Radio Firmware 49026
Your 8390 lasts only 12 hours? You need to upgrade your RF.
You need:
An 8390 ;-)
An usb cable
Warning: FOLLOW this instruction or you'll FRY you phone! I'll not be held responsible for any damage to your equipment!
Currently the number of 8390s in the world fried for not following my instructions correctly are:
2
Do you want to increase this number? No? Then READ CAREFULLY!
So:
Close activesync (Kill wcescomm.exe)
Turn off the 8390
Connect it to the usb
Turn it on pressing the DOWN key
A boot menu will appear
Go to Rf module upgrade IMPORTANT!! RF not firmware/rom/microp! RF upgrade!
Select by usb
Launch the Falcon R02 software (included in the zip file) with this settings:
Wait crossing your fingers
Reboot phone when asked
Check if upgrade is done by dialing *#83908390*
A note: According to Mitac service center, there isn't an official version RF49026.
Below a transcription of emails. Mitac is in BLUE. Me is in GREEN
Dear Sir, Actually the version I would suggest to install is the R44 along with the 47026 for the radio. I have checked that the address rma@mio-tech.be works fine, please try to re-send your request. Best regardsI've heard some rumors on internet that in china there's the R45 with the 49026 for radio. When will be released the european version?
Dear Sir, Actually radio firmware version you are referring to has not been approved in Europe and thus cannot be installed. If you want to achieve the upgrade as mentioned previously, it will take the time for your device to go back and forth between Italy and Belgium + and extra 2-3 days to have it upgraded.