so did you guys that are having trouble with the PG41IMG files get a propmt to update?
there are basically only 2 reasons that any PxxxIMG file doesnt work,when the correct file is placed on the root of an sd card:
1)the sd card is not formated FAT32. put the card in a card reader,or mount it as a disc drive. right click onthe drive that is that card in a "windows explorer" window. click properties. if the SD card is formatted plain FAT,or anything other than FAT32 youll need to copy everytthing onit(formatting wipes it clean) and re-format it. or get yourself a second card to format correctly and use for flashing PG41IMG files.
2)the file is not correctly named. the flyer needs to see "PG41IMG.zip" exactly. common errors are to type in the .zip when using windows,wich automatically adds and hides the file extention. this results in the file being named "PG41IMG.zip.zip"
on rarer occasions,leaving the .zip off thinking the extension is being automatically added will result in simply "PG41IMG". neither will work
figure out wich of those 2 things are wrong and the file will be found and flash. or you could simply use the fastboot method.