I havnt found an alternative charger yet, but i'm using the 2nd battery and USB cable to 'try' to charge it.
last night i charged for 4 hours until green light shown. however, this is very horrible: the green light remains even after i unplugged my USB cable. I was too tired to continue fixing it so went to bed, and when i woke up, the green light was still there! (like for 6 hours or something?) and later in the morning it went back to normal white light illumination.
i spent the entire morning trying to flash my device. i used 3 laptops which i borrowed from my roommates. (mine runs windows 7 x86; another runs win XP 32bit, another runs win 7 i forgot check the bit) and still the problem stuck at 'suitable device not found'.
i used almost all solutions i can google, including turning on device + U key while at 'suitable device not found, waiting' line.
yes i was thinking the same too. the Nokia with USB logo screen (i got both dim and bright screen through all the trials) suggested that the device's port might be still function able, but i also constantly checking 'device manager' through 'my computer' and i think the computer did not know where is the location of the phone (however, mass storage mode have no trouble with all 3 computers). In some cases, i got the 'USB cannot recognised' error message but automatic troubleshooting (through windows update) cannot work...
in addition, i cannot power up my device without the help from USB cable (connected via computer).
and... my battery last no longer thn half hour after disconnected from USB..................................
so my conclusion is back to:
1) hardware failure
2) flasher's problem (since i used the common flasher and common root on all 3 computers, but is very unlikely)
actually is plug in usb, press U and then you power on, not after.
Guess you need to send to Nokia for inspection, a weird chance that the emmc is corrupted