Today I was finished with a little project I have been working on. It took about two days of internet searching and ideas
The result is a modified USB cable with a SE Fastport connector, I have tested it with my SE phone C510i and it works great with Mintyboost v2 !!
With one set of batteries I got approximately a 12 % increase of the battery life, it took about an half an hour to get that.
Now I will describe how I made this cable !
The first thing I did was to find information about which PIN it is on the Fastport connector that is the charging pin. This is what I found: http://pinouts.ru/CellularPhonesCables/ ... nout.shtml the charging pin is the twelfth pin and the GND is the ninth pin.
With this information I then took my SE CST-60 (the wall charger for my phone) and measured the volt the charger squeezed out with my multimeter.The volt was 5.7 V, great a little bit high but it should work !! But now I come to problem where I should get a lose Fastport connector, I searched on Google after it but did'nt find anyone. So I decided to strip off the Fastport connector from my CST-60 (when I did this decision I have already ordered a new CST-60, so no lose there
). Now I had a Fastport connector, the second thing i needed was a USB cable, which I had Now I had all the parts I needed for the building of the cable !
Here is some pictures I taked under the building process:
And here is the proof that the cable is working !!
This is the battery in my phone:
Update (14/8):
My mother has a Se F500i, so I had a thought that Mintyboost v2 also should work with older SE models. So I took the wall charger CST-13 that is the standard charger for her phone and measured the voltage output, the voltage output I got was 5.13 V.
After that discovery I beginned to search after which PIN it is that is the charger pin and the GND pin, like I did the last time. I found the PIN output at the same site where I found it the first time. Link: http://pinouts.ru/CellularPhones-P-W/er ... nout.shtml . The charger pin is the eleventh pin and the GND pin is the tenth pin ! Now when I knowed everything that I needed to know, I began to strip off the charger contact from the wall charger (CST-13) and took the modified USB cable I created the last time and soldered the Fastport connector and the old charger connector together.
Here is the result:
And I'm glad to announce that Mintyboost (v2) is working with the SE F500i phone
!Here is a video that is showing Mintyboost v2 charging the F500i:
http://vimeo.com/6103352
As an ending in this thread I will say, this is all from me ^^ !!
But I will add also that I did not modified the Mintyboost, I used the common resistor solution that is two 100k in Pull-Up mode.
And another thing I will add also is that this solution should work with all SE phones that has a Fastport connector or a older connector like this one: http://pici.se/454834
EDIT: Very Important
I forgot to write this, the charging icon will not disappear when the batteries are dead so if don't won't your phone to discharging then you should look at Settings-->Phone Status (I think) and if the battery level is stopping at a certain level and also if the Mintyboost chip is not warm, UNPLUG the phone from the Mintyboost !!
