MMA7455 and LGA package

Some time ago I got MMA7455L Three Axis Low-g Digital Output Accelerometer to play with, whohoo! But its an LGA package:

Worries no more, a little bit soldering yesterday and now I can proceed testing it:

I have not tested it, though, so stay tuned 😉

Nokia CA-53 cable (USB cable used for flashing) pinout







Pin Signal Description
5 Vcc +5V PC USB pin 1
6 USB DATA+ PC USB pin 3
7 USB DATA- PC USB pin 2
8 GND PC USB pin 4


Nokia (6131 in my case) flashing (programming)

Good info here – http://forum.mobiles.lt/index.php?topic=10487.0

In a nutshell:
1. Clean PC from any nokia software:

2. Restart PC

3. Download and install Pxoenix 2009
4. Download and install Your phone firmware
5. Restart PC
6. Connect phone to PC using USB cable
7. In Pxoenix 2009 – manage connections, add and apply USB connection
8. Scan product (Ctrl+R)
9. If phone not found – check cable
10. If still no luck – GO TO 1.
11. Select Flashing->Firmware update
12. Select product (if not selected)
13. Press Refurbish
14. Pray…
You can also Flash dead Nokia which does not start – then:
in a step 7 select No connection (remove other connections)
in a step 8 just select Open product and select Your product
And everything at Your own risk !