Quote:
Originally Posted by ok1";p="
Hi tadad1 
Have a question, its " is the boot sector related to the firmware?? "
I have an new mp4 player which has some problemes in booting, but i have some fears from osing the firmware!! 
please tell me more detailes about that!
thanx! |
Hello, the firmware in player is loaded in the same memory chip used to store files.
when you turn on the player the firmware is loaded by the bootloader (is when the screen become blue with a sand clock) then the firmware takes control of memory and the space not used by it self is released for by used as a hard disk, when you plug the player en USB Port the firmware use a standard protocol to tell to the operative system of computer what the device is a mass storage device then the operative system of Computer treat the device as a hard drive and when de OS make a partition, MBR, boot sector and FAT on it become a disk. because that you must not be able to clear fimware using a disk utility, because the firmware self protect making the part of memory where him reside "invisible" (that is because if the memory is 1GigaByte you only see Aprox 950 MB).
There is another thing called "bootloader" must not confused with the bootsector. the bootloader is the program which load the firmware as the BIOS in a PC, this bootloader is in processor chip. if you read the recovery dead player guide you must make a short in the memory chip for the processor's bootloader canīt recognize the memory chip and then goes to ADFU mode making possible recover a dead player.