Hello, I need help.
I have Sencor SFP-3750 (2GB), based on Sigmatel 35xx.
Original firmware version: Sencor SFP-3750, v007.004.260
The player has same hardware as Ritmix RF-3000.
And now the problem:
Player worked well, I did many changes between Sencor's and Ritmix's firmware (versions 007.004.260 and 006.004.260) and everytime the player was dead I could bring back to life. But then I uploaded some old firmware from here
(I can send you the file, when you don't have the registration, but I don't think it could help), which is one of the first versions, and since this the player doesn't work with usbmsc.sb (uploaded in Recovery mode) which worked before.
Only usbmsc.sb from v006.003
.260 (i don't know the difference between 4 and 3 in minor version) works, but player shows only 1GB capacity not whole 2GB.
Even the Sigmatel Firmware Extractor shows patition(1) as 1GB instead 2GB as it was before.
When I use this usbmsc.sb to boot to recovery mode and then update to firmware, which worked before, it don't work. Neither as usb stick nor as player.
Only Sencor firmware v006.003.260 works a little. When I enable the player, it shows the Sencor logo and then it restarts ant show the logo again and again in loop. But doesn't work as usb stick (usb mass storage) just like with other firmwares.
Every other firmware, which worked before well doesn't work now.
The strange thing is that the capacity changed form 2GB to 1GB. Is not only the capacity of FAT, also the hidden partition (visible in Sigmatel Firmware Extractor) changed the capacity.
Is there any posibility how manage the internal hidden partitions.
I thought that the player couldn't be f*cked up forever. I thought that the Recovery mode (holding the play button when inserting to USB) should load the usbmsc.sb and work independent on what sh*ts are inside the players memory.
I found that my player uses 2x1GB chip: HY27UH08AG5M. It uses Chip Select pins to set which "chip" to work with (there is only one physical chip, but two logical chips).
The v006.003.260 is 1GB firmware. It's updater.sb works (it doesn't probe the second chip). The The v006.004.260 is 2GB firmware and so it probes both chips. For some reason the 2GB uploader hangs.
Does anybody know how to fix this?
I have no idea why the 2GB uploader.sb hangs the player.
Please can you help me. I don't where could be the problem.
Thanks a lot to anybody bringing a helping hand.