia Sola.

 

make use of old sony ericsson phone speakers

I had a Sony Ericsson phone w610i which was stolen and it came with two speakers when I bought it. Now speakers are of no use without that phone.

I wanted to use them with my laptop or any phone using USB supply and 3.5mm audio jack.

I searched for a Sony Ericsson pin diagram and found a link from "Suhashtech". I found the pin diagram, I had one old damaged card reader and an old damaged headphone. That's all thing I need!

I used card reader for USB power supply form laptop (we can use any mobile charger, too), soldered headphone's mic wires to the card reader on one side, and at another side connected it with my Sony Ericsson speaker's power supply. Thus the power supply part is done!

Now for the speaker's left and right channel connection, I used 4 wires those come from audio jack and connects to the left and right speakers of the headphone. I removed headphone speakers and soldered those wires with sony Ericsson speaker's left and right channels.

Thus my speakers, headphone wire, and old card reader are now usable and giving very nice sound output.

I have attached the screenshots

SAVE THE EARTH

There are many things that we can do to save the environment.  Whether you live in Los Angeles or Beijing, you can help to clean up your local environment and work toward improving the global environment. One way you can help the environment is by joining an Environmental Organization.  Many of these groups already have developed action plans for saving the environment.

Helping out:

• At Home
• On the Road
• While Shopping
• In Your Community

Problems to solve:

• Global Warming
• The Ozone Layer
• Air Pollution
• Reducing Waste
• Water Pollution